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Difference between revisions of "HF Modes Currently Active"

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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.
 
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;
 +
* [[HF Active Mode Waterfalls Page 1]]
 +
* [[HF Active Mode Waterfalls Page 2]]
  
−
It should be noted that MARS, SHARES and numbers stations have sometimes used digital modes used in the Amateur Radio Service such as Olivia, MFSK16 or MT63. These modes are shown in '''bold''', and will redirect to the [[Digital Amateur Radio]] article on this wiki to link to articles that describe the protocols in more detail.
+
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.
  
−
{| border="1"
+
==Active Modes==
 +
{| border="1" width="750" colspan="25"
 
!Mode or Description
 
!Mode or Description
 
!Synonym
 
!Synonym
 
!Notes
 
!Notes
 +
!Waterfall Page
 
|-
 
|-
 
|[[HFDL|ARINC 635]]
 
|[[HFDL|ARINC 635]]
 
|[[HFDL]]
 
|[[HFDL]]
 
||
 
||
 +
|[[HFDL Waterfall]]
 
|-
 
|-
 
||
 
||
 
|HF ACARS
 
|HF ACARS
 +
||
 
||
 
||
 
|-
 
|-
 
||
 
||
 
|HF DATALINK
 
|HF DATALINK
−
||
 
−
|-
 
−
|[http://www.sigidwiki.com/wiki/ARQ-E(E3) ARQ-E]
 
−
|ARQ-1000D
 
−
|occasional use
 
−
|-
 
−
|[http://www.sigidwiki.com/wiki/ARQ-E(E3) ARQ-E3]
 
−
||
 
−
|occasional use
 
−
|-
 
−
|[http://www.sigidwiki.com/wiki/Modernised_High_Frequency_Communications_System_(MHFCS) Australian Forces 50bd & 600bd FSK ISB System]
 
−
||
 
−
||
 
−
|-
 
−
|[[Australian Forces Continuous MIL-STD-188-110B ISB System]]
 
 
||
 
||
 
||
 
||
−
|-
 
−
|'''[[Digital Amateur Radio|AX.25 300bd FSK Packet Radio]]'''
 
−
|AX.25
 
−
|Protocol Name based off X.25 Standards
 
−
|-
 
−
||
 
−
|PACKET
 
−
||
 
 
|-
 
|-
 
|[http://www.sigidwiki.com/wiki/Radio_Teletype_(RTTY) BAUDOT]
 
|[http://www.sigidwiki.com/wiki/Radio_Teletype_(RTTY) BAUDOT]
 
|ITA-2
 
|ITA-2
−
|misnomer; ITA2 is coding scheme. Rarely used
+
|misnomer; ITA2 is coding scheme.  
 +
|[[Baudot Waterfalls]]
 
|-
 
|-
 
||  
 
||  
 
|RTTY
 
|RTTY
 
||
 
||
−
|-
 
−
|[[Chinese Navy MIL-STD-188-110B Serial Tone Modem Variant]]
 
−
||
 
−
||
 
−
|-
 
−
|[[Chinese Forces MIL-STD-188-110B 39 Tone Modem Variant]]
 
−
||
 
−
||
 
−
|-
 
−
|[[Chinese Forces MIL-STD-188-141B 2G ALE Variant]]
 
−
||
 
−
||
 
−
|-
 
−
|[[Chinese Forces Hybrid MIL-STD-188-141B 8FSK Variant & Serial Tone PSK Modem]]
 
−
||
 
−
||
 
−
|-
 
−
|[http://www.sigidwiki.com/wiki/Chinese_4%2B4 Chinese 4 plus 4 Modem]
 
 
||
 
||
−
|Rare
 
 
|-
 
|-
 
|[http://www.sigidwiki.com/wiki/CCIR_493-4_Selcall CCIR493-4 Selcall]
 
|[http://www.sigidwiki.com/wiki/CCIR_493-4_Selcall CCIR493-4 Selcall]
 
|CODAN 8580
 
|CODAN 8580
−
|Misnomer; Radio Modem Name
+
|Chinese usage?
−
|-
+
|[[CCIR493 Waterfall]]
−
||
 
−
|Australian Selcall
 
−
||
 
−
|-
 
−
|[[CIS Modes]]
 
−
||
 
−
||
 
−
|-
 
−
|'''[[Digital Amateur Radio|CLOVER]]'''
 
−
|Q-CLOVER
 
−
|Rare
 
−
|-
 
−
||
 
−
|QUAD-CLOVER
 
−
||
 
−
|-
 
−
||
 
−
|8 TONE CLOVER
 
−
||
 
−
|-
 
−
|'''[[Digital Amateur Radio|CLOVER-2000]]'''
 
−
|X-CLOVER
 
−
||
 
−
|-
 
−
|[http://www.sigidwiki.com/wiki/CLOVER_2500 CLOVER-2500]
 
−
||
 
−
|Rare
 
−
|-
 
−
|[http://www.sigidwiki.com/wiki/Codan_Data_Modem CODAN CHIRP]
 
−
||
 
−
||
 
 
|-
 
|-
 
|[http://www.sigidwiki.com/wiki/Codan_Data_Modem Codan 9001/3021 16 Tone Modems]
 
|[http://www.sigidwiki.com/wiki/Codan_Data_Modem Codan 9001/3021 16 Tone Modems]
−
|CODAN 16 TONE MODEM
 
 
||
 
||
 +
|Used by Bangla Navy and Egypt diplo
 +
|[[CODAN 16 Tone Waterfall]]
 
|-
 
|-
 
|[http://www.sigidwiki.com/wiki/Morse_Code_(CW) CW]
 
|[http://www.sigidwiki.com/wiki/Morse_Code_(CW) CW]
 
|Morse
 
|Morse
−
||
+
|heavily used by Russ Mil (AF, etc.)
−
|-
+
|[[CW Waterfall]]
−
|[[EADS Echotel FARCOS Modem]]
 
−
||
 
−
|Rare
 
−
|-
 
−
|[[EADS MAHRS Modem]]
 
−
||
 
−
|Rare
 
−
|-
 
−
|[[Egyptian Navy MIL-STD-188-110B Variant Modem]]
 
−
||
 
−
||
 
 
|-
 
|-
 
|[http://www.sigidwiki.com/wiki/Radiofax FAX]
 
|[http://www.sigidwiki.com/wiki/Radiofax FAX]
 
||
 
||
 
||
 
||
−
|-
+
|[[FAX Waterfall]]
−
|[[French Navy 50bd/850 Secure FSK]]
 
−
||
 
−
||
 
 
|-
 
|-
 
|[[FSK100]]
 
|[[FSK100]]
 
|POL-FSK
 
|POL-FSK
 +
|Uses 63bd/125bd; BPSK/QPSK too; Enigma P03
 +
|[[FSK100 Waterfalls]]
 +
|-
 +
||
 +
|AK10
 +
|per Hoka
 
||
 
||
 
|-
 
|-
 
|[http://www.sigidwiki.com/wiki/GMDSS_Digital_Selective_Calling GMDSS/DSC]
 
|[http://www.sigidwiki.com/wiki/GMDSS_Digital_Selective_Calling GMDSS/DSC]
 
|Maritime Selcall
 
|Maritime Selcall
−
|[[GMDSS DSC Waterfall|Waterfall]]
+
||
 +
|[[GMDSS DSC Waterfall]]
 
|-
 
|-
−
|'''[[Digital Amateur Radio|G-TOR]]'''
+
|[http://www.sigidwiki.com/wiki/Japanese_Slot_Machine_(XSL) Japanese Slot Machine]
 
||
 
||
−
|Rare-MARS /SHARES use
+
|Mode is QPSK1500
 +
|[[QPSK1500 Waterfall]]
 
|-
 
|-
−
|[http://www.sigidwiki.com/wiki/HC-265_Voice_Scrambler Hagelin HC256 Voice Scrambler]
+
|[http://www.sigidwiki.com/wiki/North_Korean_Diplo_FSK KEGURI]
−
||
+
|DPRK 600 ARQ
 
||
 
||
 +
||[[DPRK 600 Waterfall]]
 
|-
 
|-
−
|[[Harris Advanced Voice Security (AVS) Scrambler]]
+
|[https://www.sigidwiki.com/wiki/MIL-STD-188-110_Serial MIL-STD-188-110A]  
 
||
 
||
 +
|encrypted
 
||
 
||
 
|-
 
|-
−
|[http://www.sigidwiki.com/wiki/High_Frequency_Data_and_Voice_Link_(HFDVL) HFD+VL OFDM MODEM]
+
|[http://www.sigidwiki.com/wiki/Automatic_Link_Establishment_(2G_ALE) MIL-STD-188-141A ([[ALE]])]
 +
|2G ALE
 +
|wide use by NGO,Military some ham
 +
|[[ALE 2G Waterfall]]
 +
|-
 +
|[http://www.sigidwiki.com/wiki/Link-11 MIL-STD-188-203-1A]
 +
|ALLIGATOR
 +
|encrypted
 +
|[[Link11 Waterfalls]]
 +
|-
 
||
 
||
 +
|Link-11
 
||
 
||
 
|-
 
|-
−
|[http://www.sigidwiki.com/wiki/ICAO_Selcal ICAO ANNEX 10 SELCALL]
 
−
|ICAO SELCALL
 
 
||
 
||
−
|-
+
|TADIL-A
−
|[[Iranian Navy PSK Selcall]]
 
 
||
 
||
 
||
 
||
 
|-
 
|-
−
|[[Israeli Navy Hybrid FSK & 2400bd PSK Modem]]
+
|NAVTEX
−
||
 
 
||
 
||
 +
|A broadcast mode built on [http://www.sigidwiki.com/wiki/SITOR-B SITOR-B]
 +
|[[NAVTEX Waterfall]]
 
|-
 
|-
−
|[[Italian Coast Guard 100bd FSK Selcall]]
+
|[http://www.sigidwiki.com/wiki/SITOR-A SITOR-A]
−
||
+
|AMTOR MODE A
−
|Rare
+
|some maritime, Egyptian use
 +
|[[SITOR-A Waterfalls]]
 
|-
 
|-
−
|[http://www.sigidwiki.com/wiki/Japan_Military_8-Channel_FSK Japanese Navy 100bd 8FSK Modem]
 
 
||
 
||
−
|Rare
+
|ARQ
−
|-
 
−
|[[Japanese Navy 18 Tone Modem]]
 
 
||
 
||
−
|Rare
 
−
|-
 
−
|[http://www.sigidwiki.com/wiki/North_Korean_Diplo_FSK KEGURI]
 
−
|DPRK 600
 
−
|Rare
 
−
|-
 
 
||
 
||
−
|DPRK 120
 
−
|Rare
 
 
|-
 
|-
−
|'''[[Digital Amateur Radio|MFSK16]]'''
 
 
||
 
||
−
|Rare-MARS /SHARES use
+
|SITOR-ARQ
−
|-
 
−
|[http://www.sigidwiki.com/wiki/MIL-STD-188-110_Appendix_A_16-Tone MIL-STD-188-110B Parallel 16 Tone Modem]
 
−
|16 TONE MODEM
 
 
||
 
||
−
|-
 
−
|[http://www.sigidwiki.com/wiki/MIL-STD-188-110_Appendix_B_39-Tone MIL-STD-188-110B Parallel 39 Tone Modem]
 
−
|39 TONE MODEM
 
 
||
 
||
 
|-
 
|-
−
|[http://www.sigidwiki.com/wiki/MIL-STD-188-110_Serial MIL-STD-188-110B Serial Tone Modem]
 
−
|MIL-SD-188-110A
 
 
||
 
||
−
|-
+
|TOR
 
||
 
||
−
|MIL-SD-188-110A/B
 
 
||
 
||
 
|-
 
|-
−
|[http://www.sigidwiki.com/wiki/STANAG_4539 MIL-STD-188-110C WideBand Modem]
+
|[http://www.sigidwiki.com/wiki/SITOR-B SITOR-B]
−
|110C WB
+
|AMTOR MODE B
 
||
 
||
 +
|[[SITOR-B Waterfall]]
 
|-
 
|-
 
||
 
||
−
|STANAG 4539
+
|FEC
 
||
 
||
−
|-
 
−
|[http://www.sigidwiki.com/wiki/Automatic_Link_Establishment_(2G_ALE) MIL-STD-188-141A]
 
−
|2G ALE
 
−
|[[ALE]]
 
−
|-
 
−
|[http://www.sigidwiki.com/wiki/Automatic_Link_Establishment_(3G_ALE) MIL-STD-188-141B App. C ALE]
 
−
|3G ALE
 
−
|[[ALE]]
 
−
|-
 
−
|[[Link-11|MIL-STD-188-203A Parallel Tone Modem]]
 
−
|[[Link-11]] CLEW
 
 
||
 
||
 
|-
 
|-
 
||
 
||
−
|ALLIGATOR
+
|SITOR-FEC
−
||
 
−
|-
 
 
||
 
||
−
|TADIL-A
 
 
||
 
||
 
|-
 
|-
−
|[[Link-11|MIL-STD-188-203A Serial Tone Modem]]
+
|[http://www.sigidwiki.com/wiki/STANAG_4285 STANAG 4285]
−
|[[Link-11]] SLEW
+
||
−
||
+
|encrypted. See the [https://groups.io/g/UDXF UDXF] files area for freqs
 +
|[[STANAG 4285 Waterfall]]
 
|-
 
|-
−
|'''[[Digital Amateur Radio|MT-63]]'''
+
|[http://www.sigidwiki.com/wiki/STANAG_4481 STANAG 4481]
−
||
+
|CRATT
−
|Rare-MARS /SHARES use
+
|encrypted. See [[Undecodeable NATO Digital Signals|here]] for frequencies
 +
|[[STANAG 4481 Waterfalls]]
 
|-
 
|-
−
|[http://www.sigidwiki.com/wiki/Differential_Global_Positioning_System_(DGPS) M823/SC104 DGPS]
 
−
|[DGPS]
 
 
||
 
||
−
|-
+
|LINK-4
−
|[[NAVTEX]]
 
 
||
 
||
−
|A broadcast mode built on [http://www.sigidwiki.com/wiki/SITOR-B SITOR-B]
 
−
|-
 
−
|[[Necode ARX300]]
 
 
||
 
||
−
|Rare
 
 
|-
 
|-
−
|'''[[Digital Amateur Radio|OLIVIA]]'''
 
 
||
 
||
−
|Rare-MARS /SHARES use
+
|NATO-75
−
|-
 
−
|'''[[Digital Amateur Radio|PACTOR-I]]'''
 
 
||
 
||
 
||
 
||
 
|-
 
|-
−
|[http://www.sigidwiki.com/wiki/PACTOR_I PACTOR-I FEC]
 
 
||
 
||
−
||
+
|RATT
−
|-
 
−
|'''[[Digital Amateur Radio|PACTOR-II]]'''
 
 
||
 
||
 
||
 
||
 
|-
 
|-
−
|[http://www.sigidwiki.com/wiki/PACTOR_II PACTOR-II FEC]
+
|[http://i56578-swl.blogspot.com/2017/06/thales-hfxl-modem-salamandre-tests-go-on.html Thalex HFXM modem]
−
||
+
|Salamandre
−
||
+
|mentioned on list 2/2023
 +
||  
 
|-
 
|-
−
|'''[[Digital Amateur Radio|PACTOR-III]]'''
+
|[https://www.sigidwiki.com/wiki/Thales_Syst%C3%A8me_3000_HF_Modem Thales Systeme 3000 Skymaster]
 
||
 
||
 
||
 
||
 +
|[[Systeme 3000 Waterfall]]
 
|-
 
|-
−
|'''[[Digital Amateur Radio|PACTOR-IV]]'''
+
|[https://www.sigidwiki.com/wiki/WinDRM WinDRM]
 
||
 
||
 +
|Mode used by HM-01; First noted Jan 2024
 
||
 
||
 +
|}
 +
 +
==HF Trading==
 +
* [http://www.udxf.nl/HF-Trading-Stations_03AUGL2023.pdf Greater Chicago HF Trading Stations (PDF)]
 +
* [http://www.udxf.nl/HF-Trading(recordings).zip Recordings for the above (Zipped)]
 +
** See the '''More HF Trading''' thread on the [https://groups.io/g/UDXF UDXF] reflector on groups.io for more information. You must be a member to view this thread.
 +
 +
==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. Text is always encrypted and can't be read, though it can be decoded in many cases.
 +
 +
 +
{| border="1" width="750" colspan="25"
 +
!Mode or Description
 +
!Synonym
 +
!Notes
 +
!Waterfall Page
 
|-
 
|-
−
|[[PACTOR GlobalLink Variants]]
+
|[http://www.sigidwiki.com/wiki/Modernised_High_Frequency_Communications_System_(MHFCS) Australian Forces 50bd/600bd]
−
||
 
−
|Used by stations like HEB Berne
 
−
|-
 
−
|[http://www.sigidwiki.com/wiki/Japanese_Slot_Machine_(XSL) QPSK1500]
 
 
||
 
||
−
|Mode used by Japanese Slot Machine
 
−
|-
 
−
|[http://www.sigidwiki.com/wiki/Panther-H_Modem Racal PANTHER-H FHSS ALE]
 
 
||
 
||
 
||
 
||
 
|-
 
|-
−
|[http://www.sigidwiki.com/wiki/MSM-1250_Modem Racal MSM1250 SkyFax]
+
|[http://www.sigidwiki.com/wiki/Chinese_4%2B4 Chinese 4 plus 4 Modem]
 
||
 
||
 +
|last seen Feb 2021
 
||
 
||
 
|-
 
|-
−
|[http://www.sigidwiki.com/wiki/Redundant_Digital_File_Transfer_(RDFT) RDFT]
+
|[http://www.sigidwiki.com/wiki/Codan_Data_Modem CODAN]
 
||
 
||
−
|Mode used by HM-01
+
|last seen Oct 2020
 +
|[[CODAN Chirp Waterfall]]
 
|-
 
|-
−
|[[RFSM8000]]
+
|[http://www.sigidwiki.com/wiki/Israeli_Navy_Hybrid_Modem_(188-110_MOD) Israeli Navy Hybrid 188-110 MOD]
 
||
 
||
−
|Mode used by Bulgarian Diplo
+
|HF Underground Mar 2020
 +
|[[Israeli Navy Waterfall]]
 
|-
 
|-
−
|[[Rockwell DVP200 Digital Voice Protection]]
+
|[https://www.sigidwiki.com/wiki/Japan_Military_8-Channel_FSK Japanese Mil 8-FSK]
−
||
 
 
||
 
||
 +
|encrypted- last seen Nov 2020
 +
|[[Jap 8Tone Waterfall]]
 
|-
 
|-
−
|[[RS-ARQ]]
+
|[http://www.sigidwiki.com/wiki/North_Korean_Diplo_FSK KEGURI]
−
|ALIS
+
|DPRK 1200
−
|Not really a synonym - see article. Very Rare
+
|last seen Jan 2019
 +
|[[DPRK 1200 Waterfall]]
 
|-
 
|-
 +
|MIL-STD-188-110 hybrid
 
||
 
||
−
|MERLIN
+
|last seen July 2019
 
||
 
||
 
|-
 
|-
−
|[http://www.sigidwiki.com/wiki/Saab_Grintek_MHF-50_MFSK_Modem Saab Grintek MHF50 MFSK Modem]
+
|[https://www.sigidwiki.com/wiki/MIL-STD-188-110_Appendix_B_39-Tone MIL-STD-188-110B]
 
||
 
||
 +
|last seen June 2021
 
||
 
||
 
|-
 
|-
−
|[http://www.sigidwiki.com/wiki/CRY2001_Voice_Scrambler Sailor CRY2001 Voice Scrambler]
+
|MIL-STD-188-110C
 
||
 
||
 +
|last seen Feb 2019
 
||
 
||
 
|-
 
|-
−
|[http://www.sigidwiki.com/wiki/Siemens_CHX-200_FSK_Modem Siemens CHP200]
+
|[http://i56578-swl.blogspot.com/search/label/PACTOR-II%20FEC PACTOR-II FEC]
−
|CHX200
+
||
−
|Rare
+
|via I5-56578 Antonio Digital blog
−
|-
 
−
|[http://www.sigidwiki.com/wiki/SITOR-A SITOR-A]
 
−
|AMTOR MODE A
 
 
||
 
||
 
|-
 
|-
 +
|[https://www.sigidwiki.com/wiki/PACTOR_IV PACTOR IV]
 
||
 
||
−
|ARQ
+
|used in the maritime svc - last seen June 2020
 
||
 
||
 
|-
 
|-
 +
|[http://www.sigidwiki.com/wiki/Saab_Grintek_MHF-50_MFSK_Modem Saab Grintek MHF50 MFSK Modem]
 
||
 
||
−
|SITOR-ARQ
+
|logs Nov 2020
−
||
+
|[[MHF50 Waterfall]]
 +
|-
 +
|[http://www.sigidwiki.com/wiki/STANAG_4197 STANAG 4197]
 +
|ANDVT
 +
|Last reported Oct 2021
 +
|[[ANDVT Waterfall]]
 
|-
 
|-
−
||
+
|[http://www.sigidwiki.com/wiki/Automatic_Link_Establishment_(3G_ALE) STANAG 4538]
−
|TOR
+
|3G ALE
 +
|last seen Dec 2019
 
||
 
||
 
|-
 
|-
−
|[http://www.sigidwiki.com/wiki/SITOR-B SITOR-B]
+
|[https://www.sigidwiki.com/wiki/STANAG_4539 STANAG 4539]
−
|AMTOR MODE B
+
|MIL-STD-188-110B/C App C
−
||
+
|last Seen Oct 2019 
 +
|[[MIL 188110C Waterfall]]
 
|-
 
|-
 
||
 
||
−
|FEC
+
|110C WB
 
||
 
||
−
|-
 
−
||
 
−
|SITOR-FEC
 
 
||
 
||
 +
|}
 +
 +
==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.
 +
 +
MFSK32 and 64 is currently being used by the Shortwave Radiogram program. Olivia and MT63 has been used in the past. See the [[Shortwave Radiogram Gateway]] for more information on this subject.
 +
 +
 +
{| border="1" width="750" colspan="25"
 +
!Mode or Description
 +
!Synonym
 +
!Notes
 +
!Waterfall Page
 
|-
 
|-
−
|[[SKYOFDM]]
+
|'''[[HF Digital Amateur Radio|AX.25 300bd FSK Packet Radio]]'''
 +
|AX.25
 +
|Protocol Name based off X.25 Standards
 
||
 
||
−
|Extremely Rare
 
 
|-
 
|-
−
|[http://www.sigidwiki.com/wiki/STANAG_4197 STANAG4197]
 
−
|ANDVT
 
 
||
 
||
−
|-
+
|PACKET
−
|[http://www.sigidwiki.com/wiki/STANAG_4285 STANAG4285 2400bd Modem]
 
 
||  
 
||  
 
||
 
||
 
|-
 
|-
−
|[http://www.sigidwiki.com/wiki/STANAG_4481 STANAG4481 FSK]
+
|'''[[HF Digital Amateur Radio|MFSK16]]'''
−
|CRATT
 
 
||
 
||
−
|-
 
 
||
 
||
−
|LINK-4
 
 
||
 
||
 
|-
 
|-
 +
|'''[[HF Digital Amateur Radio|MT-63]]'''
 
||
 
||
−
|NATO-75
 
−
||
 
−
|-
 
 
||
 
||
−
|RATT
 
 
||
 
||
 
|-
 
|-
−
|[[Swiss Forces TMS430 VFT]]
+
|'''[[HF Digital Amateur Radio|OLIVIA]]'''
 
||
 
||
 
||
 
||
−
|-
 
−
|[[Tadiran Autocall]]
 
 
||
 
||
−
|Rare
 
 
|-
 
|-
−
|[[Tadiran HF2000 125bd FSK Modem]]
+
|'''[[HF Digital Amateur Radio|PACTOR-I]]'''
 
||
 
||
 +
|used in the maritime svc
 
||
 
||
 
|-
 
|-
−
|[[Tadiran HF2000 Voice Scrambler]]
+
|'''[[HF Digital Amateur Radio|PACTOR-II]]'''
 
||
 
||
 +
|used in the maritime svc
 
||
 
||
 
|-
 
|-
−
|[http://www.sigidwiki.com/wiki/Thales_Syst%C3%A8me_3000_Skyhopper Thales Systeme 3000 Skymaster]
+
|'''[[HF Digital Amateur Radio|PACTOR-III]]'''
 
||
 
||
 +
|used in the maritime svc - often encrypted
 
||
 
||
 
|-
 
|-
−
|[http://www.sigidwiki.com/wiki/Thales_Syst%C3%A8me_3000_HF_Modem Thales TRC1752]
+
|'''[[HF Digital Amateur Radio|PSK31]]'''
 
||
 
||
−
|Rare
 
−
|-
 
−
|[[UK Forces WinDRM51 Variant]]
 
−
||
 
−
|Rare
 
−
|-
 
−
|[[US Navy 50bd/850 Secure FSK]]
 
 
||
 
||
 
||
 
||
 
|-
 
|-
−
|[[VOICE FREQUENCY TELEGRAPHY (VFT)]]
+
|'''[[HF Digital Amateur Radio|WinMOR]]'''
 
||
 
||
 
||
 
||
−
|-
 
−
|'''[[Digital Amateur Radio|WinMOR]]'''
 
−
||
 
−
|Rare-MARS /SHARES use
 
 
|}
 
|}
  
  
−
----
+
 
 
* Return to [[DXing Digital Utilities]]
 
* Return to [[DXing Digital Utilities]]
−
* Return to [[A Few Words on Receivers]]
 
−
* Return to [[Making the Connection to the PC]]
 
−
* Return to [[Decoders]]
 
 
* Return to [[HF Modes List]]
 
* Return to [[HF Modes List]]
 
* Return to [[HF Modes Currently Inactive]]
 
* Return to [[HF Modes Currently Inactive]]
−
* Go to [[Testing Your New Setup]]
+
* Go to [[CIS Modes]]
−
* Go to the [[HF Appendix]]
+
* Go to [[Voice Scrambling Systems]]
−
 
 
  
  
−
[[Category:HF Topics]]
+
[[Category:HF Modes]]
 +
[[Category:HF Signal Analysis and Decoding]]

Latest revision as of 18:40, 3 February 2024

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

Mode or Description Synonym Notes Waterfall Page
ARINC 635 HFDL HFDL Waterfall
HF ACARS
HF DATALINK
BAUDOT ITA-2 misnomer; ITA2 is coding scheme. Baudot Waterfalls
RTTY
CCIR493-4 Selcall CODAN 8580 Chinese usage? CCIR493 Waterfall
Codan 9001/3021 16 Tone Modems Used by Bangla Navy and Egypt diplo CODAN 16 Tone Waterfall
CW Morse heavily used by Russ Mil (AF, etc.) CW Waterfall
FAX FAX Waterfall
FSK100 POL-FSK Uses 63bd/125bd; BPSK/QPSK too; Enigma P03 FSK100 Waterfalls
AK10 per Hoka
GMDSS/DSC Maritime Selcall GMDSS DSC Waterfall
Japanese Slot Machine Mode is QPSK1500 QPSK1500 Waterfall
KEGURI DPRK 600 ARQ DPRK 600 Waterfall
MIL-STD-188-110A encrypted
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
NAVTEX A broadcast mode built on SITOR-B NAVTEX Waterfall
SITOR-A AMTOR MODE A some maritime, Egyptian use SITOR-A Waterfalls
ARQ
SITOR-ARQ
TOR
SITOR-B AMTOR MODE B SITOR-B Waterfall
FEC
SITOR-FEC
STANAG 4285 encrypted. See the UDXF files area for freqs STANAG 4285 Waterfall
STANAG 4481 CRATT encrypted. See here for frequencies STANAG 4481 Waterfalls
LINK-4
NATO-75
RATT
Thalex HFXM modem Salamandre mentioned on list 2/2023
Thales Systeme 3000 Skymaster Systeme 3000 Waterfall
WinDRM Mode used by HM-01; First noted Jan 2024

HF Trading

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. Text is always encrypted and can't be read, though it can be decoded in many cases.


Mode or Description Synonym Notes Waterfall Page
Australian Forces 50bd/600bd
Chinese 4 plus 4 Modem last seen Feb 2021
CODAN last seen Oct 2020 CODAN Chirp Waterfall
Israeli Navy Hybrid 188-110 MOD HF Underground Mar 2020 Israeli Navy Waterfall
Japanese Mil 8-FSK encrypted- last seen Nov 2020 Jap 8Tone Waterfall
KEGURI DPRK 1200 last seen Jan 2019 DPRK 1200 Waterfall
MIL-STD-188-110 hybrid last seen July 2019
MIL-STD-188-110B last seen June 2021
MIL-STD-188-110C last seen Feb 2019
PACTOR-II FEC via I5-56578 Antonio Digital blog
PACTOR IV used in the maritime svc - last seen June 2020
Saab Grintek MHF50 MFSK Modem logs Nov 2020 MHF50 Waterfall
STANAG 4197 ANDVT Last reported Oct 2021 ANDVT Waterfall
STANAG 4538 3G ALE last seen Dec 2019
STANAG 4539 MIL-STD-188-110B/C App C last Seen Oct 2019 MIL 188110C Waterfall
110C WB

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.

MFSK32 and 64 is currently being used by the Shortwave Radiogram program. Olivia and MT63 has been used in the past. See the Shortwave Radiogram Gateway for more information on this subject.


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
PACTOR-I used in the maritime svc
PACTOR-II used in the maritime svc
PACTOR-III used in the maritime svc - often encrypted
PSK31
WinMOR


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