Hot Frequencies and
Digital Data Transmission Screenshots

Shortwave utility radio stations, partly monitored during our recent Malaysia Mauritius Reunion Rodrigues Sarawak Singapore monitoring missions.


A new USB stick gives you more than 16,000 (sixteen thousand!) digital data decoder screenshots from our continuous HF radio monitoring between 1997 and today! See the brandnew 2019/2020 Guide to Utility Radio Stations for more information such as schedules and traffic details. All frequencies are in kHz, and all system times are UTC. Our guidebook Radiotelex Messages includes hundreds of similar screenshots; that unique collection will give you an excellent overview on the state of the art in this fascinating field: think of worldwide terrorist networks using HF e-mail! For good reasons we lay particular stress on the fact that all screenshots were directly supplied by co-operating COMINT and ELINT and SIGINT units, equipment manufacturers abroad, and foreign radio monitoring experts beyond the reach of teutonic jurisdiction (German "authorities" simply click here!): just send us a short e-mail and attach a standard .w40 or .w41 or .w51 or .w61 or .wda file, then we have even your system's timestamps! The following - very recent! - screenshots were taken and uploaded independently to this pooling webpage by our worldwide net of cooperators, using advanced equipment such as the superb PROCITEC and WAVECOM Digital Data Decoders.


17146.4 kHz NMG United States Coast Guard New Orleans LA, United States of America

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft DQ-FJW + HL7633 + XA-AMX
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 Figure Of Merit in the Basic Report describes the navigational accuracy
in a numerical code from 0 (worst accuracy) to 7 (best)

3622.5 kHz JMH Tokyo Meteo, Japan

5508.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft N407KZ + N777SA + VQ-BBG + VQ-BLR
KJFK ATIS for the ATLAS workhorse ...
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

5508.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft N407KZ
KJFK runway list for the ATLAS workhorse ...

518.0 kHz El Djaza'ir Radio, Algeria

518.0 kHz SVH Iraklion Radio, Greece

518.0 kHz UDN Novorossiysk Radio, Russian Federation

518.0 kHz IQM Mondolfo Radio, Italy

4209.5 kHz TAH Istanbul Radio, Turkey

8416.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina

8416.5 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina

8957.0 kHz ACARS/HFDL H13 Santa Cruz Air, Bolivia, + aircraft B-6476 + N965AM + N973AV + PR-OCV

4211.7 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina
ZAN nominal 4209.5 kHz!

4211.7 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina
ZAN nominal 4209.5 kHz!

5508.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft B-18915 + N587NW
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

8416.5 kHz UAT Moscow Radio, Russian Federation

8834.0 kHz ACARS/HFDL H08 Johannesburg Air, South Africa (Republic of), + aircraft ETD13R
Barrigada again on 8885 10075 (both ex Muhurroq frequencies - QRT?) and 13927???
No typo, appeared in several messages monitored!

10084.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft T7-MRE + VP-BQC + VQ-BCN
EDDF-OLBA flight dispatch message via New Zealand ? No joke!

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

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

8503.8 kHz NMG United States Coast Guard New Orleans LA, United States of America

11312.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-LRU
Apart from decoding ADS-C and CPDLC messages such as Periodic Reports,
the latest go2MONITOR digital data decoder software version JAN 2019
now displays meta-data such as sender and recipient identifications,
extracted from decoder result files

10081.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft HL7741 + N270UP + N861AM + VP-BLX
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

8927.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-8019 + PK-GFU + PK-GFZ + PK-GMS
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

8927.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft PK-GMS
Apart from decoding ADS-C and CPDLC messages such as Periodic Reports,
the latest go2MONITOR digital data decoder software version JAN 2019
now displays meta-data such as sender and recipient identifications,
extracted from decoder result files

518.0 kHz L2G Argentinian Coast Guard Buenos Aires, Argentina

518.0 kHz L2T Argentinian Coast Guard Mar del Plata, Argentina

490.0 kHz OST Oostende Radio, Belgium

490.0 kHz EJM Irish Coast Guard Malin Head, Ireland

490.0 kHz GNI Niton Radio, United Kingdom

7757.8 kHz Digital data station

8040.0 kHz GYA Royal Navy London, United Kingdom
Fading out ...

10313.8 kHz Digital data station
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

8454.8 kHz FUG French Navy Saissac, France
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

5514.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-300U + B-5902 + RPC8789
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

5514.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-303E + B-1140 + B-1540 + B-18910 + N586AS + N588AS + N862FD
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell 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

12853.0 kHz Digital data station

6532.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft ET-AOQ + VP-BFQ + VP-BTI + VQ-BVO + VQ-BWB
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

6532.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, and aircraft AT760R
Barrigada again on 8885 10075 (both ex Muhurroq frequencies - QRT?) and 13927???
No typo, appeared in several messages monitored!

5583.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft B-10632 + B-18906 + HL7615 + HL7640 + N453PA + RPC8786
GC( )GC = Ground Connections
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

5583.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft B-6538 + RPC8786
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

6483.3 kHz 9MR Malaysian Navy Johor Baharu, Malaysia
Shift is indeed 898 and not standard 850 Hz
Extremely bad FSK signal, as usual ...

3585.0 kHz Soul Meteo, Korea (Democratic Republic of)

518.0 kHz VBC Canadian Coast Guard Wiarton ONT, Canada

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

518.0 kHz VAJ Canadian Coast Guard Prince Rupert BC, Canada

518.0 kHz NMO United States Coast Guard Honolulu, Hawaii

6483.3 kHz 9MR Malaysian Navy Johor Baharu, Malaysia
Shift is indeed 898 and not standard 850 Hz
Extremely bad FSK signal, as usual ...

8125.0 kHz IDN Italian Navy Napoli, Italy

4272.8 kHz FUJ French Navy Noumea, New Caledonia

8626.8 kHz FUM French Navy Papeete, Tahiti, Polynesia (French)
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

6661.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft N782AM + XA-ADH + ZS-SDE + ZS-SXW
For years, we've monitored only SAA -
and no buddy else in tenthousands of messages! -
regularly transmitting AMDARs
(decoding see Radio Data Code Manual page 271)

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

5807.0 kHz ZKLF Auckland Meteo, New Zealand

10555.0 kHz VMW Wiluna Meteo WA, Australia

8927.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-2033 + B-18665 + PK-GFA + PK-GNS
Lion Air JT714 incident at WIOO ...
RTB = Return to Base

8927.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-2411 + DQ-FJV + HL7637 + PK-GFA + PK-GFN + RPC3501
The Lateral Deviation Change Event is triggered
when the aircraft’s actual position exceeds a lateral distance parameter
from the aircraft’s expected position on the active flight plan
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

8424.0 kHz SVO Olympia Radio, Athens, Greece

8424.0 kHz SVO Olympia Radio, Athens, Greece

6532.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft VP-BNL + VP-BOE

5508.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft N583NW + N606FE + N615FE + VQ-BRH

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft B-1341 + HL7208 + N419MC + ZS-SNF
KMIA runway list ...
LAHSO = Land and Hold Short Operations
For years, we've monitored only SAA -
and no buddy else in tenthousands of messages! -
regularly transmitting AMDARs
(decoding see Radio Data Code Manual page 271)
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

4660.0 kHz ACARS/HFDL H13 Santa Cruz Air, Bolivia, + aircraft TPU906
Barrigada again on 8885 10075 (both ex Muhurroq frequencies - QRT?) and 13927???
No typo, appeared in several messages monitored!

10084.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft N205HA + N213HA + N491AS + N590NW
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here
The Figure Of Merit in the Basic Report describes the navigational accuracy
in a numerical code from 0 (worst accuracy) to 7 (best)

10084.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft C-FRSE + N214HA + N491AS + N852GT
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

10084.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, and aircraft VH-EXZ + VP-BKP
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell 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

10084.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, and aircraft ABW356
Barrigada again on 8885 10075 (both ex Muhurroq frequencies - QRT?) and 13927???
No typo, appeared in several messages monitored!

6532.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft UK78702

6535.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft DP0275
Barrigada again on 8885 10075 (both ex Muhurroq frequencies - QRT?) and 13927???
No typo, appeared in several messages monitored!

8301.8 kHz 6WW French Navy Dakar, Senegal
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

5156.8 kHz TBB Turkish Navy Ankara, Turkey

11184.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft A6-EIQ + F-HPJJ + G-DHLE + G-VGEM
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

518.0 kHz VAE Canadian Coast Guard Tofino BC, Canada

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

5514.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft HL8079
EDTO = Extended Diversion Time Operations

5514.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-LGC + HL7630 + N857GT + RPC8786
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

518.0 kHz ESA Tallinn Radio, Estonia

10093.0 kHz ACARS/HFDL H09 Barrow Air, Alaska, + aircraft UAL890
Barrigada again on 8885 10075 (both ex Muhurroq frequencies - QRT?) and 13927???
No typo, appeared in several messages monitored!

10093.0 kHz ACARS/HFDL H09 Barrow Air, Alaska, + aircraft N512AS
The Figure Of Merit in the Basic Report describes the navigational accuracy
in a numerical code from 0 (worst accuracy) to 7 (best)

10081.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft 9V-SKI + 9V-SMU
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell 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

12222.0 kHz LNT United States Coast Guard Norfolk VA, United States of America

13276.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft N115FE
Funny chaps them there at KMEM ... they named a SID after Elvis Aaron Presley!

13276.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft N583NW

13276.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft F-HPJA + N588NW
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

17928.0 kHz ACARS/HFDL H17 Telde Air, Canary Islands, + aircraft OD-MRL + SU-GCN + 9V-SKQ + 9V-SMM
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

17928.0 kHz ACARS/HFDL H17 Telde Air, Canary Islands, + aircraft D2-TEJ + SU-GCN
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 Figure Of Merit in the Basic Report describes the navigational accuracy
in a numerical code from 0 (worst accuracy) to 7 (best)

22448.8 kHz FUV French Navy Jibuti, Djibouti

22448.8 kHz FUV French Navy Jibuti, Djibouti
Pretty good MUF for the current solar cycle minimum ...

21982.0 kHz ACARS/HFDL H15 Muhurroq Air, Bahrain, + aircraft ETH508
Barrigada again on 8885 10075 (both ex Muhurroq frequencies - QRT?) and 13927???
No typo, appeared in several messages monitored!

5720.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft VP-BZO + VQ-BSI + 5A-WLA
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

3622.5 kHz JMH Tokyo Meteo, Japan

3622.5 kHz JMH Tokyo Meteo, Japan

6535.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft B-1149 + OH-LWI + 9V-SML
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

518.0 kHz JGC Yokohama Radio, Japan

518.0 kHz JNR Moji Radio, Japan

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

518.0 kHz UFL Vladivostok Radio SE, Russian Federation

17928.0 kHz ACARS/HFDL H17 Telde Air, Canary Islands, + aircraft SU-GEN + 5A-ONB

518.0 kHz EAR La Coruna Radio, Spain

518.0 kHz GPK Portpatrick Radio, United Kingdom

518.0 kHz A9M Hamala Radio, Bahrain

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

11184.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft A7-ALJ
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

518.0 kHz XSI Sanya Radio, China

17919.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft IGO296
On 8885 10075 (both ex Muhurroq frequencies - QRT?) and 13927???
No typo, appeared in several messages monitored!

13270.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft B-1072 + B-1152 + B-6386

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

12695.5 kHz KFS San Francisco Air CA, United States of America

8467.5 kHz 9MG Kyodo Tsushin Georgetown, Pinang Island, Malaysia

8927.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-301D + B-8360

518.0 kHz 4XO Haifa Radio, Israel

518.0 kHz SUZ Serapeum Radio, Egypt

518.0 kHz RFA Astrakhan Radio, Russian Federation

518.0 kHz 3VL Kelibia Radio, Tunisia

518.0 kHz UGE Arkhangelsk Radio, Russian Federation

8467.5 kHz 9MG Kyodo Tsushin Georgetown, Pinang Island, Malaysia

8977.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft A6-EEV + G-NEOS + OY-KAL + VP-BGI
LIDO = Lufthansa Integrated Dispatch Operation =
FMS software used by 180+ airlines worldwide

518.0 kHz VAU Canadian Coast Guard Chebogue NS, Canada

13315.0 kHz ACARS/HFDL H13 Santa Cruz Air, Bolivia, + aircraft N438AM + N783AM

6661.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft ZS-SXM
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
The Figure Of Merit in the Basic Report describes the navigational accuracy
in a numerical code from 0 (worst accuracy) to 7 (best)

The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

13315.0 kHz ACARS/HFDL H13 Santa Cruz Air, Bolivia, + aircraft ZS-SXI
For years, we've monitored only SAA -
and no buddy else in tenthousands of messages! -
regularly transmitting AMDARs
(decoding see Radio Data Code Manual page 271)
The Figure Of Merit in the Basic Report describes the navigational accuracy
in a numerical code from 0 (worst accuracy) to 7 (best)

8977.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft AIC111
Barrigada again on 8885 10075 (both ex Muhurroq frequencies - QRT?) and 13927???
No typo, appeared in several messages monitored!

3585.0 kHz Soul Meteo, Korea (Democratic Republic of)

3585.0 kHz Soul Meteo, Korea (Democratic Republic of)

5514.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft HL7635 + HL7771 + HL8084 + N509DN + RPC8785
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell 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

8404.8 kHz Digital data station

4296.8 kHz FUE French Navy Brest, France

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

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

8570.2 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

8977.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft G-NEOS + JA807A + N889FD + SU-GCZ
What seems to be Pidgin for Motor Talk (remember wantok = one talk ...)
is in fact a company of superb aircraft tugs / positioning units ;-)
So the latest Mototok now can even move an AIRBUS A380-841??
Not bad at all!

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

4209.5 kHz XSV Tianjin Radio, China

3622.5 kHz JMH Tokyo Meteo, Japan

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,
it 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!!!

4209.5 kHz XVN Nha Thrang Radio, Viet Nam

13270.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft B-8558 + B-18663 + HL7628 + HL7643

8834.0 kHz ACARS/HFDL H08 Johannesburg Air, South Africa (Republic of), + aircraft 9M-MSD
Seems that after the MH370 disaster ...
MAS introduced a tight POSREP rule, every 3-4 minutes

518.0 kHz PBK Netherlands Coast Guard Den Helder, Netherlands

6422.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

518.0 kHz XSZ Dalian Radio, China

518.0 kHz XSG Shanghai Radio, China

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

8425.5 kHz XSG Shanghai Radio, China

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

518.0 kHz SVK Kerkyra Radio, Greece

6661.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft N961AM

8480.3 kHz FUF French Navy Fort de France, Martinique

518.0 kHz UCV Okhotsk Radio FE, Russian Federation

518.0 kHz NOJ United States Coast Guard Kodiak, Alaska

518.0 kHz UON Baku Radio, Azerbaijan

518.0 kHz 9MG Georgetown Radio, Penang Island, Malaysia

518.0 kHz JNL Otaru Radio, Japan

2610.2 kHz FUO French Navy Toulon, France

10063.0 kHz ACARS/HFDL H11 Panama City Air, Panama, + aircraft AVA036
Barrigada again on 8885 10075 (both ex Muhurroq frequencies - QRT?) and 13927???
No typo, appeared in several messages monitored!

518.0 kHz 9HD Valetta Radio, Malta

518.0 kHz HSA Bangkok Radio, Thailand

518.0 kHz PKX Jakarta Radio, Indonesia

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

518.0 kHz Muttam Point Radio, India

518.0 kHz Vengurla Point Radio, India

518.0 kHz Veraval Radio, India

518.0 kHz Balasore Radio, India
ITR = Integrated Test Range of the Indian Ballistic Missile Defense Program

518.0 kHz Vakalpudi Radio, India

6535.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft B-KQB + B-LIB + B-6532 + B-18907 + HL7741
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell 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
The Figure Of Merit in the Basic Report describes the navigational accuracy
in a numerical code from 0 (worst accuracy) to 7 (best)

10081.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft FX0400

3585.0 kHz Soul Meteo, Korea (Democratic Republic of)

3585.0 kHz Soul Meteo, Korea (Democratic Republic of)

3154.1 kHz HMA Pyongyang Meteo, Korea (Communist Undemocratic)
Drifting between 3150 and 3158 kHz
Pretty fast machine CW
Later ... TEMPs (see page 312 in the AIR AND METEO CODE MANUAL)
from Russian Federation's Far East: 31004 Aldan, 31168 Ayan, 31300 Zeja, ...
(see page 415 in the AIR AND METEO CODE MANUAL)

13321.0 kHz ACARS/HFDL H08 Johannesburg Air, South Africa (Republic of), + aircraft B-5967 + S7-SIL + ZS-SFH + ZS-SXB
For years, we've monitored only SAA -
and no buddy else in tenthousands of messages! -
regularly transmitting AMDARs
(decoding see Radio Data Code Manual page 271)
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

6532.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft C-FGEI + CN-ROC + F-HPJI + 50004B + 9V-SMO
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell 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

6532.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft EI-GGR + G-VWAG
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 Figure Of Merit in the Basic Report describes the navigational accuracy
in a numerical code from 0 (worst accuracy) to 7 (best)
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

6446.0 kHz Digital data station, Japan
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

6320.3 kHz Digital data station

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

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

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

6652.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-2035

518.0 kHz Byunsan Radio, Korea (Democratic Republic of)

8834.0 kHz ACARS/HFDL H08 Johannesburg Air, South Africa (Republic of), + aircraft ET-AVD + G-DHLE + 5Y-CYE + 9V-SMJ
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell 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

6450.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

10143.0 kHz KH6SP, Hawaii
Recreational Amateur Radio Station for Navy Sub Base Pearl Harbor
On air at the Joint Base Pearl Harbor - Wahiawa Annex

8912.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft N407KZ

16927.0 kHz UIW Kaliningrad Radio, Russian Federation

518.0 kHz Hamburg Meteo, Germany

5720.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft 9M-MSD

8416.5 kHz NMO United States Coast Guard Honolulu, Hawaii

14467.3 kHz DDH9 Hamburg Meteo, Germany

518.0 kHz Hamilton Harbour Radio, Bermuda

518.0 kHz VCO Canadian Coast Guard Port Caledonia NS, Canada

6661.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft JJ8185

6450.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

8834.0 kHz ACARS/HFDL H08 Johannesburg Air, South Africa (Republic of), + aircraft ZS-SNE + ZS-SXL
For years, we've monitored only SAA -
and no buddy else in tenthousands of messages! -
regularly transmitting AMDARs
(decoding see Radio Data Code Manual page 271)
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 Figure Of Merit in the Basic Report describes the navigational accuracy
in a numerical code from 0 (worst accuracy) to 7 (best)

518.0 kHz GCC Cullercoats Radio, United Kingdom

8416.5 kHz NMO United States Coast Guard Honolulu, Hawaii

13152.0 ANPOPS Aeronautical Radio Incorporated Urgent Link Network Annapolis MD, United States of America, + 010MDR Aeronautical Radio Incorporated Urgent Link Network Marina del Rey CA, States of America

12789.8 kHz NMG United States Coast Guard New Orleans LA, United States of America

8416.5 kHz VFF Canadian Coast Guard Iqaluit NUN, Canada

12613.0 kHz XSQ Guangzhou Radio, China

518.0 kHz 9WW21 Miri Radio, Sarawak, Malaysia

2628.0 kHz VMC Charleville Meteo QLD, Australia

518.0 kHz UFO Kholmsk Radio, FE, Russian Federation

5514.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-14282 + DQ-FJV + DQ-FJW + HL7638
The Lateral Deviation Change Event is triggered
when the aircraft’s actual position exceeds a lateral distance parameter
from the aircraft’s expected position on the active flight plan
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. by Honeywell here

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

6376.0 kHz Digital data station

7880.0 kHz DDK3 Hamburg Meteo, Germany

4215.0 kHz XSG Shanghai Radio, China
Characters in brackets denote the Latin alphabet
The four-figure groups without brackets
are Chinese ideographs - see page 48 ff. in our Radio Data Code Manual

10093.0 kHz ACARS/HFDL H09 Barrow Air, Alaska, + aircraft N215HA

10093.0 kHz ACARS/HFDL H09 Barrow Air, Alaska, + aircraft N215HA

6450.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

4209.5 kHz XVG Hai Phong Radio, Viet Nam

14776.0 kHz FC6FEM Federal Emergency Management Agency Denton TX + FC0FEM Federal Emergency Management Agency Bothell WA + FR7FEM Federal Emergency Management Agency Kansas City MO + FR9FEM Federal Emergency Management Agency Oakland CA, United States of America

12586.0 kHz UDK Murmansk Radio, Russian Federation

518.0 kHz VBA Canadian Coast Guard Pass Lake ONT, Canada

5195.0 kHz DRA5 Kiel, Germany

4244.0 kHz DAO Swisscom Maritime Communications Kiel Radio, Germany

6365.0 kHz 7CB Indonesian Navy Belawan, Indonesia

8422.0 kHz OSY Sailmail Radio, Brugge, Belgium

9216.7 kHz 99903 Ministry of Foreign Affairs Cairo, Egypt

9216.7 kHz 99903 Ministry of Foreign Affairs Cairo, Egypt

8473.0 kHz WLO Mobile Radio AL, United States of America

8473.0 kHz WLO Mobile Radio AL, United States of America

12577.0 kHz 005741040 Hai Phong Rescue Coordination Centre, Viet Nam

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

13827.5 kHz NCS504 Shared Resources High Frequency Radio Program station using the Winlink 2000 protocol RMS = Radio Mail Service

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 2019 edition of our Perseus Frequency Database
now shows utility stations' callsigns as well!

8454.8 kHz FUG French Navy Saissac, France
New 2019 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 2019 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 16,000 (sixteen thousand!) fascinating screenshots are available on our unique Digital Data Decoder Screenshots USB Stick!