6559.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft N125FE + N321FE + N28987 + XA-VSG + 9V-SJC + flight AS0821 + ACA790
CDP = Computer Diagnostics Program
DFD = Digital Flight Data
EDP = Engine Display Panel
FWS = Flight Warning System
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

11318.0 kHz H13 HFDL Santa Cruz Air, Bolivia, + aircraft C-FGFZ + N45956 + flight GLG162
REQPRG = Request Flight Progress Report
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
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 airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
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

10027.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft B-324J + N101FE + RA73673 + UK32015 + 9V-SKT + flight APJ315
Increasing solar activity - and the ionosphere going crazy:
POSREP and engine data downlink for a UHHH - UNKL flight ... via Hawaii!
AGM = Miscellaneous Air/Ground Message
GOCC = Global Operations Control Center
Engine Cruise Report UHHH - UNKL ...
= 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

4209.5 kHz XSQ Guangzhou Radio, China
TD = Tropical Depression

4209.5 kHz XVN Nha Trang Radio, Viet Nam

4209.5 kHz XVG Hai Phong Radio, Viet Nam

10084.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft EI-MAE + JA884A + N342AV + 9V-SMD + flight MS0848
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
DT = Destination, followed by the runway number
FN = Flight Number
PER = Aircraft in-flight performance parameters
RESPWI/AC = FMS downlink acceptance and insertion of PWI = Predicted Wind uplink data
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

4209.5 kHz XVN Nha Trang Radio, Viet Nam
Warnings still in force - received 072020Z AUG 2022

4209.5 kHz XSV Tianjin Radio, China

6559.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft N468AS + N615UP + N617UP + N623UP + N77006 + 9V-SHS + flight DAL296
CFD = Centralized Fault Display
ECS = Environmental Control System
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

6565.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft HL7792 + N601FE + N617UP + RPC9936 + flight ANA428
CFD = Centralized Fault Display
DOI = Dry Operating Index
EHS = Enhanced Surveillance
ELS = Elementary Surveillance
FMS = Flight Management System
FPR = Flight Plan Route
OCC = Operations Control Center
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

8894.0 kHz H11 HFDL Panama City Air, Panama, + aircraft N741AV + PR-YYI + flight FX1283
MDPWI = Meteorological Data - Predicted Wind for FL 390 350

518.0 kHz Don Sak Radio, Thailand
BKK = Bangkok
005671000 is the station's MMSI (Maritime Mobile Service Identity) code
Warnings still in force - received 061300Z AUG 2022
See 5 AUG 2021 NAVTEX Panel Report

10081.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft CN-RGT + EC-NOM + JA16KZ + OE-LZF + RA73226 + RA73230 + SE-DMO + TC-FHC + flight QTR72G
Perfect OOOI ...
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
AGM = Miscellaneous Air/Ground Message
CCO = Operations Control Centre
DT = Destination, followed by the runway number
FN = Flight Number
GPU = Ground Power 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
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

10081.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft CN-RGS + JA16KZ + OE-LZD + RA73178 + RA73738 + RA73755 + SU-GCN + TC-FHC + 7T-VJB + flight UAL986
AGM = Miscellaneous Air/Ground Message
BJR = Bonjour
CDB = Commandant Du Bord
CFB = Centralized Fault Book
CFD = Centralized Fault Display
CFDS = Centralized Fault Display System
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
MDDU = Multipurpose Disk Drive Unit
MMR = Multi-Mode Receiver
WHC = Windshield Heat Computer
WN = Warning Number, followed by the Date-Time Group

8582.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

8582.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil
BBXX AAXX = SHIP SYNOP
= WMO code form for a report of surface observation

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

13351.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft A6-EVI + B-20AA + B-209X + C-FGDX + JA212A + N307FE + N574UP + UK32021 + 9V-SHS + flight AIC308
Increasing solar activity - and the ionosphere going crazy:
METAR uplink for a EVRA - UTTT flight ... via Auckland!
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
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
CFD = Centralized Fault Display
ECS = Environmental Control System
LLD = Large Lateral Deviation = 10 NM or more without ATC approval
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

13270.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft B-30CV + HL7626 + VN-A599 + 9V-SGB + flight KZR729
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
FF = Fuel Flow (for engines 1 + 2)
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
SDAC = System Data Acquisition Computer
TPIU = Tire Pressure Indicator Unit
WXR = Weather Radar
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

13270.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft B-1028 + B-6323 + B-8567 + VN-A501 + VN-A506 + 9V-SME + flight DP0417
Message A9 is incomplete ...
RWYCC = Runway Condition Code
TI2 = Terminal Information Request
Code figures for WSSS runways braking action - see e.g. here

8416.5 kHz VFF Canadian Coast Guard Iqaluit NUN, Canada

8416.5 kHz VFF Canadian Coast Guard Iqaluit NUN, Canada
MCTS = Marine Communications and Traffic Services

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

8416.5 kHz UAT Moscow Radio, Russian Federation

11090.0 kHz KVM70 Honolulu Meteo, Hawaii

11090.0 kHz KVM70 Honolulu Meteo, Hawaii

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

518.0 kHz JGC Yokohama Radio, Japan

21997.0 kHz H13 HFDL Santa Cruz Air, Bolivia, + aircraft N540LA + flight AVA212

490.0 kHz GCC Cullercoats Radio, United Kingdom

490.0 kHz EAV Valencia Radio, Spain

490.0 kHz GNI Niton Radio, United Kingdom

490.0 kHz Sellia Marina Radio, Italy

490.0 kHz 9AS Split Radio, Croatia

8939.0 kHz H10 HFDL Muan Air, South Korea, + aircraft B-2411 + EP-MMR + N127FE + N614UP + N888FD + flight CCA622 + HVN300
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
GOCC = Global Operations Control Center
REQPWI = Predicted Wind Request for FL 380 360 340 320
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 Muttam Point Radio, India

518.0 kHz Vengurla Point Radio, India
IMD = India Meteorological Department
PWPIWPWW... = dated 02082022...
PPAA = PILOT / PILOT MOBIL / PILOT SHIP
= WMO code form for an upper-wind report

4209.5 kHz XVN Nha Trang Radio, Viet Nam
Warnings still in force - received 021620Z AUG 2022

8912.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft CS-TKQ + N620UP + PR-TYO
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

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!!!

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

11318.0 kHz H13 HFDL Santa Cruz Air, Bolivia, + flight TAM368 + TAM382

11312.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft B-1168 + JA818A + N581UP + VN-A594 + 9V-SHS + flight ANA428
OCCS = Operations Control Centre Singapore
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 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 JNB Naha Radio, Okinawa Island, Japan

17919.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-308Z + B-1076 + B-6009 + B-8498 + JA821P + VT-IAS + flight D00001
Current aircraft radar echo in-flight information downlink ...
AGM = Miscellaneous Air/Ground Message
CFB = Centralized Fault Book
LGTM = Light Minus Turbulence = relatively weaker intensity
WN = Warning Number, followed by the Date-Time Group

8424.0 kHz SVO Olympia Radio, Athens, Greece

8939.0 kHz H10 HFDL Muan Air, South Korea, + aircraft B-304N + B-308N + B-2298 + B-6335 + B-6406 + B-7838 + B-8497 + RA73128 + flight UAL837
MDPWI = Meteorological Data - Predicted Wind for FL 310
TI2 = Terminal Information Request

8939.0 kHz H10 HFDL Muan Air, South Korea, + aircraft A6-EVI + B-305U + B-6893 + B-8550 + N614UP + 9V-SMZ + flight ANA834
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
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

9165.0 kHz HLL Soul Meteo, South Korea

16826.3 kHz XSQ Guangzhou Radio, China
CMA = China Meteorological Administration
New radiofax service, schedule see here

10093.0 kHz H09 HFDL Barrow Air, Alaska, + aircraft A6-EVI + A6-EVJ + JA382A + N625UP + RA73678 + flight SIA208
Mahalo = Thank you
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
Code figures for EFHK runways braking action - see e.g. here
CFD = Centralized Fault Display
ECS = Environmental Control System
HNLOC = Honolulu Operations Control
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

4209.5 kHz XSG Shanghai Radio, China

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

13276.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft JY-BAG + N575UP + YU-ARB + 86042S + flight QTR32J
Bobby71 is a Boeing KC-135R Stratotanker
TGT = Turbine Gas Temperature
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
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 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 TAH Istanbul Radio, Turkey

8191.0 kHz RMP Commonwealth of Independent States Navy Kaliningrad, Russian Federation

5100.0 kHz VMC Charleville Meteo QLD, Australia

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

11312.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft JA823P + N454PA + RA73677 + 9V-SCJ + flight ANA455
AGM = Miscellaneous Air/Ground Message
CDP = Computer Diagnostics Program
CFB = Centralized Fault Book
DA = Departure Airport
DFD = Digital Flight Data
DM = Time Stamp
DS = Destination Airport
EDP = Engine Display Panel
FWS = Flight Warning System
LGTM = Light Minus Turbulence = relatively weaker intensity
PACK = Pressurization Air Conditioning Kit
TS = Time Stamp
WN = Warning Number, followed by the Date-Time Group
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

10084.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft CC-BGF + JA883A + 9V-SJA + 9V-SMP + flight CSN504 + SIA218
CG = Center of Gravity
CI = Consistency Index
FEL = Fuel Estimation Left
FER = Fuel Estimation Right
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 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

10084.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft F-HSKA + JA883A + RPC8780 + 9V-SMP + flight AAR202 + AV0213
Increasing solar activity - and the ionosphere going crazy:
FMS downlink for a LFPO - FMEE flight ... via Auckland!
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
RESREQ/AK = FMS downlink acknowledgement of a REQFPN uplink
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 Basic or Periodic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy
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

10027.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft A6-AEJ + B-30DA + B-30DF + B-6185 + B-6217 + HL7210 + RPC8763 + 9V-SGB + flight PAL126
AGM = Miscellaneous Air/Ground Message
CFB = Centralized Fault Book
TI2 = Terminal Information Request
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

518.0 kHz 9MG Georgetown Radio, Pinang Island, Malaysia
NTM = Notice to Mariners
Warnings still in force - received 281920Z JUL 2022

10027.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft HZ-AQJ + 4R-ABQ + flight VIV317
Increasing solar activity - and the ionosphere going crazy:
METAR and TAF for a VOCI - OERK flight ... via Hawaii!

518.0 kHz HSA Bangkok Radio, Thailand
BKK = Bangkok
005671000 is the station's MMSI (Maritime Mobile Service Identity) code
Historic data out-dated 2014 ...

17958.0 kHz H10 HFDL Muan Air, South Korea, + aircraft B-305F + B-305X + B-6406 + B-6893 + HL7625 + JA216A + N510DN + N894FD + flight CSC824
AGM = Miscellaneous Air/Ground Message
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

8416.5 kHz UAT Moscow Radio, Russian Federation

13270.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft B-20CJ + B-30CK + B-325Z + JA893A + JY-AYV + N127FE + N847FD + VT-NAA + flight SIA511
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
AGM = Miscellaneous Air/Ground Message
RESPWI/AC = FMS downlink acceptance and insertion of PWI = Predicted Wind uplink data
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

10081.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft C-FITU + C-FRSE + CN-MAX + CN-MAY + CN-RGJ + HB-JOK + N573UP + N782AM + OH-LWR + OY-KAP + flight EI034J
AGM = Miscellaneous Air/Ground Message
CCO = 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 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

10081.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft CN-ROR + EI-GAL + EI-KGD + P4-KGA + RA73172 + RA73305 + RA73229 + RA73309 + RA73711 + RA73732 + flight LW94MD
AGM = Miscellaneous Air/Ground Message
CCO = Operations Control Centre

518.0 kHz VBR Canadian Coast Guard Ferndale ONT, Canada

10081.0 kHz H07 HFDL Shannon Air, Ireland, + flight AIC147 + CCA581

17928.0 kHz H17 HFDL Telde Air, Canary Islands, + aircraft CN-ROY + EC-MAJ + ES-SAA + HZ-NS37 + N624UP + 5A-WLB + flight ME0572
AFS = Auto Flight System
AGM = Miscellaneous Air/Ground Message
CCO = Operations Control Centre
CFB = Centralized Fault Book
CFD = Centralized Fault Display
CFDS = Centralized Fault Display System
CIDS = Cabin Intercommunication Data System
DA = Departure Airport
DFB = Digital Flight Book
DM = Time Stamp
DS = Destination Airport
ECS = Environmental Control System
ELAC = Elevator Aileron Computer
FADEC = Full Authority Digital Engine Control
FDU = Fire Detection Unit
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
IFE = In-Flight Entertainment
PHC = Probe Heat Computer
RWYCC = Runway Condition Code
SFCC = Slat Flap Control Computer
WN = Warning Number, followed by the Date-Time Group
Code figures for EBCI runways braking action - see e.g. here
Engine Cruise Report GCTS - EGCC ...
= 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 ...

17928.0 kHz H17 HFDL Telde Air, Canary Islands, + flight KNE111

9165.0 kHz HLL Soul Meteo, South Korea

9165.0 kHz HLL Soul Meteo, South Korea
STS = Severe Tropical Storm
TD = Tropical Depression
TS = Tropical Storm
TY = Typhoon

9165.0 kHz HLL Soul Meteo, South Korea

9165.0 kHz HLL Soul Meteo, South Korea

11354.0 kHz H09 HFDL Barrow Air, Alaska, + flight ACA036 + UAL78

11312.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft A7-ANP + B-209E + B-1128 + JA832A + N896FD + RA73677 + 9V-SMV + flight KAL214
AFS = Auto Flight System
CFB = Centralized Fault Book
FCU = Flight Control Unit
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
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 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

11306.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft HL7740 + HL7792 + JA893A + N853FD + flight HKC907
CFD = Centralized Fault Display
DFB = Digital Flight Book
TI2 = Terminal Information Request
Engine Cruise Report VIDP - RKSI ...
= 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 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 NMO United States Coast Guard Honolulu, Hawaii
BNM = Broadcast Notice to Mariners

13342.0 kHz H10 HFDL Muan Air, South Korea, + flight FDX523 + SIA34

4209.5 kHz XSG Shanghai Radio, China

13342.0 kHz H10 HFDL Muan Air, South Korea, + aircraft B-30AG + B-322X + B-6383 + EI-KGH + JA811A + flight CES989
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-300R + B-323A + B-6323 + B-6383 + B-6759 + PK-GNQ + flight CES563
DFB = Digital Flight Book
TI2 = Terminal Information Request

6463.8 kHz FUM French Navy Papeete, Tahiti, Polynesia (French)
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

11312.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft HL8362 + JA220A + JA884A + OD-MRR + 9V-SGD + 9V-SHO + flight CAL060
Increasing solar activity - and the ionosphere going crazy:
FPN for a OLBA - LTBS flight ... via Hawaii!
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
AA = Arrival Airport
DA = Departure Airport
FPN = Flight Plan Report downlink
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

11312.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + flight CSN210 + LAN801

10084.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft A6-BLL + HL8293 + JA922A + N293NV + N297AV + flight AAR202 + AC0033
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 airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
REQPWI = Predicted Wind Request for FL 410 400 390 380
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

13276.0 kHz H04 HFDL Riverhead Air NY, United States of America, + flight DAH270 + SAS909

13276.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft EC-NHM + G-VWOO + HL8293 + N292NV + N883FD + 7T-VJV + flight DAH270
DT = Destination, followed by the runway number
FN = Flight Number
GOCC = Global Operations Control Center
RDA = Radar Data Acquisition
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

8948.0 kHz H17 HFDL Telde Air, Canary Islands, + aircraft A6-XWA + A7-ANR + C-GOIH + CN-ROS + C-GTSZ + flight AIC149
BJR = Bonjour
CDB = Commandant Du Bord
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

11312.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft B-307K + C-FNOH + HL8293 + JA897A + N620UP + N859FD + RPC9937 + flight CES633
OCC = Operations Control Center
SCV = Surge Control Valve
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

10093.0 kHz H09 HFDL Barrow Air, Alaska, + aircraft A6-EUH + N889FD + flight FDX180
LLWS = Low-Level Wind Shear
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 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 JNX Kushiro Radio, Japan

9165.0 kHz HLL Soul Meteo, South Korea
GK2A = GEO KOMP Sat 2A = Geostationary Korea Multi Purpose Satellite

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

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

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

13342.0 kHz H10 HFDL Muan Air, South Korea, + aircraft B-30FT + B-324H + B-325V + JU-1021 + N632UP + P4-KDF + P4-KGA + flight CCA175
Enroute weather ZUGY - ZGCD ...
DFB = Digital Flight Book
MDPWI = Meteorological Data - Predicted Wind for FL 310
RESPWI/AK = FMS downlink acknowledgement of PWI = Predicted Wind uplink data

518.0 kHz Parangipettai Radio, India
IMD = India Meteorological Department

17919.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-1211 + B-2290 + B-8977 + B-18910 + HL7211 + HL7736 + JA895A + flight CES284
FSM = Flight System Message
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

6652.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-221U + N579UP + RA73673 + 9V-SHF + 9V-SMD + 9V-SMM + flight CES756
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
DFD = Digital Flight Data
DM = Time Stamp
DS = Destination Airport
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

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

5807.0 kHz ZKLF Auckland Meteo, New Zealand

10084.0 kHz H05 HFDL Auckland Air, New Zealand, + flight LP2465 + NCA263

16971.0 kHz JJC Kyodo Tsushin Tokyo, Japan
Received around 181600 JUL 2022 - LT printed here ...

8416.5 kHz NMO United States Coast Guard Honolulu, Hawaii

8416.5 kHz NMO United States Coast Guard Honolulu, Hawaii

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

8927.0 kHz H16 HFDL Barrigada Air, Guam, + flight ANA224 + ANA879

8424.0 kHz SVO Olympia Radio, Athens, Greece

13270.0 kHz H06 HFDL Hat Yai Air, Thailand, + flight ANA861 + KAL361

15025.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft CN-RGS + N628UP + RA73232 + RA73304 + flight UAE8UW
AGM = Miscellaneous Air/Ground Message
OCC = Operations Control Center
RWYCC = Runway Condition Code

15025.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft A6-EVL + EI-KGE + HZ-NS38 + RA73107 + flight FIN3ML
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
REQPWI = Predicted Wind Request for FL 360
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

11184.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft A6-EVL + A7-ANS + JY-AYS + RA73230 + RA73294 + RA73305 + RA73665 + RA73779 + flight UAE8ER
Perfect OOOI ...
LIDO = Lufthansa Integrated Dispatch Operation =
FMS software used by 180+ airlines worldwide
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
The codes of ACARS Message Labels can be found here

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

11184.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft RA73229 + RA73665 + RA73745 + RA73779 + flight SIA52
CFB = Centralized Fault Book
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
LPTC = Low Pressure Turbine Control
RA73665 is yet another Boeing 737-8ZS NG aircraft of Siberian Airlines
leased from Cramington Aviation Limited in Ireland and orginally registered
as VQ-BKV in Bermuda and "re-registered" (read: seized) since the start
of Putin's war against Ukraine under the new callsign series RA73...
Embarrassing, however, that these idiots forgot to re-program
the on-board data management and reporting system
that still shows VQ-BKV followed immediately by the Date-Time Group ;-)))
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 ...
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 ...

518.0 kHz Fuzhou Radio, China

6559.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft C-FGDX + JA877A + flight VIV104
MA = Missed Approach
MEL = Minimum Equipment List
OPLD = Operational Landing Distance
TPL = Touchdown Point Limit
WAT = Weight for Altitude and Temperature

12786.0 kHz NMC United States Coast Guard San Francisco CA, United States of America

12786.0 kHz NMC United States Coast Guard San Francisco CA, United States of America

12786.0 kHz NMC United States Coast Guard San Francisco CA, United States of America
CPHC = Central Pacific Hurricane Center
G = Gusts
TS = Tropical Storm

6559.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft N594FE + N624FE + flight FX1429
A NOTAM decoder can be found e.g. here
Code figures for PAFA runways braking action - see e.g. here
FICON = Field Conditions
GOCC = Global Operations Control Center

6559.0 kHz H01 HFDL San Francisco Air CA, United States of America, + flight DAL296 + KAL017

5655.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft JA883A + PK-GNR + 9V-SKU + 9V-SMC + 9V-SMV + flight FDX60
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 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

8425.5 kHz XSG Shanghai Radio, China
N/W = Nautical Warning
Characters in brackets denote the Latin alphabet
The four-figure groups without brackets
are Chinese ideographs

10060.0 kHz H10 HFDL Muan Air, South Korea, + aircraft B-320U + B-324J + B-5850 + B-6102 + B-18907 + RPC3501 + flight CCA140 + CCA682
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
AGM = Miscellaneous Air/Ground Message
CFB = Centralized Fault 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 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 JA801A + JA894A + JA898A + PK-BKF + RPC8612 + 9V-SHO + flight UAE1CR
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 9WW21 Miri Radio, Sarawak, Malaysia
Warnings still in force - received 141510Z JUL 2022!
Totally outdated meteorological warnings of several days ago ...
Alamak! Tak boleh tahan lah!

13270.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft B-1292 + B-6586 + B-8405 + PK-SAC + PK-SJG + PK-SJJ + 9V-SHU + flight CES994
AFS = Auto Flight System
CFB = Centralized Fault Book
CFDS = Centralized Fault Display System
DT = Destination, followed by the runway number
FMGC = Flight Management and Guidance Computer
FN = Flight Number
FR = Fault Report, followed by the Date-Time Group
TS = Time Stamp
FLR = Failure
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 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 XVG Hai Phong Radio, Viet Nam
Warnings still in force - received 121400Z JUL 2022

4209.5 kHz XVN Nha Trang Radio, Viet Nam

518.0 kHz XSZ Dalian Radio, China

5583.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft B-209E + C-FRTG + HL8293 + flight DAL41
MEL = Minimum Equipment List
Engine Cruise Report RKSI - YSSY ...
= 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 ...

10084.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft G-DHLE + RA73109 + VH-EXZ + 9V-SHG + flight CES758
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)
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FCO ADS = Facilities Contact ADS-C
FCO ATC = Facilities Contact CPDLC
FMH = Facilities Message Header = Flight Number
FPO = Facilities Current Position
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

16907.5 kHz JFA Funabashi Fisheries Radio, Japan

13988.5 kHz JMH4 Tokyo Meteo, Japan

10093.0 kHz H09 HFDL Barrow Air, Alaska, + aircraft CN-RGZ + JA15KZ + N605UP + N858FD + N868FD + flight TS0862
CCO = Operations Control Centre
CFD = Centralized Fault Display
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 SVH Iraklion Radio, Greece
Warnings still in force - received 090300Z JUL 2022

6559.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft B-30ES + HL8033 + JA17KZ + N420LA + N505DN + flight AS0809
BCV = Brake Control Valve
BLDV = Bleed Valve
CAI = Cowl Anti-Ice
DFB = Digital Flight Book
DP = Differential Pressure
ECS = Environmental Control System
EGT = Exhaust Gas Temperature
ESCV = Eleventh Stage Cooling Valve
FCNT = (DAR) Frame Counter
FF = Fuel Flow
FMC = Flight Management Computer
FMS = Flight Management System
FMV = Fuel Metering Valve
HPTCC = High Pressure Turbine Clearance Control
HPV = High Pressure Valve
ISFC = Indicated Specific Fuel Consumption
ISOV = Isolation Valve
LPT = Low Pressure Turbine
LPTCC = Low Pressure Turbine Clearance Control
OIP = Oil Pressure
OIQ = Oil Quantity
OIT = Oil Temperature
PS3 = Compressor Discharge Static Air Pressure
TLA = Thrust Lever Angle
VBV = Variable Bleed Valve
VSV = Vacuum Switching Valve
WAI = Wing Anti Ice

8894.0 kHz H11 HFDL Panama City Air, Panama, + aircraft N126FE + N542LA + PR-YYD + XA-AMR + XA-VSF + 9V-SGA + flight AVA208
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 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

11387.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft EC-NCK + N122FE + N132FE + N504DN + N852FD + flight VIR24M
DFD = Digital Flight Data
OCC = 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
The codes of ACARS Message Labels can be found here

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

11184.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft N76010 + N883FD + flight ANA238
FMS = Flight Management System
MRD = Maintenance Release Document
SR = Seat Row
DOWNLINK DELAYED - USE VOICE is the response to a non-emergency message
that is received with a timestamp that is between 2 and 10 minutes old
This procedure closes the request on the flight deck side
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
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 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

8948.0 kHz H17 HFDL Telde Air, Canary Islands, + aircraft B-1539 + C-GHPY + CN-RGG + CN-RGN + G-VSXY + HZ-NS32 + HZ-NS44 + N643GT + flight THY75D
Cruise data CYYZ - EGLL ...
CCO = Operations Control Centre
DT = Destination, followed by the runway number
FMS = Flight Management System
FN = Flight Number
REQPWI = Predicted Wind Request for FL 410 390 360
RESPWI/AC = FMS downlink acceptance and insertion of PWI = Predicted Wind uplink data
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
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 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

8834.0 kHz H08 HFDL Johannesburg Air, South Africa (Republic of), + flight ETD43R + QTR4J

8834.0 kHz H08 HFDL Johannesburg Air, South Africa (Republic of), + aircraft A6-EIS + SU-GDA + SU-GEA + SU-GEF + flight HY0278
Corrupted parsed data ...
CFB = Centralized Fault Book
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
SDU = Satellite Data Unit
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 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 L2C Argentinian Coast Guard Buenos Aires, Argentina

8416.5.0 kHz NMF United States Coast Guard Boston MA, United States of America
TS = Tropical Storm

518.0 kHz United States Coast Guard Savannah GA, United States of America

490.0 kHz XVT Da Nang Radio, Viet Nam

490.0 (!) kHz Myeik Radio, Myanmar
MNHC = Myanmar Naval Hydrographic Centre

518.0 kHz 3VL Kelibia Radio, Tunisia

518.0 kHz UDN Novorossiysk Radio, Russian Federation

21955.0 kHz H17 HFDL Telde Air, Canary Islands, + aircraft EC-NNY + G-GATU + JY-AYP + RA73758 + 5A-LAT + flight QTR705
AGM = Miscellaneous Air/Ground Message
CI = Consistency Index
CTOT = Calculated Take-Off Time (used for slot allocation)
DFB = Digital Flight Book
OFP = Operational Flight Plan
TI2 = Terminal Information Request
TOM = Take-Off Mass
Engine Cruise Report LTFM - HLLM ...
= 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 ...

6450.0 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 VAJ Canadian Coast Guard Prince Rupert BC, Canada
Haida Gwaii = ex Queen Charlotte Islands

518.0 kHz NOJ United States Coast Guard Kodiak, Alaska
BNM = Broadcast Notice to Mariners

10084.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft DQ-FJV + HL7638 + JA216A + N616UP + RPC9934 + flight UAL842
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
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

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

8894.0 kHz H11 HFDL Panama City Air, Panama, + aircraft LV-KAN + N120FE + N576UP + XA-VSG + flight AVA023
DFB = Digital Flight Book
FSM = Flight System Message
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
Engine Cruise Report SAEZ - 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 ...

518.0 kHz XVS Ho Chi Minh City Radio, Viet Nam

8416.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina

8416.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina

10063.0 kHz H11 HFDL Panama City Air, Panama, + aircraft CC-CWY + N873FD + XA-MFG + 9V-SMS + flight EVE858
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
SCV = Surge Control Valve
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 Balasore Radio, India

8942.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft B-LXL + B-308L + EC-MCU + EI-GAL + JA13KZ + flight UAE7TR
CFD = Centralized Fault Display
CTOT = Calculated Take-Off Time (used for slot allocation)
FSM = Flight System Message
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

490.0 kHz Porto Santo Radio, Madeira

10093.0 kHz H09 HFDL Barrow Air, Alaska, + aircraft N304UP + N858GT + 9M-MAC + flight ANA172 + SU1506
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 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 ZBM Hamilton Harbour Radio, Bermuda

518.0 kHz NMR United States Coast Guard San Juan, Puerto Rico
BNM = Broadcast Notice to Mariners

11030.0 kHz VMC Charleville Meteo QLD, Australia

11030.0 kHz VMC Charleville Meteo QLD, Australia

8927.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-5447 + G-VDIA + HL7736 + HL7793 + RPC9934 + 9V-SHI + 9V-SKY + flight NCA226
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
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
The codes of ACARS Message Labels can be found here

518.0 kHz ICH Italian Coast Guard La Maddalena Island, Italy

518.0 kHz SUZ Serapeum Radio, Egypt
BA = British Admiralty

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

16971.0 kHz JJC Kyodo Tsushin Tokyo, Japan
The second frame shows the news broadcast schedule in JST = Japan Standard Time

16971.0 kHz JJC Kyodo Tsushin Tokyo, Japan

6220.0 kHz IDN Italian Navy Napoli, Italy

9982.5 kHz KVM70 Honolulu Meteo, Hawaii
ITCZ = Inter-Tropical Convergence Zone

9982.5 kHz KVM70 Honolulu Meteo, Hawaii

7795.0 kHz JMH2 Tokyo Meteo, Japan

8431.0 kHz XSQ Guangzhou Radio, China

518.0 kHz L2T Argentinian Coast Guard Mar del Plata, Argentina

518.0 kHz L2G Argentinian Coast Guard Buenos Aires, Argentina

12750.0 kHz NMF United States Coast Guard Boston MA, United States of America
NCEP = National Centers for Environmental Prediction

12750.0 kHz NMF United States Coast Guard Boston MA, United States of America
NCEP = National Centers for Environmental Prediction

12750.0 kHz NMF United States Coast Guard Boston MA, United States of America
NCEP = National Centers for Environmental Prediction

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

21997.0 kHz H13 HFDL Santa Cruz Air, Bolivia, + aircraft HP1718 + N503DN + N506DN + PR-TYV + PR-YYI + flight ACA092
DFB = Digital Flight Book
ZFW + TOF = TOW - TIF = LAW
Engine Cruise Report SBGR - SBPJ ...
= 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 ...

10274.8 kHz Digital data station

11184.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft A6-BLP + G-VWOO + SE-RSC + 9H-GTS + 9V-SGD + flight U62453
DA = Departure Airport
DM = Time Stamp
DS = Destination Airport
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

8948.0 kHz H17 HFDL Telde Air, Canary Islands, + aircraft CC-BGL + C-GOIO + EC-MAJ + F-HTYI + N512DN + 9V-SGC + flight UAL106
CDP = Computer Diagnostics Program
CFB = Centralized Fault Book
CIDS = Cabin Intercommunication Data System
DFD = Digital Flight Data
DT = Destination, followed by the runway number
ECS = Environmental Control System
EDP = Engine Display Panel
FN = Flight Number
FR = Fault Report, followed by the Date-Time Group
FWS = Flight Warning System
SDF = Smoke Detection Function
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
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 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

17958.0 kHz H10 HFDL Muan Air, South Korea, + aircraft B-301F + B-2415 + B-8595 + JA809A + JA812A + JA819A + JA821A + JA899A + N574UP + flight QH1630
Enroute weather ZPPP - ZSNB ...
CFD = Centralized Fault Display
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
The codes of ACARS Message Labels can be found here

17919.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-221W + B-322R + B-2094 + B-8572 + JA15KZ + 9V-SHV + 9V-SHW + flight NCA226
The first part of the FOC message is missing ...
CFD = Centralized Fault Display
EPCS = Engine Propulsion Control System
FF = Fuel Flow (for engines 1 + 2)
FOC = Flight Operations Control
OCCS = Operations Control Centre Singapore

8927.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-20D7 + B-6442 + HL8293 + PK-GNH + PK-GNM + 9V-SCK + 9V-SHO + 9V-SHW + 9V-SMG + flight CES758
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
Code figures for RKSI runways braking action - see e.g. here
DFB = Digital Flight Book
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 XSG Shanghai Radio, China

12579.0 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina

8894.0 kHz H11 HFDL Panama City Air, Panama, + flight LAN622

8912.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft A7-ANI + EC-NLJ + EC-NOM + PR-TYN + flight VS109V
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 UFO Kholmsk Radio FE, Russian Federation

8912.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft C-FNNU + YU-ARB + flight AFR146 + AFR159
DFR = Daily Flight Report
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

17919.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-LRF + B-325P + PK-GFV + 9V-SMA + 9V-SMF + flight CCA410
Code figures for VHHH runways braking action - see e.g. here
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

4209.5 kHz XVG Hai Phong Radio, Viet Nam

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

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

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

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

12412.5 kHz NOJ United States Coast Guard Kodiak, Alaska

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

12412.5 kHz NOJ United States Coast Guard Kodiak, Alaska

12412.5 kHz NOJ United States Coast Guard Kodiak, Alaska
NCEP = National Centers for Environmental Prediction

12412.5 kHz NOJ United States Coast Guard Kodiak, Alaska
NCEP = National Centers for Environmental Prediction

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 ...

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

518.0 kHz SVL Limnos Radio, Greece

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

518.0 kHz LGT Tjoeme Radio, Norway

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

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 HZH Jeddah Radio, Saudi Arabia
First time monitored, unfortunately blocked by other stations scheduled 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

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

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

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

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

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

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

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

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

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

8486.3 kHz CTA Portuguese Navy Lisbon, Portugal

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

490.0 kHz OST Oostende Radio, Belgium

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

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), + 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

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

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 ...
N/W = Nautical Warning
Characters in brackets denote the Latin alphabet
The four-figure groups without brackets
are Chinese ideographs

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

12668.3 kHz FUG French Navy Saissac, France

5100.0 kHz VMC Charleville Meteo QLD, Australia

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

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

518.0 kHz GPK Portpatrick Radio, United Kingdom

518.0 kHz ESA Tallinn Radio, Estonia
PET = Saint Petersburg

7795.0 kHz JMH2 Tokyo Meteo, Japan

7795.0 kHz JMH2 Tokyo Meteo, Japan

5807.0 kHz ZKLF Auckland Meteo, New Zealand

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

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

17615.0 RCV Commonwealth of Independent States Navy Sevastopol', Ukraine

16953.3 kHz 6WW French Navy Dakar, Senegal

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

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

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

518.0 kHz Kyaukphyu Radio, Myanmar

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

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 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

518.0 kHz JNR Moji Radio, Japan

518.0 kHz LGQ Rogaland Radio, Norway

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

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

490.0 kHz Taganrog Radio, Russian Federation

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

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

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

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

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

5156.8 kHz TBB Turkish Navy Ankara, Turkey

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

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 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

3855.0 kHz DDH3 Hamburg Meteo, Germany

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

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

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
NHC = National Hurricane Center

17315.9 kHz NMG United States Coast Guard New Orleans LA, United States of America
NHC = National Hurricane Center

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

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

5100.0 kHz VMC Charleville Meteo QLD, Australia

5807.0 kHz ZKLF Auckland Meteo, New Zealand

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

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
NHC = National Hurricane Center

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

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

490.0 kHz Puerto Montt Radio, Chile

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

518.0 kHz Grimeton Radio, Sweden

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

12711.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

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

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