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 17,000 (seventeen 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 his pooling webpage by our worldwide net of cooperators, using advanced equipment such as the superb PROCITEC and WAVECOM Digital Data Decoders.


11312.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft N588NW + N8314L + 9V-SHE
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here

11312.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-2006 + C-FNNW + C-FRSR + N863FD + N877FD + N8314L
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here

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

10093.0 kHz ACARS/HFDL H09 Barrow Air, Alaska, + aircraft N433AS
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
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

6565.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft N965AM + XA-AMR
WELS = Wireless Emergency Lighting System

6565.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-KQB + JA16KZ + N587FE + N862FD + N897FD
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here

6565.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft B-KQB
The Basic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

8416.5 kHz VFF Canadian Coast Guard Iqaluit NUN, Canada

12579.0 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina

11086.5 kHz GYA Royal Navy London, United Kingdom

2610.2 kHz FUO French Navy Toulon, France

4538.8 kHz Digital data station

7898.8 kHz Digital data station

10081.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft F-WWCF + VQ-BST + VQ-BWG
AIRBUS A350-941 test

5583.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft B-6526 + PK-GFW + 9V-SCH
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual 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 Basic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

518.0 kHz XSZ Dalian Radio, China

518.0 kHz XSG Shanghai Radio, China

4209.5 kHz XSQ Guangzhou Radio, China

8446.5 kHz BBSR BLS KDA Digital data stations, India

8446.5 kHz BBSR BLS PLB Digital data stations, India

21982.0 kHz ACARS/HFDL H15 Muhurroq Air, Bahrain, + flight ACA81
Barrigada again on 8885 10075 (both ex Muhurroq frequencies - QRT?) and 13927???
No typo, appeared in several messages monitored!

10081.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft HP1857
The Basic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft N595NW
RMWT = Ramp Weight = Planned aircraft weight at the gate

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft B-KQJ + HL7771 + N255UP + N850FD
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here

518.0 kHz Veraval Radio, India

518.0 kHz Veraval Radio, India

518.0 kHz EQI Abbas Radio, Iran

518.0 kHz A9M Hamala Radio, Bahrain
MEGULITE = Middle East Gulf Lighting Service

518.0 kHz A9M Hamala Radio, Bahrain
MEGULITE = Middle East Gulf Lighting Service

4209.5 kHz TAH Istanbul Radio, Turkey

6220.0 kHz IDN Italian Navy Napoli, Italy

17928.0 kHz ACARS/HFDL H17 Telde Air, Canary Islands, + aircraft CN-RAM + SU-GCN + SU-GDD

8977.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft A7-BGA + CN-RGI + VP-BER + VP-BRR
GC = Ground Connections
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here

8977.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft A6-EOL + A7-BGA + CN-RGJ + EC-MOM + UK32022 + VQ-BIU + 9V-SMD
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here

9950.3 kHz BJCA Digital data station

5195.0 kHz DRA5 Kiel, Germany
Sunspot minimum ...
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

10081.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft CN-NMJ + CN-RGE + SU-GCS

6652.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-LRV + HL7630 + 9V-SKF
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual 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

16017.7 kHz Ministry of Foreign Affairs Cairo, Egypt, to Egyptian Embassy Delhi, India
ATU-80 Arabic teleprinter alphabet - see page 44 ff. in our Radio Data Code Manual
22641 = QSX 14623.7 kHz

16017.7 kHz 99901 Ministry of Foreign Affairs Cairo, Egypt, to 44406 Egyptian Embassy Delhi, India

16023.7 kHz Ministry of Foreign Affairs Cairo, Egypt, to Egyptian Embassy Delhi, India
ATU-80 Arabic teleprinter alphabet - see page 44 ff. in our Radio Data Code Manual05081 = QSX 18051.7 kHz

12579.0 kHz UAT Moscow Radio, Russian Federation

5720.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft F-HPJC + F-HPJE + TC-LLC
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here

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

518.0 kHz VAJ Canadian Coast Guard Prince Rupert BC, Canada

3622.5 kHz JMH Tokyo Meteo, Japan

3622.5 kHz JMH Tokyo Meteo, Japan

8942.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft EI-EJM + P4-KBH + VP-BWO

6661.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft HP1857 + N581NW

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

5529.0 kHz ACARS/HFDL H09 Barrow Air, Alaska, + flight CPA209
Barrigada again on 8885 10075 (both ex Muhurroq frequencies - QRT?) and 13927???
No typo, appeared in several messages monitored!

8431.0 kHz TAH Istanbul Radio, Turkey

8416.5 kHz NMO United States Coast Guard Honolulu, Hawaii

8977.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft B-2036 + ET-ARF + N123FE
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here

8977.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + aircraft C-FVLU + JY-AYW + N26906 + SU-GDZ + SU-GED

6330.5 kHz OSY Sailmail Radio, Brugge, Belgium

12858.8 kHz 6WW French Navy Dakar, Senegal

6565.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft N967AM
Detailed L/R engine parameters ...

6565.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + aircraft HL7629
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
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 NMC United States Coast Guard San Francisco CA, United States of America

10100.8 kHz DDK9 Hamburg Meteo, Germany

10081.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft N850GT
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual 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

10081.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft N850GT + VP-BTI + VQ-BBG
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here

11321.0 kHz ACARS/HFDL H08 Johannesburg Air, South Africa (Republic of), + aircraft CN-RGI

6559.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft N592FE + 9V-SGC
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here

518.0 kHz PKX Jakarta Radio, Indonesia

4209.5 kHz XVN Nha Thrang Radio, Viet Nam

11090.0 kHz KVM70 Honolulu Meteo, Hawaii

11090.0 kHz KVM70 Honolulu Meteo, Hawaii

10060.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft B-6321 + HL8099
This is exactly the new station -
within the largest worldwide radio network on HF! -
that we've already predicted on page 20 of our
2019/2020 GUIDE TO UTILITY RADIO STATIONS!

8416.5 kHz NMO United States Coast Guard Honolulu, Hawaii

8416.5 kHz NMO United States Coast Guard Honolulu, Hawaii

4209.5 kHz XVG Hai Phong Radio, Viet Nam

518.0 kHz DZX Manila Radio, Philippines

518.0 kHz JNB Naha Radio, Okinawa Island, Japan

5508.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft N597FE

5508.0 kHz ACARS/HFDL H01 San Francisco Air CA, United States of America, + aircraft JA12KZ + N205UW + N628FE

490.0 kHz GNI Niton Radio, United Kingdom

4296.8 kHz FUE French Navy Brest, France

13882.5 kHz DDK6 Hamburg Meteo, Germany

13882.5 kHz DDK6 Hamburg Meteo, Germany

13882.5 kHz DDK6 Hamburg Meteo, Germany

14585.3 kHz Digital data station

20536.0 kHz RDL Commonwealth of Independent States Navy Vilyeyka, Belarus
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

8416.5 kHz UAT Moscow Radio, Russian Federation

4209.5 kHz XSG Shanghai Radio, China

5655.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + flight QTR898
Barrigada again on 8885 10075 (both ex Muhurroq frequencies - QRT?) and 13927???
No typo, appeared in several messages monitored!

10081.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, + aircraft C-FIYE + F-HPJD + OY-KAM + VP-BLP
DOI = Dry Operating Index
DLI = Dead Load Index
MAC... = Mean Aerodynamic Chord ...
LITOW = Loaded Index at TOW
LIZFW = Loaded Index at ZFW
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here

6661.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft A6-EDA + N203UW + N280AY

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

11387.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft B-1543 + JA13KZ + JA813A

6483.0 kHz 9MR Malaysian Navy Johor Baharu, Malaysia
Shift is indeed 898 and not standard 850 Hz

7795.0 kHz JMH2 Tokyo Meteo, Japan

21928.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + flight CES239
On 8885 10075 (both ex Muhurroq frequencies - QRT?) and 13927???
No typo, appeared in several messages monitored!

8834.0 kHz ACARS/HFDL H08 Johannesburg Air, South Africa (Republic of), + aircraft VQ-BAX + ZS-SZD
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)

13988.5 kHz JMH4 Tokyo Meteo, Japan

8435.0 kHz XSQ Guangzhou Radio, China
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

8462.0 kHz 9MR Malaysian Navy Johor Baharu, Malaysia
Shift is indeed 898 and not standard 850 Hz

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

8180.0 kHz Digital data station

10542.0 kHz RCV Commonwealth of Independent States Navy Sevastopol', Ukraine
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

13324.0 kHz ACARS/HFDL H02 Hoolehua Air, Molokai, Hawaii, + flight NW1149
Barrigada again on 8885 10075 (both ex Muhurroq frequencies - QRT?) and 13927???
No typo, appeared in several messages monitored!

5100.0 kHz VMC Charleville Meteo QLD, Australia
The continuous phase jumps are caused by the station itself,
confirmed by many radio monitoring sites around the world!

8834.0 kHz ACARS/HFDL H08 Johannesburg Air, South Africa (Republic of), + aircraft JY-AYR + S7-AMI + VP-BTK + VQ-BCP

3585.0 kHz HLL8 Soul Meteo, South Korea

3585.0 kHz HLL8 Soul Meteo, South Korea

518.0 kHz JGC Yokohama Radio, Japan

10060.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft B-6471
This is exactly the new station -
within the largest worldwide radio network on HF! -
that we've already predicted on page 20 of our
2019/2020 GUIDE TO UTILITY RADIO STATIONS!
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

7433.5 kHz HLL8 Soul Meteo, South Korea

8894.0 kHz ACARS/HFDL H11 Panama City Air, Panama, + flight TAI440
Barrigada again on 8885 10075 (both ex Muhurroq frequencies - QRT?) and 13927???
No typo, appeared in several messages monitored!

16854.0 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

17958.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + flight DP0105
This is exactly the new station -
within the largest worldwide radio network on HF! -
that we've already predicted on page 20 of our
2019/2020 GUIDE TO UTILITY RADIO STATIONS!

13321.0 kHz ACARS/HFDL H08 Johannesburg Air, South Africa (Republic of), + flight ABW718

8459.0 kHz NOJ United States Coast Guard Kodiak, Alaska

10084.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, and aircraft B-LID + B-6111 + HL7736 + N853FD + PK-GMO + VP-BWK + 9V-SHI
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here

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

5195.0 kHz DRA5 Kiel, Germany

4298.0 kHz NOJ United States Coast Guard Kodiak, Alaska

4298.0 kHz NOJ United States Coast Guard Kodiak, Alaska

4298.0 kHz NOJ United States Coast Guard Kodiak, Alaska

10060.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft B-6335 + B-8397 + N856FD + VP-BUK
This is exactly the new station -
within the largest worldwide radio network on HF! -
that we've already predicted on page 20 of our
2019/2020 GUIDE TO UTILITY RADIO STATIONS!

4298.0 kHz NOJ United States Coast Guard Kodiak, Alaska

5583.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, + aircraft B-6112

13044.3 kHz FUV French Navy Jibuti, Djibouti

12603.5 kHz SVO Olympia Radio, Athens, Greece

518.0 kHz NOJ United States Coast Guard Kodiak, Alaska

518.0 kHz VAE Canadian Coast Guard Tofino BC, Canada

6652.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-5941 + HL7623
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 Basic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

3585.0 kHz HLL8 Soul Meteo, South Korea

8480.3 kHz FUF French Navy Fort de France, Martinique

6535.0 kHz ACARS/HFDL H05 Auckland Air, New Zealand, and flight JJ8231
Barrigada again on 8885 10075 (both ex Muhurroq frequencies - QRT?) and 13927???
No typo, appeared in several messages monitored!

12412.5 kHz NOJ United States Coast Guard Kodiak, Alaska

5100.0 kHz VMC Charleville Meteo QLD, Australia
The continuous phase jumps are caused by the station itself,
confirmed by many radio monitoring sites around the world!

5807.0 kHz ZKLF Auckland Meteo, New Zealand

13303.0 kHz ACARS/HFDL H17 Telde Air, Canary Islands, + aircraft CN-MNJ + CS-TSF + JY-AYN + JY-AYP
The Basic Report gives position - trajectory intent - speed vector data
plus the Figure of Merit code or data for navigational accuracy

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

4209.5 kHz XSV Tianjin Radio, China

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

6661.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + aircraft N964AM + RPC3508
L/R engine data ...
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here

518.0 kHz PBK Netherlands Coast Guard Ijmuiden, Netherlands

13270.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft B-307Z + B-2019 + VT-IFY

8425.5 kHz XSG Shanghai Radio, China

12382.0 kHz XSG Shanghai Radio, China

12382.0 kHz XSG Shanghai Radio, China

4210.0 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina

4210.0 kHz L2C Argentinian Coast Guard Buenos Aires, Argentina
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

4235.0 kHz NMF United States Coast Guard Boston MA, United States of America

8416.5 kHz VFF Canadian Coast Guard Iqaluit NUN, Canada

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

8416.5 kHz NMF United States Coast Guard Boston MA, United States of America
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

12668.3 kHz FUG French Navy Saissac, France
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

17958.0 kHz ACARS/HFDL H10 Muan Air, South Korea, + aircraft B-5928 + B-6595 + B-8680
This is exactly the new station -
within the largest worldwide radio network on HF! -
that we've already predicted on page 20 of our
2019/2020 GUIDE TO UTILITY RADIO STATIONS!

518.0 kHz L2G Argentinian Coast Guard Buenos Aires, Argentina

518.0 kHz L2T Argentinian Coast Guard Mar del Plata, Argentina

21982.0 kHz ACARS/HFDL H15 Muhurroq Air, Bahrain, + aircraft SU-GDB

518.0 kHz UFL Vladivostok Radio SE, Russian Federation

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

518.0 kHz 9MG Georgetown Radio, Penang Island, Malaysia

7880.0 kHz DDK3 Hamburg Meteo, Germany

518.0 kHz 9VG Singapore Radio
SPOCC = Singapore Port Operations Control Centre
TSS = Traffic Separation Scheme

518.0 kHz 9VG Singapore Radio

518.0 kHz JNR Moji Radio, Japan

5655.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + flight B-18918 + OH-LWE + OH-LWK
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual 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

12745.5 kHz JJC Kyodo Tsushin Tokyo, Japan

10093.0 kHz ACARS/HFDL H09 Barrow Air, Alaska, + aircraft VP-BDN

518.0 kHz XVT Da Nang Radio, Viet Nam

518.0 kHz XVS Ho Chi Minh City Radio, Viet Nam

518.0 kHz 9WW21 Miri Radio, Sarawak, Malaysia

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

518.0 kHz SVH Iraklion Radio, Greece

518.0 kHz Gislovshammar Radio, Sweden

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

518.0 kHz Hamburg Meteo, Germany

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

8912.0 kHz ACARS/HFDL H04 Riverhead Air NY, United States of America, + flight FX0869

8454.0 kHz UIW Kaliningrad Radio, Russian Federation

4272.8 kHz FUJ French Navy Noumea, New Caledonia

11184.0 kHz ACARS/HFDL H03 Reykjavik Air, Iceland, + flight UAE9WL
Barrigada again on 8885 10075 (both ex Muhurroq frequencies - QRT?) and 13927???
No typo, appeared in several messages monitored!

518.0 kHz HSA Bangkok Radio, Thailand

518.0 kHz HSA Bangkok Radio, Thailand

6422.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

6422.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

13270.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft B-6361 + HL8099 + VQ-BWA

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

4255.0 kHz UFH Petropavlovsk-Kamchatskiy Radio, Russian Federation

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

7795.0 kHz JMH2 Tokyo Meteo, Japan

8416.5 kHz UFZ Vladivostok Radio SE, Russian Federation

12711.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

6376.0 kHz Digital data station
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

518.0 kHz XSI Sanya Radio, China

14621.7 kHz Egyptian Embassy Islamabad, Pakistan, to Ministry of Foreign Affairs Cairo, Egypt

8655.0 kHz UAI Nakhodka Radio SE, Russian Federation

518.0 kHz Byunsan Radio, South Korea

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

13270.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft B-6718 + JA805A + N857GT + VT-IET

13270.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft B-18652 + N405KZ + N857GT + VT-IET + XU-919

13270.0 kHz ACARS/HFDL H06 Hat Yai Air, Thailand, + aircraft A6-EEL + B-6476 + OH-LWD + PK-GFC + PK-GFS + PK-GNJ
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here

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

518.0 kHz VBA Canadian Coast Guard Pass Lake ONT, Canada

13315.0 kHz ACARS/HFDL H13 Santa Cruz Air, Bolivia, + flight LAN750
Barrigada again on 8885 10075 (both ex Muhurroq frequencies - QRT?) and 13927???
No typo, appeared in several messages monitored!

4252.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

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

16243.8 kHz Digital data station

8302.0 kHz XSG Shanghai Radio, China

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

3622.5 kHz JMH Tokyo Meteo, Japan

518.0 kHz RFA Astrakhan Radio, Russian Federation

518.0 kHz LGT Tjoeme Radio, Norway

16335.8 kHz Digital data station

518.0 kHz SVK Kerkyra Radio, Greece

518.0 kHz Sellia Marina Radio, Italy

518.0 kHz 4XO Haifa Radio, Israel

7535.0 kHz VMW Wiluna Meteo WA, Australia
The continuous phase jumps are caused by the station itself,
confirmed by many radio monitoring sites around the world!

7535.0 kHz VMW Wiluna Meteo WA, Australia
The continuous phase jumps are caused by the station itself,
confirmed by many radio monitoring sites around the world!

8416.5 kHz LGS Svalbard Radio, Spitsbergen, Norway

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

8927.0 kHz ACARS/HFDL H16 Barrigada Air, Guam, + aircraft B-8362 + HL7211 + RPC8618 + RPC8783
DOI = Dry Operating Index
LI... = Loaded Index at ...
MAC... = Mean Aerodynamic Chord ...
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here

8582.0 kHz PWN Brazilian Navy Natal, Brazil

8582.0 kHz PWN Brazilian Navy Natal, Brazil

518.0 kHz 9HD Valetta Radio, Malta

490.0 kHz YQI Constanta Radio, Romania

490.0 kHz Poti Radio, Georgia

518.0 kHz 5BA Nicosia Radio, Cyprus

518.0 kHz Vakalpudi Radio, India

518.0 kHz Muttam Point Radio, India

518.0 kHz EAV Valencia Radio, Spain

518.0 kHz EJK Irish Coast Guard Valentia, Ireland

11348.0 kHz ACARS/HFDL H17 Telde Air, Canary Islands, + aircraft CN-ROY + G-GATU + HL7616
What seems to be Pidgin for Motor Talk (remember wantok = one talk ...)
is in fact a manufacturer of superb aircraft tugs / positioning units ;-)
So the latest Mototok now can even move an AIRBUS A380-841??
Not bad at all!

11348.0 kHz ACARS/HFDL H17 Telde Air, Canary Islands, + aircraft CN-ROP + EI-GFX + G-TTNI
CTOT = Calculated Take-Off Time (used for slot allocation)
The MA-AFAS CPDLC ADS-C message headers
- such as "UM130" - are defined e.g. in
ICAO's Global Operational Data Link Manual here

8414.5 kHz 004122100 Shanghai Maritime Rescue Coordination Centre, China
Ship station 0533791000 is Malaysian General Cargo Ship THAILINE 9

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

4232.5 kHz Digital data station, Japan
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

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

518.0 kHz Hua-Lien Radio, Taiwan (Democratic Republic of China)

10081.0 kHz ACARS/HFDL H07 Shannon Air, Ireland, and flight UAL82
Barrigada again on 8885 10075 (both ex Muhurroq frequencies - QRT?) and 13927???
No typo, appeared in several messages monitored!

486.0 kHz XSV Tianjin Radio, China
Chinese teleprinter code after Latin alphabet header

518.0 kHz JNX Kushiro Radio, Japan

518.0 kHz PBB Dutch Navy Den Helder, Netherlands
A specially formatted sample Klingenfuss frequency database
is perfectly integrated in the go2MONITOR GUI

518.0 kHz LGQ Rogaland Radio, Norway

518.0 kHz El Djaza'ir Radio, Algeria

518.0 kHz UDN Novorossiysk Radio, Russian Federation

518.0 kHz IQM Mondolfo Radio, Italy

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

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

490.0 kHz OST Oostende Radio, Belgium

518.0 kHz VBC Canadian Coast Guard Wiarton ONT, Canada

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

5156.8 kHz TBB Turkish Navy Ankara, Turkey

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

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

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

518.0 kHz SUZ Serapeum Radio, Egypt

518.0 kHz VAU Canadian Coast Guard Chebogue NS, Canada

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

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

518.0 kHz UCV Okhotsk Radio FE, Russian Federation

518.0 kHz Vengurla Point Radio, India

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

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

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)

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

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

6450.0 kHz PWZ Brazilian Navy Rio de Janeiro, Brazil

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

4244.0 kHz DAO Swisscom Maritime Communications Kiel Radio, Germany

6365.0 kHz 7CB Indonesian Navy Belawan, Indonesia

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 17,000 (seventeen thousand!) fascinating screenshots are available on our unique Digital Data Decoder Screenshots USB Stick!