HF Modes Currently Inactive
From The RadioReference Wiki
Many of these modes haven't been used in years. Unfortunately when you buy a decoder like Hoka or Wavecom, you are paying not only for the modes that are active, but for the mostly out-of-date mode decoding as well. Rarely, some of these modes will come to life from time to time, probably to test a circuit, or to supplant a faulty satellite link.
Some of the waterfalls come from the DX Asia site (see the HF Appendix) and are used here for research and historical purposes.
This list can be used to eliminate possible modes used by a mystery signal, enabling one to move onto more productive possibilities.
Mode Name | Synonym | Notes | Waterfall Page |
---|---|---|---|
ARQ-E | ARQ-1000D | ||
ARQ-E3 | ARQ E3 Waterfall | ||
ARQ-M2 | ARQ-28 | Also see ARQ-M2-342 | HF Asia Waterfall |
TDM | |||
TDM-2 | |||
TDM-242 | |||
TDM-342 | |||
ARQ-M4 | ARQ-56 | Also see ARQ-M4-342 | |
TDM-4 | |||
TDM-242 | |||
TDM-342 | |||
ARQ-N | |||
ARQ6-70 | |||
ARQ6-90 | |||
ARQ6-98 | |||
ARS-GUARD | SAUD-NAT | ||
AUTOSPEC | AUTOSPEC MK 1 | ||
AUTOSPECBAUER | |||
BAUER | |||
Australian Forces Continuous MIL-STD-188-110A Serial Tone | Aus MILSTD188110A Serial Waterfall | ||
Chinese Forces MIL-STD-188-110B 39 Tone Modem Variant | Chinese 39 Tone Waterfall | ||
CLOVER | Q-CLOVER | ||
QUAD-CLOVER | |||
CLOVER-2000 | X-CLOVER | ||
8 TONE CLOVER | |||
CLOVER-2500 | Clover 2500 Waterfall | ||
G-TOR | Rare use by Braz Navy | ||
Codan 9001/3021 16 Tone Modems | CODAN 16 TONE MODEM | CODAN 16 Tone Waterfall | |
Australian Selcall | |||
COQUELET | COQ-8 | HF Asia Waterfall | |
COQ-12 | |||
COQUELET 8 V 2 | |||
DUP-ARQ | 125-ARTRAC | HF Asia Waterfall | |
ARTRAC | |||
DUP-ARQ-2 | ARTRAC-II | ||
DUP-FEC-2 | |||
FEC-A | FEC-100 | HF Asia Waterfall | |
French Navy 50bd/850 Secure FSK | Moved to STANAG modes | French Navy 50Bd Waterfall | |
Globe Wireless HF Modes | Org used several proprietary modes | ||
HC-ARQ | |||
HFD+VL OFDM MODEM | HFD+VL Waterfall | ||
HNG-FEC | |||
ICAO ANNEX 10 SELCALL | ICAO SELCALL | ||
IRA-ARQ | BULG-ASCII | ||
Iranian Navy QPSK | via I5-56578 Digital Blog | Iranian QPSK Waterfall | |
Israeli Navy Hybrid FSK & 2400bd PSK Modem | Israeli Navy Waterfall | ||
Italian Coast Guard 100bd FSK Selcall | Italian CG Waterfall | ||
Japanese Navy 18 Tone Modem | Jap Navy 18Tone Waterfall | ||
Japanese Navy PSK Modem | Jap Navy PSK Waterfall | ||
MIL-STD-188-110B Parallel 16 Tone Modem | 16 TONE MODEM | 16 Tone Waterfall | |
MIL-STD-188-110B Parallel 39 Tone Modem | 39 TONE MODEM | 39 Tone Waterfall | |
MIL-STD-188-110B Serial Tone Modem | MIL-STD-188-110A | MIL 188110B Waterfall | |
MIL-STD-188-110A/B | |||
PACTOR-I FEC | via I5-56578 Antonio Digital blog | PACTOR1 FEC Waterfall | |
PICCOLO | HF Asia Waterfall | ||
POL-ARQ | |||
RAC-ARQ | MEROD | Not really a synonym - see article | |
RACAL-ARQ | |||
Racal MSM1250 SkyFax | MSM1250 Waterfall | ||
Racal PANTHER-H FHSS ALE | PantherH Waterfall | ||
RFSM8000 | via I5-56578 Antonio Digital blog | ||
RS-ARQ | ALIS | last seen Mar 2018 | |
MERLIN | |||
ROU-FEC | RUM-FEC | HF Asia Waterfall | |
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 |
SI-ARQ | ARQ-S | ||
ARQ-1000S | |||
SI-FEC | FEC-S | ||
FEC 1000 SIMPLEX | |||
FEC-1000S | |||
SkyOFDM | via I5-56578 Antonio Digital blog | ||
SPREAD | AUTOSPEC MK II | ||
SPREAD-11 | |||
SPREAD-21 | |||
SPREAD-51 | |||
SWED-ARQ | ARQ-SWE | ||
Swiss Forces TmS-430 VFT | via I5-56578 Antonio Digital blog-last seen Jul 2018 | TMS430 Waterfall | |
TT2300B | TPLEX | HF Asia Waterfall | |
TRA-2300 | |||
TT2300-ARQ | |||
Tadiran Autocall | via I5-56578 Antonio Digital blog-last seen Sept 2018 | Waterfall de DX Asia | |
Tadiran HF2000 125bd FSK Modem | Tadiran HF2000 Data Waterfall | ||
Thales Systeme 3000 Skymaster | last seen Feb 2018 | Systeme 3000 Waterfall | |
Thales TRC1752 | via I5-56578 Antonio Digital blog | ||
TWINPLEX | TWINPLEX-SITOR | HF Asia Waterfall | |
F7B4 | |||
F7BNN |
Bit and ACF Analysis
Notes
- ACFs, Audio used for plotting and some waterfalls courtesy of Mike Chace-Ortiz, used with permission.
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