Hot Frequencies and
Digital Data Transmission Screenshots

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


6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft HL7579 + N535AS + N24972
HIWAS = Hazardous Inflight Weather Advisory Service
The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

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

6565.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft N850GT + N858FD + XA-ADH + 9V-SGG
CFD = Centralized Fault Data
ECS = Environmental Control System
ETP = Equitime Point
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

8977.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft CS-TKQ + N12003 + SU-GEJ + VP-BBL + VP-BEE + VP-BPL VQ-BBY + + 5A-WLA
Perfect OOOI ...
AFS = Auto Flight System
BSCU = Brake System Control Unit
CFB = Centralized Fault Book
CIDS = Cabin Intercommunication Data System
DAR = Data Access Recorder
DMU = Data Management Unit
ECS = Environmental Control System
FLR = Flight Recorder
FR = Fault Report
IFE = In-Flight Entertainment
PISA = Passenger Interface and Supply Adapter
SR = Seat Row
TOBT = Target Off Block Time
TTOT = Target Take Off Time
WN = Warning Number

8459.0 kHz NOJ United States Coast Guard Kodiak, Alaska

518.0 kHz PKX Jakarta Radio, Indonesia

12711.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

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

13315.0 kHz ACARS/HFDL H13 Santa Cruz Air, Bolivia, + aircraft N540LA
DFB = Digital Flight Book
DT = Destination, followed by the runway number
FMC = Flight Management Computer
ISFC = Indicated Specific Fuel Consumption
REQPRG = Request Flight Progress Report
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

8677.0 kHz CBV Valparaiso Radio, Chile

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

8677.0 kHz CBV Valparaiso Radio, Chile

17958.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft B-30AH + B-2091 + B-2292 + B-2410 + B-6333 + B-8492 + flight CES521
CFD = Centralized Fault Data
FLCN = Functional Logistic Control Number

518.0 kHz L2G Argentinian Coast Guard Buenos Aires, Argentina

518.0 kHz L2T Argentinian Coast Guard Mar del Plata, Argentina

518.0 kHz SVH Iraklion Radio, Greece

7795.0 kHz JMH2 Tokyo Meteo, Japan

7795.0 kHz JMH2 Tokyo Meteo, Japan

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

13270.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft A7-BGA + B-1687 + B-5946 + B-6638 + B-8566 + B-8680 + B-9947 + N845FD + VP-BFF
Flight parameters; and enroute weather ZSNJ - ZGNN ...
CFB = Centralized Fault Book
WN = Warning Number
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FMH = Facilities Message Header = Flight Number
The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

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

518.0 kHz NOJ United States Coast Guard Kodiak, Alaska

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

490.0 kHz CTV Portuguese Navy Lisbon, Portugal

11387.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft EP-MMQ + HP1538 + N24974 + flight CES705
CFB = Centralized Fault Book
EEC = Electronic Engine Controller
FLR = Flight Recorder
FR = Fault Report
TACS = Tactical Air Control System
TI2 = Terminal Information Request
WN = Warning Number
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

11387.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft N507BJ + N614FE + N894FD
Before, this aircraft made a hop from Austin TX to Waco TX ...
Now LINDSEY at Austin is a Boeing "Independent Interior Designer"
while L3HARRIS at Waco is a "Licensed Completion Center",
so this is probably a KCNW - UTDD delivery flight
of a brandnew Boeing Business Jet VIP or VVIP aircraft ...
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

518.0 kHz VAU Canadian Coast Guard Chebogue NS, Canada

10027.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft A7-HHM + JA219A + N610UP + RPC8611 + 9V-SCO + 9V-SME
DOI = Dry Operating Index
HIJ = Hiroshima
UNDLD = Underload
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

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

16806.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina

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

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

518.0 kHz XVT Da Nang Radio, Viet Nam

6535.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft B-LXG + B-5943 + 9V-SGA + 9V-SMV
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCA = Facilities Contact Advisory
FCO ADS = Facilities Contact ADS-C
FCO ATC = Facilities Contact CPDLC
FMH = Facilities Message Header = Flight Number
FPO = Facilities Current Position
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

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

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

12637.5 kHz XSG Shanghai Radio, China
Characters in brackets denote the Latin alphabet
The four-figure groups without brackets
are Chinese ideographs -
see page 48 ff. in our Radio Data Code Manual

11184.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft B-30CW + HZ-AQK + N24974 + VP-BCA + VP-BLO + VP-BQG + VP-BQJ
CFB = Centralized Fault Book
DT = Destination, followed by the runway number
FLR = Flight Recorder
FN = Flight Number
FR = Fault Report
MMR = Multi-Mode Receiver
REQPRG = Request Flight Progress Report
TOBT = Target Off Block Time
TTOT = Target Take Off Time
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCA = Facilities Contact Advisory
FMH = Facilities Message Header = Flight Number
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

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

11184.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft B-2022 + F-HTYF + N504DN + SU-GDY
REQPWI = Wind Forecast Request for FL 340
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

11312.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-8860 + N610UP
The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

11312.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-18918 + JA213A + JA821A + N877FD + RPC8764 + 9V-SCE
DFB = Digital Flight Book
DFD = Digital Flight Data
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

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

17958.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + flight CCA820

6460.0 kHz UFZ Vladivostok Radio SE, Russian Federation

6619.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft HL7741 + VN-A829 + 9V-SCC
DFB = Digital Flight Book
TI2 = Terminal Information Request
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

6619.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft B-LXD + B-6885 + P4-KGB + P4-KGD + VN-A829 + XA-AMR
XA-AMR riding on the North Pacific Jet Stream near Japan
at nearly 600 knots = 1000+ kilometres per hour ...
The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

8582.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

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

8582.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

16600.8 kHz Digital data station

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft N562AS + N597FE + N614FE + N859FD + VH-EXZ
DFD = Digital Flight Data
GOCC = Global Operations Control Center
TOCG = Take Off Centre of Gravity
ZFCG = Zero Fuel Centre of Gravity
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCA = Facilities Contact Advisory
FMH = Facilities Message Header = Flight Number
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

22387.5 kHz SVO Olympia Radio, Athens, Greece

11312.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-6006 + HL7747 + N618UP + N624UP + N855FD + N876FD + 9V-SHD
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCA = Facilities Contact Advisory
FMH = Facilities Message Header = Flight Number
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

The codes of ACARS Message Labels can be found here

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

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

7433.5 kHz HLL5 Soul Meteo, South Korea

7433.5 kHz HLL5 Soul Meteo, South Korea

10081.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft A7-ANE + CN-RGS + CS-TKQ + VP-BKJ + VP-BKR + VP-BLP + VP-BPX + VP-BQH + VP-BQY + VP-BTH
AA = Arrival Airport
CCO = Operations Control Centre
CFB = Centralized Fault Book
DA = Departure Airport
FPN = Flight Plan
OCC = Operations Control Centre
RP = Route Plan
TOBT = Target Off Block Time
TS = Time Stamp
TTOT = Target Take Off Time
WN = Warning Number
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FMH = Facilities Message Header = Flight Number
The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

10081.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft CN-RGX + VP-BER + VP-BEW + VP-BGC + VP-BTG + VP-BTK + VQ-BQD
DT = Destination, followed by the runway number
FN = Flight Number
REQPRG = Request Flight Progress Report
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

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

490.0 kHz ICH Italian Coast Guard La Maddalena Island, Italy

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft B-5926 + N294NV + VQ-BUC + flight FDX193
Flight parameters ZSNJ - KLAX ...
DFB = Digital Flight Book
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

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

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft N504DN + N854GT
Parameters ...
CFB = Centralized Fault Book
ECS = Environmental Control System
The codes of ACARS Message Labels can be found here

6535.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft A7-ALP + B-5729 + B-6446 + HS-XTH + N608UP + 9V-SHM
ECS = Environmental Control System
TI2 = Terminal Information Request
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

The codes of ACARS Message Labels can be found here

4209.5 kHz XVG Hai Phong Radio, Viet Nam

6535.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft B-6546 + N404KZ + 9V-SHE
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCA = Facilities Contact Advisory
FCO ADS = Facilities Contact ADS-C
FCO ATC = Facilities Contact CPDLC
FMH = Facilities Message Header = Flight Number
FPO = Facilities Current Position
The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

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

4209.5 kHz XVN Nha Trang Radio, Viet Nam

6535.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft B-LXB + HS-XTH + 9V-SHM + 9V-SMI + 9V-SMK + 9V-SMM + 9V-SMP + 9V-SMV
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FMH = Facilities Message Header = Flight Number
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

The codes of ACARS Message Labels can be found here

4209.5 kHz XVG Hai Phong Radio, Viet Nam
Warnings still in force - received 081400Z MAY 2021

21955.0 kHz ACARS/HFDL H17 Telde Air, Canary Islands, + aircraft SU-GCP + 5Y-KZB + flight UAL251

21997.0 kHz ACARS/HFDL H13 Santa Cruz Air, Bolivia, + aircraft CC-CXK + HC-CSB + N542LA + N562FE + PR-YYC + 9V-SGC + flight UAL251
DS = Destination Airport
DT = Destination, followed by the runway number
FN = Flight Number
REQPRG = Request Flight Progress Report
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

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

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

13315.0 kHz ACARS/HFDL H13 Santa Cruz Air, Bolivia, + aircraft CC-CXK + flight AZU415

11312.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft HL7610 + LZ-AWY + N606UP + VP-BBL
The Waypoint Change Event is triggered by a change
made to the Next, or the Next-plus-one waypoint
This change normally occurs due to normal waypoint sequencing by the FMS
The Next or Next-plus-one waypoint can be either an ATS waypoint or a pilot inserted waypoint

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

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

The codes of ACARS Message Labels can be found here

518.0 kHz JNR Moji Radio, Japan

8310.5 kHz XSQ Guangzhou Radio, China
New radiofax service, schedule see here

17919.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-6325 + N102FE + N613UP
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height
The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

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

The codes of ACARS Message Labels can be found here

518.0 kHz ZBM Hamilton Harbour Radio, Bermuda

17919.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft A7-ANA + B-306F + B-6431 + JA18KZ + N110FE + N608UP + VP-BJS + 9V-SHQ + flight APJ236
DFD = Digital Flight Data
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FMH = Facilities Message Header = Flight Number
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

The codes of ACARS Message Labels can be found here

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

13324.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-1293 + N117FE + VP-BWK
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

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

11090.0 kHz KVM70 Honolulu Meteo, Hawaii

11090.0 kHz KVM70 Honolulu Meteo, Hawaii

11387.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft A7-ANB + N279AV + N587FE + 60024B
PAPEE should read PAPI
DT = Destination, followed by the runway number
FN = Flight Number
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
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

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

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

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

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

17958.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft B-2413 + B-2415 + B-6333 + B-8550 + VP-BJS
Enroute weather ZSHC - ZSYT and ZYYJ - ZSYT ...
DFB = Digital Flight Book
TI2 = Terminal Information Request
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

The codes of ACARS Message Labels can be found here

8416.5 kHz LGS Svalbard Radio, Spitsbergen, Norway

4209.5 kHz XSV Tianjin Radio, China

8658.0 kHz JFX Kagoshima Fisheries Radio, Japan
NOAA satellite settings for JRC / FURUNO fish finder equipment
The date reads 3 5 5 = 2021 May 5
since the Japanese calendar year in the Reiwa Era is used here
Formula: Reiwa year + 2018 = Gregorian year
Tentative schedule see here

16806.5 kHz NMC United States Coast Guard San Francisco CA, United States of America
ITCZ = Inter-Tropical Convergence Zone

7795.0 kHz JMH2 Tokyo Meteo, Japan

8977.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft JY-AYX + VP-BII + VP-BLL
CFB = Centralized Fault Book
CFDIU = Centralized Fault Data Interface Unit
FLR = Flight Recorder
FR = Fault Report
TI2 = Terminal Information Request
TOBT = Target Off Block Time
TTOT = Target Take Off Time

4209.5 kHz XVG Hai Phong Radio, Viet Nam
Warnings still in force - received 031400Z MAY 2021

8927.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft C-FVND + PK-GNA + RPC8398 + 9V-SHK
DOI = Dry Operating Index
TIF = Trip Fuel

518.0 kHz Puerto Montt Radio, Chile

13276.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft JA217A + JA932A + N540LA
TI2 = Terminal Information Request

13276.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft B-7881 + HL8085 + HL8308 + JA932A + N540LA + N613UP + 9V-SHK
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCA = Facilities Contact Advisory
FMH = Facilities Message Header = Flight Number
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

518.0 kHz CBV Valparaiso Radio, Chile

6565.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-1076 + JA835A + N297FE + VP-BWA + 9V-SCH + 9V-SMP
VOTX is only 6 kilometres from VOMM ...
DFD = Digital Flight Data
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

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

518.0 kHz JGC Yokohama Radio, Japan

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

17919.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-304N + B-1019 + B-6322 + B-8393 + JA815A + JA828P + JA897A + PK-GNS + 9V-SJA + 9V-SMP
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
DFD = Digital Flight Data
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FMH = Facilities Message Header = Flight Number
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

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

8416.5 kHz NMO United States Coast Guard Honolulu, Hawaii

4209.5 kHz XVN Nha Trang Radio, Viet Nam

8912.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft CS-TKQ + HL8083 + JA839A + JA886A + N576UP
The Basic or Periodic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

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

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

11387.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft F-HTYH + N293NV + N607UP
SPEED! ...
AA = Arrival Airport
DA = Departure Airport
RI = Routing Information
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

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

518.0 kHz VAE Canadian Coast Guard Tofino BC, Canada

518.0 kHz HSA Bangkok Radio, Thailand
Warnings still in force - received 300450Z APR 2021

518.0 kHz 9MG Georgetown Radio, Pinang Island, Malaysia
Warnings still in force - received 291920Z APR 2021

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

518.0 kHz Parangipettai Radio, India

10081.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft HL7616 + HZ-NS23 + VP-BGQ + VP-BWH + UK32011 + 5A-LAP + flight LH0931
CFB = Centralized Fault Book
CPC = Cabin Pressure Controller
DA = Departure Airport
DM = Time Stamp
DS = Destination Airport
FLR = Flight Recorder
FR = Fault Report
PACK = Pressurization Air Conditioning Kit
TI2 = Terminal Information Request
WN = Warning Number

7433.5 kHz HLL5 Soul Meteo, South Korea

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

7433.5 kHz HLL5 Soul Meteo, South Korea

5100.0 kHz VMC Charleville Meteo QLD, Australia

5100.0 kHz VMC Charleville Meteo QLD, Australia

4209.5 kHz XVN Nha Trang Radio, Viet Nam

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

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

17919.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-20CJ + B-30CV + B-2750 + B-6432 + B-6545 + B-8358 + B-18909
TPEOD = Taipei Operational Department
A NOTAM decoder can be found e.g. here

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

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

8942.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft VP-BAE + 5Y-CYB

8942.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft B-KQA + SU-GEB + SU-GEE + SU-GEG + VP-BLO + VP-BPX + VQ-BRW + 9V-SHK
Route planning URKA - UUEE ...
DT = Destination, followed by the runway number
FN = Flight Number
REQPRG = Request Flight Progress Report
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

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

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

4209.5 kHz SVH Iraklion Radio, Greece

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

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

490.0 kHz VCO Canadian Coast Guard Port Caledonia NS, Canada

4209.5 kHz XSQ Guangzhou Radio, China
Warnings still in force - received 260100Z APR 2021

16953.3 kHz 6WW French Navy Dakar, Senegal
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

15991.7 kHz Egyptian diplomatic station

13270.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft B-305K + B-2289 + JA837A + VN-A226
ATSU = Air Traffic Service Unit
CFB = Centralized Fault Book
CFDS = Centralized Fault Display System
DA = Departure Airport
DM = Time Stamp
DS = Destination Airport
FR = Fault Report
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

13270.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft B-6457 + flight CSH942

16971.0 kHz JJC Kyodo Tsushin Tokyo, Japan

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

8310.5 kHz XSQ Guangzhou Radio, China
New radiofax service, schedule see here

16971.0 kHz JJC Kyodo Tsushin Tokyo, Japan

17919.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-30C7 + B-302W + B-309Q + B-8385 + N854FD
Flight parameters ZSPD - EDDF ...
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

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

10081.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft N620UP + VP-BOC + VP-BQQ + VP-BTI + VQ-BTT
CFB = Centralized Fault Book
DT = Destination, followed by the runway number
FLR = Flight Recorder
FR = Fault Report
FN = Flight Number
MMR = Multi-Mode Receiver
REQPRG = Request Flight Progress Report
TI2 = Terminal Information Request
TOBT = Target Off Block Time
TTOT = Target Take Off Time
WN = Warning Number
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

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

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

10081.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + flight DP0340

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

8459.0 kHz NOJ United States Coast Guard Kodiak, Alaska

5100.0 kHz VMC Charleville Meteo QLD, Australia

4272.8 kHz FUJ French Navy Noumea, New Caledonia

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + flight FDX523

518.0 kHz EAV Valencia Radio, Spain

518.0 kHz UUI Odessa Radio, Ukraine

518.0 kHz LFO Oerlandet Radio, Norway

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

Severe Tropical Storm = Super Typhoon Bising = Surigae ...

5451.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft A7-BGB + B-8856 + HL7747 + N854FD + 9V-SCF + flight MU7554
Enroute weather ZGHY - ZLXY ...
DT = Destination, followed by the runway number
FN = Flight Number
TS = Time Stamp
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

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

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

5583.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft B-8360 + JA921A + + 9V-SHA + flight ANA880
ADC = Air Defence Clearance
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FMH = Facilities Message Header = Flight Number
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

17919.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-30DA + B-6013 + B-8976 + EC-MXV + HZ-NS33 + JA921A + N419MC + P4-KBK
N419MC = RJAA runway lengths ...
P4-KBK = wind forecast for FL 370 390 ...
PWI = Wind Forecast
RESPWI = Wind Forecast Request
TI2 = Terminal Information Request

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

518.0 kHz 9WW21 Miri Radio, Sarawak, Malaysia
Kuching? Ini stesen baru lah??
Test messages received 171510Z APR 2021

17919.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-30AE + B-1540 + B-6545 + N29981 + 9V-SMH + 9V-SMP
Enroute weather ZSPD - KLAX ...
CFD = Centralized Fault Data
TI2 = Terminal Information Request
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FAR ADS = Facilities Application Response ADS-C
FAR ATC = Facilities Application Response CPDLC
FMH = Facilities Message Header = Flight Number
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

17919.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + flight CES275

8939.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft B-30DC + B-305J + B-1016 + B-1033 + HZ-NS22

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

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

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

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

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

518.0 kHz Grimeton Radio, Sweden

518.0 kHz GCC Cullercoats Radio, United Kingdom

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

8977.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft VP-BCA + VQ-BKU

5195.0 kHz DRA5 Kiel, Germany

4209.5 kHz XVG Hai Phong Radio, Viet Nam

7396.7 kHz HSW64 Bangkok Meteo, Thailand

490.0 kHz IQM Mondolfo Radio, Italy

490.0 kHz OST Oostende Radio, Belgium

518.0 kHz 9HD Valetta Radio, Malta
TM = Tele Malta

518.0 kHz VBR Canadian Coast Ferndale ONT, Canada

8658.0 kHz JFX Kagoshima Fisheries Radio, Japan
Japanese Coast Guard navigational warnings for NAVAREAs 10 11
The date reads 3 4 9 = 2021 April 9
since the Japanese calendar year in the Reiwa Era is used here
Formula: Reiwa year + 2018 = Gregorian year
Tentative schedule see here

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft B-304D + JA11KZ + N612UP
Code figures for PANC runways braking action - see e.g. here
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

518.0 kHz UFL Vladivostok Radio SE, Russian Federation
Warnings still in force - received 081200Z APR 2021

13342.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft B-305J + B-2485 + B-6329 + B-9921
HCC = Hub Control Center

518.0 kHz NMC United States Coast Guard San Francisco CA, United States of America
Somewhat outdated ... received 070820Z APR 2021

11318.0 kHz ACARS/HFDL H13 Santa Cruz Air, Bolivia, + aircraft A7-BAM + B-1028 + B-2292 + D-AICF + PR-MAK
DOW = Dry Operating Weight
MAC... = Mean Aerodynamic Chord ...
SI = Supplementary Information
TIF = Trip Fuel
UM169 is a critical procedure, designed to prevent pilots
from acting on any old CPDLC messages
that might have been delayed in the network
The most serious of such cases would be
the pilot executing a clearance that was no longer valid
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

8040.0 kHz GYA Royal Navy London, United Kingdom

8040.0 kHz GYA Royal Navy London, United Kingdom

4219.0 kHz XSQ Guangzhou Radio, China
Characters in brackets denote the Latin alphabet
The four-figure groups without brackets
are Chinese ideographs -
see page 48 ff. in our Radio Data Code Manual

8416.5 kHz UAT Moscow Radio, Russian Federation

12579.0 kHz NMF United States Coast Guard Boston MA, United States of America

518.0 kHz L2N Argentinian Coast Guard Bahia Blanca, Argentina

3585.0 kHz HLL8 Soul Meteo, South Korea

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

8314.0 kHz Digital data station, Japan

4209.5 kHz XSG Shanghai Radio, China

5100.0 kHz VMC Charleville Meteo QLD, Australia

5100.0 kHz VMC Charleville Meteo QLD, Australia

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

5583.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft N612UP + 9V-SGF + 9V-SMU
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

8912.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft N130FE + N584FE + N613UP
MEL = Minimum Equipment List
MFWF = Minimum Flight Weight Fuel
TI2 = Terminal Information Request
TOCG = Take Off Centre of Gravity
ZFCG = Zero Fuel Centre of Gravity

8425.5 kHz XSG Shanghai Radio, China

518.0 kHz JNB Naha Radio, Okinawa Island, Japan

518.0 kHz LZW Varna Radio, Bulgaria

518.0 kHz OXJ Torshavn Radio, Faroe Islands, Denmark

518.0 kHz DDH9 Hamburg Meteo, Germany

518.0 kHz Magallanes Radio, Chile

8416.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina
Warnings still in force - received 28 MAR 2021

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

518.0 kHz 4XO Haifa Radio, Israel

518.0 kHz Izmir Radio, Turkey

518.0 kHz Antalya Radio, Turkey

17928.0 kHz ACARS/HFDL H17 Telde Air, Canary Islands, + aircraft SU-GDX + SU-GEI + VP-BIF
DT = Destination, followed by the runway number
FN = Flight Number
TOBT = Target Off Block Time
TTOT = Target Take Off Time
PRG = Flight Progress Report sent shortly
(i.e. 1 hour - 10 minutes) before arrival,
typically including destination airport followed by
estimated runway for landing, estimated FOB, ETA, and FN

11348.0 kHz ACARS/HFDL H17 Telde Air, Canary Islands, + flight ACA722

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

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

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

4227.5 kHz IDR Italian Navy Rome, Italy

13988.5 kHz JMH4 Tokyo Meteo, Japan

5583.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft B-18908 + flight EVA316

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

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

518.0 kHz 5BA Nicosia Radio, Cyprus

518.0 kHz Sellia Marina Radio, Italy
Ragazzi, la lingua nazionale dev'essere trasmessa sulle 490 kHz
e non sulle 518 kHz ... Te capì? Sperumma!
Saluti Giorgio www.rimella.com in Valsesiano ...

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

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

8699.2 kHz CTA North Atlantic Treaty Organization Lisbon, Portugal

7535.0 kHz VMW Wiluna Meteo WA, Australia

16806.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina

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

518.0 kHz SVL Limnos Radio, Greece

16559.0 kHz XSG Shanghai Radio, China

16559.0 kHz XSG Shanghai Radio, China

518.0 kHz PBK Netherlands Coast Guard Ijmuiden, Netherlands

518.0 kHz GPK Portpatrick Radio, United Kingdom

8454.8 kHz FUG French Navy Saissac, France

12579.0 kHz UAT Moscow Radio, Russian Federation

518.0 kHz JNL Otaru Radio, Japan

8302.0 kHz XSG Shanghai Radio, China

8302.0 kHz XSG Shanghai Radio, China

11039.0 kHz DDH9 Hamburg Meteo, Germany

490.0 kHz EAR La Coruna Radio, Spain

490.0 kHz EJM Irish Coast Guard Malin Head, Ireland

8459.0 kHz NOJ United States Coast Guard Kodiak, Alaska

10084.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft B-322J + HL7794 + N623UP + flight SIA33

4209.5 kHz TAH Istanbul Radio, Turkey

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

518.0 kHz NMO United States Coast Guard Honolulu, Hawaii

6450.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil
Unknown meteorological code ...

518.0 kHz SUZ Serapeum Radio, Egypt

518.0 kHz TFX Siglufjördur Radio, Iceland

10084.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft B-308W + B-6167 + VP-BJW
TOBT = Target Off Block Time
TTOT = Target Take Off Time

13570.0 kHz HLL5 Soul Meteo, South Korea

6589.0 kHz ACARS/HFDL H11 Panama City Air, Panama, + aircraft B-2092 + N108FE + N420LA + N538LA
The Periodic Contract is a report sent every ... minutes
It specifies the reporting rate at which the avionics is required
to assemble and downlink the requested information to the ground system
The minimum reporting rate is usually not greater than every 14 minutes
but can vary to suit the need of the ground station
This procedure allows longitudinal and lateral separation of aircraft
in oceanic areas to be reduced to 30 nautical miles each

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

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

518.0 kHz XSG Shanghai Radio, China

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

3247.4 kHz ZKLF Auckland Meteo, New Zealand

518.0 kHz Vakalpudi Radio, India

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

3585.0 kHz HLL8 Soul Meteo, South Korea

518.0 kHz VCG Canadian Coast Guard Moisie QUE, Canada

4272.8 kHz FUJ French Navy Noumea, New Caledonia

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

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

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

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

518.0 kHz SVK Kerkyra Radio, Greece

3855.0 kHz DDH3 Hamburg Meteo, Germany

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

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

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

518.0 kHz UFO Kholmsk Radio SE, Russian Federation

518.0 kHz Byunsan Radio, South Korea

5502.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft JA11VA + SP-LSE + VP-BLN + VQ-BEG + VQ-BMX
ZBAA runway lengths, according to the rapid exit taxiway used ...

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

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

2610.2 kHz FUO French Navy Toulon, France

490.0 kHz GNI Niton Radio, United Kingdom

490.0 kHz 9AS Split Radio, Croatia

6220.0 kHz IDN Italian Navy Napoli, Italy

10084.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft B-30DK + B-8490 + N889FD + VP-BUO
CBDO = Cabin Door Open
CGDO = Cargo Door Open
DA = Departure Airport
DM = Time Stamp
DS = Destination Airport
LLD = Large Lateral Deviation = 10 NM or more without ATC approval

518.0 kHz ESA Tallinn Radio, Estonia

518.0 kHz EJK Irish Coast Guard Valentia, Ireland

518.0 kHz 3VL Kelibia Radio, Tunisia

16135.0 kHz KVM70 Honolulu Meteo, Hawaii

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

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

7795.0 kHz JMH2 Tokyo Meteo, Japan

8948.0 kHz ACARS/HFDL H17 Telde Air, Canary Islands, + aircraft HZ-AQL + HZ-NS24 + JY-AYN + VQ-BTT + 9N-ALM
AFS = Auto Flight System
BSCU = Brake System Control Unit
FLR = Flight Recorder
FR = Fault Report
WN = Warning Number

8948.0 kHz ACARS/HFDL H17 Telde Air, Canary Islands, + aircraft JY-AYN + N508DN + N877FD + P4-KBF
FLR = Flight Recorder
FLSCU = Fuel Level Sensing Control Unit
FR = Fault Report
MMR = Multi-Mode Receiver
SSU = System Sensor Unit

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

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

518.0 kHz JNX Kushiro Radio, Japan

518.0 kHz EQM Bushire Radio, Iran

490.0 kHz Taganrog Radio, Russian Federation

518.0 kHz EQI Abbas Radio, Iran

518.0 kHz Gislovshammar Radio, Sweden

13315.0 kHz ACARS/HFDL H13 Santa Cruz Air, Bolivia, + aircraft EC-MXV + PR-TYK + flight LAN958
WN = Warning Number

17916.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft N621UP + N842FD
The Periodic Contract is a report sent every ... minutes
It specifies the reporting rate at which the avionics is required
to assemble and downlink the requested information to the ground system
The minimum reporting rate is usually not greater than every 14 minutes
but can vary to suit the need of the ground station
This procedure allows longitudinal and lateral separation of aircraft
in oceanic areas to be reduced to 30 nautical miles each

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

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

7880.0 kHz DDK3 Hamburg Meteo, Germany

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

8424.0 kHz UDK Murmansk Radio, Russian Federation

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

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

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

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

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

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

518.0 kHz LGT Tjoeme Radio, Norway

518.0 kHz UHY Murmansk Radio, Russian Federation

518.0 kHz EAL Las Palmas Radio, Canary Islands

518.0 kHz UDN Novorossiysk Radio, Russian Federation

518.0 kHz RFA Astrakhan Radio, Russian Federation

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

518.0 kHz XSI Sanya Radio, China

518.0 kHz L3I Argentinian Coast Guard Rio Gallegos, Argentina

518.0 kHz L3O Argentinian Coast Guard Ushuaia, Argentina

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

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

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

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

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

518.0 kHz Grindavik Radio, Iceland

518.0 kHz Bjuroklubb Radio, Sweden

7396.7 kHz HSW64 Bangkok Meteo, Thailand

8302.0 kHz XSG Shanghai Radio, China

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

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

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

490.0 kHz UON Baku Radio, Azerbaijan

6422.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

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

6349.8 kHz FUE French Navy Brest, France

8106.9 kHz SWA28 Athens Meteo, Greece
New schedule see here

8106.9 kHz SWA28 Athens Meteo, Greece
New schedule see here

8106.9 kHz SWA28 Athens Meteo, Greece
New schedule see here

3247.4 kHz ZKLF Auckland Meteo, New Zealand

7795.0 kHz JMH2 Tokyo Meteo, Japan

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

3855.0 kHz DDH3 Hamburg Meteo, Germany

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

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

16559.0 kHz XSG Shanghai Radio, China

16559.0 kHz XSG Shanghai Radio, China

10093.0 kHz ACARS/HFDL H09 Barrow Air, Alaska, + flight UPS33

12235.0 kHz 7CB Indonesian Navy Belawan, Indonesia

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

16067.7 kHz Ministry of Foreign Affairs Cairo, Egypt

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

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

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

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

State-of-the-art digital data signals have been tested since 2013
by innovative broadcast stations such as the Voice of America ...
Here's a 6067.1 kHz MFSK-16 emission on the lower sideband
of AM station Channel 292 transmitting both sidebands
2900 Hz from the carrier frequency 6070.0 kHz
New 2021 edition of our Perseus Frequency Database
now shows utility stations' callsigns as well!

8454.8 kHz FUG French Navy Saissac, France
New 2021 edition of our Perseus Frequency Database
now shows utility stations' callsigns as well!

6095.0 kHz Broadcast (!) radio station KBC, Netherlands via Germany
testing state-of-the-art digital data signals
such as parallel MFSK emissions on 6093.5 and 6096.5 kHz
i.e. on both sidebands 1500 Hz from the carrier frequency 6095.0 kHz
New 2021 edition of our Perseus Frequency Database
now shows utility stations' callsigns as well!

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

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

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

More than 21,000 (twenty one thousand!) fascinating screenshots are available on our unique Digital Data Decoder Screenshots USB Stick!