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 and WAVECOM 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.


4209.5 kHz XVG Hai Phong Radio, Viet Nam

4209.5 kHz XSQ Guangzhou Radio, China

5583.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft 9V-SML
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

5583.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft 9V-SML
Perfect CPDLC ...
Riding on the South Pacific Jet Stream over the Tasman Sea
at 559+ knots = 1040+ kilometres per hour ...
Descending from FL 410 ...
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
FRP = Facilities Response
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 VFF Canadian Coast Guard Iqaluit NUN, Canada
Warnings still in force - received 161530Z JUN 2021

3585.0 kHz HLL8 Soul Meteo, South Korea

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

17919.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-30DA + B-8595 + JA214A + N107FE + 9V-SMJ + 9V-SMM
Flight parameters ZSPD - ZYDQ and RJTT - RJOA ...
DFB = Digital Flight Book
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

17919.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-LXB + B-5937 + B-6011 + JA900A + N107FE + N614UP + 9V-SHD
Enroute weather ZSHC - ZSYT ...
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
CFB = Centralized Fault Book
DFB = Digital Flight Book
DFD = Digital Flight Data
DT = Destination, followed by the runway number
FN = Flight Number
OCCS = Operations Control Centre Singapore
TS = Time Stamp
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 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

518.0 kHz VAU Canadian Coast Guard Chebogue NS, Canada

8939.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft B-LXK + B-305X + B-307Z + B-2419 + HL7736 + JA816A + JA821A
DFD = Digital Flight Data

490.0 kHz EAC Tarifa Radio, Spain

8939.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft B-7839 + N344KD
TORA = Take Off Run Available
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 codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

6619.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft B-304D + B-6631 + HL7793 + RPC8764
TI2 = Terminal Information Request
Message A9E = RKPC ATIS received incomplete ...

518.0 kHz NMG United States Coast Guard New Orleans LA, United States of America
Warnings still in force - received 151300Z JUN 2021

6652.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-20C6 + B-8633 + VQ-BLQ + 9V-SCC + 9V-SMO + flight CES717
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

12375.5 kHz XSQ Guangzhou Radio, China
New radiofax service, schedule see here

12375.5 kHz XSQ Guangzhou Radio, China
New radiofax service, schedule see here

4209.5 kHz XSV Tianjin Radio, China

6652.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + flight UPS10

6652.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft HL7610 + N574UP + VQ-BGZ
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

8425.5 kHz XSG Shanghai Radio, China

8658.0 kHz JFX Kagoshima Fisheries Radio, Japan
Latest tuna market prices ...
The date reads 3 6 14 = 2021 June 14
since the Japanese calendar year in the Reiwa Era is used here
Formula: Reiwa year + 2018 = Gregorian year
Tentative schedule see here

11184.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft B-2760 + B-8577 + HZ-NS25 + JA204P + SP-LWF + flight CCA579
LICJ runway lengths ...
CFB = Centralized Fault Book
FLR = Flight Recorder
FR = Fault Report
LDTA = Landing Distance at Time of Arrival
RCC = Runway Condition Code
VSC = Vacuum System Controller

11184.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft B-2097 + F-HRBI + G-VNEW + N515DN + SU-GEE + VP-BIK + VQ-BWG
CFD = Centralized Fault Data
ECS = Environmental Control System
HOTAC = Hotel Accommodation
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

13303.0 kHz ACARS/HFDL H17 Telde Air, Canary Islands, + aircraft F-HROK + JY-AYP + SU-GCP + UK32019 + VP-BTJ
CFB = Centralized Fault Book
TI2 = Terminal Information Request
WN = Warning Number
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
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 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

17928.0 kHz ACARS/HFDL H17 Telde Air, Canary Islands, + aircraft SU-GCN + SU-GDD + 5A-LAR
DT = Destination, followed by the runway number
FN = Flight Number
PSH = Pushback Time
PWI = Wind Forecast
WD360 = for FL 360
REQPWI = Wind Forecast Request for FL 360
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

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

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

13276.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft B-2298 + B-2760 + N627UP + N5179A
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

13276.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft B-2760 + JA817P + JA827A + N868FD
CFD = Centralized Fault Data
DFD = Digital Flight Data

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft B-5902 + N627UP + N5179A
Flight parameters ZSPD - KLAX ...
DFB = Digital Flight Book
FICON = Field Conditions
LAHSO = Land And Hold Short Operations
TI2 = Terminal Information Request

518.0 kHz PKX Jakarta Radio, Indonesia

8942.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft B-LJM + B-2090 + SU-GDZ + N581UP + N38955 + VP-BID
CFD = Centralized Fault Data
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 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

8942.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + flight QTR2CC

8942.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft A6-BLE + A6-BLK + B-LJM + N540LA + VP-BHA + VP-BJY + VQ-BTI
FSM = Flight System Message
TOBT = Target Off Block Time
TTOT = Target Take Off Time
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 codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

518.0 kHz 9WW21 Miri Radio, Sarawak, Malaysia
Kuching? Ini stesen baru lah??
Test messages received 171510Z APR 2021
Totally outdated meteorological warnings of several days ago ...
Alamak! Tak boleh tahan lah!

8942.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft N507DN + N582FE + SU-GDZ + VP-BIM + VP-BPX
CFD = Centralized Fault Data
FOD = Fuel Over Destination
GOCC = Global Operations Control Center
LMTOGW = Limiting Maximum Operational Take-Off Gross Weight
MFWF = Minimum Flight Weight Fuel
RPF = Reliability Protection Fuel
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 NMC United States Coast Guard San Francisco CA, United States of America

8805.8 kHz Digital data station

8942.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft EC-NBE + 5A-LAP + VP-BIF + VP-BPQ + VP-BTK
AFS = Auto Flight System
CFB = Centralized Fault Book
CFDS = Centralized Fault Display System
CSAS = Conditioned Service Air 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
FR = Fault Report
FTIS = Fuel Tank Inerting System
LPTC = Low Pressure Turbine Control
OBRM = On Board Replaceable Module
RMP = Radio Management Panel
SLDS = Saludos
TPIS = Tire Pressure Indicator System
WN = Warning Number

8431.0 kHz XSQ Guangzhou Radio, China

8431.0 kHz XSQ Guangzhou 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

16971.0 kHz JJC Kyodo Tsushin Tokyo, Japan

4209.5 kHz TAH Istanbul Radio, Turkey

10093.0 kHz ACARS/HFDL H09 Barrow Air, Alaska, + aircraft B-18907 + N578UP
Flight parameters ZSNJ - KLAX and RKSI - PANC ...
PANC runway lengths and landing data for runway 15 ...
CFB = Centralized Fault Book
CFD = Centralized Fault Data
DFB = Digital Flight Book
DFD = Digital Flight Data
E/O GRAD = Engine Inoperative Approach Climb Gradient
FDE = Fault Detection and Exclusion
RT = Right Turn, Heading ...
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

10093.0 kHz ACARS/HFDL H09 Barrow Air, Alaska, + aircraft N578UP
Settings ...
CFB = Centralized Fault Book
DFB = Digital Flight Book
ECS = Environmental Control System
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

10093.0 kHz ACARS/HFDL H09 Barrow Air, Alaska, + aircraft N576FE + N578UP
PHNL - PANC routing ...
CFD = Centralized Fault Data
CIG = Ceiling Height
DFB = Digital Flight Book
ECS = Environmental Control System
GOCC = Global Operations Control Center
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

4209.5 kHz SVH Iraklion Radio, Greece

11184.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft B-209X + C-FNOE + G-POWK + HZ-NS27 + N626UP
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 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

11184.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft B-2482 + JY-AYS + TC-FHC + VP-BRG
CFB = Centralized Fault Book
DA = Departure Airport
DAR = Data Access Recorder
DM = Time Stamp
DMU = Data Management Unit
DS = Destination Airport
FR = Fault Report
MMR = Multi-Mode Receiver
TI2 = Terminal Information Request
WN = Warning Number

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

11184.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft N877FD + SU-GCJ + VP-BAY + VP-BRG + 5Y-CYD
DT = Destination, followed by the runway number
EENT = End of Evening Nautical Twilight
ETP = Equitime Point
FN = Flight Number
GOCC = Global Operations Control Center
GW = Gross Weight
REQPWI = Wind Forecast Request for FL 340 360
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

6652.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft JA886A + N623UP + VP-BDN + 9V-SHK + 9V-SMZ + flight SIA38
DFD = Digital Flight 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

4209.5 kHz XVN Nha Trang Radio, Viet Nam
Warnings still in force - received 091620Z JUN 2021

13342.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + flight CCA148

8416.5 kHz NMO United States Coast Guard Honolulu, Hawaii
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

11312.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-2760 + HL7793 + N392HA + N419AS + N626UP
AA = Arrival Airport
CFB = Centralized Fault Book
DA = Departure Airport
FLR = Flight Recorder
FR = Fault Report
SDU = Satellite Data Unit
SR = Seat Row
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

6565.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-1266 + N30913 + PK-GFF + PK-GFY + 9V-SGA + 9V-SHK
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 ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft EP-MMQ + N30913
HOWGOZIT is a downlink (!) request for an uplink (!) calculation of WP - ETO - FOB
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

13276.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft B-7869 + JA17KZ + JA808A + N895FD + N30913
Waypoint routing calculation ...
DFD = Digital Flight Data
DT = Destination, followed by the runway number
FN = Flight Number
REQPRG = Request Flight Progress Report
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCA = Facilities Contact Advisory
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 codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

518.0 kHz Chukpy Radio, South Korea

13342.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft B-30DQ + B-304C + B-2289 + B-5391 + B-6507 + B-6636 + JA202P + JA805A

13342.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft B-308L + B-2420 + B-6325 + B-8495 + B-8502 + JA201P + JA809A
DFD = Digital Flight Data

518.0 kHz 9HD Valetta Radio, Malta
TM = Tele Malta
Warnings still in force - received 070620Z JUN 2021

518.0 kHz SVL Limnos Radio, Greece
Warnings still in force - received 070550Z JUN 2021

518.0 kHz UDN Novorossiysk Radio, Russian Federation

7433.5 kHz HLL5 Soul Meteo, South Korea
DFS = Digital Forecast System

7433.5 kHz HLL5 Soul Meteo, South Korea
DFS = Digital Forecast System

7433.5 kHz HLL5 Soul Meteo, South Korea
GK2A = GEO KOMP Sat 2A = Geostationary Korea Multi Purpose Satellite

7433.5 kHz HLL5 Soul Meteo, South Korea

13550.5 kHz ZKLF Auckland Meteo, New Zealand

6535.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + flight CES200

490.0 kHz Sellia Marina Radio, Italy

13324.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-6326 + B-6507 + HL7206 + HL8282 + N857GT + N5179A
RKSI - KATL L/R GEC42 engine data ...
CFD = Centralized Fault Data
DFD = Digital Flight Data
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

518.0 kHz JGC Yokohama Radio, Japan

518.0 kHz HSA Bangkok Radio, Thailand
Warnings still in force - received 060850Z JUN 2021

13324.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-1128 + JA839A + N578UP + N588NW + N851FD
CFD = Centralized Fault Data
ECB = Electronic Circuit Board
ECS = Environmental Control System
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

10093.0 kHz ACARS/HFDL H09 Barrow Air, Alaska, + aircraft HL7624 + JA12KZ + JY-BAG + VQ-BUB + flight CCA601
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

518.0 kHz XSI Sanya Radio, China

10093.0 kHz ACARS/HFDL H09 Barrow Air, Alaska, + aircraft HL7624 + JA12KZ + N608UP
Flight parameters RKSI - PANC ...
DFB = Digital Flight Book
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

8977.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft C-FNOE + HZ-NS36 + JY-AYP + JY-AYQ + JY-BAG + SU-GCR
Riding on the North Atlantic Jet Stream near Newfoundland
at 600+ knots = 1100+ kilometres per hour ...
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 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

12375.5 kHz XSQ Guangzhou Radio, China
New radiofax service, schedule see here

Tropical Storm = Typhoon Dante = Choi-Wan ...

8977.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft CS-TSF + EI-EJH + OH-LWC + P4-KDD + VP-BIM + VP-BKJ + VQ-BRW + 5A-WLA
CFB = Centralized Fault Book
CFD = Centralized Fault Data
CIDS = Cabin Intercommunication Data System
DA = Departure Airport
DAR = Data Access Recorder
DM = Time Stamp
DMU = Data Management Unit
DS = Destination Airport
FR = Fault Report
TOBT = Target Off Block Time
TTOT = Target Take Off Time
WN = Warning Number

Translated by - you know ...

8977.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft CN-RGJ + EP-MME + HZ-NS37 + N583UP + SU-GCR + TC-DCJ + VP-BKR + VP-BPR
Message RS7 seems to be a new AEROFLOT reporting format ...
CDB = Commandeur Du Bord
CFB = Centralized Fault Book
CPC = Cabin Pressure Controller
DT = Destination, followed by the runway number
FLR = Flight Recorder
FN = Flight Number
FR = Fault Report
FWS = Flight Warning System
PWI = Wind Forecast
WD380 = for FL380
REQPRG = Request Flight Progress Report
REQPWI = Wind Forecast Request for FL380
WN = Warning 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

13276.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft N509DN + N608UP + XA-ADH
FMC = Flight Management Computer
MLP = Mullan Pass Waypoint
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

11312.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft HL8282 + JA831A + N506DN + N615UP
LIDO = Lufthansa Integrated Dispatch Operation =
FMS software used by 180+ airlines worldwide
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

518.0 kHz GPK Portpatrick Radio, United Kingdom
FOSNI = Flag Officer Scotland and Northern Ireland
GUNFACTS = Practice firing intentions by military units
SUBFACTS = Planned or known submarine activity

16806.5 kHz NMC United States Coast Guard San Francisco CA, United States of America
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

12741.0 kHz RDL Commonwealth of Independent States Navy Vilyeyka, Belarus

6661.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft CC-CXH + N295AV + N442AS + N481AV + N643GT + N745AV + N854GT
DT = Destination, followed by the runway number
FN = Flight Number
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 codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

11387.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft F-HRBC + N117FE + N515DN + N608UP + N12006 + 9V-SGG
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
CFD = Centralized Fault Data
DFD = Digital Flight Data
ECS = Environmental Control 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

518.0 kHz TAH Istanbul Radio, Turkey

8582.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

8477.3 kHz FUX French Forces Le Port de la Riviere des Galets, Reunion
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

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

12711.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

518.0 kHz NMW United States Coast Guard Astoria OR, United States of America

518.0 kHz NOJ United States Coast Guard Kodiak, Alaska

10093.0 kHz ACARS/HFDL H09 Barrow Air, Alaska, + aircraft C-FNNW + JA928A + N842FD + N863FD + flight DAL41
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

4209.5 kHz XVG Hai Phong Radio, Viet Nam

4209.5 kHz XVN Nha Trang Radio, Viet Nam

13276.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + flight UPS88

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

11387.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft N239NV + N401AV + N540LA + N5153A
Flight parameters SKBO - SKCL ...
Cruise parameters KMIA - SGES ...
ATSU = Air Traffic Service Unit
CFB = Centralized Fault Book
CFDS = Centralized Fault Display System
DFB = Digital Flight Book
DT = Destination, followed by the runway number
FICON = Field Conditions
FLR = Flight Recorder
FN = Flight Number
FR = Fault Report
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 UUI Odessa Radio, Ukraine

490.0 kHz Taganrog Radio, Russian Federation

490.0 kHz DDH9 Hamburg Meteo, Germany

10084.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + flight MAS145

6652.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-30C2 + B-1345 + B-6100 + B-8502 + 9V-SCA + 9V-SHA
CFB = Centralized Fault Book
EEC = Electronic Engine Controller
WN = Warning 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

4209.5 kHz XVG Hai Phong Radio, Viet Nam

518.0 kHz NMA United States Coast Guard Miami FL, United States of America

10081.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft A7-BGB + JA15KZ + 7O-OFB
Perfect OOOI hopping HECA - OYAA - HSSK - OYAA - OERK ...
EPCS = Engine Propulsion Control System
REQPWI = Wind Forecast Request for FL 350 390 430 470

11312.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft HL7792 + JA809A + JA212A + N515DN + VP-BIG
RJOA 6. refers to light / light-medium turbulence ...
CFD = Centralized Fault Data
DFD = Digital Flight Data
OTP = On Top
PWI = Wind Forecast
WD390 = for FL390
WD410 = for FL410
SR = Sunrise
SS = Sunset

11312.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft HL7792 + HL8079 + N124FE + N515DN
GOCC = Global Operations Control Center
LIDO = Lufthansa Integrated Dispatch Operation =
FMS software used by 180+ airlines worldwide
A NOTAM decoder can be found e.g. here

13324.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-2038 + B-8390 + RPC8398 + 9V-SCA + 9V-SHR + flight LAN197
CFB = Centralized Fault Book
ETO = Estimated Time of Overfly
WN = Warning 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

8416.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina

8416.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina

8424.0 kHz SVO Olympia Radio, Athens, Greece

8424.0 kHz UDK Murmansk Radio, Russian Federation

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 Idendity) code -
see page 95 ff. in our Radio Data Code Manual

5100.0 kHz VMC Charleville Meteo QLD, Australia

5100.0 kHz VMC Charleville Meteo QLD, Australia

8439.0 kHz PBB Dutch Navy Den Helder, Netherlands

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft B-1138 + HL8080 + N120FE + N126FE + N890FD + N5147A + N24979
DFB = Digital Flight Book
DFD = Digital Flight Data
FICON = Field Conditions
GOCC = Global Operations Control Center
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

4252.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil
SHIP/SYNOP decoding see page 299 ff. in our Radio Data Code Manual

518.0 kHz 9MG Georgetown Radio, Pinang Island, Malaysia

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft B-30AW + B-1546 + C-GHQY + HL7616 + N612UP + 9V-SMJ
DFB = Digital Flight Book
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCP = Facilities Contact Response
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

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft B-305G + N294NV + VN-A899 + flight SIA228
Flight parameters KIWA - KPVU ...
DFB = Digital Flight Book
DFD = Digital Flight Data
FCV = Flow Control Valve
PACK = Pressurization Air Conditioning Kit

17919.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-302T + B-6006 + B-6365 + B-8573 + N854FD + VN-A508
DFB = Digital Flight Book
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

8416.5 kHz UAT Moscow Radio, Russian Federation

17928.0 kHz ACARS/HFDL H17 Telde Air, Canary Islands, + aircraft B-2021 + flight CES717

11387.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft A7-ANH + F-HRBH + N621UP + flight QTR86E
PWI = Wind Forecast
WD350 = for FL350
WD390 = for FL390
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

518.0 kHz SVK Kerkyra Radio, Greece

4159.5 kHz XSQ Guangzhou Radio, China
New radiofax service, schedule see here

10093.0 kHz ACARS/HFDL H09 Barrow Air, Alaska, + flight CES534

13276.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft B-6361 + HL7740 + JA18KZ
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

16806.5 kHz NMF United States Coast Guard Boston MA, United States of America
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

9165.0 kHz HLL Soul Meteo, South Korea
DFS = Digital Forecast System

13342.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft B-1028 + B-2289 + B-2292 + B-6335 + B-8601 + EP-MME + VP-BEG + VP-BPU
Enroute weather ZYYJ - ZSQD ...
CFB = Centralized Fault Book
DFB = Digital Flight Book
DT = Destination, followed by the runway number
FLR = Flight Recorder
FN = Flight Number
FR = Fault Report
REQPRG = Request Flight Progress Report
SDCU = Smoke Detect Control Unit
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

12858.8 kHz 6WW French Navy Dakar, Senegal
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

12702.7 kHz CTA North Atlantic Treaty Organization Lisbon, Portugal

11318.0 kHz ACARS/HFDL H13 Santa Cruz Air, Bolivia, + aircraft EC-NBE + flight IBE684
EZE = Ezeiza

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!!!

4272.8 kHz FUJ French Navy Noumea, New Caledonia

11306.0 kHz ACARS/HFDL H16 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

8957.0 kHz ACARS/HFDL H13 Santa Cruz Air, Bolivia, + aircraft N297FE + flight FDX60

490.0 kHz CBV Valparaiso Radio, Chile
Actually transmitting on 489.95 kHz and with a shift of 100 instead of 170 Hz ...

5195.0 kHz DRA5 Kiel, Germany

6661.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft N589FE + N594FE
TOCG = Take Off Centre of Gravity
ZFCG = Zero Fuel Centre of Gravity

5655.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft A6-BLD + B-6085 + 9V-SHQ + 9V-SHV + 9V-SMK + 9V-SMO + 9V-SMR + 9V-SMW
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 OXJ Torshavn Radio, Faroe Islands, Denmark

518.0 kHz ESA Tallinn Radio, Estonia

12579.0 kHz NMO United States Coast Guard Honolulu, Hawaii

518.0 kHz XSG Shanghai Radio, China

13270.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft B-2289 + B-2411 + N851FD + PK-GFD + VN-A596 + VN-A622 + VN-A623
ADIRU = Air Data Inertial Reference Unit
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
TPIS = Tire Pressure Indicator System
WN = Warning Number
WXR = Weather Radar

8459.0 kHz NOJ United States Coast Guard Kodiak, Alaska

8459.0 kHz NOJ United States Coast Guard Kodiak, Alaska

8459.0 kHz NOJ United States Coast Guard Kodiak, Alaska

16907.5 kHz JFA Funabashi Fisheries Radio, Japan
NOAA satellite settings for JRC / FURUNO fish finder equipment
The date reads 3 5 18 = 2021 May 18
since the Japanese calendar year in the Reiwa Era is used here
Formula: Reiwa year + 2018 = Gregorian year
Tentative schedule see here

12711.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

8569.8 kHz FUV French Navy Jibuti, Djibouti
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

13315.0 kHz ACARS/HFDL H13 Santa Cruz Air, Bolivia, + aircraft N540LA
DFB = Digital Flight Book
DT = Destination, followed by the runway number
FMC = Flight Management Computer
ISFC = Indicated Specific Fuel Consumption
REQPRG = Request Flight Progress Report
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

8677.0 kHz CBV Valparaiso Radio, Chile

518.0 kHz L2G Argentinian Coast Guard Buenos Aires, Argentina

518.0 kHz L2T Argentinian Coast Guard Mar del Plata, Argentina

518.0 kHz SVH Iraklion Radio, Greece

7795.0 kHz JMH2 Tokyo Meteo, Japan

7795.0 kHz JMH2 Tokyo Meteo, Japan

13270.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft A7-BGA + B-30AP + B-30C7 + B-30FP + B-6323 + B-8595
TI2 = Terminal Information Request

10081.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft SU-GEN + VP-BAZ + VP-BTA + VP-BTO + 5A-ONO
ATSU = Air Traffic Service Unit
CFB = Central Fault Book
DFDR = Digital Flight Data Recorder System
FLR = Flight Recorder
FR = Fault Report
QAR = Quick Access Recording
REQPWI = Wind Forecast Request for FL 390

490.0 kHz CTV Portuguese Navy Lisbon, Portugal

6535.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft N606UP + 9V-SHF
PANC runway lengths ...
CDL = Configuration Deviation List
E/O GRAD = Engine Inoperative Approach Climb Gradient
RT = Right Turn, Heading ...

16806.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina

16806.5 kHz NMC United States Coast Guard San Francisco CA, United States of America

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!!!

518.0 kHz XVT Da Nang Radio, Viet Nam

6535.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft B-LXG + B-5943 + 9V-SGA + 9V-SMV
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
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

518.0 kHz XVS Ho Chi Minh City Radio, Viet Nam
Warnings still in force - received 131550Z MAY 2021

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

6460.0 kHz UFZ Vladivostok Radio SE, Russian Federation

8582.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

8582.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft N562AS + N597FE + N614FE + N859FD + VH-EXZ
DFD = Digital Flight Data
GOCC = Global Operations Control Center
TOCG = Take Off Centre of Gravity
ZFCG = Zero Fuel Centre of Gravity
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

4509.8 kHz Digital data station
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

10081.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft CN-RGX + VP-BER + VP-BEW + VP-BGC + VP-BTG + VP-BTK + VQ-BQD
DT = Destination, followed by the runway number
FN = Flight Number
REQPRG = Request Flight Progress Report
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

8416.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina
Warnings still in force - received 10 MAY 2021

490.0 kHz ICH Italian Coast Guard La Maddalena Island, Italy

8416.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina
Warnings still in force - received 09 MAY 2021

6535.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft A7-ALP + B-5729 + B-6446 + HS-XTH + N608UP + 9V-SHM
ECS = Environmental Control System
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

4209.5 kHz XVG Hai Phong Radio, Viet Nam

6535.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft B-6546 + N404KZ + 9V-SHE
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
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 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

21997.0 kHz ACARS/HFDL H13 Santa Cruz Air, Bolivia, + aircraft CC-CXK + HC-CSB + N542LA + N562FE + PR-YYC + 9V-SGC + flight UAL251
DS = Destination Airport
DT = Destination, followed by the runway number
FN = Flight Number
REQPRG = Request Flight Progress Report
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

518.0 kHz JNR Moji Radio, Japan

518.0 kHz ZBM Hamilton Harbour Radio, Bermuda

518.0 kHz NMN United States Coast Guard Norfolk VA, United States of America

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

11090.0 kHz KVM70 Honolulu Meteo, Hawaii

11090.0 kHz KVM70 Honolulu Meteo, Hawaii

518.0 kHz VAJ Canadian Coast Guard Prince Rupert BC, Canada
Haida Gwaii is the new native name for the former Queen Charlotte Islands

7795.0 kHz JMH2 Tokyo Meteo, Japan

518.0 kHz Puerto Montt Radio, Chile

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

10084.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft B-2411 + HL8259 + JA219A + N607UP
RJFS - RJTT ... A320 Manual says
"If either ADR 1 or 2 fails, ADR 3 can be manually selected."
ADR = Air Data Reference
CFB = Centralized Fault Book
FLR = Flight Recorder
FR = Fault Report

4209.5 kHz XVN Nha Trang Radio, Viet Nam

11387.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + flight FX0435

518.0 kHz VAE Canadian Coast Guard Tofino BC, Canada

518.0 kHz XSZ Dalian Radio, China
Warnings still in force - received 291850Z APR 2021

518.0 kHz Parangipettai Radio, India

5100.0 kHz VMC Charleville Meteo QLD, Australia

5100.0 kHz VMC Charleville Meteo QLD, Australia

8405.5 kHz Digital data station
Continuous pilot tone on the left ...

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

17919.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-30CK + B-18912 + JA828A + PK-GFP
Cruise parameters WAKK - WAJJ ...
DMC = Display Management Computer
DME = Distance Measuring Equipment
EIS = Electronic Instrument System
FLR = Flight Recorder
FR = Fault Report
TPEOD = Taipei Operational Department

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

490.0 kHz VCO Canadian Coast Guard Port Caledonia NS, Canada

15991.7 kHz Egyptian diplomatic station

16971.0 kHz JJC Kyodo Tsushin Tokyo, Japan

8416.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina
Missing space error by the transmitting station ...

8459.0 kHz NOJ United States Coast Guard Kodiak, Alaska

5100.0 kHz VMC Charleville Meteo QLD, Australia

518.0 kHz EAV Valencia Radio, Spain

518.0 kHz LFO Oerlandet Radio, Norway

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

8658.0 kHz JFX Kagoshima Fisheries Radio, Japan
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

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

8834.0 kHz ACARS/HFDL H08 Johannesburg Air, South Africa (Republic of), + aircraft B-6365 + flight QTR956
TI2 = Terminal Information Request

518.0 kHz NMQ United States Coast Guard Long Beach CA, United States of America

518.0 kHz Grimeton Radio, Sweden

518.0 kHz GCC Cullercoats Radio, United Kingdom

518.0 kHz Sandakan Radio, Sabah, Malaysia
Alamak! "Unforseen circumstances" read Philippine pirates!!
Remember Lahad Datu in 1986 ...
Warnings still in force - received 121500Z APR 2021

7396.7 kHz HSW64 Bangkok Meteo, Thailand

490.0 kHz IQM Mondolfo Radio, Italy

490.0 kHz OST Oostende Radio, Belgium

518.0 kHz VBR Canadian Coast Ferndale ONT, Canada

8658.0 kHz JFX Kagoshima Fisheries Radio, Japan
Japanese Coast Guard navigational warnings for NAVAREAs 10 11
The date reads 3 4 9 = 2021 April 9
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 UFL Vladivostok Radio SE, Russian Federation
Warnings still in force - received 081200Z APR 2021

11318.0 kHz ACARS/HFDL H13 Santa Cruz Air, Bolivia, + aircraft A7-BAM + B-1028 + B-2292 + D-AICF + PR-MAK
DOW = Dry Operating Weight
MAC... = Mean Aerodynamic Chord ...
SI = Supplementary Information
TIF = Trip Fuel
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 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

8040.0 kHz GYA Royal Navy London, United Kingdom

8040.0 kHz GYA Royal Navy London, United Kingdom

518.0 kHz L2N Argentinian Coast Guard Bahia Blanca, Argentina

8314.0 kHz Digital data station, Japan

4209.5 kHz XSG Shanghai Radio, China

5100.0 kHz VMC Charleville Meteo QLD, Australia

518.0 kHz JNB Naha Radio, Okinawa Island, Japan

518.0 kHz LZW Varna Radio, Bulgaria

518.0 kHz Magallanes Radio, Chile

13033.0 kHz FUF French Navy Fort de France, Martinique
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

518.0 kHz 4XO Haifa Radio, Israel

518.0 kHz Izmir Radio, Turkey

518.0 kHz Antalya Radio, Turkey

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

4227.5 kHz IDR Italian Navy Rome, Italy

13988.5 kHz JMH4 Tokyo Meteo, Japan

3622.5 kHz JMH Tokyo Meteo, Japan
The date below reads 3 3 19 17 = 2021 March 19 1700 Japan Time
since the Japanese calendar year in the Reiwa Era is used here
Formula: Reiwa year + 2018 = Gregorian year

518.0 kHz A9M Hamala Radio, Bahrain
Warnings still in force - received 121610Z MAR 2021
MENAS = Middle East Navigation Aids Service
MEGULITE = Middle East Gulf Lighting Service

518.0 kHz 5BA Nicosia Radio, Cyprus

8977.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + flight CCA575

4583.0 kHz DDK2 Hamburg Meteo, Germany
SHIP code see page 299 ff. in our Radio Data Code Manual

4209.5 kHz XVN Nha Trang Radio, Viet Nam
Warnings still in force - received 121620Z MAR 2021

16559.0 kHz XSG Shanghai Radio, China

16559.0 kHz XSG Shanghai Radio, China

518.0 kHz PBK Netherlands Coast Guard Ijmuiden, Netherlands

8454.8 kHz FUG French Navy Saissac, France

518.0 kHz JNL Otaru Radio, Japan

8302.0 kHz XSG Shanghai Radio, China

8302.0 kHz XSG Shanghai Radio, China

11039.0 kHz DDH9 Hamburg Meteo, Germany

490.0 kHz EAR La Coruna Radio, Spain

490.0 kHz EJM Irish Coast Guard Malin Head, Ireland

8459.0 kHz NOJ United States Coast Guard Kodiak, Alaska

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

518.0 kHz NMO United States Coast Guard Honolulu, Hawaii

518.0 kHz SUZ Serapeum Radio, Egypt

518.0 kHz TFX Siglufjördur Radio, Iceland

13570.0 kHz HLL5 Soul Meteo, South Korea

6589.0 kHz ACARS/HFDL H11 Panama City Air, Panama, + aircraft B-2092 + N108FE + N420LA + N538LA
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

6589.0 kHz ACARS/HFDL H11 Panama City Air, Panama, + flight UAL847

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

518.0 kHz Vakalpudi Radio, India

7795.0 kHz JMH2 Tokyo Meteo, Japan
TD = Tropical Depression = ex Tropical Storm AURING

518.0 kHz VCG Canadian Coast Guard Moisie QUE, Canada

4272.8 kHz FUJ French Navy Noumea, New Caledonia

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

9110.0 kHz NMF United States Coast Guard Boston MA, United States of America

3855.0 kHz DDH3 Hamburg Meteo, Germany

13315.0 kHz ACARS/HFDL H13 Santa Cruz Air, Bolivia, + aircraft PR-TYN
CFDS = Centralized Fault Display System
CIDS = Cabin Intercommunication Data System
DA = Departure Airport
DM = Time Stamp
DS = Destination Airport
ECAM = Electronic Centralized Aircraft Monitoring
FR = Fault Report
SDF = Simplified Directional Facility
WN = Warning Number

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

518.0 kHz UFO Kholmsk Radio SE, Russian Federation

518.0 kHz Byunsan Radio, South Korea

17958.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft B-LNX + ET-AUB + P4-KBF
The Vertical Rate Change Event is triggered
when the aircraft's vertical rate is either less or greater
than a parameter defined in the contract

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

2610.2 kHz FUO French Navy Toulon, France

490.0 kHz GNI Niton Radio, United Kingdom

490.0 kHz 9AS Split Radio, Croatia

6220.0 kHz IDN Italian Navy Napoli, Italy

518.0 kHz EJK Irish Coast Guard Valentia, Ireland

518.0 kHz 3VL Kelibia Radio, Tunisia

16135.0 kHz KVM70 Honolulu Meteo, Hawaii

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

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

7795.0 kHz JMH2 Tokyo Meteo, Japan

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

9780.0 kHz Radio New Zealand Pacific DRM transmission
decoded with the Kiwi-SDR extension feature

518.0 kHz JNX Kushiro Radio, Japan

518.0 kHz EQM Bushire Radio, Iran

518.0 kHz EQI Abbas Radio, Iran

518.0 kHz Gislovshammar Radio, Sweden

7880.0 kHz DDK3 Hamburg Meteo, Germany

6565.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-6543 + flight KAL284

9110.0 kHz NMF United States Coast Guard Boston MA, United States of America

8834.0 kHz ACARS/HFDL H08 Johannesburg Air, South Africa (Republic of), + aircraft SU-GEF + 5Y-CYB + flight CCA432 + QTR1CC + QTR3GG
EENT = End of Evening Nautical Twilight
GW = Gross Weight

5179.0 kHz RMP Commonwealth of Independent States Navy Kaliningrad, Russian Federation

8658.0 kHz JFX Kagoshima Fisheries Radio, Japan
Tentative schedule see here

5583.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft N513DZ
EET = ETOPS Entry Point
ETP = Equitime Point
EXP = Exit Point

5583.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft N513DZ
PFL = Planned Flight Level
PFR = Planned Fuel Remaining
PLND = Planned Time

518.0 kHz LGT Tjoeme Radio, Norway

518.0 kHz UHY Murmansk Radio, Russian Federation

518.0 kHz EAL Las Palmas Radio, Canary Islands

518.0 kHz RFA Astrakhan 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

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

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

11321.0 kHz ACARS/HFDL H08 Johannesburg Air, South Africa (Republic of), + aircraft B-60094 + S7-PTI + UR-CSU + flight CSZ959
Technical parameters FSIA - FAOR ...

518.0 kHz Grindavik Radio, Iceland

518.0 kHz Bjuroklubb Radio, Sweden

7396.7 kHz HSW64 Bangkok Meteo, Thailand

8302.0 kHz XSG Shanghai Radio, China

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

490.0 kHz UON Baku Radio, Azerbaijan

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

6349.8 kHz FUE French Navy Brest, France

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

3247.4 kHz ZKLF Auckland Meteo, New Zealand

7795.0 kHz JMH2 Tokyo Meteo, Japan

8503.9 kHz NMG United States Coast Guard New Orleans LA, United States of America

3855.0 kHz DDH3 Hamburg Meteo, Germany

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

8834.0 kHz ACARS/HFDL H08 Johannesburg Air, South Africa (Republic of), + aircraft UR-CSU + 9XR-WG

16559.0 kHz XSG Shanghai Radio, China

16559.0 kHz XSG Shanghai Radio, China

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

16067.7 kHz Ministry of Foreign Affairs Cairo, Egypt

8134.7 kHz 99901 Ministry of Foreign Affairs Cairo, Egypt, to 44406 Egyptian Embassy Delhi, India
Apart from decoding ADS-C and CPDLC messages such as
Periodic Reports, go2MONITOR displays meta-data such as
sender and recipient identifications, extracted from decoder result files

9046.7 kHz Ministry of Foreign Affairs Cairo, Egypt, to Egyptian Embassy Washington DC, United States of America
A pretty long one ...

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 2021 edition of our Perseus Frequency Database
now shows utility stations' callsigns as well!

8454.8 kHz FUG French Navy Saissac, France
New 2021 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 2021 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 21,000 (twenty one thousand!) fascinating screenshots are available on our unique Digital Data Decoder Screenshots USB Stick!