Hot Frequencies and
Digital Data Transmission Screenshots

The following - very recent! - screenshots have been produced and uploaded to this international pooling webpage by our worldwide net of cooperators, using advanced equipment such as the superb PROCITEC Digital Data Decoders. All frequencies are in kHz, and all system times are UTC. Schedules and traffic details can be found in our 2021/2022 Guide to Utility Radio Stations. Standard aeronautical • meteorological • telecommunication abbreviations and ICAO Airport Codes and Airline Designators can be found everywhere; certain very special procedures and terms - particularly for avionics - are explained hereunder. Latest screenshots on top!


Open-Source Intelligence at its best - here it's Open Signals Intelligence ...
Since 24 FEB 2022, most of those hundreds of aircraft
operated by airlines - such as Aeroflot - in the Russian Federation
and leased from e.g. "offshore" companies elsewhere
and registered in e.g. Bermuda as VP-ABC or VQ-XYZ for tax avoidance
have been "re-registered" (read: seized) under the new callsign series RA73...
These callsigns have never been monitored before
RA73708 is yet another "re-registered" (read: seized) Airbus A321-211
leased from GECAS = General Electric Capital Aviation Services
and originally registered as VQ-BEG in Bermuda ...
Flight AFL1768 enroute UUEE - USPP fuel-on-board and position data
Apart from decoding ADS-C and CPDLC messages such as Basic Reports,
the superb go2MONITOR's Result Viewer displays meta-data
such as sender and recipient identifications extracted from decoder result files

8570.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

10084.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft N511DN + VH-VHD + flight DAH462
ETE = Estimated Time Elapsed
ETP = Equitime Point
FMS = Flight Management System
PFL = Planned Flight Level
PFR = Planned Fuel Remaining
RDA = Radar Data Acquisition
RDC = Route Data Calculation
TI2 = Terminal Information Request

3247.4 kHz ZKLF Auckland Meteo, New Zealand

518.0 kHz NMO United States Coast Guard Honolulu, Hawaii

17958.0 kHz H10 HFDL Muan Air, South Korea, + aircraft B-30C1 + B-5582 + B-8582 + B-8689 + JA886A + flight CES527
Code figures for ZUCK runways braking action - see e.g. here
DT = Destination, followed by the runway number
RWYCC = Runway Condition Code
TI2 = Terminal Information Request
TS = Time Stamp
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

17958.0 kHz H10 HFDL Muan Air, South Korea, + aircraft B-30C1 + B-5582 + B-6326 + B-8687 + B-1018 + JA826P + JA827P + JA885A + flight CA4275
AFS = Auto Flight System
BOM = Bombay
CFB = Centralized Fault Book
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
LGTP = Light Plus Turbulence = relatively greater intensity
TI2 = Terminal Information Request
TPIS = Tire Pressure Indicator System
VDGS = Visual Docking Guidance System

17958.0 kHz H10 HFDL Muan Air, South Korea, + aircraft B-30F3 + B-303A + B-324T + B-325Y + B-326A + B-1882 + B-5582 + JA921A + 9V-SCO + 9V-SMY + flight CES695
Enroute weather ZJSY - ZSNJ ...
FF = Fuel Flow (for engines 1 + 2)
The Periodic Contract is a report sent every ... minutes
It specifies the reporting rate at which the avionics is required
to assemble and downlink the requested information to the ground system
The minimum reporting rate is usually not greater than every 14 minutes
but can vary to suit the need of the ground station
This procedure allows longitudinal and lateral separation of aircraft
in oceanic areas to be reduced to 30 nautical miles

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

4209.5 kHz XVN Nha Trang Radio, Viet Nam
VTS = Vessel Traffic Service

4209.5 kHz XVG Hai Phong Radio, Viet Nam

13324.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft CC-BDB + N507DN + N934AK + RPC9934 + flight AS0895
FMC = Flight Management Computer
FMS = Flight Management System
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCA = Facilities Contact Advisory
FMH = Facilities Message Header = Flight Number
The Waypoint Change Event is triggered by a change
made to the Next, or the Next-plus-one waypoint
This change normally occurs due to normal waypoint sequencing by the FMS
The Next or Next-plus-one waypoint can be either an ATS waypoint or a pilot inserted waypoint

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

4209.5 kHz XVG Hai Phong Radio, Viet Nam

4209.5 kHz XSQ Guangzhou Radio, China

11312.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft A7-ACI + B-6323 + HL7206 + JA894A + RPC9934 + VN-A597 + flight AAR212 + HZ5643
UM169 is a critical procedure, designed to prevent pilots
from acting on any old CPDLC messages
that might have been delayed in the network
The most serious of such cases would be
the pilot executing a clearance that was no longer valid
Air and ground end systems include
(1) Datalink Application Service Element = CPDLC
(2) Aeronautical Telecommunication Network upper layers
(3) TP4 = Transport Protocol Class 4
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

518.0 kHz NMF United States Coast Guard Boston MA, United States of America
BNM = Broadcast Notice to Mariners

518.0 kHz VCG Canadian Coast Guard Moisie QUE, Canada

17985.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft EC-NOE + G-VUFO + N512DN + N848FD + N897FD + OH-LWE + OH-LWS + flight MS0848
AA = Arrival Airport
CFD = Centralized Fault Display
DA = Departure Airport
FPN = Flight Plan Report downlink
REQPWI = Predicted Wind Request for FL 410 390 360
RESPWI/AC = FMS downlink acceptance and insertion of PWI = Predicted Wind uplink data
RESPWI/AK = FMS downlink acknowledgement of PWI = Predicted Wind uplink data
SCV = Surge Control Valve
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCA = Facilities Contact Advisory
FMH = Facilities Message Header = Flight Number
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

19448.5 kHz Digital data station

13882.5 kHz DDK6 Hamburg Meteo, Germany

6559.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft HL7616 + JA811A + XA-VSF + 9V-SMZ + flight LH0010
TI2 = Terminal Information Request
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

10084.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft A6-BLL + A7-ACI + EI-KBI + JY-AYT + 9V-SHV + flight SU1894
Increasing solar activity - and the ionosphere going crazy:
ATIS uplink for a OEJD - OJAI flight ... via Auckland!
UM169 is a critical procedure, designed to prevent pilots
from acting on any old CPDLC messages
that might have been delayed in the network
The most serious of such cases would be
the pilot executing a clearance that was no longer valid
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
REQPWI = Predicted Wind Request for FL 370
RESPWI/AC = FMS downlink acceptance and insertion of PWI = Predicted Wind uplink data
RESPWI/AK = FMS downlink acknowledgement of PWI = Predicted Wind uplink data
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FCA = Facilities Contact Advisory
FCO ADS = Facilities Contact ADS-C
FCO ATC = Facilities Contact CPDLC
FMH = Facilities Message Header = Flight Number
FPO = Facilities Current Position
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

17958.0 kHz H10 HFDL Muan Air, South Korea, + aircraft B-306F + B-308A + B-322J + B-6335 + B-18909 + B-58301 + HL7746 + HL7795 + N880FD + N884FD + N891FD + flight ANA869
B-58301 is a Starlux Airlines Airbus A330-941 operating sightseeing circling flights
RCTP - RCKH - RCTP around the whole island of Taiwan ...
PACD is an ETOPS emergency alternate airport for trans-Pacific flights ...
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
CFB = Centralized Fault Book
DA = Departure Airport
DM = Time Stamp
DS = Destination Airport
REQPRG = Request Flight Progress Report
SCV = Surge Control Valve
TI2 = Terminal Information Request
TPE = Taipei
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

8417.0 kHz RMP Commonwealth of Independent States Navy Kaliningrad, Russian Federation

17958.0 kHz H10 HFDL Muan Air, South Korea, + aircraft B-30FT + B-6231 + B-8406 + 9V-SHF + flight CCA173
Code figures for WSSS runways braking action - see e.g. here
RSCD = Runway Surface Condition
RWYCC = Runway Condition Code
TI2 = Terminal Information Request

17958.0 kHz H10 HFDL Muan Air, South Korea, + aircraft B-30C2 + B-30C8 + B-30DC + B-325M + B-6185 + B-8602 + SU-GEF + VN-A888 + 9V-SJB + flight ANA249
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
CDP = Computer Diagnostics Program
DFD = Digital Flight Data
EDP = Engine Display Panel
TI2 = Terminal Information Request
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

13270.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft HZ-NS25 + HZ-NS46 + N102FE + N107FE + VT-ANS + 9V-SHD + 9V-SHL + 9V-SMR + flight CSC883
Later riding on the East Asian Jet Stream west of Shanghai
at 590+ knots = 1093+ kilometres per hour on FL 410 ...
DFD = Digital Flight Data
OCCS = Operations Control Centre Singapore
TI2 = Terminal Information Request
The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

13270.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft A6-AEJ + B-LIC + B-6998 + B-18917 + HL7746 + HZ-NS25 + VT-ANS + VT-IHZ + N504DN + 9V-SCA + 9V-SMJ + 9V-SMO + 9V-SMS + flight CCA946
AI = Arrival Information
DI = Departure Information
FMC = Flight Management Computer
FMS = Flight Management System
GC = Ground Connections
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FCA = Facilities Contact Advisory
FMH = Facilities Message Header = Flight Number
The Periodic Contract is a report sent every ... minutes
It specifies the reporting rate at which the avionics is required
to assemble and downlink the requested information to the ground system
The minimum reporting rate is usually not greater than every 14 minutes
but can vary to suit the need of the ground station
This procedure allows longitudinal and lateral separation of aircraft
in oceanic areas to be reduced to 30 nautical miles

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

4209.5 kHz XVN Nha Trang Radio, Viet Nam

12925.5 kHz Digital data station, Japan
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

12666.3 kHz FUM French Navy Papeete, Tahiti, Polynesia (French)
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

12412.5 kHz NOJ United States Coast Guard Kodiak, Alaska

4209.5 kHz XSQ Guangzhou Radio, China
What those megalomaniac Communist Chinese call "Zengmu Ansha Reef"
is in fact James Shoal, recognized by the Brits in the early 19th Century
and listed on the British Admiralty Chart in the 1870s (!).
Needless to say, located a mere 83 kilometres off Bintulu in Sarawak,
BETING SERUPAI belongs perfectly to the continental shelf and EEZ of MALAYSIA,
and has never repeat NEVER been a territory of Communist "China"
that is more than 1,800 kilometres repeat
MORE THAN ONE THOUSAND EIGHT HUNDRED KILOMETRES away!
Alamak!! Tak boleh tahan lah!!!
New radiofax service, schedule see here

8412.5 kHz XSQ Guangzhou Radio, China
CMA = China Meteorological Administration
MSA = Maritime Safety Administration
New radiofax service, schedule see here

5195.0 kHz DRA5 Kiel, Germany

16907.5 kHz JFA Funabashi Fisheries Radio, Japan
NOAA satellite settings for JRC / FURUNO fish finder equipment ...
The date reads 4 4 25 = 2022 April 25
since the Japanese calendar year in the Reiwa Era is used here
Formula: Reiwa year + 2018 = Gregorian year
Tentative schedule see here

518.0 kHz JNL Otaru Radio, Japan

518.0 kHz UFL Vladivostok Radio SE, Russian Federation

10027.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft B-30AV + B-325M + B-1883 + HL7617 + 9V-SGA + flight HZ5653
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCO ADS = Facilities Contact ADS-C
FCO ATC = Facilities Contact CPDLC
FMH = Facilities Message Header = Flight Number
FPO = Facilities Current Position
The Waypoint Change Event is triggered by a change
made to the Next, or the Next-plus-one waypoint
This change normally occurs due to normal waypoint sequencing by the FMS
The Next or Next-plus-one waypoint can be either an ATS waypoint or a pilot inserted waypoint

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

518.0 kHz Chukpy Radio, South Korea
JCS = Joint Chiefs of Staff

17958.0 kHz H10 HFDL Muan Air, South Korea, + aircraft B-320H + B-326K + B-326X + B-1663 + B-2299 + B-8493 + N845FD + flight CXA871
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

17958.0 kHz H10 HFDL Muan Air, South Korea, + aircraft B-30C2 + B-1665 + B-2093 + B-8800 + JA827A + JA831A + flight CSC893
ACAS = Airborne Collision Avoidance System
CFD = Centralized Fault Display
EET = Estimated Elapsed Time
WXR = Weather Request
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

12412.5 kHz NOJ United States Coast Guard Kodiak, Alaska

12412.5 kHz NOJ United States Coast Guard Kodiak, Alaska

12412.5 kHz NOJ United States Coast Guard Kodiak, Alaska

10093.0 kHz H09 HFDL Barrow Air, Alaska, + aircraft RA73708 + flight SU1506 + SU1769
AEVC = Avionics Equipment Ventilation Computer
CFB = Centralized Fault Book
CFDS = Centralized Fault Display System
CIDS = Cabin Intercommunication Data System
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
MDDU = Multipurpose Disk Drive Unit
OBRM = On Board Replaceable Module
Engine Cruise Report UUEE - USPP ...
= collection of data over a period of time
in which the aircraft met the appropriate stability criteria
If no stability is detected, then the report
ends with NO STABLE FRAME CONDITION
Aircraft in-flight performance parameters such as OIT = Oil Temperature are explained e.g. here
The yellow table below shows a typical parameters list ...

10093.0 kHz H09 HFDL Barrow Air, Alaska, + flight PAL127 + SU1768

518.0 kHz NOJ United States Coast Guard Kodiak, Alaska

518.0 kHz NMC United States Coast Guard San Francisco CA, United States of America
BNM = Broadcast Notice to Mariners
LA = Los Angeles
LB = Long Beach
SD = San Diego
SF = San Francisco

8942.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft B-LXB + B-8362 + RA73114 + RA73167 + RA73194 + RA73752 + 5Y-KYE + flight CCA617
CFB = Centralized Fault Book
CIDS = Cabin Intercommunication Data System
DFB = Digital Flight Book
ECU = Electronic Control Unit
EIU = Engine Interface Unit
FADEC = Full Authority Digital Engine Control
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
PES = Passenger Entertainment System
WN = Warning Number, followed by the Date-Time Group

8942.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft CN-RGF + RA73098 + RA73196 + RA73232 + RA73760 + VQ-BRV + 5Y-KYE + flight YL0100
Perfect OOOI ...
BSR = Bon Soir
CDB = Commandant Du Bord

11312.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft JA14KZ + VT-IFM + flight UAL91
TI2 = Terminal Information Request
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

518.0 kHz ICH Italian Coast Guard La Maddalena Island, Italy

518.0 kHz SVL Limnos Radio, Greece

11312.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft A6-BLH + B-8800 + JA874A + HL8286 + N843FD + RPC9934 + 9V-SCI + 9V-SGB + 9V-SGG + 9V-SHM + flight FDX17
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
CDP = Computer Diagnostics Program
DFD = Digital Flight Data
EDP = Engine Display Panel
FWS = Flight Warning System
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FCA = Facilities Contact Advisory
FMH = Facilities Message Header = Flight Number
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

11312.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft N26967 + PK-GNG + 9V-SHM + flight PR0437

8658.0 kHz JFX Kagoshima Fisheries Radio, Japan
Latest tuna market prices ...
The date reads 4 4 22 = 2022 April 22
since the Japanese calendar year in the Reiwa Era is used here
Formula: Reiwa year + 2018 = Gregorian year
Tentative schedule see here

13324.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft B-1168 + CC-BGL + EC-MAJ + JA876A + N452PA + XA-VRX + flight AAR203
CFD = Centralized Fault Display
ECS = Environmental Control System
OCC = Operations Control Centre
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FCA = Facilities Contact Advisory
FMH = Facilities Message Header = Flight Number
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

518.0 kHz LGT Tjoeme Radio, Norway

518.0 kHz JNB Naha Radio, Okinawa Island, Japan

17928.0 kHz H17 HFDL Telde Air, Canary Islands, + aircraft CS-TKQ + F-WZHM + N516DN + 5Y-KYD + 7T-VJB + flight UAE37V
ADIRU = Air Data Inertial Reference Unit
CCC = Core Compartment Cooling
CFB = Centralized Fault Book
ECU = Electronic Control Unit
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
WN = Warning Number, followed by the Date-Time Group
WXR = Weather Radar
UM169 is a critical procedure, designed to prevent pilots
from acting on any old CPDLC messages
that might have been delayed in the network
The most serious of such cases would be
the pilot executing a clearance that was no longer valid
Engine Cruise Report DABC - LFPG ...
= collection of data over a period of time
in which the aircraft met the appropriate stability criteria
If no stability is detected, then the report
ends with NO STABLE FRAME CONDITION
Aircraft in-flight performance parameters such as OIT = Oil Temperature are explained e.g. here
The yellow table below shows a typical parameters list ...
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

518.0 kHz NMG United States Coast Guard New Orleans LA, United States of America
BNM = Broadcast Notice to Mariners

518.0 kHz NMA United States Coast Guard Miami FL, United States of America
BNM = Broadcast Notice to Mariners

17916.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft HL7795 + JY-AYP + 9V-SME + flight SIA277
Increasing solar activity - and the ionosphere going crazy:
ATIS uplink for a OTHH - OJAI flight ... via Auckland!
TI2 = Terminal Information Request
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FMH = Facilities Message Header = Flight Number
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

518.0 kHz TAH Istanbul Radio, Turkey

518.0 kHz A9M Hamala Radio, Bahrain
BA = British Admiralty
MENAS = Middle East Navigation Aids Service
MEGULITE = Middle East Gulf Lighting Service
VTIS = Vessel Traffic Information Service
Warnings still in force - received 210410Z APR 2022

518.0 kHz SUZ Serapeum Radio, Egypt
BA = British Admiralty
GAPCO = Gulf Africa Petroleum Corporation

518.0 kHz HZH Jeddah Radio, Saudi Arabia
First time monitored, unfortunately blocked by other stations scheduled here ...

17919.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft HL7795 + N595FE + N859FD + N4026T + flight UAL252
Flight parameters KBFI - KLAX ...
DFB = Digital Flight Book
DT = Destination, followed by the runway number
FN = Flight Number
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCA = Facilities Contact Advisory
FMH = Facilities Message Header = Flight Number
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

518.0 kHz SVH Iraklion Radio, Greece

518.0 kHz IQM Mondolfo Radio, Italy

518.0 kHz 9HD Valetta Radio, Malta
NTM = Notice to Mariners

22448.8 kHz FUV French Navy Jibuti, Djibouti
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

518.0 kHz 9AS Split Radio, Croatia

17958.0 kHz H10 HFDL Muan Air, South Korea, + aircraft B-30C1 + B-8891 + G-DHLF + 9V-SGD + flight CES296 + PAL126
FF = Fuel Flow (for engines 1 + 2)

4346.0 kHz NMC United States Coast Guard San Francisco CA, United States of America

13351.0 kHz H05 HFDL Auckland Air, New Zealand, + flight QTR43U + SIA223

5583.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft CC-BGL + flight AIC302
12 hours across the Southern Ocean without an alternate airport ...
Note that all those famous flight tracking webpages such as Flightradar 24
have ZERO real-time data for the 10+ hours cruise sector of this flight;
they simply visualize some great-circle extrapolation ... while it's all here on HF -
updated every 15 minutes - if you know when and where to look!
Now you can easily calculate the fuel consumption:
191357 - 191227 = 90 Minutes
202231 - 194347 = 7884 kg (corresponding to the rounded 43500 - 35500 = 8 tons)
makes around 5 tons per hour up there at FL 360 - FL 380 ...
POSREP = POS, WP, ATO, FL, next+1 WP, ETO, next+2 WP,
ETO, temperature, wind, FOB or SOG, time stamp, date, HEX serial
CFD = Centralized Fault Display
CG = Center of Gravity
CI = Consistency Index
FEL = Fuel Estimation Left
FER = Fuel Estimation Right
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCO ADS = Facilities Contact ADS-C
FCO ATC = Facilities Contact CPDLC
FCP = Facilities Contact Response
FMH = Facilities Message Header = Flight Number
FPO = Facilities Current Position
The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

6559.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft B-8429 + B-18918 + JA807A + N420LA + N454PA + N852FD + 9H-PPE + flight FX0621
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
DFB = Digital Flight Book
DP = Differential Pressure
EGT = Exhaust Gas Temperature
FCNT = (DAR) Frame Counter
FF = Fuel Flow
ISFC = Indicated Specific Fuel Consumption
LPT = Low Pressure Turbine
OIP = Oil Pressure
OIQ = Oil Quantity
OIT = Oil Temperature
TLA = Thrust Lever Angle
The Periodic Contract is a report sent every ... minutes
It specifies the reporting rate at which the avionics is required
to assemble and downlink the requested information to the ground system
The minimum reporting rate is usually not greater than every 14 minutes
but can vary to suit the need of the ground station
This procedure allows longitudinal and lateral separation of aircraft
in oceanic areas to be reduced to 30 nautical miles

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

6661.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft C-GOIO + N504DN + N507DN + N542LA + N846FD + PR-TYK + flight VS073Q
Code figures for KIND runways braking action - see e.g. here
POSREP = POS, WP, ATO, FL, next+1 WP, ETO, next+2 WP,
ETO, temperature, wind, FOB or SOG, time stamp, date, HEX serial
Air and ground end systems include
(1) Datalink Application Service Element = CPDLC
(2) Aeronautical Telecommunication Network upper layers
(3) TP4 = Transport Protocol Class 4
DT = Destination, followed by the runway number
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

13276.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft B-1343 + C-GOIM + G-VLUV + SP-LRG + flight AC1290
Cruise parameters EPWA - KMIA ...
DFB = Digital Flight Book
DT = Destination, followed by the runway number
FN = Flight Number
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

The Waypoint Change Event is triggered by a change
made to the Next, or the Next-plus-one waypoint
This change normally occurs due to normal waypoint sequencing by the FMS
The Next or Next-plus-one waypoint can be either an ATS waypoint or a pilot inserted waypoint

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

8416.5 kHz UAT Moscow Radio, Russian Federation

13276.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft C-GOIM + G-VAHH + G-VNYC + N279AV + N501DN + N751AV + N921AK + YU-ARB + flight VIR91
FMC = Flight Management Computer
FMS = Flight Management System
REQPWI = Predicted Wind Request for FL 390 370 350 330
TGT = Turbine Gas Temperature
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCO ADS = Facilities Contact ADS-C
FCO ATC = Facilities Contact CPDLC
FCP = Facilities Contact Response
FMH = Facilities Message Header = Flight Number
FPO = Facilities Current Position
Engine Cruise Report LYBE - KJFK ...
= collection of data over a period of time
in which the aircraft met the appropriate stability criteria
If no stability is detected, then the report
ends with NO STABLE FRAME CONDITION
Aircraft in-flight performance parameters such as OIT = Oil Temperature are explained e.g. here
The yellow table below shows a typical parameters list ...
The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

13324.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft B-1242 + N112FE + N921AK + XA-VSG + 9V-SCN + flight FDX528
Increasing solar activity - and the ionosphere going crazy:
ETOPS data uplink for a 15 hours polar flight CYYZ - ZGGG ... via Hawaii!
DFB = Digital Flight Book
EEP = ETOPS Entry Point
ETP = Equitime Point
GOCC = Global Operations Control Center
REQPRG = Request Flight Progress Report
SOC = Service Operations Centre

518.0 kHz 9MG Georgetown Radio, Pinang Island, Malaysia

518.0 kHz XVT Da Nang Radio, Viet Nam

518.0 kHz NMW United States Coast Guard Astoria OR, United States of America
BNM = Broadcast Notice to Mariners
LA = Los Angeles
LB = Long Beach
SD = San Diego
SF = San Francisco

8416.5 kHz NMF United States Coast Guard Boston MA, United States of America

8416.5 kHz LGS Svalbard Radio, Spitsbergen, Norway
002570000 is the station's MMSI (Maritime Mobile Service Identity) code -
see page 95 ff. in our Radio Data Code Manual

21928.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-320U + B-326U + B-1018 + B-8359 + B-8685 + EC-NHM + JA823P + VN-A621 + VN-A623 + 9V-SGD + flight CSC888
AFS = Auto Flight System
CFB = Centralized Fault Book
CFDS = Centralized Fault Display System
DA = Departure Airport
DM = Time Stamp
DS = Destination Airport
ECAM = Electronic Centralized Aircraft Monitoring
FR = Fault Report, followed by the Date-Time Group
PB = Parking Bay
RA = Radio Altimeter
TPIS = Tire Pressure Indicator System
WN = Warning Number, followed by the Date-Time Group
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FMH = Facilities Message Header = Flight Number
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

21928.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-18903 + F-HRBI + JA880A + N510DN + 9V-SCD + flight CPA134
Code figures for WSSS runways braking action - see e.g. here
IRF = Incident Report Form
MCC = Maintenance Control Centre
MTC = Maintenance Technical Center
PB = Parking Bay
RSCD = Runway Surface Condition
RWYCC = Runway Condition Code
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

518.0 kHz CBV Valparaiso Radio, Chile
ODAS = Ocean Data Acquisition Systems

518.0 kHz L2T Argentinian Coast Guard Mar del Plata, Argentina

518.0 kHz L3B Argentinian Coast Guard Comodoro Rivadavia, Argentina
The missing aircraft PP-ZRT is a Van's RV-10 with three POB ...

21928.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-2083 + JA823P + PK-GNQ + VN-A619 + VN-A889 + 9V-SHA + flight CES273
CDP = Computer Diagnostics Program
DFB = Digital Flight Book
DFD = Digital Flight Data
EDP = Engine Display Panel
FWS = Flight Warning System
OCC = Operations Control Centre
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FMH = Facilities Message Header = Flight Number
The Waypoint Change Event is triggered by a change
made to the Next, or the Next-plus-one waypoint
This change normally occurs due to normal waypoint sequencing by the FMS
The Next or Next-plus-one waypoint can be either an ATS waypoint or a pilot inserted waypoint

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

518.0 kHz UUI Odessa Radio, Ukraine
Warnings still in force - received 170230Z APR 2022

518.0 kHz EAV Valencia Radio, Spain

518.0 kHz UDN Novorossiysk Radio, Russian Federation

518.0 kHz 4XO Haifa Radio, Israel
BA = British Admiralty
NTM = Notice to Mariners

518.0 kHz 5BA Nicosia Radio, Cyprus
JRCC = Joint Rescue Coordination Centre

5100.0 kHz VMC Charleville Meteo QLD, Australia

10544.8 kHz Digital data station

6559.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft B-5926 + CC-BDB + G-VGBR + N897FD + flight AS0794
Cruise parameters SCEL - KMIA ...
AFS = Auto Flight System
CFB = Centralized Fault Book
DFB = Digital Flight Book
DMC = Display Management Computer
DT = Destination, followed by the runway number
FLR = Failure
FMGEC = Flight Management and Guidance and Envelope Computer
FN = Flight Number
FR = Fault Report, followed by the Date-Time Group
IR = Inertial Reference
WN = Warning Number, followed by the Date-Time Group
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

6559.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft N291BT + N588FE + N597AS + N27964 + flight PAL127
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

6559.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft CC-BDB + HL8033 + N291BT + N610FE + XA-VRX + XA-VSG + 9V-SMV + flight SIA32
BCV = Brake Control Valve
BLDV = Bleed Valve
CAI = Cowl Anti-Ice
DAR = Data Access Recorder
DFB = Digital Flight Book
ECS = Environmental Control System
EGT = Exhaust Gas Temperature
EMR = Electromagnetic Reliability (of Avionics)
ESCV = Eleventh Stage Cooling Valve
FCNT = (DAR) Frame Counter
FF = Fuel Flow
FMC = Flight Management Computer
FMV = Fuel Metering Valve
HPTCC = High Pressure Turbine Clearance Control
HPV = High Pressure Valve
IRS = Inertial Reference System
ISFC = Indicated Specific Fuel Consumption
ISOV = Isolation Valve
IVV = Inertial Vertical Speed
LPTCC = Low Pressure Turbine Clearance Control
MX = Maintenance
OIP = Oil Pressure
OIQ = Oil Quantity
OIT = Oil Temperature
PS3 = Compressor Discharge Static Air Pressure
RESPWI/AC = FMS downlink acceptance and insertion of PWI = Predicted Wind uplink data
TLA = Thrust Lever Angle
VBV = Variable Bleed Valve
VSV = Vacuum Switching Valve
WAI = Wing Anti Ice
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

518.0 kHz VAE Canadian Coast Guard Tofino BC, Canada

518.0 kHz NMQ United States Coast Guard Long Beach CA, United States of America
BNM = Broadcast Notice to Mariners
UMIB = Urgent Marine Information Broadcast
LA = Los Angeles
LB = Long Beach
SD = San Diego
SF = San Francisco

3585.0 kHz HLL8 Soul Meteo, South Korea
Typhoon Malakas ...
STS = Severe Tropical Storm

3585.0 kHz HLL8 Soul Meteo, South Korea
DFS = Digital Forecast System

8416.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina
The missing aircraft PP-ZRT is a Van's RV-10 with three POB ...

8416.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina

21949.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft B-8438 + B-8667 + B-18915 + HL7623 + RPC9934 + 9V-SCF + 9V-SGG + 9V-SHT + flight SIA22
CFD = Centralized Fault Display
FF = Fuel Flow (for engines 1 + 2)
OCCS = Operations Control Centre Singapore
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

16959.8 kHz FUJ French Navy Noumea, New Caledonia
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

8942.0 kHz H07 HFDL Shannon Air, Ireland, + flight CES711 + MS2650

8486.3 kHz CTA Portuguese Navy Lisbon, Portugal

5655.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft B-30EA + B-323Y + B-1539 + F-WXAK + VN-A894 + 9V-SHA + 9V-SKR + 9V-SMD + flight CXA870
F-WXAK = delivery flight EDHI - VIDP of a new Airbus A320-214 for Vanilla Air ...
CFB = Centralized Fault Book
WN = Warning Number, followed by the Date-Time Group
The Periodic Contract is a report sent every ... minutes
It specifies the reporting rate at which the avionics is required
to assemble and downlink the requested information to the ground system
The minimum reporting rate is usually not greater than every 14 minutes
but can vary to suit the need of the ground station
This procedure allows longitudinal and lateral separation of aircraft
in oceanic areas to be reduced to 30 nautical miles

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

4209.5 kHz XSG Shanghai Radio, China

4215.0 kHz XSG Shanghai Radio, China
Characters in brackets denote the Latin alphabet
The four-figure groups without brackets
are Chinese ideographs -
see page 48 ff. in our Radio Data Code Manual

518.0 kHz HSA Bangkok Radio, Thailand
BKK = Bangkok
Warnings already in force - received 141250Z APR 2022
005671000 is the station's MMSI (Maritime Mobile Service Identity) code -
see page 95 ff. in our Radio Data Code Manual

13312.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-30CU + PK-GFU + 9V-SHK + 9V-SMT + 9V-SMZ + flight CSZ967
Perfect OOOI ...
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

13312.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft HL7795 + JA201P + 9V-SMF + flight AAR212
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FCA = Facilities Contact Advisory
FMH = Facilities Message Header = Flight Number
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

490.0 kHz EAL Las Palmas Radio, Canary Islands

490.0 kHz SVK Kerkyra Radio, Greece

490.0 kHz IGS Piombino Radio, Italy

490.0 kHz Hamburg Meteo, Germany
VTG = Verkehrstrennungsgebiet

8977.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft CN-RGB + CN-RGM + CN-RGT + CN-RGX + N110FE + N856FD + RA73227 + flight ETH873
CCO = Operations Control Centre
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

490.0 kHz OST Oostende Radio, Belgium

490.0 kHz EJM Irish Coast Guard Malin Head, Ireland
MRSC = Maritime Rescue Sub Centre

8927.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-20AA + HL7746 + N632UP + VN-A888 + 9V-SMD + flight UAE431
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
DFB = Digital Flight Book
DFD = Digital Flight Data
EDP = Engine Display Panel
FWS = Flight Warning System
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FCA = Facilities Contact Advisory
FCO ADS = Facilities Contact ADS-C
FCO ATC = Facilities Contact CPDLC
FMH = Facilities Message Header = Flight Number
FPO = Facilities Current Position
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

4211.7 (not 4209.5!) kHz L2C Argentinian Coast Guard Buenos Aires, Argentina
SHN = Servicio de Hidrografia Naval

4211.7 (not 4209.5!) kHz L2C Argentinian Coast Guard Buenos Aires, Argentina
RDP = Rio de la Plata

17916.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft EI-KBL + EI-KDE + N75853 + RA73161 + VP-BAE + VP-BEA + VP-BPP + VP-BTI + 9V-SMT + flight CAL055
Increasing solar activity - and the ionosphere going crazy:
data for Russian domestic flights ... via Auckland!
CFB = Centralized Fault Book
WN = Warning Number, followed by the Date-Time Group
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCA = Facilities Contact Advisory
FMH = Facilities Message Header = Flight Number
The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

518.0 kHz XVS Ho Chi Minh City Radio, Viet Nam
Warnings still in force - received 111950Z APR 2022

518.0 kHz VRX Hong Kong Radio, China
Nice to see VRX uses intentionally
the internationally recognized British names
for those island groups in the South China Sea
and not those absurd fantasy names
applied by aggressive Communist China
that is going to grab every shoal all the way down
to the shores of Melayu dan Singapura -
more than 1,800 kilometres away from Hainan!
Alamak!! Tak boleh tahan lah!!!

21949.0 kHz H08 HFDL Johannesburg Air, South Africa (Republic of), + aircraft 5A-ONA + 5A-ONJ + flight PR0684 + WB0020 + 4Y0093
AFS = Auto Flight System
ATSU = Air Traffic Service Unit
CFB = Centralized Fault Book
CFDS = Centralized Fault Display System
CIDS = Cabin Intercommunication Data System
DA = Departure Airport
DM = Time Stamp
DMU = Data Management Unit
DS = Destination Airport
ECAM = Electronic Centralized Aircraft Monitoring
ECU = Electronic Control Unit
EIU = Engine Interface Unit
FADEC = Full Authority Digital Engine Control
FDIU =Flight Data Interface Unit
FLR = Failure
FWC = Flight Warning Computer
FR = Fault Report, followed by the Date-Time Group
PRAM = Pre-Recorded Announcements and Music
QAR = Quick Access Recording
SDCU = Smoke Detect Control Unit
SDF = Smoke Detection Function
WN = Warning Number, followed by the Date-Time Group

21949.0 kHz H08 HFDL Johannesburg Air, South Africa (Republic of), + flight HY9619 + ME2442

21949.0 kHz H08 HFDL Johannesburg Air, South Africa (Republic of), + aircraft D-AXGB + RA73728 + RA73835 + VP-BAZ + 9XR-WQ + flight QR0833
POSREP = POS, WP, ATO, FL, next+1 WP, ETO, next+2 WP,
ETO, temperature, wind, FOB or SOG, time stamp, date, HEX serial
AFS = Auto Flight System
ATSU = Air Traffic Service Unit
CFDS = Centralized Fault Display System
ECAM = Electronic Centralized Aircraft Monitoring
EIS = Electronic Instrument System
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
MCDU = Multi-Function Control Display Unit
TCAS = Traffic Alert and Collision Avoidance System
WN = Warning Number, followed by the Date-Time Group

18696.0 kHz Digital data station

21955.0 kHz H17 HFDL Telde Air, Canary Islands, + aircraft C-GHQQ + SU-GDC + SU-GDZ + SU-GEJ + 5A-LAP + flight MAS3
Perfect OOOI ...

8416.5 kHz NMC United States Coast Guard San Francisco CA, United States of America

10081.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft RA73168 + RA73226 + RA73227 + flight UAL78
The INRANGE message announces the aircraft being within VHF range of the destination airport
RA73168 is yet another "re-registered" (read: seized) Airbus A320-200 aircraft
leased from Avia AM Financial Leasing China
and originally registered as VP-BIX in Bermuda ...
Engine Cruise Report UUEE - ULLI ...
= collection of data over a period of time
in which the aircraft met the appropriate stability criteria
If no stability is detected, then the report
ends with NO STABLE FRAME CONDITION
Aircraft in-flight performance parameters such as OIT = Oil Temperature are explained e.g. here
The yellow table below shows a typical parameters list ...
Surprise, surprise: watch the empty field after /CC where they "forgot" to enter the "new" callsign instead of VP-BIX ;-)))

AFS = Auto Flight System
CFB = Centralized Fault Book
CIDS = Cabin Intercommunication Data System
DA = Departure Airport
DM = Time Stamp
DS = Destination Airport
ERT = Estimated Ramp Time
FMGC = Flight Management and Guidance Computer
FR = Fault Report, followed by the Date-Time Group
IR = Inertial Reference

10081.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft CN-ROT + RA73100 + RA73227 + flight V706ER
DT = Destination, followed by the runway number
FN = Flight Number
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

16854.0 kHz XSQ Guangzhou Radio, China
NOTICE gives a FAX schedule change as of 23 MAR ...
Strange frequencies ...
Characters in brackets denote the Latin alphabet
The four-figure groups without brackets
are Chinese ideographs -
see page 48 ff. in our Radio Data Code Manual

8957.0 kHz H13 HFDL Santa Cruz Air, Bolivia, + aircraft CC-BDB + N860FD + flight AVA083
The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

8957.0 kHz H13 HFDL Santa Cruz Air, Bolivia, + aircraft CC-BDB + N542LA + N860FD + flight AVA184
Cruise data KMIA - SEQM and SCEL - KMIA ...
DFB = Digital Flight Book
EEC = Electronic Engine Controller
FATS = Fan Air Temperature Sensor
FAV = Fan Air Valve
TCV = Thrust Control Valve
TI2 = Terminal Information Request
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCO ADS = Facilities Contact ADS-C
FCO ATC = Facilities Contact CPDLC
FMH = Facilities Message Header = Flight Number
FPO = Facilities Current Position
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

8658.0 kHz JFX Kagoshima Fisheries Radio, Japan
Navigational warnings for NAVAREAs 10 and 11
The date reads 4 4 9 = 2022 April 9
since the Japanese calendar year in the Reiwa Era is used here
Formula: Reiwa year + 2018 = Gregorian year
Tentative schedule see here

12579.0 kHz UAT Moscow Radio, Russian Federation
Warnings still in force - received 090800Z APR 2022

4209.5 kHz TAH Istanbul Radio, Turkey

8977.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft A6-EUF + CN-RGM + CS-TKQ + JY-AYS + RA73093 + RA73097 + RA73173 + VP-BTJ + VP-BTO + flight VIR300
REQFPN = FPL report request uplink
REQPWI = Predicted Wind Request for FL 350
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

8977.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft CN-RGX + OH-LWM + RA73111 + RA73186 + RA73665 + RA73728 + RA73831 + VQ-BSG + flight SIA326
CFB = Centralized Fault Book
CIDS = Cabin Intercommunication Data System
ECAM = Electronic Centralized Aircraft Monitoring
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
PHC = Probe Heat Computer
SDAC = System Data Acquisition Computer
The Periodic Contract is a report sent every ... minutes
It specifies the reporting rate at which the avionics is required
to assemble and downlink the requested information to the ground system
The minimum reporting rate is usually not greater than every 14 minutes
but can vary to suit the need of the ground station
This procedure allows longitudinal and lateral separation of aircraft
in oceanic areas to be reduced to 30 nautical miles

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

12668.3 kHz FUG French Navy Saissac, France

12386.0 kHz Digital data station, Japan
32 channels + continuous pilot tone on the left ...

5100.0 kHz VMC Charleville Meteo QLD, Australia

518.0 kHz VBR Canadian Coast Guard Ferndale ONT, Canada
The ice concentration is given in tenths
CONS = Consolidated
MEDI = Medium Lake Ice
OW = Open Water
TKI = Thick Lake Ice

6559.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft B-1429 + B-2045 + D-AALP + N260UP + N582UP + N918AK + flight QFA755
AA = Arrival Airport
BI = Basic Index
BW = Basic Weight
CFD = Centralized Fault Display
DA = Departure Airport
DOI = Dry Operating Index
DOW = Dry Operating Weight
DT = Destination, followed by the runway number
ECS = Environmental Control System
FMS = Flight Management System
LILAW = Loaded Index at LAW
LITOW = Loaded Index at TOW
LIZFW = Loaded Index at ZFW
LMC = Last Minute Change
MAC... = Mean Aerodynamic Chord ...
NOTOC = Notice To Captain (whenever dangerous goods or other special load items are to be carried)
REQFPN = FPL report request uplink
REQPWI = Predicted Wind Request for FL 350
RESREQ/AK = FMS downlink acknowledgement of a REQFPN uplink
TS = Time Stamp
ZFW + TOF = TOW - TRIP = LDW
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FMH = Facilities Message Header = Flight Number
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

8416.5 kHz NMO United States Coast Guard Honolulu, Hawaii

17985.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft SU-GDA + SU-GEB + TC-MCZ + 7T-VJB + 9H-TBN + flight SAS58L
CFB = Centralized Fault Book
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
PSCU = Proximity Switch Control Unit
PSH = Pushback Time
WN = Warning Number, followed by the Date-Time Group
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

4209.5 kHz XSG Shanghai Radio, China

13276.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft C-FIVX + G-VNYC + N507DN + flight AC0048 + AC0871
RESPWI/AK = FMS downlink acknowledgement of PWI = Predicted Wind uplink data
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

13312.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-30A7 + B-18912 + HL7741 + HL7795 + PK-SJD + 9V-SHU + flight FDX17
DT = Destination, followed by the runway number
FN = Flight Number
TS = Time Stamp
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

The Periodic Contract is a report sent every ... minutes
It specifies the reporting rate at which the avionics is required
to assemble and downlink the requested information to the ground system
The minimum reporting rate is usually not greater than every 14 minutes
but can vary to suit the need of the ground station
This procedure allows longitudinal and lateral separation of aircraft
in oceanic areas to be reduced to 30 nautical miles

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

518.0 kHz JNX Kushiro Radio, Japan

518.0 kHz JGC Yokohama Radio, Japan

8948.0 kHz H17 HFDL Telde Air, Canary Islands, + aircraft G-NEOT + N886FD + 9V-SMK + flight ETH290 ...
HECA - EGLL flight data ...
TI2 = Terminal Information Request

518.0 kHz PBK Netherlands Coast Guard Ijmuiden, Netherlands
TSS = Traffic Separation Scheme

518.0 kHz GPK Portpatrick Radio, United Kingdom

8942.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft F-HTYJ + G-NEOT + N892FD + flight UAE23E + 8U0455
UM169 is a critical procedure, designed to prevent pilots
from acting on any old CPDLC messages
that might have been delayed in the network
The most serious of such cases would be
the pilot executing a clearance that was no longer valid
GOCC = Global Operations Control Center

518.0 kHz ESA Tallinn Radio, Estonia
PET = Saint Petersburg

8942.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft CN-ROT + HZ-NS23 + N896FD + RA73232 + UK32011 + VP-BRG + VQ-BID + VQ-BIW + 5Y-KID + flight SU1325
RA73232 is yet another "re-registered" (read: seized) aircraft originally registered as VQ-BAW in Bermuda ...
ATSU = Air Traffic Service Unit
BSR = Bon Soir
CDB = Commandant Du Bord
CFB = Centralized Fault Book
CFDS = Centralized Fault Display System
DA = Departure Airport
DCDU = Datalink and Display Control Unit
DM = Time Stamp
DMU = Data Management Unit
DS = Destination Airport
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
MDDU = Multipurpose Disk Drive Unit
REQPWI = Predicted Wind Request for FL 350
TS = Time Stamp
WN = Warning Number, followed by the Date-Time Group

8942.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft VP-BFH + VP-BNT + VP-BTO + VQ-BHL + VQ-BMV + 9H-HUB + flight QTR25A
DT = Destination, followed by the runway number
FN = Flight Number
REQFPN = FPL report request uplink
TS = Time Stamp
Non-standard Technical Book reports UUEE - UWOO and UWUU - UUEE ...
Engine Cruise Report ENGM - LEAL ...
= collection of data over a period of time
in which the aircraft met the appropriate stability criteria
If no stability is detected, then the report
ends with NO STABLE FRAME CONDITION
Aircraft in-flight performance parameters such as OIT = Oil Temperature are explained e.g. here
The yellow table below shows a typical parameters list ...
Note that in this screenshot, however, the messages are not table-formatted as in the example below;
anyway, standard row identifiers such as CC C0 C1 CE ... can be easily identified after the slash ...
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

7795.0 kHz JMH2 Tokyo Meteo, Japan

7795.0 kHz JMH2 Tokyo Meteo, Japan

8424.0 kHz SVO Olympia Radio, Athens, Greece

5655.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft 9M-MAE + 9V-SHU + 9V-SKV + flight CAL073 + ETH600
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

4209.5 kHz XSV Tianjin Radio, China
Warnings still in force - received 031900Z APR 2022

5655.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft F-HRBJ + VN-A222 + 9V-SKE + 9V-SKV + 9V-SKW + flight SIA899
Cruise parameters VVTS - VVNB ...
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FMH = Facilities Message Header = Flight Number
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

5807.0 kHz ZKLF Auckland Meteo, New Zealand

5508.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft B-20CJ + N388HA + OH-LWS + flight AS0821 + CES705
Riding on the North Pacific Jet Stream east of Japan
at 569+ knots = 1054+ kilometres per hour ...
CG = Center of Gravity
EFP = Efficient Flight Profile
E/O = Engine Inoperative
EPR = Engine Pressure Ratio
FRA = Flap Retraction Altitude
MRTW = Maximum Regular Take-Off Weight
The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

6652.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-8359 + HL7746 + JA11KZ + VN-A886 + VN-A896 + RA73134 + 9V-SHF + flight KAL901
RA73134 is yet another "re-registered" (read: seized) Boeing B777-300ER aircraft
leased from JSC-VEB = Joint-Stock Company - Vnesh Econom Bank
and originally registered as VQ-BQG in Bermuda ...
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
CFD = Centralized Fault Display
FCV = Flow Control Valve
IMI = Imbedded Message Identifier
PCK = PACK = Pressurization Air Conditioning Kit
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

17919.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-30DZ + B-18912 + HL7795 + JA818A + RPC9933 + RPC9935 + 9V-SHN + flight CSN306
Air and ground end systems include
(1) Datalink Application Service Element = CPDLC
(2) Aeronautical Telecommunication Network upper layers
(3) TP4 = Transport Protocol Class 4
BI = Basic Index
DOI = Dry Operating Index
LITOW = Loaded Index at TOW
LIZFW = Loaded Index at ZFW
MAC... = Mean Aerodynamic Chord ...
REQPWI = Predicted Wind Request for FL 370 350 330 310
SI = Supplementary Information
ZFW + TOF = TOW - TIF = LDW
The Periodic Contract is a report sent every ... minutes
It specifies the reporting rate at which the avionics is required
to assemble and downlink the requested information to the ground system
The minimum reporting rate is usually not greater than every 14 minutes
but can vary to suit the need of the ground station
This procedure allows longitudinal and lateral separation of aircraft
in oceanic areas to be reduced to 30 nautical miles

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

17916.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft B-LNV + HL7746 + HL7795 + JA10VA + JA816A + 9V-SMZ + flight CAL055
DT = Destination, followed by the runway number
FN = Flight Number
TS = Time Stamp
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

The Periodic Contract is a report sent every ... minutes
It specifies the reporting rate at which the avionics is required
to assemble and downlink the requested information to the ground system
The minimum reporting rate is usually not greater than every 14 minutes
but can vary to suit the need of the ground station
This procedure allows longitudinal and lateral separation of aircraft
in oceanic areas to be reduced to 30 nautical miles each

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

8570.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil
Message is slightly corrupted ...

518.0 kHz Vakalpudi Radio, India
CWC = Cyclone Warning Centre
IMD = India Meteorological Department

6661.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft G-VDIA + N538LA + N873FD + N588NW + flight DAL295
REQPRG = Request Flight Progress Report
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCA = Facilities Contact Advisory
FMH = Facilities Message Header = Flight Number
The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found hereodes of ACARS Message Labels can be found here

8977.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft EC-NOE + ET-AWM + N113FE + N538LA + SU-GDZ + SU-GEI + VP-BWI + flight UPS237
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
DFD = Digital Flight Data
DT = Destination, followed by the runway number
FN = Flight Number
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FMH = Facilities Message Header = Flight Number
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

The Waypoint Change Event is triggered by a change
made to the Next, or the Next-plus-one waypoint
This change normally occurs due to normal waypoint sequencing by the FMS
The Next or Next-plus-one waypoint can be either an ATS waypoint or a pilot inserted waypoint

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

11312.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft B-308E + HZ-AS61 + JA11KZ + JA219A + JA817A + N780AN + 9V-SCC + flight CCA251
BI = Basic Index
BW = Basic Weight
DFB = Digital Flight Book
DFD = Digital Flight Data
DLI = Dead Load Index
DOI = Dry Operating Index
LILAW = Loaded Index at LAW
LITOW = Loaded Index at TOW
LIZFW = Loaded Index at ZFW
MAC... = Mean Aerodynamic Chord ...
NOTOC = Notice To Captain (whenever dangerous goods or other special load items are to be carried)
TOB = Total On Board
ZFW + TOF = TOW - TIF = LDW
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FCA = Facilities Contact Advisory
FMH = Facilities Message Header = Flight Number
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

16971.0 kHz JJC Kyodo Tsushin Tokyo, Japan

490.0 kHz GCC Cullercoats Radio, United Kingdom

10081.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft CN-RGB + EI-KBA + JA877A + VP-BPT + VP-BQM + VP-BRG + flight SU1140
CDB = Commandant Du Bord
LMC = Last Minute Change
W/B = Weight / Balance

13351.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft B-1297 + N878FD + RA73213 + RA73680 + VP-BCE + flight HY0277
RA73213 is yet another "re-registered" (read: seized) aircraft leased from ICBC
and originally registered as VQ-BSE in Bermuda ...
6661/8879 are HF frequencies ...
ATSU = Air Traffic Service Unit
CFB = Centralized Fault Book
DA = Departure Airport
DCDU = Datalink and Display Control Unit
DM = Time Stamp
DS = Destination Airport
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
Engine Cruise Report UHMM - UHHH ...
= collection of data over a period of time
in which the aircraft met the appropriate stability criteria
If no stability is detected, then the report
ends with NO STABLE FRAME CONDITION
Aircraft in-flight performance parameters such as OIT = Oil Temperature are explained e.g. here
The yellow table below shows a typical parameters list ...
Note that in this screenshot, however, the messages are not table-formatted as in the example below;
anyway, standard row identifiers such as CC C0 C1 CE ... can be easily identified after the slash ...
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

13351.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft B-2045 + EI-KGE + P4-KDD + VP-BCE + VP-BLO + VP-BRG + flight FDX600
Increasing solar activity - and the ionosphere going crazy:
downlinks from UUEE - USTR and UUEE - URMT flights ... via Auckland!
UNAA - UUEE flight parameters ...
ATSU = Air Traffic Service Unit
CFB = Centralized Fault Book
CFDS = Centralized Fault Display System
DFB = Digital Flight Book
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
REQPWI = Predicted Wind Request for UAAA - UAII on FL 370 350 330
RESPWI/AC = FMS downlink acceptance and insertion of PWI = Predicted Wind uplink data
TI2 = Terminal Information Request

4209.5 kHz XVN Nha Trang Radio, Viet Nam

17615.0 RCV Commonwealth of Independent States Navy Sevastopol', Ukraine

13276.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft G-TTNJ + N582FE + N642FE + ZK-NZK + flight UAL881
Amadeus' ALTEA is a flight management system software
BI = Basic Index
BW = Basic Weight
EMR = Electromagnetic Reliability (of Avionics)
MAC... = Mean Aerodynamic Chord ...
PAPEE read PAPI
SI = Supplementary Information
TIF = Trip Fuel

16953.3 kHz 6WW French Navy Dakar, Senegal

6589.0 kHz H11 HFDL Panama City Air, Panama, + flight FDX986 + UAL844

15025.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft A6-EUC + A6-EVD + CN-RGJ + flight AT8880
Fault Report LIMC - OMDB in XML format ...
CFB = Centralized Fault Book
CMS = Central Maintenance System
LIDO = Lufthansa Integrated Dispatch Operation =
FMS software used by 180+ airlines worldwide
GLS = GBAS (Ground-Based Augmentation System) Landing System
MMR = Multi-Mode Receiver
OANC = Onboard Airport Navigation Computer
OANS = Onboard Airport Navigation System
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

15025.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft A6-EUC + P4-KGF + RA73798 + UK32013 + flight RJA167
RA73798 is yet another "re-registered" (read: seized) aircraft, operated by Ural Airlines ...
CFB = Centralized Fault Book
CIDS = Cabin Intercommunication Data System
DA = Departure Airport
DM = Time Stamp
DMC = Display Management Computer
DS = Destination Airport
DT = Destination, followed by the runway number
EEC = Electronic Engine Controller
EFCS = Electronic Flight Control System
EIS = Electronic Instrument System
EIU = Engine Interface Unit
FADEC = Full Authority Digital Engine Control
FLR = Failure
FN = Flight Number
FR = Fault Report, followed by the Date-Time Group
IR = Inertial Reference
MMR = Multi-Mode Receiver
WN = Warning Number, followed by the Date-Time Group
The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

518.0 kHz PKX Jakarta Radio, Indonesia

518.0 kHz VOK Canadian Coast Guard Cartwright NFLD, Canada

518.0 kHz 9VG Singapore Radio, Singapore
SPOCC = Singapore Port Operations Control Centre

5508.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft A6-ENL + B-20AA + F-HRBF + F-HTYD + HL7793 + N529FE + N26967 + flight CCA601
FOM = Figure of Merit
MIAM = Media Independent Aircraft Message
PDU = Pilot Display Unit
REQPRG = Request Flight Progress Report
TOCG = Take Off Centre of Gravity
ZFCG = Zero Fuel Centre of Gravity
ZFW 407.7 + TOF 128.9 - TX 1.6 = TOW 534.9
The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

8412.5 kHz XSQ Guangzhou Radio, China
CMA = China Meteorological Administration
New radiofax service, schedule see here

8412.5 kHz XSQ Guangzhou Radio, China
CMA = China Meteorological Administration
New radiofax service, schedule see here

11318.0 kHz H13 HFDL Santa Cruz Air, Bolivia, + aircraft PR-TYS + PR-TYV + flight AC0090
ACID = Aircraft Identifier
DFB = Digital Flight Book

XSQ Guangzhou Radio, China
Three new frequencies monitored 250338Z MAR 2022
Click to enlarge!
New radiofax service, schedule see here

12629.3 kHz XSQ Guangzhou Radio, China
CMA = China Meteorological Administration
New radiofax service, schedule see here

8582.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

8582.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil
SHP/SYNOP decoding - see page 299 ff. in our Radio Data Code Manual

8582.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

21955.0 kHz H17 HFDL Telde Air, Canary Islands, + aircraft CC-BGA + PR-TYK + PS-GPE + ZS-SXF + 5Y-KYD + flight UAE3TC
AMDAR decoding - see page 271 ff. in our Radio Data Code Manual
FPN = Flight Plan

21955.0 kHz H17 HFDL Telde Air, Canary Islands, + aircraft SU-GEA + SU-GEB + SU-GEI + flight KZR727
POSREP = POS, WP, ATO, FL, next+1 WP, ETO, next+2 WP,
ETO, temperature, wind, FOB or SOG, time stamp, date, HEX serial
The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

The Waypoint Change Event is triggered by a change
made to the Next, or the Next-plus-one waypoint
This change normally occurs due to normal waypoint sequencing by the FMS
The Next or Next-plus-one waypoint can be either an ATS waypoint or a pilot inserted waypoint

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

518.0 kHz United States Coast Guard Savannah GA, United States of America
BNM = Broadcast Notice to Mariners

518.0 kHz NMN United States Coast Guard Norfolk VA, United States of America
BNM = Broadcast Notice to Mariners

8424.0 kHz SVO Olympia Radio, Athens, Greece

16806.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina

518.0 kHz Kyaukphyu Radio, Myanmar

7433.5 kHz HLL8 Soul Meteo, South Korea

518.0 kHz 9WW21 Miri Radio, Sarawak, Malaysia

6661.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft CC-CWY + flight AS0305
Detailed L/R engine data ...
DAR = Data Access Recorder
DFB = Digital Flight Book
EGT = Exhaust Gas Temperature
FAV = Fan Air Valve
FCNT = (DAR) Frame Counter
FF = Fuel Flow
HPC = High-Pressure Compressor
HPSOV = High Pressure Shut-Off Valve
IDG = Integrated Drive Generator
IDGT = Integrated Drive Generator Temperature
ISFC = Indicated Specific Fuel Consumption
LPT = Low Pressure Turbine
OIP = Oil Pressure
OIQ = Oil Quantity
OIT = Oil Temperature
OLV = Oil Level
PACK = Pressurization Air Conditioning Kit
PRV = Pressure Regulation Valve
PS3 = Compressor Discharge Static Air Pressure
TCV = Thrust Control Valve
TLA = Thrust Lever Angle
VSV = Vacuum Switching Valve

6661.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft CC-CWY + flight FBU710
Cruise data SPJC - KLAX ...
DAR = Data Access Recorder
DFB = Digital Flight Book
FCNT = (DAR) Frame Counter
ISFC = Indicated Specific Fuel Consumption
RTO = Report Time Over
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCO ADS = Facilities Contact ADS-C
FCO ATC = Facilities Contact CPDLC
FMH = Facilities Message Header = Flight Number
FPO = Facilities Current Position
The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

21934.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft B-7667 + C-GOIM + C-GUBL + D-AXGF + N401AV + XA-VAM + XA-VSG + flight VOI231
POSREP = POS, WP, ATO, FL, next+1 WP, ETO, next+2 WP,
ETO, temperature, wind, FOB or SOG, time stamp, date, HEX serial
CFB = Centralized Fault Book
DT = Destination, followed by the runway number
FLR = Failure
FN = Flight Number
FR = Fault Report, followed by the Date-Time Group
VSC = Vacuum System Controller
WN = Warning Number, followed by the Date-Time Group
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

The Periodic Contract is a report sent every ... minutes
It specifies the reporting rate at which the avionics is required
to assemble and downlink the requested information to the ground system
The minimum reporting rate is usually not greater than every 14 minutes
but can vary to suit the need of the ground station
This procedure allows longitudinal and lateral separation of aircraft
in oceanic areas to be reduced to 30 nautical miles each

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

21937.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + flight TS0651 + UAL107

11086.5 kHz GYA Royal Navy London, United Kingdom

17016.8 kHz KPH San Francisco Radio CA, United States of America
MMP = Masters, Mates and Pilots
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

518.0 kHz Balasore Radio, India

518.0 kHz EAR La Coruna Radio, Spain

16907.5 kHz JFA Funabashi Fisheries Radio, Japan
The date reads 4 3 18 = 2022 March 18
since the Japanese calendar year in the Reiwa Era is used here
Formula: Reiwa year + 2018 = Gregorian year
Tentative schedule see here

518.0 kHz LFO Oerlandet Radio, Norway

518.0 kHz RFA Astrakhan Radio, Russian Federation
VTS = Vessel Traffic Service

8942.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft EI-KBL + G-VGBR + HZ-NS38 + N785AV + N5153A + SU-GEM + flight SU1969
The INRANGE message announces the aircraft being within VHF range of the destination airport
KBWI runway lengths ...
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCO ADS = Facilities Contact ADS-C
FCO ATC = Facilities Contact CPDLC
FMH = Facilities Message Header = Flight Number
FPO = Facilities Current Position
The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

The Waypoint Change Event is triggered by a change
made to the Next, or the Next-plus-one waypoint
This change normally occurs due to normal waypoint sequencing by the FMS
The Next or Next-plus-one waypoint can be either an ATS waypoint or a pilot inserted waypoint

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

518.0 kHz JNR Moji Radio, Japan

16907.5 kHz JFA Funabashi Fisheries Radio, Japan
Maritime Safety Information ...
The date reads 4 3 16 = 2022 March 16
since the Japanese calendar year in the Reiwa Era is used here
Formula: Reiwa year + 2018 = Gregorian year
Tentative schedule see here

16907.5 kHz JFA Funabashi Fisheries Radio, Japan
Misaki frozen tuna market prices not yet available ...
The date reads 4 3 16 = 2022 March 16
since the Japanese calendar year in the Reiwa Era is used here
Formula: Reiwa year + 2018 = Gregorian year
Tentative schedule see here

518.0 kHz LGQ Rogaland Radio, Norway

518.0 kHz GNI Niton Radio, United Kingdom
FOST = Flag Officer Sea Training
GUNFACTS = Practice firing intentions by military units
SUBFACTS = Planned or known submarine activity

3585.0 kHz HLL8 Soul Meteo, South Korea
GK2A = GEO KOMP Sat 2A = Geostationary Korea Multi Purpose Satellite

3585.0 kHz HLL8 Soul Meteo, South Korea

3585.0 kHz HLL8 Soul Meteo, South Korea
DFS = Digital Forecast System

11017.7 kHz Digital data station

17146.4 kHz NMG United States Coast Guard New Orleans LA, United States of America

16963.3 kHz FUF French Navy Fort de France, Martinique

518.0 kHz XSI Sanya Radio, China

13276.0 kHz H04 HFDL Riverhead Air NY, United States of America, + flight LAN504 + UAL194

10081.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft CS-TKQ + EI-EJL + OY-KAM + 5-LAP + 5A-WLA + flight HY9619
CFB = Centralized Fault Book
CFDS = Centralized Fault Display System
CIDS = Cabin Intercommunication Data System
DAR = Data Access Recorder
ECAM = Electronic Centralized Aircraft Monitoring
FCOM = Flight Crew Operation Manual
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
REQPWI = Predicted Wind Request for FL 360 370 380
SGH = Stockholm Ground Handling
STOOPSK = Stockholm Operations Scandinavian Airlines
TPIS = Tire Pressure Indicator System
WN = Warning Number, followed by the Date-Time Group
The Periodic Contract is a report sent every ... minutes
It specifies the reporting rate at which the avionics is required
to assemble and downlink the requested information to the ground system
The minimum reporting rate is usually not greater than every 14 minutes
but can vary to suit the need of the ground station
This procedure allows longitudinal and lateral separation of aircraft
in oceanic areas to be reduced to 30 nautical miles each

The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

518.0 kHz SUH Alexandria Radio, Egypt
BA = British Admiralty

6535.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft 9V-SHW + 9V-SMO + flight CCA618
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
BI = Basic Index
BO = Blank Operation Weight
BW = Basic Weight
CPTLD = Compartment Load
DLI = Dead Load Index
DOI = Dry Operating Index
DOW = Dry Operating Weight
LGW = Landing Gross Weight
LITOW = Loaded Index at TOW
LIZFW = Loaded Index at ZFW
LMC = Last Minute Change
MAC... = Mean Aerodynamic Chord ...
NOTOC = Notice To Captain (whenever dangerous goods or other special load items are to be carried)

4209.5 kHz XVG Hai Phong Radio, Viet Nam

490.0 kHz Taganrog Radio, Russian Federation

518.0 kHz VAJ Canadian Coast Guard Prince Rupert BC, Canada
Haida Gwaii = ex Queen Charlotte Islands

518.0 kHz L2G Argentinian Coast Guard Buenos Aires, Argentina
VTS = Vessel Traffic Service

9165.0 kHz HLL Soul Meteo, South Korea

9165.0 kHz HLL Soul Meteo, South Korea

7795.0 kHz JMH2 Tokyo Meteo, Japan

518.0 kHz Antalya Radio, Turkey

8416.5 kHz NMC United States Coast Guard San Francisco CA, United States of America

518.0 kHz Sandakan Radio, Sabah, Malaysia
ROV = Remotely Operated Vehicle
Warnings still in force - received 030300Z MAR 2022

6589.0 kHz H11 HFDL Panama City Air, Panama, + aircraft CC-BGL + flight AS0834 + LAN530 + MCED53

518.0 kHz XSZ Dalian Radio, China

518.0 kHz UFO Kholmsk Radio FE, Russian Federation

518.0 kHz L2G Argentinian Coast Guard Buenos Aires, Argentina
VS = Vessel Service

13321.0 kHz H08 HFDL Johannesburg Air, South Africa (Republic of), + aircraft ET-AUB + 4R-ABQ + flight KNE411
The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

The Waypoint Change Event is triggered by a change
made to the Next, or the Next-plus-one waypoint
This change normally occurs due to normal waypoint sequencing by the FMS
The Next or Next-plus-one waypoint can be either an ATS waypoint or a pilot inserted waypoint

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

7795.0 kHz JMH2 Tokyo Meteo, Japan

8424.0 kHz UDK Murmansk Radio, Russian Federation

518.0 kHz Bjuroklubb Radio, Sweden

8302.0 kHz XSG Shanghai Radio, China
CMA = China Meteorological Administration

518.0 kHz VBA Canadian Coast Guard Pass Lake ONT, Canada

21934.0 kHz H01 HFDL San Francisco Air CA, United States of America, + flight AS0872 + AVA978

7795.0 kHz JMH2 Tokyo Meteo, Japan

486.0 kHz XSG Shanghai Radio, China
Chinese teleprinter code after Latin alphabet header

518.0 kHz V5W Walvis Bay Radio, Namibia
LNW = Local Navigational Warning
Warnings still in force - received 202000Z FEB 2022

4209.5 kHz XVG Hai Phong Radio, Viet Nam
Warnings still in force - received 191400Z FEB 2022

518.0 kHz Byunsan Radio, South Korea
JCS = Joint Chiefs of Staff

518.0 kHz UCV Okhotsk Radio FE, Russian Federation

518.0 kHz XSG Shanghai Radio, China

17928.0 kHz H17 HFDL Telde Air, Canary Islands, + aircraft ZS-SXF + 5Y-CYD + flight AFL154
Cruise parameters DGAA - GFLL ...
DFB = Digital Flight Book
AMDAR decoding - see page 271 ff. in our Radio Data Code Manual
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

518.0 kHz Izmir Radio, Turkey
Warnings still in force - received 160520Z FEB 2022

7396.9 kHz HSW64 Bangkok Meteo, Thailand

7396.9 kHz HSW64 Bangkok Meteo, Thailand

518.0 kHz OXJ Torshavn Radio, Faroe Islands, Denmark
DMI = Danish Meteorological Institute

518.0 kHz EJK Irish Coast Guard Valentia, Ireland

16559.0 kHz XSG Shanghai Radio, China
CMA = China Meteorological Administration

16559.0 kHz XSG Shanghai Radio, China
CMA = China Meteorological Administration

16559.0 kHz XSG Shanghai Radio, China
CMA = China Meteorological Administration

518.0 kHz UBE Petropavlovsk - Kamchatskiy Radio FE, Russian Federation
Africa Cape = Mys Afrika is ... the easternmost point of the Kamchatka Peninsula!

518.0 kHz Fuzhou Radio, China
CMA CGM = Compagnie Maritime d'Affretement - Compagnie Generale Maritime

16971.0 kHz JJC Kyodo Tsushin Tokyo, Japan
1800 LT kilogram prices from the Japan Tuna Fisheries Co-Operative Association at the bottom ...

10063.0 kHz H11 HFDL Panama City Air, Panama, + aircraft CC-CWY + CC-CXH + flight L71804
Air and ground end systems include
(1) Datalink Application Service Element = CPDLC
(2) Aeronautical Telecommunication Network upper layers
(3) TP4 = Transport Protocol Class 4
The Periodic Contract is a report sent every ... minutes
It specifies the reporting rate at which the avionics is required
to assemble and downlink the requested information to the ground system
The minimum reporting rate is usually not greater than every 14 minutes
but can vary to suit the need of the ground station
This procedure allows longitudinal and lateral separation of aircraft
in oceanic areas to be reduced to 30 nautical miles each

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

17985.0 kHz H03 HFDL Reykjavik Air, Iceland, + flight UAL107

518.0 kHz 3VL Kelibia Radio, Tunisia

5156.8 kHz TBB Turkish Navy Ankara, Turkey

10555.0 kHz VMW Wiluna Meteo WA, Australia

10060.0 kHz H10 HFDL Muan Air, South Korea, + flight CES668 + CSC892

518.0 kHz ZBM Hamilton Harbour Radio, Bermuda

2790.8 kHz FUE French Navy Brest, France
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

7657.0 kHz RDL Commonwealth of Independent States Navy Vilyeyka, Belarus

518.0 kHz Berdyans'k Radio, Ukraine

518.0 kHz LZW Varna Radio, Bulgaria

518.0 kHz Centre Regional Operationnel de Surveillance et de Sauvetage Toulon, France

518.0 kHz Sellia Marina Radio, Italy

518.0 kHz NMR United States Coast Guard San Juan, Puerto Rico

4227.5 kHz IDR Italian Navy Rome, Italy
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

518.0 kHz Myeik Radio, Myanmar

21997.0 kHz H13 HFDL Santa Cruz Air, Bolivia, + flight M76376

518.0 kHz VAU Canadian Coast Guard Chebogue NS, Canada

518.0 kHz Gislovshammar Radio, Sweden

518.0 kHz LGP Bodoe Radio, Norway

8477.3 kHz FUX French Forces Le Port de la Riviere des Galets, Reunion

17919.0 kHz H16 HFDL Barrigada Air, Guam, + flight CES211 + CES669

3855.0 kHz DDH3 Hamburg Meteo, Germany

16135.0 kHz KVM70 Honolulu Meteo, Hawaii

13962.5 kHz Digital data station

2610.2 kHz FUO French Navy Toulon, France
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

5100.0 kHz VMC Charleville Meteo QLD, Australia

5100.0 kHz VMC Charleville Meteo QLD, Australia

16971.0 kHz JJC Kyodo Tsushin Tokyo, Japan
News in Indonesian ...

13315.0 kHz H13 HFDL Santa Cruz Air, Bolivia, + aircraft PR-TYM + flight AT8532
Perfect start message sequence ...
ACDM = Airport Collaborative Decision Making
DFB = Digital Flight Book
DT = Destination, followed by the runway number
FN = Flight Number
FSM = Flight System Message
REQPRG = Request Flight Progress Report
TI2 = Terminal Information Request
TSAT = Target Start-Up Approval Time
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

13315.0 kHz H13 HFDL Santa Cruz Air, Bolivia, + aircraft N339UP + PR-TYK + PR-YYH + flight UAE2WC
Engine Cruise Report SBCY - SBSI ...
= collection of data over a period of time
in which the aircraft met the appropriate stability criteria
If no stability is detected, then the report
ends with NO STABLE FRAME CONDITION
Aircraft in-flight performance parameters such as OIT = Oil Temperature are explained e.g. here
The yellow table below shows a typical parameters list ...
Note that in this screenshot, however, the text is not table-formatted;
anyway, standard row identifiers such as CC C0 C1 CE ... can be easily identified after the slash ...

21955.0 kHz H17 HFDL Telde Air, Canary Islands, + aircraft SU-GEI + VN-A896 + VP-BQE + flight ETD78G
Flight parameters ...
DFD = Digital Flight Data
DT = Destination, followed by the runway number
ECS = Environmental Control System
EDP = Engine Display Panel
FCV = Flow Control Valve
FN = Flight Number
PACK = Pressurization Air Conditioning Kit
RCF = Radio Communication Failure
REQPWI = Predicted Wind Request for FL 380
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

13315.0 kHz H13 HFDL Santa Cruz Air, Bolivia, + aircraft CC-BBD + CC-BBJ + CC-CWY + PR-TYR + PR-TYS + 9XR-WQ + flight CM0759
CG = Center of Gravity
CI = Consistency Index
FEL = Fuel Estimation Left
FER = Fuel Estimation Right
REQPWI = Predicted Wind Request for FL 390 370 350 330

13315.0 kHz H13 HFDL Santa Cruz Air, Bolivia, + aircraft CC-CWY + flight AZU230
DFB = Digital Flight Book
EEC = Electronic Engine Controller
EGT = Exhaust Gas Temperature
FAV = Fan Air Valve
FF = Fuel Flow (for engines 1 + 2)
IDG = Integrated Drive Generator
ISFC = Indicated Specific Fuel Consumption
LPT = Low Pressure Turbine
OIP = Oil Pressure
OIQ = Oil Quantity
OIT = Oil Temperature
PACK = Pressurization Air Conditioning Kit
PCMCIA = Personal Computer Memory Card International Association
(the same as Boeing's DFDAU = Digital Flight Data Acquisition Unit)
TLA = Thrust Lever Angle

4610.0 kHz GYA Royal Navy London, United Kingdom

4346.0 kHz NMC United States Coast Guard San Francisco CA, United States of America

4346.0 kHz NMC United States Coast Guard San Francisco CA, United States of America

17315.9 kHz NMG United States Coast Guard New Orleans LA, United States of America

518.0 kHz XSX Chi-Lung Radio, Taiwan (Democratic Republic of China)

21949.0 kHz H06 HFDL Hat Yai Air, Thailand, + flight CES618 + SIA882

12382.0 kHz XSG Shanghai Radio, China
CMA = China Meteorological Administration

518.0 kHz UGE Arkhangelsk Radio, Russian Federation
Warnings still in force - received 270550Z DEC 2021

518.0 kHz TFX Siglufjördur Radio, Iceland
Saudanes is the name of the lighthouse in that fjord ...

7880.0 kHz DDK3 Hamburg Meteo, Germany

7880.0 kHz DDK3 Hamburg Meteo, Germany

21955.0 kHz H17 HFDL Telde Air, Canary Islands, + flight LAA202 + QTR52F

518.0 kHz VCO Canadian Coast Guard Port Caledonia NS, Canada

518.0 kHz OXF Simiutaq Radio, Greenland
TUSASS is the new name for Tele Post Greenland

7795.0 kHz JMH2 Tokyo Meteo, Japan
TS 2122 = Tropical Storm Rai

8040.0 kHz GYA Royal Navy London, United Kingdom

518.0 kHz Parangipettai Radio, India

5100.0 kHz VMC Charleville Meteo QLD, Australia

5807.0 kHz ZKLF Auckland Meteo, New Zealand

518.0 kHz Don Sak Radio, Thailand
See 5 AUG 2021 NAVTEX Panel Report

518.0 kHz ZSC Cape Town Radio, South Africa (Republic of)

6450.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

17151.2 kHz NMC United States Coast Guard San Francisco CA, United States of America

17151.2 kHz NMC United States Coast Guard San Francisco CA, United States of America

518.0 kHz VON Canadian Coast Guard Robin Hood Bay NFLD, Canada

12750.0 kHz NMF United States Coast Guard Boston MA, United States of America

5195.0 kHz DRA5 Kiel, Germany

12750.0 kHz NMF United States Coast Guard Boston MA, United States of America

8416.5 kHz VFF Canadian Coast Guard Iqaluit NUN, Canada

8416.5 kHz VFF Canadian Coast Guard Iqaluit NUN, Canada

8416.5 kHz VFF Canadian Coast Guard Iqaluit NUN, Canada

8682.0 kHz NMC United States Coast Guard San Francisco CA, United States of America
ITCZ = Inter-Tropical Convergence Zone

8682.0 kHz NMC United States Coast Guard San Francisco CA, United States of America

518.0 kHz Grindavik Radio, Iceland

9001.0 kHz 4XZ Israel Navy Haifa, Israel

518.0 kHz Talcahuano Radio, Chile

5100.0 kHz VMC Charleville Meteo QLD, Australia

7795.0 kHz JMH2 Tokyo Meteo, Japan

16135.0 kHz KVM70 Honolulu Meteo, Hawaii

16135.0 kHz KVM70 Honolulu Meteo, Hawaii

10093.0 kHz H09 HFDL Barrow Air, Alaska, + aircraft B-5926 + B-18915 + N353UP + N598FE + flight AC7297
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FCA = Facilities Contact Advisory
FCO ADS = Facilities Contact ADS-C
FCO ATC = Facilities Contact CPDLC
FMH = Facilities Message Header = Flight Number
FPO = Facilities Current Position
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

6030.0 kHz China National Radio DRM transmission
decoded with the Kiwi-SDR extension feature

4583.0 kHz DDK2 Hamburg Meteo, Germany

4583.0 kHz DDK2 Hamburg Meteo, Germany

16971.0 kHz JJC Kyodo Tsushin Tokyo, Japan

11063.0 kHz H11 HFDL Panama City Air, Panama, + aircraft N426AV + N481AV + PR-ABD + flight AVA984
SKCL - SKCO flight parameters ...
DFB = Digital Flight Book
DT = Destination, followed by the runway number
FN = Flight Number
ISFC = Indicated Specific Fuel Consumption
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

490.0 kHz Puerto Montt Radio, Chile

10093.0 kHz H09 HFDL Barrow Air, Alaska, + aircraft HL7623 + flight CPA884
Riding on the North Pacific Jet Stream near the Near Islands ;-))
at 558+ knots = 1033+ kilometres per hour ...
POSREP = DA - DS - Date - Time - POS - FL - FOB
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FMH = Facilities Message Header = Flight Number
FRP = Facilities Response
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

The Waypoint Change Event is triggered by a change
made to the Next, or the Next-plus-one waypoint
This change normally occurs due to normal waypoint sequencing by the FMS
The Next or Next-plus-one waypoint can be either an ATS waypoint or a pilot inserted waypoint

518.0 kHz Kao-Hsiung Radio, Taiwan (Democratic Republic of China)

10093.0 kHz H09 HFDL Barrow Air, Alaska, + aircraft HL7616 + HL7794 + VP-BAV + 9V-SHJ + 9V-SMV + flight ACA318
FDC = Flight Data Center
OCC = Operations Control Centre
TI2 = Terminal Information Request
The Periodic Contract is a report sent every ... minutes
It specifies the reporting rate at which the avionics is required
to assemble and downlink the requested information to the ground system
The minimum reporting rate is usually not greater than every 14 minutes
but can vary to suit the need of the ground station
This procedure allows longitudinal and lateral separation of aircraft
in oceanic areas to be reduced to 30 nautical miles each

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

10093.0 kHz H09 HFDL Barrow Air, Alaska, + aircraft B-LXO + B-30CV + B-304F + B-6011 + HL7616 + N886FD + VP-BBP + flight HY3633
CFP = Computerized Flight Plan
GOCC = Global Operations Control Center
OCC = Operations Control Centre
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

The codes of ACARS Message Labels can be found here

10093.0 kHz H09 HFDL Barrow Air, Alaska, + aircraft F-HRBH + N628UP + N879FD + OH-LWE
CFD = Centralized Fault Display
GOCC = Global Operations Control Center
LIDO = Lufthansa Integrated Dispatch Operation =
FMS software used by 180+ airlines worldwide

Full text from Tokyo VAAC ...

8416.5 kHz UFZ Vladivostok Radio SE, Russian Federation
Warnings still in force - received 231100Z AUG 2021

518.0 kHz Grimeton Radio, Sweden

11090.0 kHz KVM70 Honolulu Meteo, Hawaii
ITCZ = Inter-Tropical Convergence Zone

13270.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft B-6091 + B-6410 + EP-IJA + N575UP + VP-BKP
ADIRU = Air Data Inertial Reference Unit
ADR = Air Data Reference
CFB = Centralized Fault Book
DFD = Digital Flight Data
EEC = Electronic Engine Controller
EFCS = Electronic Flight Control System
FR = Fault Report, followed by the Date-Time Group
WN = Warning Number, followed by the Date-Time Group

16067.7 kHz Ministry of Foreign Affairs Cairo, Egypt
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

21866.0 kHz FC6FEM Federal Emergency Management Agency Denton TX, United States of America
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

6312.0 kHz 004773500 Hong Kong Radio, China, calling ship station
with MMSI = Maritime Mobile Service Identity 567571000 = Container Ship Jaru Bhum
005030001 Rescue Coordination Centre Canberra ACT, Australia
calling 477726600 = Bulk Carrier Hebei Universe
See page 96 ff. in our Radio Data Code Manual

490.0 kHz EAC Tarifa Radio, Spain

4209.5 kHz SVH Iraklion Radio, Greece

8677.0 kHz CBV Valparaiso Radio, Chile

Just for fun, here's the "original" image ... Click to enlarge!

12711.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

8439.0 kHz PBB Dutch Navy Den Helder, Netherlands

11306.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-208R + B-308E + B-6919 + CC-CWV + N117FE + N616UP + 9V-SCE
DFD = Digital Flight Data
TI2 = Terminal Information Request
The Waypoint Change Event is triggered by a change
made to the Next, or the Next-plus-one waypoint
This change normally occurs due to normal waypoint sequencing by the FMS
The Next or Next-plus-one waypoint can be either an ATS waypoint or a pilot inserted waypoint

The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

490.0 kHz CTV Portuguese Navy Lisbon, Portugal

518.0 kHz Cape Columbine Radio, South Africa (Republic of)

9982.5 kHz KVM70 Honolulu Meteo, Hawaii
The left-hand chart has been transmitted incomplete
so that the left-hand margin is corrupted ...

8658.0 kHz JFX Kagoshima Fisheries Radio, Japan
JAFIC = Japan Fisheries Information Service Center
The date reads 3 4 16 = 2021 April 16
since the Japanese calendar year in the Reiwa Era is used here
Formula: Reiwa year + 2018 = Gregorian year
Tentative schedule see here

518.0 kHz L2N Argentinian Coast Guard Bahia Blanca, Argentina

12750.0 kHz NMF United States Coast Guard Boston MA, United States of America

12750.0 kHz NMF United States Coast Guard Boston MA, United States of America

12750.0 kHz NMF United States Coast Guard Boston MA, United States of America

8459.0 kHz NOJ United States Coast Guard Kodiak, Alaska

490.0 kHz Byunsan Radio, South Korea
Very weak signal, however ... "KOREA NAVTEX// DIZCSA CLAADK// ..."
is the typical header preceding messages in Korean using the Han Gul alphabet -
see page 234 ff. in our Radio Data Code Manual

6220.0 kHz IDN Italian Navy Napoli, Italy

16135.0 kHz KVM70 Honolulu Meteo, Hawaii
ITCZ = Inter-Tropical Convergence Zone

518.0 kHz EQM Bushire Radio, Iran

518.0 kHz EQI Abbas Radio, Iran

518.0 kHz UHY Murmansk Radio, Russian Federation

12789.9 kHz NMG United States Coast Guard New Orleans LA, United States of America

518.0 kHz L3I Argentinian Coast Guard Rio Gallegos, Argentina

518.0 kHz L3O Argentinian Coast Guard Ushuaia, Argentina

12789.9 kHz NMG United States Coast Guard New Orleans LA, United States of America
ITCZ = Inter-Tropical Convergence Zone

12789.9 kHz NMG United States Coast Guard New Orleans LA, United States of America

6340.5 kHz NMF United States Coast Guard Boston MA, United States of America

490.0 kHz UON Baku Radio, Azerbaijan

8106.9 kHz SWA28 Athens Meteo, Greece
New schedule see here

8106.9 kHz SWA28 Athens Meteo, Greece
New schedule see here

8106.9 kHz SWA28 Athens Meteo, Greece
New schedule see here

16559.0 kHz XSG Shanghai Radio, China
CMA = China Meteorological Administration

12235.0 kHz 7CB Indonesian Navy Belawan, Indonesia

16023.7 kHz Egyptian Embassy Washington DC, United States of America, to Ministry of Foreign Affairs Cairo, Egypt

7778.7 kHz 44406 Egyptian Embassy Delhi, India, to 99904 Ministry of Foreign Affairs Cairo, Egypt

4233.0 kHz Fully automatic frequency step mode monitoring
with continuous classification of digital data signals
on a remote receiver abroad

State-of-the-art digital data signals have been tested since 2013
by innovative broadcast stations such as the Voice of America ...
Here's a 6067.1 kHz MFSK-16 emission on the lower sideband
of AM station Channel 292 transmitting both sidebands
2900 Hz from the carrier frequency 6070.0 kHz
New 2022 edition of our Perseus Frequency Database
now shows utility stations' callsigns as well!

8454.8 kHz FUG French Navy Saissac, France
New 2022 edition of our Perseus Frequency Database
now shows utility stations' callsigns as well!

6095.0 kHz Broadcast (!) radio station KBC, Netherlands via Germany
testing state-of-the-art digital data signals
such as parallel MFSK emissions on 6093.5 and 6096.5 kHz
i.e. on both sidebands 1500 Hz from the carrier frequency 6095.0 kHz
New 2022 edition of our Perseus Frequency Database
now shows utility stations' callsigns as well!

18529.5 kHz 7RV50 Algerian Embassy Moscow, Russian Federation, to 7RQ20 Ministry of Foreign Affairs El Djaza'ir, Algeria

18063.3 kHz RC2JAL International Committee of the Red Cross Jalalabad, Afghanistan, via MB1TBI International Committee of the Red Cross Tbilisi, Georgia, to RC2KAB International Committee of the Red Cross Kabul, Afghanistan

13973.0 kHz RC2PES International Committee of the Red Cross Peshawar, Pakistan, via MB1TBI International Committee of the Red Cross Tbilisi, Georgia, to RC2MAZ International Committee of the Red Cross Mazar-e Sherif, Afghanistan

More than 24,000 (twenty four thousand!) fascinating screenshots are available on our unique Digital Data Decoder Screenshots USB Stick!