6565.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft B-32DZ + B-2412 + B-2480 + B-18915 + N38955 + RPC8397 + flight KAL072
Riding on the North Pacific Jet Stream east of Japan
at 577 knots = 1068+ kilometres per hour ...
AGM = Miscellaneous Air/Ground Message
FOD = Flight Operations Dispatch
GSE = Ground Support Equipment
PD = Profile Descent
• The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus data for navigational accuracy
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

518.0 kHz NOJ United States Coast Guard Kodiak, Alaska
BNM = Broadcast Notice to Mariners
LBB = Lighted Bell Buoy
LLNR = Light List Number
LT = Light

518.0 kHz VAJ Canadian Coast Guard Prince Rupert BC, Canada
Digby is a small island off Prince Rupert
Haida Gwaii = ex Queen Charlotte Islands

518.0 kHz NMW United States Coast Guard Astoria OR, United States of America
BNM = Broadcast Notice to Mariners
LLNR = Light List Number
LWP = Left Watching Properly

10084.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft B-LXO + B-5965 + VT-NAA + 9V-SJB + 9V-SJH + flight SIA633
• DELAY 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the pilot executing a clearance that was no longer valid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 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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

486.0 kHz XSG Shanghai Radio, China
Chinese teleprinter code after Latin alphabet header
Presumably local time used here since received at 1440 UTC ...
According to this NAVAREA 11 document, XSG uses indeed
transmitter identification character Q on both 518 and 486 kHz

10084.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft B-32JR + B-306Y + B-2094 + B-5965 + JA211P + RPC8610 + 5Y-CYD + 9V-CSZ + flight CSN 321
Solar cycle maximum - and the ionosphere going crazy:
METAR uplink for a HKJK - VABB flight across the Arabian Sea ... via Auckland!
LEMD - ZSPD cruise data ...
The four last figures of the second group are the time
The third group is the FL
AGM = Miscellaneous Air/Ground Message
CFD = Centralized Fault Data
FOD = Flight Operations Dispatch
OCC = Operations Control Centre
• DELAY 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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

4209.5 kHz NRV United States Coast Guard Apra Harbour, Guam
BNM = Broadcast Notice to Mariners
GU = Guam
RV = Research Vessel

4210.5 (not 4209.5!) kHz XSQ Guangzhou Radio, China
Characters in brackets denote the Latin alphabet
The four-figure groups without brackets
are Chinese ideographs
Presumably local time used here since received at 1320 UTC ...
N/W = Navigational Warning

10084.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft B-32JR + B-5965 + N518DZ + XA-AMX + 9V-SKP + 9V-SMQ + flight UAE1CR
MMMX - RJAA cruise data ...
The four last figures of the second group are the time
The third group is the FL
MMMX - RJAA step climb data ...
FMC = Flight Management Computer
FMS = Flight Management System
• The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

11184.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft CC-BGV + OE-LZC + SU-GEI + flight AIC165 + VIR127
go2MONITOR's superb Result Viewer has a post processor feature
running after the signal was received, extracting sender
and receiver IDs, position data, and more
For ADS-B signals, the post processing was adapted
to extract airplane positions and their addresses sent
DT = Destination, followed by the runway number
FN = Flight Number
• PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

518.0 kHz XVT Da Nang Radio, Viet Nam
AIS = Automatic Identification System

518.0 kHz Keating Point Radio, Andaman Islands, India
IMD = India Meteorological Department
INW = Indian Navigational Warning

11387.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft HL8389 + N502DN + N583UP + 9V-SGB + flight ETD19G
BTMS = Brake Temperature Monitoring System
E/O GRAD = Engine Inoperative Approach Climb Gradient
RCAM = Runway Condition Assessment Matrix
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response
FCA = Facilities Contact Advisory
FMH = Facilities Message Header = Flight Number
• The TP4 (= Transport Protocol Class 4) message
notifies the pilot of an ATSU identifier
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

518.0 kHz EQM Bushire Radio, Iran

11387.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft N524DN + flight VIV708
KATL - RKSI = 15½ hours ... Long time no move lah!
ZFW + BLOCK - TAXI = TOW - TRIP + RSV = LW
Perfect KATL - RKSI step climb parameters ...
PACD is an ETOPS emergency alternate airport
for trans-Pacific flights with RWY 15/33 = 3103 metres ...
CI = Consistency Index
EFOB = Estimated FOB
ZFWCG = Zero Fuel Weight Centre of Gravity

8912.0 kHz H04 HFDL Riverhead Air NY, United States of America, + flight AIC105 + FX5502

518.0 kHz CTV Portuguese Navy Lisbon, Portugal
CENCOMAR = Centro de Comunicacao de Dados e Cifra da Marinha

518.0 kHz EAR La Coruna Radio, Spain

518.0 kHz EAV Valencia Radio, Spain

518.0 kHz Hamburg Meteo, Germany
BLZ = Blitzfeuer
NCC = National Co-Ordination Centre
ODAS = Ocean Data Acquisition System
TSS = Traffic Separation Scheme

11030.0 kHz VMC Charleville Meteo QLD, Australia
RSMC = Regional Specialized Meteorological Centre

16806.5 kHz NMF United States Coast Guard Boston MA, United States of America

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

13312.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-32DE + B-5975 + B-8648 + HL8293 + PK-BKJ + RPC8609 + RPC8786 + flight ACA062 + CCA857
go2MONITOR's superb Result Viewer has a post processor feature
running after the signal was received, extracting sender
and receiver IDs, position data, and more
For ADS-B signals, the post processing was adapted
to extract airplane positions and their addresses sent
ATSU = Air Traffic Service Unit
CFB = Centralized Fault Book
DCDU = Datalink and Control Display Unit
DMC = Display Management Computer
DU = Display Unit
EIS = Electronic Instrument System
FLR = Failure
FOD = Flight Operations Dispatch
FR = Fault Report, followed by the Date-Time Group
LID = Landing Information Delivery
PDC = Pre-Departure Clearance
P/U = Pick Up
SD = System Display
• The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

23325.3 kHz Digital data station

4209.5 kHz XVN Nha Trang Radio, Viet Nam
Warnings still in force - received 072020Z JAN 2025

21934.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft CC-BBD + N725NK + RPC8780 + flight AMX002 + ANA113
CENAMER = Central American Air Navigation Agency in Tegucigalpa, Honduras, of
COCESNA = Corporación Centroamericana de Servicios de Navegación Aérea
• Engine Cruise Report RPLL - PHNL ...
= 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 ...
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

4209.5 kHz XVG Hai Phong Radio, Viet Nam

13324.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft C-FIVX + JA17KZ + N623UP + N625UP + N29961 + XA-AMX + XA-VVC + 9V-SGA + flight CCA162
Code figures for PANC runways braking action - see e.g. here
MMMX - RJAA cruise data ...
The four last figures of the second group are the time
The third group is the FL
DFB = Digital Flight Book
DFD = Digital Flight Data
DT = Destination, followed by the runway number
FN = Flight Number
RAIL = Runway Alignment Indicator Light
TI2 = Terminal Information Request
TS = Time Stamp
• PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

8677.0 kHz CBV Valparaiso Radio, Chile
GFS = Global Forecast System

6565.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft B-32AG + B-306D + B-7952 + C-FNOG + C-FNOH + HL8701 + 9V-SJC + flight ANA88
YBBN - CYVR L/R engine parameters ...
Code figures for ZYBS runways braking action - see e.g. here
CDP = Computer Diagnostics Program
DFB = Digital Flight Book
DFD = Digital Flight Data
EDP = Engine Display Panel
FWS = Flight Warning System
HPP = High Pressure Pump
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response
FCA = Facilities Contact Advisory
FMH = Facilities Message Header = Flight Number
• The Waypoint Change Event is triggered by a change
made to the Next, or the Next-plus-one waypoint
This change normally occurs due to normal waypoint sequencing by the FMS
The Next or Next-plus-one waypoint can be either an ATS waypoint or a pilot inserted waypoint
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

4298.0 kHz NOJ United States Coast Guard Kodiak, Alaska
Strange horizontal distortion despite fair signal quality ...

4298.0 kHz NOJ United States Coast Guard Kodiak, Alaska
Strange horizontal distortion despite fair signal quality ...

4298.0 kHz NOJ United States Coast Guard Kodiak, Alaska
Strange horizontal distortion despite fair signal quality ...
NCEP = National Centers for Environmental Prediction

518.0 kHz HSA Bangkok Radio, Thailand
005671000 is the station's MMSI (Maritime Mobile Service Identity) code

518.0 kHz Don Sak Radio, Thailand
005671000 is the station's MMSI (Maritime Mobile Service Identity) code
See 5 AUG 2021 NAVTEX Panel Report

518.0 kHz 9MG Georgetown Radio, Pinang Island, Malaysia
FPSO = Flowing Production Storage and Offloading
TSS = Traffic Separation Scheme
VTS = Vessel Traffic Service

17985.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft CN-MAY + CN-RAM + CN-RGC + CN-ROK + ER00007 + flight ANA224
AGM = Miscellaneous Air/Ground Message
BJR = Bonjour
CDB = Commandant Du Bord
CFB = Centralized Fault Book
DA = Departure Airport
DM = Time Stamp
DS = Destination Airport
FR = Fault Report, followed by the Date-Time Group
MMR = Multi-Mode Receiver
WHC = Windshield Heat Computer
WN = Warning Number, followed by the Date-Time Group
• The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus 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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

8677.0 kHz CBV Valparaiso Radio, Chile

8942.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft B-32EZ + B-2032 + CC-BGS + HZ-NS28 + HZ-NS73 + OE-LZF + RA73093 + RA73756 + TC-LOM + flight AIC129
ADIRU = Air Data Inertial Reference Unit
AFS = Auto Flight System
CFB = Centralized Fault Book
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
GPSSU = Global Positioning System Sensor Unit
IR = Inertial Reference
MMR = Multi-Mode Receiver
• The TP4 (= Transport Protocol Class 4) message
notifies the pilot of an ATSU identifier
• The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus data for navigational accuracy
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

21982.0 kHz H15 HFDL Muhurroq Air, Bahrain, + flight SIA23

518.0 kHz Veraval Radio, India
IFB = Indian Fishing Boat
IMD = India Meteorological Department
INW = Indian Navigational Warning

518.0 kHz Vengurla Point Radio, India
IMD = India Meteorological Department

5655.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft F-HTYG + JA834A + PK-GFC + VT-IAO + YI-ATC + flight UAE8V
ACMF = Aircraft Condition Monitoring Function
DFB = Digital Flight Book
• The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

12629.3 kHz XSQ Guangzhou Radio, China
CMA = China Meteorological Administration
MSA = Maritime Safety Administration

10084.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft B-2290 + C-FRTG + HL7793 + flight CES740 + UAE434
go2MONITOR's superb Result Viewer has a post processor feature
running after the signal was received, extracting sender
and receiver IDs, position data, and more
For ADS-B signals, the post processing was adapted
to extract airplane positions and their addresses sent
OMDB - YBBN = 14½ hours ... Long time no move lah!
DFR = Daily Flight Report
DT = Destination
FN = Flight Number
REQPRG = Request Flight Progress Report
TI2 = Terminal Information Request

13351.0 kHz H05 HFDL Auckland Air, New Zealand, + flight AIC220

6565.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft B-32GS + B-18905 + B-18907 + JA13VA + JA17KZ + JA208P + JA878A + N628UP + N967AM + N29978 + RPC8606 + flight ANA800
ZFW + TOF = TOW - TIF = LAW + UNDLD = MAX
RJAA - MMMX cruise data ...
The four last figures of the second group are the time
The third group is the FL
AGM = Miscellaneous Air/Ground Message
CFD = Centralized Fault Data
DFB = Digital Flight Book
DOI = Dry Operating Index
FLCN = Functional Logistic Control Number
LGTM = Light Minus Turbulence = relatively weaker intensity
LM = Light Minus Turbulence = relatively weaker intensity
OCC = Operations Control Centre
TIF = Trip Fuel
TOF = Take-Off Fuel
UNDLD = Underload
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response
FMH = Facilities Message Header = Flight Number
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

9165.0 kHz HLL Soul Meteo, South Korea

9165.0 kHz HLL Soul Meteo, South Korea

11306.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-MBT + HL7210 + HL8099 + N26909 + flight CES241
RPSP is a new airport replacing Tagbilaran (TAG) on Panglao Island, a favourite tourist destination ...
AGM = Miscellaneous Air/Ground Message
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

518.0 kHz XSG Shanghai Radio, China
MSA = Maritime Safety Administration

518.0 kHz UFO Kholmsk Radio FE, Russian Federation
Proliv = Strait
Zaliv = Bay

518.0 kHz UFL Vladivostok Radio SE, Russian Federation
Zaliv = Bay
Zaliv Petra Velikogo = Peter the Great Gulf

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

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

3585.0 kHz HLL8 Soul Meteo, South Korea

3585.0 kHz HLL8 Soul Meteo, South Korea

11905.0 (!?) kHz Hamburg Meteo, Germany

490.0 kHz GCC Cullercoats Radio, United Kingdom

15025.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft A6-BNF + A6-CJE + B-1113 + D-ALFU + G-VRIF + OE-LZF + TC-LGI + 9V-SML + flight DP6521
AA = Arrival Airport
AP = Approach type and runway number
DA = Departure Airport
FPN = Flight Plan Report downlink
OCC = Operations Control Centre
• The TP4 (= Transport Protocol Class 4) message
notifies the pilot of an ATSU identifier
• The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus data for navigational accuracy
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

8948.0 kHz H17 HFDL Telde Air, Canary Islands, + aircraft B-32D2 + CN-RGS + EC-NSC + 9V-SGB + flight NK2061
CDP = Computer Diagnostics Program
CFB = Centralized Fault Book
DFD = Digital Flight Data
EDP = Engine Display Panel
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
FWS = Flight Warning System
GPSSU = Global Positioning System Sensor Unit
HPP = High Pressure Pump
IR = Inertial Reference
MMR = Multi-Mode Receiver
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response
FMH = Facilities Message Header = Flight Number
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

518.0 kHz 3BM Port Louis Radio, Mauritius
ITCZ = Inter-Tropical Convergence Zone
TOO = Time of Observation

8942.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft B-221F + B-2045 + YR-WIN + 7T-VJV + flight AT811D
CFB = Centralized Fault Book
ECU = Electronic Control Unit
FCMC = Fuel Control and Monitoring Computer
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
MDPWI = Meteorological Data - Predicted Wind for FL 370 350
PSCU = Proximity Switch Control Unit
TPIS = Tire Pressure Indicator System
WN = Warning Number, followed by the Date-Time Group

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

4209.5 kHz XSQ Guangzhou Radio, China
MSA = Maritime Safety Administration

16953.3 kHz 6WW French Navy Dakar, Senegal

10093.0 kHz H09 HFDL Barrow Air, Alaska, + aircraft HL8387 + HL8701 + N846FD + PS-LAA
PACD is an ETOPS emergency alternate airport
for trans-Pacific flights with RWY 15/33 = 3103 metres ...
AGM = Miscellaneous Air/Ground Message
CFD = Centralized Fault Data
OCC = Operations Control Centre
• The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
• DELAY 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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

8424.0 kHz SVO Olympia Radio, Athens, Greece

21937.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft N522DZ + N607UP + N877FD + flight ANA800
Code figures for PANC runways braking action - see e.g. here
A NOTAM decoder can be found e.g. here
BURN + ALTN + 10 PCT + RESV = MIN + CONT/DLA = EST
CFD = Centralized Fault Data
ECS = Environmental Control System
FICON = Field Conditions
FMS = Flight Management System
GOCC = Global Operations Control Center
RDA = Route Data Assessment
RDC = Route Data Calculation
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

8416.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina
RDP = Rio de la Plata

8416.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina

21997.0 kHz H13 HFDL Santa Cruz Air, Bolivia, + aircraft CN-RGC + D-AUSZ + EI-HPB + N647AV + PR-YYJ + flight AVA009
D-AUSZ is a continuous shuttle service EHAM - SMJP - EHAM
by Universal Sky Carrier's Airbus A340-600 on wet lease for Surinam Airways
• Engine Cruise Report SKBO - SKCG ...
= 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 ...
• The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus 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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

21997.0 kHz H13 HFDL Santa Cruz Air, Bolivia, + aircraft HC-CRU + HP1714 + N963AV + N967AM + PR-TYI + XA-ADG + flight AVA229 + AVR481
go2MONITOR's superb Result Viewer has a post processor feature
running after the signal was received, extracting sender
and receiver IDs, position data, and more
For ADS-B signals, the post processing was adapted
to extract airplane positions and their addresses sent
MMMX - SCEL and MMMX - SAEZ cruise data ...
The four last figures of the second group are the time
The third group is the FL
DFB = Digital Flight Book
DT = Destination, followed by the runway number
FN = Flight Number
SITA = Societe Internationale de Telecommunication Aeronautique
TI2 = Terminal Information Request
• 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

17928.0 kHz H17 HFDL Telde Air, Canary Islands, + aircraft CN-RGC + CN-RGZ + D-AUSZ + G-VRIF + HZ-NS55 + N622UP + YR-KID + 9V-SMC + flight MSR956
AMDAR = Aircraft Meteorological Data Relay EHAM - SMJP
D-AUSZ is a continuous shuttle service EHAM - SMJP - EHAM
by Universal Sky Carrier's Airbus A340-600 on wet lease for Surinam Airways
AA = Arrival Airport
AGM = Miscellaneous Air/Ground Message
AP = Approach type and runway number
BJR = Bonjour
CDB = Commandant Du Bord
CFD = Centralized Fault Data
DA = Departure Airport
ECS = Environmental Control System
FPN = Flight Plan Report downlink
REQFPN = FPL report request uplink
REQPWI = Predicted Wind Request for FL 410 390 360
RESREQ/AK = FMS downlink acknowledgement of a REQFPN uplink
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

13270.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft B-MBQ + B-302H + B-327E + N623UP + P4-IFD + 9V-SKW + flight SIA23
AGM = Miscellaneous Air/Ground Message
TI2 = Terminal Information Request
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

12579.0 kHz UAT Moscow Radio, Russian Federation
Proliv = Strait

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

13270.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft B-32F8 + B-32JR + B-209E + B-8948 + F-HTYS + HS-XTH + PK-SJZ + VN-A515 + flight SIA719
PASY is an ETOPS emergency alternate airport in the Alaskan Aleutian Islands
for trans-Pacific flights ... RWY 10/28 is 3049 metres long
CFB = Centralized Fault Book
DA = Departure Airport
DM = Time Stamp
DS = Destination Airport
DT = Destination, followed by the runway number
FN = Flight Number
FR = Fault Report, followed by the Date-Time Group
TI2 = Terminal Information Request
TPIS = Tire Pressure Indicator System
TS = Time Stamp
• The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
• The Altitude Range Change Event is triggered
when the aircraft's altitude exceeds the altitude ceiling
or floor defined in the contract by the ground system
• 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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

13312.0 kHz H15 HFDL Muhurroq Air, Bahrain, + aircraft ET-AUB enroute HAAB - ZBAA
go2MONITOR's superb Result Viewer allows easy selection of MIAM
out of hundreds of decoded messages by means of advanced filter settings ...
go2MONITOR perfectly re-assembles and decodes MIAM CORE data ...
These are often messages in Airbus' XML format
Sensor parameters ...
MIAM = Media Independent Aircraft Message
PDU = Pilot Display Unit

13312.0 kHz H15 HFDL Muhurroq Air, Bahrain, + aircraft A4O-DF + ET-AUB + ET-AVD + F-HSKA + VT-IFZ + 5Y-KZE + 9V-SMU + flight ETD6QA
CFB = Centralized Fault Book
ECAM = Electronic Centralized Aircraft Monitoring
EIS = Electronic Instrument System
FLR = Failure
FMS = Flight Management System
FQI = Fuel Quantity Indication
FR = Fault Report, followed by the Date-Time Group
FWC = Flight Warning Computer
REQFPN = FPL report request uplink
RESREQ/AK = FMS downlink acknowledgement of a REQFPN uplink
TI2 = Terminal Information Request
WN = Warning Number, followed by the Date-Time Group
• The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

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

518.0 kHz LGQ Rogaland Radio, Norway

518.0 kHz JNB Naha Radio, Okinawa Island, Japan
KDDI = Kokusai Denshin Denwa Ido

518.0 kHz Santa Marta Radio, Colombia

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

13312.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-32G2 + N857FD + flight ANA859 + CES551
go2MONITOR's superb Result Viewer has a post processor feature
running after the signal was received, extracting sender
and receiver IDs, position data, and more
For ADS-B signals, the post processing was adapted
to extract airplane positions and their addresses sent
• The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

6652.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-1113 + N120FE + flight ABB870
FSM = Flight System Message
TI2 = Terminal Information Request

518.0 kHz XSL Fuzhou Radio, China
Warnings still in force - received 291420Z DEC 2024
According to this NAVAREA 11 document, XSL uses indeed
transmitter identification character O on both 518 and 486 kHz

6646.0 kHz H09 HFDL Barrow Air, Alaska, + flight DAL188

518.0 kHz IQM Mondolfo Radio, Italy
VTS = Vessel Traffic Service

10027.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft B-32F8 + HL8259 + N517DZ + N590FE + N890FD + flight VOI327
PASY is an ETOPS emergency alternate airport in the Alaskan Aleutian Islands
for trans-Pacific flights ... RWY 10/28 is 3049 metres long
Code figures for PANC runways braking action - see e.g. here
AGM = Miscellaneous Air/Ground Message
EDR = Eddy Dissipation Rate - see here
TI2 = Terminal Information Request
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

7535.0 kHz VMW Wiluna Meteo WA, Australia
MSLP = Mean Sea Level Pressure

7535.0 kHz VMW Wiluna Meteo WA, Australia

7535.0 kHz VMW Wiluna Meteo WA, Australia

10084.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft VH-FKX + flight LAN805
Perfect CPDLC ...
AGM = Miscellaneous Air/Ground 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
FCA = Facilities Contact Advisory
FCP = Facilities Contact Response
FMH = Facilities Message Header = Flight Number
FRP = Facilities Response
• The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus 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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

10084.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft B-20E8 + B-221U + B-2735 + EC-NUI + JA821P + RA73680 + RA73715 + 5Y-CYA + flight 2P2821
EC-NUI is one of two Wamos Air on wet lease for Philippine Airlines
for the daily RPLL - YMML - RPLL and RPLL - YSSY - RPLL shuttle ...
Solar cycle maximum - and the ionosphere going crazy:
METAR uplink for a HKJK - VABB flight across the Arabian Sea ... via Auckland!
AFS = Auto Flight System
AGM = Miscellaneous Air/Ground Message
CFB = Centralized Fault Book
DMC = Display Management Computer
DT = Destination, followed by the runway number
ECAM = Electronic Centralized Aircraft Monitoring
EIS = Electronic Instrument System
FLR = Failure
FN = Flight Number
FR = Fault Report, followed by the Date-Time Group
IR = Inertial Reference
LS = Landing System
MMR = Multi-Mode Receiver
PB = Parking Bay
TS = Time Stamp
WN = Warning Number, followed by the Date-Time Group
• The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
• 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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

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

4209.5 kHz XVN Nha Trang Radio, Viet Nam
Warnings still in force - received 271620Z DEC 2024

21982.0 kHz H15 HFDL Muhurroq Air, Bahrain, + aircraft B-6941 + RA73153 + VT-IAR + flight UAE73
EENT = End of Evening Nautical Twilight
ETP = Equitime Point

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

9110.0 kHz NMF United States Coast Guard Boston MA, United States of America
NCEP = National Centers for Environmental Prediction
NHC = National Hurricane Center
OPC = Ocean Prediction Center
WPC = Weather Prediction Center

8942.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft HZ-NS47 + JY-AYT + RA73151 + UK78701 + flight SU0521
So the Russians use Airbus' XML failure report system but they don't have MIAM ...
AAP = Aft Attendant Panel
CFB = Centralized Fault Book
CFDS = Centralized Fault Display System
CIDS = Cabin Intercommunication Data System
CMS = Cabin Management System
DA = Departure Airport
DM = Time Stamp
DS = Destination Airport
EOR = End of Report
FAP = Flight Attendant Panel
FDE = Fault Detection and Exclusion
FR = Fault Report, followed by the Date-Time Group
FRC = Fault Reporting Code
MSN = Manufacturer's Serial Number
ROP = Runway Overrun Protection
ROW = Runway Overrun Warning
RTR = Ready To Receive
TPIS = Tire Pressure Indicator System
WN = Warning Number, followed by the Date-Time Group

5655.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft VN-A892 enroute VVNB - LFPG
go2MONITOR's superb Result Viewer allows easy selection of MIAM
out of hundreds of decoded messages by means of advanced filter settings ...
go2MONITOR perfectly re-assembles and decodes MIAM CORE data ...
These are often messages in Airbus' XML format
ADIRU = Air Data Inertial Reference Unit
AESS = Aircraft Environment Surveillance System
CIDS = Cabin Intercommunication Data System
CMS = Cabin Management System
FDE = Fault Detection and Exclusion
MIAM = Media Independent Aircraft Message
MSN = Manufacturer's Serial Number
PDU = Pilot Display Unit
RA = Radio Altimeter
RTR = Ready To Receive

5655.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft A7-ALL + B-MBS + B-324T + EC-MAJ + DQ-FJW + N110FE + 9V-SHM + flight ID6012
AGM = Miscellaneous Air/Ground Message
TI2 = Terminal Information Request
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response
FCO ADS = Facilities Contact ADS-C
FCO ATC = Facilities Contact CPDLC
FMH = Facilities Message Header = Flight Number
FPO = Facilities Current Position
• The TP4 (= Transport Protocol Class 4) message
notifies the pilot of an ATSU identifier
• 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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

518.0 kHz UGE Arkhangelsk Radio, Russian Federation
Zaliv = Bay

518.0 kHz LZW Varna Radio, Bulgaria

11184.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft A6-EVG + B-2088 + B-5951 + B-8360 + RA73153 + flight KZR885
Code figures for EDDP LFPG runways braking action - see e.g. here
ADIRU = Air Data Inertial Reference Unit
CFB = Centralized Fault Book
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
GPSSU = Global Positioning System Sensor Unit
IR = Inertial Reference
ISIS = Integrated Standby Instrument System
MMR = Multi-Mode Receiver
RSCD = Runway Surface Condition
RWYCC = Runway Condition Code
WN = Warning Number, followed by the Date-Time Group
TI2 = Terminal Information Request
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

4196.8 kHz Digital data station

8425.5 kHz XSG Shanghai Radio, China
Characters in brackets denote the Latin alphabet
The four-figure groups without brackets
are Chinese ideographs
Presumably local time used here since received at 1350 UTC ...

21955.0 kHz H17 HFDL Telde Air, Canary Islands, + aircraft EC-NGT + SU-GCN + flight CRL984
DT = Destination, followed by the runway number
FN = Flight Number
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response
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 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
• PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN
• The Periodic Contract is a report sent every ... minutes
It specifies the reporting rate at which the avionics is required
to assemble and downlink the requested information to the ground system
The minimum reporting rate is usually not greater than every 14 minutes
but can vary to suit the need of the ground station
This procedure allows longitudinal and lateral separation of aircraft
in oceanic areas to be reduced to 30 nautical miles
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

518.0 kHz VAE Canadian Coast Guard Tofino BC, Canada
Amphitrite Point Lighthouse is 40 kilometres south of Tofino ...

8416.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina
RDP = Rio de la Plata

17928.0 kHz H17 HFDL Telde Air, Canary Islands, + flight UAE84N

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

518.0 kHz HZH Jeddah Radio, Saudi Arabia
Warnings still in force - received 232310Z DEC 2024

21955.0 kHz H17 HFDL Telde Air, Canary Islands, + aircraft C-FNOH + CN-RGU + YR-KID + ZS-SXM + flight THY10J
AGM = Miscellaneous Air/Ground Message
CCO = Operations Control Centre
CFB = Centralized Fault Book
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
VSC = Vacuum System Controller
WN = Warning Number, followed by the Date-Time Group
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 airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
• The TP4 (= Transport Protocol Class 4) message
notifies the pilot of an ATSU identifier
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

490.0 kHz UWT Taganrog Radio, Russian Federation
ROSHYDROMET = Russian Federal Service for Hydrometeorology and Environmental Monitoring

21955.0 kHz H17 HFDL Telde Air, Canary Islands, + aircraft C-GOIO + CN-RGK + CN-ROZ + F-HRBE + F-HZOE + 5Y-KCA + flight CRL984 + QTR755
go2MONITOR's superb Result Viewer has a post processor feature
running after the signal was received, extracting sender
and receiver IDs, position data, and more
For ADS-B signals, the post processing was adapted
to extract airplane positions and their addresses sent
• Engine Cruise Report CYUL - TFFR ...
= 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 ...
AGM = Miscellaneous Air/Ground Message
CCO = Operations Control Centre
DFB = Digital Flight Book
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

518.0 kHz Bjuroklubb Radio, Sweden

11086.5 kHz GYA Royal Navy London, United Kingdom

13270.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft B-32AQ + B-5298 + B-6742 + PK-GMP + TC-LGE + VN-A515 + 9V-SHO + flight AIC308 + CSC820
go2MONITOR's superb Result Viewer has a post processor feature
running after the signal was received, extracting sender
and receiver IDs, position data, and more
For ADS-B signals, the post processing was adapted
to extract airplane positions and their addresses sent
AGM = Miscellaneous Air/Ground Message
CFB = Centralized Fault Book
DA = Departure Airport
DM = Time Stamp
DS = Destination Airport
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
FSM = Flight System Message
ROP = Runway Overrun Protection
ROW = Runway Overrun Warning
TPIS = Tire Pressure Indicator System
WN = Warning Number, followed by the Date-Time Group
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

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

8658.0 kHz JFC Misaki Fisheries Radio, Japan
Japanese Coast Guard navigational warnings for NAVAREAs 10 / 11 ...
MICS = Maritime Information and Communication System
The date reads 6 12 22 = 2024 December 22
since the Japanese calendar year in the Reiwa Era is used here
Formula: Reiwa year + 2018 = Gregorian year

7795.0 kHz JMH2 Tokyo Meteo, Japan

21931.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft A7-ANK + JY-BAC + N964AM + flight QTR8J
LFPG - MMMX cruise data ...
The four last figures of the second group are the time
The third group is the FL
AGM = Miscellaneous Air/Ground Message
• The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus 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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

518.0 kHz A9M Hamala Radio, Bahrain
BA = British Admiralty
MENAS = Middle East Navigation Aids Service
MEGULITE = Middle East Gulf Lighting Service

518.0 kHz SUK Quseir Radio, Egypt
BA = British Admiralty

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

6559.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft B-32F8 + B-2076 + N573FE + flight G40651 + VOI142
go2MONITOR's superb Result Viewer has a post processor feature
running after the signal was received, extracting sender
and receiver IDs, position data, and more
For ADS-B signals, the post processing was adapted
to extract airplane positions and their addresses sent
BSM = Brake System Monitoring
TI2 = Terminal Information Request
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

518.0 kHz JNX Kushiro Radio, Japan

16826.3 kHz XSQ Guangzhou Radio, China
CMA = China Meteorological Administration
MSA = Maritime Safety Administration

10084.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft B-305X + B-18917 + EZ-F430 + N516DN + N857FD + flight HVN778
FSM = Flight System Message
GOC = Global Operations Control
MX = Maintenance
TI2 = Terminal Information Request
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

10084.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft B-223P + B-2726 + HZ-NS29 + N26970 + RPC9934 + flight SIA247
CFB = Centralized Fault Book
DB = Dash Board
DT = Destination, followed by the runway number
EOR = End of Report
FDE = Fault Detection and Exclusion
FRC = Fault Reporting Code
PB = Parking Bay
REQPRG = Request Flight Progress Report
TOMC = Technical Operations Maintenance Control
• The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
• 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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

10084.0 kHz H05 HFDL Auckland Air, New Zealand, + aircraft N26970 + flight SIA214
KIAH - YSSY cruise data ...
The four last figures of the second group are the time
The third group is the FL
POSREP = POS, WP, ATO, FL, next+1 WP, ETO, next+2 WP,
ETO, temperature, wind, FOB or SOG, time stamp, date, HEX serial
DFB = Digital Flight Book
ETE = Estimated Time Elapsed
FPR = Flight Plan Route
TI2 = Terminal Information Request
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response
FCA = Facilities Contact Advisory
FCO ADS = Facilities Contact ADS-C
FCO ATC = Facilities Contact CPDLC
FMH = Facilities Message Header = Flight Number
FPO = Facilities Current Position
FRP = Facilities Response
• The 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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

3585.0 kHz HLL8 Soul Meteo, South Korea

6559.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft B-222Z + HP1525 + N337QT + N965AM + flight AS0682
AGM = Miscellaneous Air/Ground Message
CFB = Centralized Fault Book
DB = Dash Board
DCA = Data Communication Architecture
DFDRS = Digital Flight Data Recorder System
EFOB = Estimated FOB
FDE = Fault Detection and Exclusion
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
FRC = Fault Reporting Code
RD = Redispatch
WN = Warning Number, followed by the Date-Time Group

518.0 kHz Grimeton Radio, Sweden

518.0 kHz ESA Tallinn Radio, Estonia

8416.5 kHz LGS Svalbard Radio, Spitsbergen, Norway
002570000 is the station's MMSI (Maritime Mobile Service Identity) code

3622.5 kHz JMH Tokyo Meteo, Japan

3622.5 kHz JMH Tokyo Meteo, Japan

6565.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft N615UP + N624UP + flight CES586 + SAS931
go2MONITOR's superb Result Viewer has a post processor feature
running after the signal was received, extracting sender
and receiver IDs, position data, and more
For ADS-B signals, the post processing was adapted
to extract airplane positions and their addresses sent
PASY is an ETOPS emergency alternate airport in the Alaskan Aleutian Islands
for trans-Pacific flights ... RWY 10/28 is 3049 metres long
Code figures for PANC runways braking action - see e.g. here
AGM = Miscellaneous Air/Ground Message
E/O GRAD = Engine Inoperative Approach Climb Gradient
RCAM = Runway Condition Assessment Matrix
TI2 = Terminal Information Request

518.0 kHz XSQ Guangzhou Radio, China
MSA = Maritime Safety Administration
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 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!!!

490.0 kHz GNI Niton Radio, United Kingdom

13324.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + aircraft OH-LWR enroute RJTT - EFHK
go2MONITOR's superb Result Viewer allows easy selection of MIAM
out of hundreds of decoded messages by means of advanced filter settings ...
go2MONITOR perfectly re-assembles and decodes MIAM CORE data ...
These are often messages in Airbus' XML format
MIAM = Media Independent Aircraft Message
PDU = Pilot Display Unit

10555.0 kHz VMW Wiluna Meteo WA, Australia
MSLP = Mean Sea Level Pressure

13270.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft B-32AA + B-305X + B-307J + B-6362 + HL7632 + HS-XTH + JA212A + JA212P + JA216A + N843FD + 9V-SHU + flight CES630
AGM = Miscellaneous Air/Ground Message
CDP = Computer Diagnostics Program
CFD = Centralized Fault Data
DFD = Digital Flight Data
EDP = Engine Display Panel
FWS = Flight Warning System
LGTM = Light Minus Turbulence = relatively weaker intensity
LGTP = Light Plus Turbulence = relatively greater intensity
TI2 = Terminal Information Request
• The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

11387.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft HL8388 + LV-KAN + 9V-SGB + 1502 + flight NK0417
TI2 = Terminal Information Request
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response
FCA = Facilities Contact Advisory
FCP = Facilities Contact Response
FMH = Facilities Message Header = Flight Number
• The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
• DELAY 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 TP4 (= Transport Protocol Class 4) message
notifies the pilot of an ATSU identifier
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

6661.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft B-325J + C-GWUU + G-VLDY + N840FD + OY-KAS + XA-VRX + XA-VVB + flight ACA966
AGM = Miscellaneous Air/Ground Message
CI = Consistency Index
GOCC = Global Operations Control Center
REQPWI = Predicted Wind Request for FL 410 390 360 340
T/A = Time of Arrival
TOCO = Take-Off Computation
• The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus data for navigational accuracy
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

518.0 kHz 9WW21 Miri Radio, Sarawak, Malaysia
Totally outdated meteorological warnings of several days ago ...
Alamak! Tak boleh tahan lah!
First Category = Sungai Sarawak - Sungai Sadong - Sungai Lundu
Second Category = Sungai Batang Lupar
Third Category = Sungai Regang up to Brunei
Warnings still in force - received 161510Z DEC 2024!

518.0 kHz Sandakan Radio, Sabah, Malaysia
NTM = Notice to Mariners
Alamak! "Unforseen circumstances" read Philippine pirates!!
Remember Lahad Datu in 1985 ...
Warnings still in force - received 161500Z DEC 2024

4209.5 kHz XVN Nha Trang Radio, Viet Nam

4209.5 kHz XVG Hai Phong Radio, Viet Nam
Warnings still in force - received 151600Z DEC 2024

7795.0 kHz JMH2 Tokyo Meteo, Japan

6559.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft HL8388 + flight AS1405
Perfect CPDLC ...
LTAET = Less Than All Engine Taxi
• The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
• The TP4 (= Transport Protocol Class 4) message
notifies the pilot of an ATSU identifier
• 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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

6559.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft C-FIUF + N392HA + N12012 + TC-LGV + flight UPS296
PHNL - KORD cruise data ...
The four last figures of the second group are the time
The third group is the FL
CFB = Centralized Fault Book
DFB = Digital Flight Book
DX = Dispatcher
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
VSC = Vacuum System Controller

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

16984.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

11184.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft B-32D3 enroute LEBL - ZBAA
go2MONITOR's superb Result Viewer allows easy selection of MIAM
out of hundreds of decoded messages by means of advanced filter settings ...
go2MONITOR perfectly re-assembles and decodes MIAM CORE data ...
These are often messages in Airbus' XML format
CIDS = Cabin Intercommunication Data System
CMS = Cabin Management System
MIAM = Media Independent Aircraft Message
MSN = Manufacturer's Serial Number
PDU = Pilot Display Unit
PSU = Passenger Service Unit
RTR = Ready To Receive

11184.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft B-32AS enroute ZBAA - EGLL
go2MONITOR's superb Result Viewer allows easy selection of MIAM
out of hundreds of decoded messages by means of advanced filter settings ...
go2MONITOR perfectly re-assembles and decodes MIAM CORE data ...
These are often messages in Airbus' XML format
ADIRU = Air Data Inertial Reference Unit
CMS = Cabin Management System
FDE = Fault Detection and Exclusion
IR = Inertial Reference
MIAM = Media Independent Aircraft Message
MMR = Multi-Mode Receiver
MSN = Manufacturer's Serial Number
PDU = Pilot Display Unit
RTR = Ready To Receive

5720.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft A6-EVH + CN-RGZ + EC-MYX + ET-AOT + HL8517 + flight ETD39B
Code figures for BIKF runways braking action - see e.g. here
AGM = Miscellaneous Air/Ground Message
CDB = Commandant Du Bord
FSM = Flight System Message
TI2 = Terminal Information Request
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response
FCA = Facilities Contact Advisory
FMH = Facilities Message Header = Flight Number
• The TP4 (= Transport Protocol Class 4) message
notifies the pilot of an ATSU identifier
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

21934.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft EC-MAJ + JA17KZ + N566LA + N26960 + XA-VDF + flight FDX828
FSM = Flight System Message
• The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus data for navigational accuracy
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

11387.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft A7-AMG + B-2039 + CC-CWV + CC-CXC + JY-BAG + flight GTI805
POSREP = POS, WP, ATO, FL, next+1 WP, ETO, next+2 WP,
ETO, temperature, wind, FOB or SOG, time stamp, date, HEX serial
AGM = Miscellaneous Air/Ground Message
LAHSO = Land And Hold Short Operations
• DELAY is a critical procedure, designed to prevent pilots
from acting on any old CPDLC messages
that might have been delayed in the network
The most serious of such cases would be
the pilot executing a clearance that was no longer valid
• The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus data for navigational accuracy
• The Altitude Range Change Event is triggered
when the aircraft's altitude exceeds the altitude ceiling
or floor defined in the contract by the ground system
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

11387.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft B-2039 + F-HRBB + JA828A + N579UP + N634UP + N725NK + XA-DHN + XA-MFG + flight UAL906
SAEZ - MMMX cruise data ...
The four last figures of the second group are the time
The third group is the FL
Code figures for CYUL runways braking action - see e.g. here
CFD = Centralized Fault Data
CRFI = Canadian Runway Friction Index
DFB = Digital Flight Book
ECS = Environmental Control System
EEP = ETOPS Entry Point
OMC = Operations Management Center
RSC = Runway Surface Condition
TI2 = Terminal Information Request
• The TP4 (= Transport Protocol Class 4) message
notifies the pilot of an ATSU identifier
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

518.0 kHz Muttam Point Radio, India
IMD = India Meteorological Department
INW = Indian Navigational Warning

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

17985.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft EC-OGE + EI-EIL + G-POWK + G-VBEL + HL8522 + JY-BAG + OE-LZD + SU-GEH + TC-LOM + 7T-VJX + flight VIR250
AGM = Miscellaneous Air/Ground Message
CTOT = Calculated Take-Off Time (used for slot allocation)
DSP = Flight Operations Control
DT = Destination, followed by the runway number
FN = Flight Number
OFP = Operational Flight Plan
REQPWI = Predicted Wind Request for FL 350
TS = Time Stamp
• The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
• 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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

4210.0 (not 4209.5!) kHz L2C Argentinian Coast Guard Buenos Aires, Argentina

8431.0 kHz TAH Istanbul Radio, Turkey

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

9982.5 kHz KVM70 Honolulu Meteo, Hawaii

9982.5 kHz KVM70 Honolulu Meteo, Hawaii

9982.5 kHz KVM70 Honolulu Meteo, Hawaii

518.0 kHz UHY Murmansk Radio, Russian Federation

518.0 kHz ZSC Cape Town Radio, South Africa (Republic of)
ZSJ has been ZAN for many years now ...
SAN = South African Navy

518.0 kHz NMQ United States Coast Guard Long Beach CA, United States of America
BNM = Broadcast Notice to Mariners
LLNR = Light List Number
SD = San Diego

8416.5 kHz VFF Canadian Coast Guard Iqaluit NUN, Canada
MCTS = Marine Communications and Traffic Services
003160023 is the station's MMSI (Maritime Mobile Service Identity) code

8416.5 kHz VFF Canadian Coast Guard Iqaluit NUN, Canada
WVS = World Vector Shoreline

8942.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft B-2006 + JY-AYV + RA73111 + RA73207 + 7T-VJV + flight XA0600
POSREP = POS, WP, ATO, FL, next+1 WP, ETO, next+2 WP,
ETO, temperature, wind, FOB or SOG, time stamp, date, HEX serial
BMC = Bleed Monitoring Computer
CFB = Centralized Fault Book
ECU = Electronic Control Unit
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
VSC = Vacuum System Controller
WN = Warning Number, followed by the Date-Time Group
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

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

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

5655.0 kHz H06 HFDL Hat Yai Air, Thailand, + aircraft B-32G + N618FE + 9V-SCF + 9V-SHJ + 9V-SMM + flight FDX905
ZFW + T1 + T2 + T3 + AUX + TAIL - TX = TOGW ... however this weight/balance sheet is incomplete
CFD = Centralized Fault Data
TOCG = Take Off Centre of Gravity
ZFCG = Zero Fuel Centre of Gravity
• The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

15615.0 kHz VMW Wiluna Meteo WA, Australia

22448.8 kHz FUV French Navy Jibuti, Djibouti

6559.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft B-32F8 + B-6546 + B-7836 + F-HRBC + N880FD + 9V-SMT + flight FDX77
PACD is an ETOPS emergency alternate airport
for trans-Pacific flights with RWY 15/33 = 3103 metres ...
AOC = Airline Operations Control
CFB = Centralized Fault Book
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
TI2 = Terminal Information Request
VSC = Vacuum System Controller
• The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

518.0 kHz Gislovshammar Radio, Sweden
Warnings still in force - received 011730Z DEC 2024
AIS = Automatic Identification System
VTS = Vessel Traffic Service

518.0 kHz UUI Odessa Radio, Ukraine

9110.0 kHz NMF United States Coast Guard Boston MA, United States of America
NCEP = National Centers for Environmental Prediction

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

9110.0 kHz NMF United States Coast Guard Boston MA, United States of America
NCEP = National Centers for Environmental Prediction
OPC = Ocean Prediction Center

17967.0 kHz H15 HFDL Muhurroq Air, Bahrain, + aircraft A6-AES + A6-EIS + EI-KDG + F-HRNB + HZ-NS23 + RA73151 + 7O-AFB + 7O-AFE + flight ETD2FP
AA = Arrival Airport
ADIRU = Air Data Inertial Reference Unit
ASM = Air Separation Module
CFB = Centralized Fault Book
CFDS = Centralized Fault Display System
CSAS = Conditioned Service Air System
CVDR = Cockpit Voice and Data Recorder
DA = Departure Airport
DFB = Digital Flight Book
DM = Time Stamp
DS = Destination Airport
DT = Destination, followed by the runway number
ECAM = Electronic Centralized Aircraft Monitoring
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
FTIS = Fuel Tank Inerting System
FWC = Flight Warning Computer
IR = Inertial Reference
REQFPN = FPL report request uplink
REQPWI = Predicted Wind Request for FL 340 320 300 280
RESREQ/AK = FMS downlink acknowledgement of a REQFPN uplink
SDU = Satellite Data Unit
TS = Time Stamp
WN = Warning Number, followed by the Date-Time Group
WXR = Weather Radar
• The Altitude Range Change Event is triggered
when the aircraft's altitude exceeds the altitude ceiling
or floor defined in the contract by the ground system
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

6559.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft F-HREY + HL8387 + JA18KZ + JA880A + flight AS1043
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

8912.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft N121FE + N946AV + flight KAL036
Extremely detailed SKRG landing data ...
• Engine Cruise Report SKCL - SKRG ...
= 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 ...

518.0 kHz EAL Las Palmas Radio, Canary Islands

21931.0 kHz H04 HFDL Riverhead Air NY, United States of America, + aircraft C-FNOE + EC-ODR + F-HTYO + HP1525 + N239NV + 9V-SGD + flight AVA847
POSREP = POS, WP, ATO, FL, next+1 WP, ETO, next+2 WP,
ETO, temperature, wind, FOB or SOG, time stamp, date, HEX serial
CFB = Centralized Fault Book
DB = Dash Board
EOR = End of Report
FRC = Fault Reporting Code
SITA = Societe Internationale de Telecommunication Aeronautique
TI2 = Terminal Information Request
• The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

518.0 kHz ZSQ Port Elizabeth Radio, South Africa (Republic of)
ZSJ has been ZAN (QRT ...) for many years now ...
SAN = South African Navy

518.0 kHz Balasore Radio, India
IMD = India Meteorological Department

8942.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft CN-ROL + CN-ROY + EC-NGM + F-WZFZ + G-VJAZ + OE-LZE + flight AUA864
F-WZFZ is an Airbus A350-1041 on a LFBO - LFBO test flight, to become JA08WJ for Japan Airlines ...
Code figures for BIKF and LFPG runways braking action - see e.g. here
AGM = Miscellaneous Air/Ground Message
CCO = Operations Control Centre
RSCD = Runway Surface Condition
TI2 = Terminal Information Request

518.0 kHz PKX Jakarta Radio, Indonesia
BMKG = Badan Meteorologi Klimatologi dan Geofisica
ILL = International Light List

13315.0 kHz H13 HFDL Santa Cruz Air, Bolivia, + aircraft EC-NBN + HP1845 + PR-TYI + PR-TYL + flight LAN711 + ME0217
go2MONITOR's superb Result Viewer has a post processor feature
running after the signal was received, extracting sender
and receiver IDs, position data, and more
For ADS-B signals, the post processing was adapted
to extract airplane positions and their addresses sent
POSREP = POS, WP, ATO, FL, next+1 WP, ETO, next+2 WP,
ETO, temperature, wind, FOB or SOG, time stamp, date, HEX serial
BSCU = Brake System Control Unit
BTMU = Brake Temperature Monitoring Unit
CFB = Centralized Fault Book
DU = Display Unit
EIS = Electronic Instrument System
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
SD = System Display
TI2 = Terminal Information Request

21934.0 kHz H01 HFDL San Francisco Air CA, United States of America, + aircraft C-GUFU + HP1714 + N505DN + 9V-SJA + XA-VCC + flight KAL085
POSREP = POS, WP, ATO, FL, next+1 WP, ETO, next+2 WP,
ETO, temperature, wind, FOB or SOG, time stamp, date, HEX serial
SITA = Societe Internationale de Telecommunication Aeronautique
• The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus 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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

4209.5 kHz XVN Nha Trang Radio, Viet Nam

9165.0 kHz HLL Soul Meteo, South Korea

13074.0 kHz JFC Misaki Fisheries Radio, Japan
Latest tuna market prices ...
The date reads 6 11 24 = 2024 November 24
since the Japanese calendar year in the Reiwa Era is used here
Formula: Reiwa year + 2018 = Gregorian year

518.0 kHz VAU Canadian Coast Guard Chebogue NS, Canada

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

518.0 kHz OXF Simiutaq Radio, Greenland
DMI = Danish Meteorological Institute

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

518.0 kHz 9AS Split Radio, Croatia

518.0 kHz 9HD Valetta Radio, Malta
NTM = Notice to Mariners
SOLAS = Safety of Life at Sea
TM = Tele Malta

6413.8 kHz Digital data station

3192.0 kHz RMP Commonwealth of Independent States Navy Kaliningrad, Russian Federation

12610.0 kHz Digital data station

518.0 kHz XSI Sanya Radio, China
STS = Severe Tropical Storm

518.0 kHz VCG Canadian Coast Guard Moisie QUE, Canada

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

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 CBP Puerto Montt Radio, Chile

518.0 kHz XSZ Dalian Radio, China

12711.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

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

21928.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-32DX + B-8649 + B-18907 + HL8099 + JA204P + JA902P + JA903P + flight CES575
Code figures for VHHH runways braking action - see e.g. here
AGM = Miscellaneous Air/Ground Message
IAO = In and Out of Clouds
LGTM = Light Minus Turbulence = relatively weaker intensity
OCC = Operations Control Centre
PDC = Pre-Departure Clearance
TC = Tropical Cyclone
TCAC = Tropical Cyclone Advisory Centre
TI2 = Terminal Information Request
TPEOD = Taipei Operational Department

13988.5 kHz JMH4 Tokyo Meteo, Japan

13988.5 kHz JMH4 Tokyo Meteo, Japan

13988.5 kHz JMH4 Tokyo Meteo, Japan

518.0 kHz 4XO Haifa Radio, Israel -
NTM = Notice to Mariners

518.0 kHz EQI Abbas Radio, Iran
PMO = Port and Maritime Organization

10030.0 kHz H15 HFDL Muhurroq Air, Bahrain, + aircraft A6-EIP + A7-APG + B-LNZ + B-32AG + F-HTYC + SU-GEM + VN-A691 + 7O-AFE + flight CCA426
AGM = Miscellaneous Air/Ground Message
OMC = Operations Management Center
REQPWI = Predicted Wind Request for FL 360
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response
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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

8040.0 kHz GYA Royal Navy London, United Kingdom

8040.0 kHz GYA Royal Navy London, United Kingdom

16806.5 kHz NRV United States Coast Guard Apra Harbour, Guam
ITCZ = Inter-Tropical Convergence Zone

16971.0 kHz JJC Kyodo Tsushin Tokyo, Japan

16971.0 kHz JJC Kyodo Tsushin Tokyo, Japan

13312.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-20EH + B-32DZ + B-6009 + B-18652 + B-18663 + EC-OAP + HL7610 + HL8535 + flight CES561
Ground connections ...
A NOTAM decoder can be found e.g. here
AGM = Miscellaneous Air/Ground Message
MOC = Meteorological Operations Center
PDC = Pre-Departure Clearance
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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

17967.0 kHz H15 HFDL Muhurroq Air, Bahrain, + aircraft A6-EUG + F-HSKA + HZ-NS5 + HZ-NS83 + JA211P + RA73151 + flight QTR36Y
AGM = Miscellaneous Air/Ground Message
CFB = Centralized Fault Book
CMS = Cabin Management System
FAP = Flight Attendant Panel
MSN = Manufacturer's Serial Number
OCC = Operations Control Center
RTR = Ready To Receive
VTS = Vacuum Toilet Service

518.0 kHz Antalya Radio, Turkey
Warnings still in force - received 051650Z NOV 2024
N/W = Nautical Warning

518.0 kHz Famagusta (?) Radio, Cyprus
This strange new broadcast seems to originate from the Turkish-occupied territory of Cyprus ...
Anyway, time slot E is assigned to Samsun Radio in Turkey

518.0 VBA Canadian Coast Guard Pass Lake, ONT, Canada

518.0 kHz Vakalpudi Radio, India
INW = Indian Navigational Warning

13315.0 kHz H13 HFDL Santa Cruz Air, Bolivia, + aircraft PR-TYM + PR-TYN + RPC8393 + flight UAL164
Code figures for SBBR runways braking action - see e.g. here
AA = Arrival Airport
ADIRU = Air Data Inertial Reference Unit
CFB = Centralized Fault Book
DA = Departure Airport
DFB = Digital Flight Book
FCNT = (DAR) Frame Counter
FLR = Failure
FPN = Flight Plan Report downlink
FR = Fault Report, followed by the Date-Time Group
FSM = Flight System Message
ISFC = Indicated Specific Fuel Consumption
RSCD = Runway Surface Condition
RWYCC = Runway Condition Code
TI2 = Terminal Information Request
TS = Time Stamp
WN = Warning Number, followed by the Date-Time Group
WXR = Weather Radar

13315.0 kHz H13 HFDL Santa Cruz Air, Bolivia, + aircraft N571DZ + PR-TYM + RPC8786 + flight LAN701
GELO NA CHEGADA!!!
FDC = Fuel Data Concentrator
MTC = Maintenance Technical Center

13303.0 kHz H17 HFDL Telde Air, Canary Islands, + aircraft N522DZ + flight DAH406
go2MONITOR's superb Result Viewer has a post processor feature
running after the signal was received, extracting sender
and receiver IDs, position data, and more
For ADS-B signals, the post processing was adapted
to extract airplane positions and their addresses sent
BURN + ALTN + 10 PCT + RESV = MIN + CONT/DLA = EST
CI = Consistency Index
FMS = Flight Management System
PFL = Planned Flight Level
PFR = Planned Fuel Remaining
PLND = Planned Time

8503.9 kHz NMG United States Coast Guard New Orleans LA, United States of America
NCEP = National Centers for Environmental Prediction

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

518.0 kHz 9VG Singapore Radio, Singapore
Ships piloting and routing ...
DFT = Draft
DWT = Dead Weight Tonnage
OFB = One Fathom Bank = Sandbank Shoal at N0305 E10040
1.8288 metres = 1 fathom = 2 yards = 6 feet = 18 hands = 72 inches ...
= 30 ears = 60 noses = 180 teeth (sorry, just joking ;-))
SPOCC = Singapore Port Operations Control Centre
TSS = Traffic Separation Scheme

11348.0 kHz H17 HFDL Telde Air, Canary Islands, + aircraft B-1297 + G-POWK + RA73709 + RA73712 + 9H-LMJ + flight VIR46K
RS message seems to be some approach data downlink
(heading towards URMM)
or some non-standard ULD cargo configuration ...
Code figures for EDDK runways braking action - see e.g. here
RWYCC = Runway Condition Code
TI2 = Terminal Information Request

13033.0 kHz FUF French Navy Fort de France, Martinique
Adjacent is a CIS-12 PSK signal on 13036.8 kHz ...
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

4209.5 kHz XVG Hai Phong Radio, Viet Nam

7396.9 kHz HSW64 Bangkok Meteo, Thailand

7396.9 kHz HSW64 Bangkok Meteo, Thailand

8894.0 kHz H11 HFDL Panama City Air, Panama, + flight UAL63 + UAL882

13312.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-308E + B-5970 + JA212P + JA901P + RA73831 + 9V-SJB + flight ABB870
AGM = Miscellaneous Air/Ground Message
CFB = Centralized Fault Book
CIDS = Cabin Intercommunication Data System
DFD = Digital Flight Data
EFF = Electronic Flight Folder
FWS = Flight Warning System
LGTM = Light Minus Turbulence = relatively weaker intensity
OCC = Operations Control Center
• 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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

3797.0 kHz RCV Commonwealth of Independent States Navy Sevastopol', Ukraine

490.0 kHz CBV Valparaiso Radio, Chile

518.0 kHz SUZ Serapeum Radio, Egypt
BA = British Admiralty
HDD = Horizontal Directional Drilling

518.0 kHz 3VL Kelibia Radio, Tunisia

518.0 kHz PBK Netherlands Coast Guard Ijmuiden, Netherlands
EEZ = Exclusive Economic Zone

518.0 kHz UDN Novorossiysk Radio, Russian Federation

16826.3 kHz XSQ Guangzhou Radio, China
CMA = China Meteorological Administration
MSA = Maritime Safety Administration

7646.0 kHz DDH7 Hamburg Meteo, Germany
DWD = Deutscher Wetterdienst

17985.0 kHz H03 HFDL Reykjavik Air, Iceland, + aircraft A7-ANE + N629UP + flight RJA265
Perfect CPDLC...
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response
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 TP4 (= Transport Protocol Class 4) message
notifies the pilot of an ATSU identifier
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

518.0 kHz XVS Ho Chi Minh City Radio, Viet Nam

518.0 kHz LFO Oerlandet Radio, Norway

518.0 kHz NMO United States Coast Guard Honolulu, Hawaii

8977.0 kHz H03 HFDL Reykjavik Air, Iceland, + flight AVA218 + ITY6KC

518.0 kHz L2G Argentinian Coast Guard Buenos Aires, Argentina

518.0 kHz L2N Argentinian Coast Guard Bahia Blanca, Argentina

21982.0 kHz H15 HFDL Muhurroq Air, Bahrain, + aircraft UK33021 + flight QTR36Y
CG = Center of Gravity
DFB = Digital Flight Book
FQLI = Fuel Quantity Inner Left Tank
FQLO = Fuel Quantity Outer Left Tank
FQRI = Fuel Quantity Inner Right Tank
FQRO = Fuel Quantity Outer Right Tank
FQTT = Fuel Quantity Total
OIP = Oil Pressure
OIQ = Oil Quantity
OIT = Oil Temperature

518.0 kHz PBB Dutch Navy Den Helder, Netherlands

12789.9 kHz NMG United States Coast Guard New Orleans LA, United States of America
NHC = National Hurricane Center

3585.0 kHz HLL8 Soul Meteo, South Korea

518.0 kHz VOK Canadian Coast Guard Cartwright NFLD, Canada

518.0 kHz Igdlutaligssuaq Radio, Kook Island, Greenland
DMI = Danish Meteorological Institute

518.0 kHz VFF Canadian Coast Guard Iqaluit NUN, Canada

16907.5 kHz JFA Funabashi Fisheries Radio, Japan
NOAA satellite settings for JRC / FURUNO fish finder equipment ...
The date reads 6 10 15 = 2024 October 15
since the Japanese calendar year in the Reiwa Era is used here
Formula: Reiwa year + 2018 = Gregorian year

21997.0 kHz H13 HFDL Santa Cruz Air, Bolivia, + aircraft PR-YYJ + flight LAN621
Perfect OOOI ...
ADIRU = Air Data Inertial Reference Unit
CFB = Centralized Fault Book
DA = Departure Airport
DM = Time Stamp
DRINFO = Door Closure Time
DS = Destination Airport
FR = Fault Report, followed by the Date-Time Group
IR = Inertial Reference
WXR = Weather Radar

5195.0 kHz DRA5 Kiel, Germany

21997.0 kHz H13 HFDL Santa Cruz Air, Bolivia, + flight LAN621 + LXP950

16971.0 kHz JJC Kyodo Tsushin Tokyo, Japan
JSC = Japan Ship Centre

13270.0 kHz H06 HFDL Hat Yai Air, Thailand, + flight EY0424 + QTR3J

518.0 kHz SVH Iraklion Radio, Greece

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

Tropical Storm Milton ...

16826.3 kHz XSQ Guangzhou Radio, China
CMA = China Meteorological Administration
MSA = Maritime Safety Administration

518.0 kHz JGC Yokohama Radio, Japan

10063.0 kHz H11 HFDL Panama City Air, Panama, + aircraft CC-CXG + JA875A + N724NK + N725NK + flight AFR377
AGM = Miscellaneous Air/Ground Message
TI2 = Terminal Information Request
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

518.0 kHz ZSD Durban Radio, South Africa (Republic of)
ZSJ has been ZAN for many years now ...

8416.5 kHz NMO United States Coast Guard Honolulu, Hawaii
ITCZ = Inter-Tropical Convergence Zone

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

12789.9 kHz NMG United States Coast Guard New Orleans LA, United States of America
NHC = National Hurricane Center

10063.0 kHz H11 HFDL Panama City Air, Panama, + aircraft N617UP + N944AV + flight AEA088
CFB = Centralized Fault Book
CMC = Central Maintenance Computer
DT = Destination, followed by the runway number
ECS = Environmental Control System
FN = Flight Number
TS = Time Stamp
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCP = Facilities Contact Response
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 Altitude Range Change Event is triggered
when the aircraft's altitude exceeds the altitude ceiling
or floor defined in the contract by the ground system
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

8942.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft LY-NOW + RA73097 + flight KNE074
AGM = Miscellaneous Air/Ground Message
CTOT = Calculated Take-Off Time (used for slot allocation)
FOC = Flight Operations Control
PTID = Point Identification
RSCD = Runway Surface Condition
TI2 = Terminal Information Request
TTO = Target Time Over

14629.2 kHz CTA Portuguese Navy Lisbon, Portugal

5100.0 kHz VMC Charleville Meteo QLD, Australia
SWF = Short-Wave Fadeout

8936.0 kHz H02 HFDL Hoolehua Air, Molokai, Hawaii, + flight ACA22 + FDX3

518.0 kHz Cape Columbine Radio, South Africa (Republic of)
SAN = South African Navy

11306.0 kHz H16 HFDL Barrigada Air, Guam, + aircraft B-LRK + B-18901 + HL8362 + 9V-SJA enroute KSFO - WSSS + flight ETD871
go2MONITOR's superb Result Viewer allows easy selection of MIAM
out of hundreds of decoded messages by means of advanced filter settings ...
go2MONITOR perfectly re-assembles and decodes MIAM CORE data ...
These are often messages in Airbus' XML format
PASY is an ETOPS emergency alternate airport in the Alaskan Aleutian Islands
for trans-Pacific flights ... RWY 10/28 is 3049 metres long
AGM = Miscellaneous Air/Ground Message
DT = Destination, followed by the runway number
FN = Flight Number
MIAM = Media Independent Aircraft Message
NRT = Narita
PDU = Pilot Display Unit
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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

13074.0 kHz JFC Misaki Fisheries Radio, Japan
JAFIC = Japan Fisheries Information Service Center
The date reads 6 8 20 = 2024 August 20
since the Japanese calendar year in the Reiwa Era is used here
Formula: Reiwa year + 2018 = Gregorian year

19640.8 kHz Digital data station

21982.0 kHz H15 HFDL Muhurroq Air, Bahrain, + aircraft B-32F8 + B-2413 + HZ-NS45 + SU-GDY + VT-ANJ + flight CSZ921
CFB = Centralized Fault Book
FLR = Failure
FR = Fault Report, followed by the Date-Time Group
PSH = Pushback Time
RMP = Radio Management Panel
• The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus data for navigational accuracy
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

8942.0 kHz H07 HFDL Shannon Air, Ireland, + aircraft CN-ROB + CN-ROH + EI-KBV + ES-SAB + LY-CIN + N843FD + N867FD + RA73168 + flight P6073D
DEST BURN + ALTN + RESERVE + HOLD = MIN RQD + RPF + OTHER = TKOF + TAXI = TTL FOB
AGM = Miscellaneous Air/Ground Message
CCO = Operations Control Centre
CDB = Commandant Du Bord
CTOT = Calculated Take-Off Time (used for slot allocation)
GOCC = Global Operations Control Center
MFWF = Minimum Flight Weight Fuel
PTID = Point Identification
RPF = Reliability Protection Fuel
RSCD = Runway Surface Condition
TI2 = Terminal Information Request
TTO = Target Time Over
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

518.0 kHz Sellia Marina Radio, Italy

8416.5 kHz UAT Moscow Radio, Russian Federation

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

13074.0 kHz JFC Misaki Fisheries Radio, Japan
Typhoon warning ...
The date reads 6 8 9 = 2024 August 9
since the Japanese calendar year in the Reiwa Era is used here
Formula: Reiwa year + 2018 = Gregorian year

21997.0 kHz H13 HFDL Santa Cruz Air, Bolivia, + aircraft CC-CXF + EI-HJP + HP1714 + N453PA + N956AV + flight AVA266
CFD = Centralized Fault Data
ECS = Environmental Control System
FR = Fault Report
REQFPN = FPL report request uplink
REQPWI = Predicted Wind Request for FL 360 340 320 300
RESREQ/AK = FMS downlink acknowledgement of a REQFPN uplink
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response
FMH = Facilities Message Header = Flight Number
• The TP4 (= Transport Protocol Class 4) message
notifies the pilot of an ATSU identifier
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

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

4209.5 kHz SVH Iraklion Radio, Greece

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

11086.5 kHz GYA Royal Navy London, United Kingdom
JOMOC = Joint Operations Meteorological and Oceanography Centre

16977.0 kHz JFM Muroto Fisheries Radio, Japan
Japanese Morse code ...

8425.5 kHz XSG Shanghai Radio, China
Presumably local time used at the end since received at 0850 UTC ...

13074.0 kHz JFC Misaki Fisheries Radio, Japan
Tropical Storm Gaemi ...
The date reads 6 7 23 = 2024 July 23
since the Japanese calendar year in the Reiwa Era is used here
Formula: Reiwa year + 2018 = Gregorian year

518.0 kHz Chukpy Radio, South Korea
Warnings still in force - received 221530Z JUL 2024
JCS = Joint Chiefs of Staff

13342.0 kHz H10 HFDL Muan Air, South Korea, + aircraft A7-ALD + B-5930 + B-8502 + JA16KZ + JA923A + N112FE + XA-VSG + flight CES236
DFD = Digital Flight Data
• The TP4 (= Transport Protocol Class 4) message
notifies the pilot of an ATSU identifier
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

13312.0 kHz H16 HFDL Barrigada Air, Guam, + flight CES566

4209.5 kHz XVG Hai Phong Radio, Viet Nam

17958.0 kHz H10 HFDL Muan Air, South Korea, + aircraft B-20CJ + B-32AG + B-304N + B-307Y + B-5929 + JA814A + JA819P + N507DN + flight CSC392
AGM = Miscellaneous Air/Ground Message
DFD = Digital Flight Data
FMC = Flight Management Computer
FMS = Flight Management System
FWS = Flight Warning System
LGTP = Light Plus Turbulence = relatively greater intensity
TI2 = Terminal Information Request
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

10060.0 kHz H10 HFDL Muan Air, South Korea, + aircraft B-LXJ + B-2089 + EI-KGI + HL7629 + JA828P + 9V-SCI + flight CES630
AGM = Miscellaneous Air/Ground Message
LGTP = Light Plus Turbulence = relatively greater intensity
TI2 = Terminal Information Request
• 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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

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

17958.0 kHz H10 HFDL Muan Air, South Korea, + aircraft B-30CJ + B-32FK + B-2419 + B-7800 + N504DN + 9V-SHN + 9V-SHO + flight UPS109
Code figures for ZSWZ runways braking action - see e.g. here
AGM = Miscellaneous Air/Ground Message
RWYCC = Runway Condition Code
TI2 = Terminal Information Request
• The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

518.0 kHz ZBM Hamilton Harbour Radio, Bermuda

17958.0 kHz H10 HFDL Muan Air, South Korea, + aircraft A6-EDK + B-6941 + N612UP + 9V-SJB + flight CES508
AGM = Miscellaneous Air/Ground Message
WSI = Weather Services International
• The TP4 (= Transport Protocol Class 4) message
notifies the pilot of an ATSU identifier
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

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

13342.0 kHz H10 HFDL Muan Air, South Korea, + aircraft B-329P + B-6009 + B-7838 + B-8429 + B-8658 + JA215P + JA805A + JA823P + 9V-SKT + flight SIA36
AGM = Miscellaneous Air/Ground Message
CFB = Centralized Fault Book
LGTM = Light Minus Turbulence = relatively weaker intensity
OCC = Operations Control Centre
PD = Profile Descent
WN = Warning Number, followed by the Date-Time Group
• DELAY 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
• CPDLC ADS-C message headers are defined e.g. in
ICAO's Global Operational Data Link Manual here or here
• Codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here
• Codes of ACARS Message Labels can be found here

8658.0 kHz JFX Kagoshima Fisheries Radio, Japan
The date reads 6 6 10 = 2024 June 10
since the Japanese calendar year in the Reiwa Era is used here
Formula: Reiwa year + 2018 = Gregorian year

7646.0 kHz DDH7 Hamburg Meteo, Germany

518.0 kHz SVK Kerkyra Radio, Greece

518.0 kHz VBR Canadian Coast Guard Ferndale ONT, Canada

518.0 kHz Parangipettai Radio, India
IMD = India Meteorological Department
INW = Indian Navigational Warning
MMB = Maharashtra Maritime Board

8427.0 kHz KPH San Francisco Radio CA, United States of America
MITAGS = Maritime Institute of Technology and Graduate Studies
MMP = Masters, Mates and Pilots

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

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

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 202^3 edition of our Perseus Frequency Database
now shows utility stations' callsigns as well!

8454.8 kHz FUG French Navy Saissac, France
New 2024 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 2023 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