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.


518.0 kHz EJM Irish Coast Guard Malin Head, Ireland

6652.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-208R + N623UP + RPC3501 + flight HVN552
Message U08A is not corrupted, but encrypted ...
PB = Parking Bay
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

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

518.0 kHz Arkhangelsk Radio, Russian Federation

518.0 kHz Grimeton Radio, Sweden

5100.0 kHz VMC Charleville Meteo QLD, Australia

6251.0 kHz Digital data station, Japan

5514.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-6140 + B-8958
A NOTAM decoder can be found e.g. here

5514.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-LJL + B-LJM + N623UP + N878FD
The Waypoint Change Event is triggered by a change
made to the Next, or the Next-plus-one waypoint
This change normally occurs due to normal waypoint sequencing by the FMS
The Next or Next-plus-one waypoint can be either an ATS waypoint or a pilot inserted waypoint

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

The codes of ACARS Message Labels can be found here
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

8416.5 kHz NMO United States Coast Guard Honolulu, Hawaii

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

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

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

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

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

490.0 kHz Taganrog Radio, Russian Federation - first test message received 26 AUG 2020!

490.0 kHz EAL Las Palmas Radio, Canary Islands

6619.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft EP-MMI + RPC8398 + flight CCA632
CIDS = Cabin Intercommunication Data System
DOI = Dry Operating Index
Loadsheet CGY - DGT
Howgoesit RPLL - RPMY

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

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

4209.5 kHz XVG Hai Phong Radio, Viet Nam

13270.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft B-308P + B-6361 + PK-GFE + VN-A623 + 9V-SCJ + flight UPS61
DA = Departure Airport
DM = Time Stamp Russian Style: 201127094600 = 27 NOV 2020 0946:00
DS = Destination Airport
The airspace volume around an aircraft is defined
as a horizontal shape with a floor and ceiling height

17919.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-LNY + B-6906 + VN-A619

8977.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft CS-TKQ + 5A-WLA + 9H-PPE
CIDS = Cabin Intercommunication Data System
DA = Departure Airport
DAR = Data Access Recorder
DMU = Data Management Unit
DS = Destination Airport
ECU = Electronic Control Unit
EIU = Engine Interface Unit
FADEC = Full Authority Digital Engine Control
FR = Fault Report
IFE = In-Flight Entertainment
PISA = Passenger Interface and Supply Adapter
WN = Warning Number
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FCO ADS = Facilities Contact ADS-C
FCO ATC = Facilities Contact CPDLC
FMH = Facilities Message Header = Flight Number
FPO = Facilities Current Position
The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found here

5067.8 kHz Digital data station

518.0 kHz IQM Mondolfo Radio, Italy

518.0 kHz PBK Netherlands Coast Guard Ijmuiden, Netherlands

10081.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft B-30D8 + F-WWBL + G-VCRU + HZ-NS23 + SU-GDA + flight QTR5CF
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 each

518.0 kHz JNX Kushiro Radio, Japan

3585.0 kHz HLL8 Soul Meteo, South Korea

5508.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft N573UP + N609UP
ECS = Environmental Control System

10084.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft B-304N + B-2091 + B-6891 + DQ-FJW + JA833A
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FCO ADS = Facilities Contact ADS-C
FCO ATC = Facilities Contact CPDLC
FMH = Facilities Message Header = Flight Number
FPO = Facilities Current Position
The 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
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

4209.5 kHz XSV Tianjin Radio, China

11312.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-6140 + N609UP + N618UP + N877FD + flight CCA655
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 CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

4209.5 kHz XVG Hai Phong Radio, Viet Nam

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft B-1297 + B-6140 + HL8293 + N570UP + N607UP + N609UP
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

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

518.0 kHz A9M Hamala Radio, Bahrain
Warnings still in force - received 242010Z NOV 2020
MENAS = Middle East Navigation Aids Service
MEGULITE = Middle East Gulf Lighting Service

11312.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-LJA + N614UP + N869FD + XA-ADH
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 CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

11312.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft JY-AYN + N578UP + N614UP + P4-KGB + VQ-BTT
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FCA = Facilities Contact Authority
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

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

8424.0 kHz SVO Olympia Radio, Athens, Greece

518.0 kHz JNR Moji Radio, Japan

3855.0 kHz DDH3 Hamburg Meteo, Germany

5514.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-20AA + B-2419 + N877FD + 9V-SML
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

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

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

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

518.0 kHz OXJ Torshavn Radio, Faroe Islands, Denmark

518.0 kHz SUZ Serapeum Radio, Egypt

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

8416.5 kHz NMO United States Coast Guard Honolulu, Hawaii

6565.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-305X + N897FD + XA-ADL + flight UPS763
The Periodic Contract is a report sent every ... minutes
It specifies the reporting rate at which the avionics is required
to assemble and downlink the requested information to the ground system
The minimum reporting rate is usually not greater than every 14 minutes
but can vary to suit the need of the ground station
This procedure allows longitudinal and lateral separation of aircraft
in oceanic areas to be reduced to 30 nautical miles each

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

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

7880.0 kHz DDK3 Hamburg Meteo, Germany

518.0 kHz 4XO Haifa Radio, Israel

3622.5 kHz JMH Tokyo Meteo, Japan

3622.5 kHz JMH Tokyo Meteo, Japan

3622.5 kHz JMH Tokyo Meteo, Japan

5502.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft HL7639 + N506DN + flight QTR898
The Waypoint Change Event is triggered by a change
made to the Next, or the Next-plus-one waypoint
This change normally occurs due to normal waypoint sequencing by the FMS
The Next or Next-plus-one waypoint can be either an ATS waypoint or a pilot inserted waypoint

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

9165.0 kHz HLL Soul Meteo, South Korea

518.0 kHz DDH9 Hamburg Meteo, Germany

518.0 kHz GNI Niton Radio, United Kingdom

518.0 kHz 7TA El Djaza'ir Radio, Algeria

8416.5 kHz LGS Svalbard Radio, Spitsbergen, Norway

5514.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft HL7795 + JA04VA + N507DN + N570UP + flight MM0417

518.0 kHz NOJ United States Coast Guard Kodiak, Alaska

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

13270.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft N614UP + PK-GNA + 9V-SHI + 9V-SJA + flight CSC838
The Periodic Contract is a report sent every ... minutes
It specifies the reporting rate at which the avionics is required
to assemble and downlink the requested information to the ground system
The minimum reporting rate is usually not greater than every 14 minutes
but can vary to suit the need of the ground station
This procedure allows longitudinal and lateral separation of aircraft
in oceanic areas to be reduced to 30 nautical miles each

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

16959.8 kHz FUJ French Navy Noumea, New Caledonia

518.0 kHz L2T Argentinian Coast Guard Mar del Plata, Argentina

4209.5 kHz XSQ Guangzhou Radio, China
Erroneous DTG should read LT on the 19th -
transmission was received at 1700 UTC on the 18th!

5100.0 kHz VMC Charleville Meteo QLD, Australia

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft C-FITW + HL8258 + N507DN + N514DN

518.0 kHz VAE Canadian Coast Guard Tofino BC, Canada

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

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

11312.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft EC-NIG + HL7639 + N612UP
Climb clearance within 35 seconds ... via HF!
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

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft B-6543 + N608UP
PHNL runway lengths ...
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 CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

6652.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-307C + B-308L + B-2289 + VQ-BVR
B-308L: Parameters RJBB-ZUUU ...

8424.0 kHz SVO Olympia Radio, Athens, Greece

518.0 kHz LFO Oerlandet Radio, Norway

518.0 kHz 9AS Split Radio, Croatia

4209.5 kHz XSG Shanghai Radio, China

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

8431.0 kHz TAH Istanbul Radio, Turkey

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

3585.0 kHz HLL8 Soul Meteo, South Korea

3585.0 kHz HLL Soul Meteo, South Korea

10060.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft B-2300 + B-6140 + flight CES217 + CXA 839

7901.8 kHz Digital data station

7748.3 kHz TBB Turkish Navy Ankara, Turkey

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

2474.0 kHz PBB Dutch Navy Den Helder, Netherlands

6652.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft A6-DDB + B-7838 + HL7746
AA = Arrival Airport
DA = Departure Airport
SASAN is the waypoint for western arrivals at ZSPD's TMA for RWY 35L

19688.0 kHz Digital data station

16953.3 kHz 6WW French Navy Dakar, Senegal

12579.0 kHz UAT Moscow Radio, Russian Federation

11387.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft A6-EOV + B-LJA + B-6543 + ET-AXK + ET-AXS + N283NV
UM169 is a new 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
Enroute weather ZSFZ - KLAX ...
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

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

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

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft B-LJK + B-304D + B-6543 + N419MC + N591FE + 9S3642
ECS = Environmental Control System
EPCU = Electrical Power Control Unit
ESC = Environmental System Controller
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

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

5502.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft B-LXC + HZ-NS28 + N570UP
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

The codes of ACARS Message Labels can be found here
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

7795.0 kHz JMH2 Tokyo Meteo, Japan
The next one ... STS (Severe Tropical Storm) VAMCO

8416.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina

8416.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina

8416.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina

10081.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft PR-YYL
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
SQL (Structured Query Language) filter allows precise selection
of certain results out of hundreds of decoded messages

8948.0 kHz ACARS/HFDL H17 Telde Air, Canary Islands, + aircraft A7-AMI + B-308P + F-HRBD + HP1837
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft N617UP + flight OZ7143
LAHSO = Land And Hold Short Operations

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft EC-MYX + HL8259

518.0 kHz JNB Naha Radio, Okinawa Island, Japan

10084.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft HL7740 + UK32021

10084.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft B-6140 + B-8693 + B-18906 + VN-A589 + flight CES525
Message M83A is slightly corrupted
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

12711.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

8977.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft JA879A + SU-GEA + VP-BFG + VP-BQB + flight ANA472

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

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

4209.5 kHz XVN Nha Thrang Radio, Viet Nam

6529.0 kHz ACARS/HFDL H17 Telde Air, Canary Islands, + aircraft N12006
KEWR - LFPG L/R engine data ...

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

5100.0 kHz VMC Charleville Meteo QLD, Australia
Typhoon ATSANI ...

5100.0 kHz VMC Charleville Meteo QLD, Australia
Typhoon GONI ...

11039.0 kHz DDH9 Hamburg Meteo, Germany

10081.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft F-WZFV + F-WZNT + VP-BEO
Parameters ...
DFD = Digital Flight Data
F-WZFV is an Airbus A350-941 test flight near To Loose ;-))
for ALAFCO, Kuwait's Aviation Lease and Finance Company
F-WZNT dito to become ET-AYA for Ethiopian Airlines

8424.0 kHz UDK Murmansk Radio, Russian Federation
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

518.0 kHz UFL Vladivostok Radio SE, Russian Federation

3622.5 kHz JMH Tokyo Meteo, Japan
Typhoons GONI ... ATSANI ...

490.0 kHz XVT Da Nang Radio, Viet Nam

4681.0 kHz ACARS/HFDL H08 Johannesburg Air, South Africa (Republic of), + aircraft 9V-SHB + 9V-SMB
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

The codes of ACARS Message Labels can be found 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

8459.0 kHz NOJ United States Coast Guard Kodiak, Alaska

8459.0 kHz NOJ United States Coast Guard Kodiak, Alaska

8459.0 kHz NOJ United States Coast Guard Kodiak, Alaska

4346.0 kHz NMC United States Coast Guard San Francisco CA, United States of America
Right-hand margin cut off by them there chaps ...
ITCZ = Inter-Tropical Convergence Zone

5502.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft B-30CV + B-304N + B-2091 + B-6460 + B-8977 + N104FE + N853FD
DFD = Digital Flight Data
ECS = Environmental Control System
The codes of FIRs providing data link services
such as EGGX PAZN YMMM ANC____ FUK____ YUK____
can be found 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

10081.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft B-6011 + HZ-NS28 + JY-AYN + VQ-BHV + VQ-BIR + 5A-WLA + flight CES298 + CSC850
AFS = Auto Flight System
MMR = Multi-Mode Receiver

3585.0 kHz HLL8 Soul Meteo, South Korea

6394.0 kHz Digital data station, Japan

16559.0 kHz XSG Shanghai Radio, China
The next one ... GONI

16559.0 kHz XSG Shanghai Radio, China

16559.0 kHz XSG Shanghai Radio, China

16559.0 kHz XSG Shanghai Radio, China

16880.0 kHz XSQ Guangzhou Radio, China

518.0 kHz JNL Otaru Radio, Japan

518.0 kHz UFO Kholmsk Radio SE, Russian Federation

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!
Tak boleh tahan lah!!

MOLAVE - the most intense STS (Severe Tropical Storm) since 2000 ...

8454.8 kHz FUG French Navy Saissac, France

11086.5 kHz GYA Royal Navy London, United Kingdom

8425.5 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

518.0 kHz GPK Portpatrick Radio, United Kingdom

4209.5 kHz XSQ Guangzhou Radio, China
Tropical depression Saudel ...
Tropical storm Molave ...

3585.0 kHz HLL8 Soul Meteo, South Korea
Tropical storm Molave ...

3585.0 kHz HLL8 Soul Meteo, South Korea

518.0 kHz XVS Ho Chi Minh City Radio, Viet Nam

518.0 kHz HSA Bangkok Radio, Thailand

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

518.0 kHz Byunsan Radio, South Korea

518.0 kHz JGC Yokohama Radio, Japan

6619.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft B-LJD + JA16KZ + flight CSC862
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 pertinent VAA by VAAC Tokyo ...

10084.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft B-30FT + B-1885 + B-18915 + JA825A + 9V-SHH + flight CES649 + CCA173
The Periodic Contract is a report sent every ... minutes
It specifies the reporting rate at which the avionics is required
to assemble and downlink the requested information to the ground system
The minimum reporting rate is usually not greater than every 14 minutes
but can vary to suit the need of the ground station
This procedure allows longitudinal and lateral separation of aircraft
in oceanic areas to be reduced to 30 nautical miles each

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

518.0 kHz VOK Canadian Coast Guard Cartwright, NFLD, Canada

7795.0 kHz JMH2 Tokyo Meteo, Japan

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

518.0 kHz 9WW21 Miri Radio, Sarawak, Malaysia
Header should read 13 OCT ...
Tak boleh tahan lah!

11184.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft SU-GEK
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 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

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

11184.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft B-LID
LDA 4500 metres ...

11184.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft N20904 + 7O-AFB
Perfect OOOI ...

4209.5 kHz XVN Nha Thrang Radio, Viet Nam

6535.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft B-LIE + flight GES968

12666.3 kHz FUM French Navy Papeete, Tahiti, Polynesia (French)

5720.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft A7-AMJ + N616UP + flight QTR713
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

The codes of ACARS Message Labels can be found 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

3247.4 kHz ZKLF Auckland Meteo, New Zealand

5195.0 kHz DRA5 Kiel, Germany
CW / PSK-31 / ITA2

8582.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

11184.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft JY-AYR

6661.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft B-308W + B-1311 + N506DN
FAI is a thunderstorm zone over Nunavut, Canada

6943.7 kHz Digital data station

8582.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

5583.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft B-20AA + B-18916
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

518.0 kHz Sellia Marina Radio, Italy

518.0 kHz 3VL Kelibia Radio, Tunisia

518.0 kHz NMC United States Coast Guard San Francisco CA, United States of America
Haida Gwaii is the new native name for the former Queen Charlotte Islands

518.0 kHz Gislovshammar Radio, Sweden

518.0 kHz ICH Italian Coast Guard La Maddalena Island, Italy

518.0 kHz SVL Limnos Radio, Greece

518.0 kHz OST Oostende Radio, Belgium

8425.5 kHz XSG Shanghai Radio, China

16971.0 kHz JJC Kyodo Tsushin Tokyo, Japan

490.0 kHz UUI Odessa Radio, Ukraine

4349.7 kHz Digital data station
The four-figure groups are Chinese ideographs -
see page 48 ff. in our Radio Data Code Manual

518.0 kHz ESA Tallinn Radio, Estonia

10075.0 kHz ACARS/HFDL H15 Muhurroq Air, Bahrain, + aircraft P4-KBC

7795.0 kHz JMH2 Tokyo Meteo, Japan

8416.5 kHz UAT Moscow Radio, Russian Federation

518.0 kHz 9HD Valetta Radio, Malta

518.0 kHz 5BA Nicosia Radio, Cyprus

518.0 kHz XSI Sanya Radio, China

518.0 kHz L3B Argentinian Coast Guard Comodoro Rivadavia, Argentina

6349.8 kHz FUE French Navy Brest, France

11086.5 kHz GYA Royal Navy London, United Kingdom

518.0 kHz L2G Argentinian Coast Guard Buenos Aires, Argentina

7880.0 kHz DDK3 Hamburg Meteo, Germany

8416.5 kHz VFF Canadian Coast Guard Iqaluit NUN, Canada

8416.5 kHz VFF Canadian Coast Guard Iqaluit NUN, Canada

518.0 kHz PKX Jakarta Radio, Indonesia

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

7795.0 kHz JMH2 Tokyo Meteo, Japan

8459.0 kHz NOJ United States Coast Guard Kodiak, Alaska

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

10075.0 kHz ACARS/HFDL H15 Muhurroq Air, Bahrain, + aircraft HZ-NS29 + JY-AYV + SU-GCN + VP-BPL
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

8885.0 kHz ACARS/HFDL H15 Muhurroq Air, Bahrain, + aircraft EC-NCK
So what the hell are these Wamos Air charter chaps operating
with several (!) unreliable navigation systems in a war zone
picking up US troops out of the AFG hellhole to LEMD?
IR = Inertial Reference
MMR = Multi-Mode Receiver
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

16971.0 kHz JJC Kyodo Tsushin Tokyo, Japan

16971.0 kHz JJC Kyodo Tsushin Tokyo, Japan

6652.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + flight CES288

518.0 kHz XSZ Dalian Radio, China

8658.0 kHz JFW Fukushima Fisheries Radio, Japan
Satellite settings for JRC FURUNO fish finder equipment?

8885.0 kHz ACARS/HFDL H15 Muhurroq Air, Bahrain, + aircraft VP-BAY + VP-BEW + VQ-BTT

6330.5 kHz OSY Sailmail Radio, Brugge, Belgium
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

13342.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + flight CSC897

5100.0 kHz VMC Charleville Meteo QLD, Australia

5100.0 kHz VMC Charleville Meteo QLD, Australia

5100.0 kHz VMC Charleville Meteo QLD, Australia

518.0 kHz PKF Ujung Pandang Radio, Indonesia
Ship tracks ETA Berhanti Horseburgh Raffles etc lighthouses ...

8677.0 kHz CBV Valparaiso Radio, Chile

8677.0 kHz CBV Valparaiso Radio, Chile

518.0 kHz ZSQ Port Elizabeth Radio, South Africa (Republic of)

518.0 kHz RFA Astrakhan Radio, Russian Federation

518.0 kHz LZW Varna Radio, Bulgaria

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

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

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

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + flight LAN198

518.0 kHz 9MG Georgetown Radio, Pinang Island, Malaysia

16971.0 kHz JJC Kyodo Tsushin Tokyo, Japan

3855.0 kHz DDH3 Hamburg Meteo, Germany

8040.0 kHz GYA Royal Navy London, United Kingdom

8040.0 kHz GYA Royal Navy London, United Kingdom

11184.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft JA880A + N609UP + 9V-SHB
The CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here or here

6661.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + flight FX0303

518.0 kHz EQM Bushire Radio, Iran

5583.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + flight ANA835

10100.8 kHz DDK9 Hamburg Meteo, Germany
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

8459.0 kHz NOJ United States Coast Guard Kodiak, Alaska

8416.5 kHz UFZ Vladivostok Radio SE, Russian Federation

11086.5 kHz GYA Royal Navy London, United Kingdom

8885.0 kHz ACARS/HFDL H15 Muhurroq Air, Bahrain, + aircraft A6-EIY + 5Y-KZH
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

7396.7 kHz HSW64 Bangkok Meteo, Thailand

8977.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft VP-BZO
DOI = Dry Operating Index
MAC... = Mean Aerodynamic Chord ...
SOC = Seats Occupied by Cargo

13270.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + flight QTR933

3585.0 kHz HLL8 Soul Meteo, South Korea

13324.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + flight CHH773

8113.5 kHz RMP Commonwealth of Independent States Navy Kaliningrad, Russian Federation

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

4681.0 kHz ACARS/HFDL H08 Johannesburg Air, South Africa (Republic of), + flight CPA749

10075.0 kHz ACARS/HFDL H15 Muhurroq Air, Bahrain, + aircraft VN-A893
AFDX = Avionics Full-Duplex Switched Ethernet

6825.0 kHz FAV22 French Army Mont-Valerien, France
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

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

3855.0 kHz DDH3 Hamburg Meteo, Germany

3855.0 kHz DDH3 Hamburg Meteo, Germany

13044.3 kHz FUV French Navy Jibuti, Djibouti

12235.0 kHz 7CB Indonesian Navy Belawan, Indonesia

16971.0 kHz JJC Kyodo Tsushin Tokyo, Japan
Tak boleh tahan lah!

11387.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft JA14KZ + VQ-BUB
Routing calculation ...
Airways J78 - J96 is a typical KLAX - KORD IFR route for FL390
T/C = Top of Climb
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

The codes of ACARS Message Labels can be found here

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

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

10075.0 kHz ACARS/HFDL H15 Muhurroq Air, Bahrain, + flight FDX980

3341.0 kHz FC8FEM Federal Emergency Management Agency Denver CO + FR9FEM Federal Emergency Management Agency Oakland CA + FC0FEM Federal Emergency Management Agency Bothell WA, United States of America

9982.5 kHz KVM70 Honolulu Meteo, Hawaii

9982.5 kHz KVM70 Honolulu Meteo, Hawaii

5583.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft B-LIC + JA884A
BTMS = Brake Temperature Monitoring System

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

518.0 kHz LGQ Rogaland Radio, Norway

16971.0 kHz JJC Kyodo Tsushin Tokyo, Japan

6589.0 kHz ACARS/HFDL H11 Panama City Air, Panama

8977.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + flight ETH706

8416.5 kHz SUZ Serapeum Radio, Egypt

10081.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + flight QTR898

518.0 kHz EAV Valencia Radio, Spain

518.0 kHz Izmir Radio, Turkey

17003.2 kHz CTA North Atlantic Treaty Organization Lisbon, Portugal

518.0 kHz SVK Kerkyra Radio, Greece

518.0 kHz EAR La Coruna Radio, Spain

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

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

518.0 kHz GCC Cullercoats Radio, United Kingdom

8454.0 kHz UIW Kaliningrad Radio, Russian Federation

8454.0 kHz UIW Kaliningrad Radio, Russian Federation
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

10543.0 kHz RCV Commonwealth of Independent States Navy Sevastopol', Ukraine
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

518.0 kHz XSG Shanghai Radio, China

518.0 kHz L2N Argentinian Coast Guard Bahia Blanca, Argentina

518.0 kHz VAU Canadian Coast Guard Chebogue NS, Canada

10093.0 kHz ACARS/HFDL H09 Barrow Air, Alaska, + aircraft B-LJD
Parameters ...
ECS = Environmental Control System

518.0 kHz EJK Irish Coast Guard Valentia, Ireland

8912.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft A7-ANA + C-GHPN + RPC8784 + VQ-BMY
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

The codes of ACARS Message Labels can be found 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

518.0 kHz NMO United States Coast Guard Honolulu, Hawaii

13321.0 kHz ACARS/HFDL H08 Johannesburg Air, South Africa (Republic of), + aircraft HZ-AQK + UR-CSU + 5Y-CYC + 9N-ALM
DA = Departure Airport
DAR = Data Access Recorder
DS = Destination Airport

518.0 kHz Parangipettai Radio, India

518.0 kHz Muttam Point Radio, India

518.0 kHz XSQ Guangzhou Radio, China

10093.0 kHz ACARS/HFDL H09 Barrow Air, Alaska, + aircraft VP-BLH + VP-BKQ + VQ-BMX

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

518.0 kHz Sandakan Radio, Sabah, Malaysia

8834.0 kHz ACARS/HFDL H08 Johannesburg Air, South Africa (Republic of), + aircraft G-XLEE + JY-AYV + PR-TYL + VT-IAS

518.0 kHz DZX Manila Radio, Philippines

8295.7 kHz KVM70 Honolulu Meteo, Hawaii
Frequency not scheduled ...
Chart incomplete, cut short by the station

16067.7 kHz Ministry of Foreign Affairs Cairo, Egypt

8295.7 kHz KVM70 Honolulu Meteo, Hawaii
Frequency not scheduled ...

8957.0 kHz ACARS/HFDL H13 Santa Cruz Air, Bolivia, + aircraft JA882A + PR-YYC
Perfect OOOI ...

8957.0 kHz ACARS/HFDL H13 Santa Cruz Air, Bolivia, + aircraft PR-YYH
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

518.0 kHz EQI Abbas Radio, Iran

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

518.0 kHz Vakalpudi Radio, India

7550.0 kHz All India Radio's DRM transmission
decoded with the new Kiwi-SDR extension feature

518.0 kHz UON Baku Radio, Azerbaijan

6661.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft N609FE

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

8319.0 kHz 4XZ Israeli Navy Haifa, Israel

3965.0 kHz Radio France International's DRM transmission
decoded with the new Kiwi-SDR extension feature
Among several nearby digital data signals, the sonagram shows
the CW exercise of the French Army at Mont-Valerien on 3881 kHz,
the HFDL aggregate of Reykjavik Air, Iceland, on 3900 kHz,
and a 50 Baud FSK emission on 4020 kHz

11318.0 kHz ACARS/HFDL H13 Santa Cruz Air, Bolivia, + flight SIA921

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

8957.0 kHz ACARS/HFDL H13 Santa Cruz Air, Bolivia, + aircraft JA04VA + N968AV + RPC8782 + VQ-BRH
A NOTAM decoder can be found e.g. here
AFN = ATS Facilities Notification (ATS = Air Traffic Service)
FAK = Facilities Acknowledgement Message
FCO ADS = Facilities Contact ADS-C
FCO ATC = Facilities Contact CPDLC
FMH = Facilities Message Header = Flight Number
FPO = Facilities Current Position
The 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
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 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

2815.0 kHz MKL Royal Air Force London, United Kingdom
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

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 2020 edition of our Perseus Frequency Database
now shows utility stations' callsigns as well!

8454.8 kHz FUG French Navy Saissac, France
New 2020 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 2020 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 20,000 (twenty thousand!) fascinating screenshots are available on our unique Digital Data Decoder Screenshots USB Stick!