HF Modes Currently Active
From The RadioReference Wiki
These modes have been reported in various places over the couple of years. Keep in mind that although a particular mode can be decoded, there are several that are encrypted, and therefore unreadable. One can use analysis tools such as ACF analysis to determine this, but we may never know what such signals are actually saying.
We have pages set up with just waterfalls (useful for quick searches) here;
The PACTOR references are shown in bold will redirect to the HF Digital Amateur Radio article on this wiki to link to articles that describe the protocols in more detail. PACTOR1 through 3 have been known to be used in the amateur radio service, as well as in the maritime service, as noted. ALE has also been known to be used in the amateur service.
'Last Seen' references are the last time this mode was seen in the UDXF logs.
Active Modes
- As of Jan 2018, using the logs from the UDXF and others.
Mode or Description | Synonym | Notes | Waterfall Page |
---|---|---|---|
ARINC 635 | HFDL | HFDL Waterfall | |
HF ACARS | |||
HF DATALINK | |||
Australian Forces 50bd/600bd | encrypted | ||
BAUDOT | ITA-2 | misnomer; ITA2 is coding scheme. | Baudot Waterfalls |
RTTY | |||
Chinese 4 plus 4 Modem | encrypted | ||
CODAN CHIRP | occasional use | CODAN Chirp Waterfall | |
CW | Morse | heavily used by Russ Mil (AF, etc.) | CW Waterfall |
FAX | FAX Waterfall | ||
FSK100 | POL-FSK | Uses 63bd/125bd BPSK too; encrypted | FSK100 Waterfalls |
AK10 | per Hoka | ||
GMDSS/DSC | Maritime Selcall | GMDSS DSC Waterfall | |
Japanese Mil 8-FSK | encrypted | Jap 8Tone Waterfall | |
Japanese Slot Machine | Mode is QPSK1500; encrypted | QPSK1500 Waterfall | |
MIL-STD-188-110A | encrypted | Waterfall de DX Asia | |
MIL-STD-188-141A (ALE) | 2G ALE | wide use by NGO,Military some ham | ALE 2G Waterfall |
MIL-STD-188-203-1A | ALLIGATOR | encrypted | Link11 Waterfalls |
Link-11 | |||
TADIL-A | |||
M823/SC104 DGPS | DGPS | DGPS Waterfalls | |
NAVTEX | A broadcast mode built on SITOR-B | NAVTEX Waterfall | |
PACTOR-I | used in the maritime svc | ||
PACTOR-II | used in the maritime svc | ||
PACTOR-III | used in the maritime svc - often encrypted | ||
PACTOR-IV | used in the maritime svc - often encrypted | ||
RDFT | Mode used by HM-01;encrypted | HM01 RDFT Waterfall | |
SITOR-A | AMTOR MODE A | SITOR-A Waterfalls | |
ARQ | |||
SITOR-ARQ | |||
TOR | |||
SITOR-B | AMTOR MODE B | SITOR-B Waterfall | |
FEC | |||
SITOR-FEC | |||
STANAG4197 | ANDVT | encrypted | ANDVT Waterfall |
STANAG4285 2400bd Modem | encrypted | STANAG 4285 Waterfall | |
STANAG4481 FSK | CRATT | encrypted | STANAG 4481 Waterfalls |
LINK-4 | |||
NATO-75 | |||
RATT | |||
STANAG 5066 | encrypted;use for file xfers/emails |
Sporadically Active Modes
These modes have been reported occasionally over several months. Some may have been just tests; whether they'll show up in the future is anyone's guess.
Mode or Description | Synonym | Notes | Waterfall Page |
---|---|---|---|
CCIR493-4 Selcall | CODAN 8580 | Misnomer; Radio Modem Name | CCIR493 Waterfall |
Chinese MFSK PSK-8 | last seen Apr 2018 | ||
Chinese MFSK | last seen May 2018 | ||
Chinese 39 tone OFDM | last seen Feb 2018 | ||
Chinese Selcall | last seen Aug 2018 | ||
KEGURI | DPRK 600 | DPRK 600 Waterfall | |
DPRK 1200 | DPRK 1200 Waterfall | ||
MIL-STD-188-110 App B | last seen July 2018 | ||
MIL-STD-188-110 Hybrid | last seen Feb 2018 | ||
MIL-STD-188-110A Hybrid | last seen Mar 2018 | ||
MIL-STD-188-110 Serial Hybrid | last seen Jan 2018 | ||
MIL-STD 188-110D App.D | last seen Apr 2018 | ||
MIL-STD-188-141B App. C ALE | 3G ALE | last seen Apr 2018 | |
Polish FSK 400/800 | Polish Intel via I5-56578 Antonio Digital blog-last seen Aug 2018 | ||
RS-ARQ | ALIS | last seen Mar 2018 | |
MERLIN | |||
Saab Grintek MHF50 MFSK Modem | last seen Mar 2018 | MHF50 Waterfall | |
Siemens CHP200 | CHX200 | I5-56578 Antonio Digital blog-last seen Oct 2018 | CHP200 Waterfall |
STANAG 4539 | MIL-STD-188-110B/C App C | Seen in Oct 2018 UDXF logs | MIL 188110C Waterfall |
110C WB | |||
Swiss Forces TmS-430 VFT | via I5-56578 Antonio Digital blog-last seen Jul 2018 | TMS430 Waterfall | |
Tadiran Autocall | via I5-56578 Antonio Digital blog-last seen Sept 2018 | Waterfall de DX Asia | |
Thales Systeme 3000 Skymaster | last seen Feb 2018 | Systeme 3000 Waterfall | |
Voice Frequency Telegraphy (VFT) | last seen June 2018 |
Amateur Related Modes Used by Other Entities
These modes have been reported once in a while by SHARES, MARS or the ICRC. Their use is sporadic at best.
Mode or Description | Synonym | Notes | Waterfall Page |
---|---|---|---|
AX.25 300bd FSK Packet Radio | AX.25 | Protocol Name based off X.25 Standards | |
PACKET | |||
MFSK16 | |||
MT-63 | |||
OLIVIA | |||
PSK31 | |||
WinMOR |
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