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when you buy a decoder like Hoka or Wavecom, you are paying not only for the modes that are active, but for the mostly out-of-date mode decoding as well.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.
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 |
|---|---|---|
| ARQ-M2 | ARQ-28 | |
| TDM | ||
| TDM-2 | ||
| TDM-242 | ||
| TDM-342 | ||
| ARQ-M4 | ARQ-56 | |
| TDM-4 | ||
| TDM-242 | ||
| TDM-342 | ||
| ARQ-N | ||
| ARQ6-70 | ||
| ARQ6-90 | ||
| ARQ6-98 | ||
| ARS-GUARD | SAUD-NAT | |
| AUTOSPEC | AUTOSPEC MK 1 | |
| AUTOSPECBAUER | ||
| BAUER | ||
| CHINESE 4 PLUS 4 | ||
| COQUELET | COQ-8 | |
| COQ-12 | ||
| COQUELET 8 V 2 | ||
| DUP-ARQ | 128-ARTRAC | |
| ARTRAC | ||
| DUP-ARQ-2 | ARTRAC-II | |
| DUP-FEC | DUP-FEC-2 | Name used in Wavecom doc |
| FEC-A | FEC-100 | |
| Globe Wireless Modes | Org used several proprietary modes | |
| G-TOR | ||
| HARCO-39 | HARRIS 39 TONE | |
| HC-ARQ | ||
| HNG-FEC | ||
| IRA-ARQ | BULG-ASCII | |
| NATO 75/100 | BEAVER? | |
| LINK4? | ||
| CRATT | ||
| RATT | ||
| PICCOLO | ||
| POL-ARQ | ||
| RAC-ARQ | MEROD | Not really a synonym - see article |
| RACAL-ARQ | ||
| ROU-FEC | RUM-FEC | |
| RS-ARQ | ALIS | Not really a synonym - see article |
| MERLIN | ||
| SI-ARQ | ARQ-S | |
| ARQ-1000S | ||
| SI-FEC | FEC-S | |
| FEC 1000 SIMPLEX | ||
| FEC-1000S | ||
| SPREAD | AUTOSPEC MK II | |
| SPREAD-11 | ||
| SPREAD-21 | ||
| SPREAD-51 | ||
| SWED-ARQ | ARQ-SWE | |
| TT2300B | TPLEX | |
| TRA-2300 | ||
| TT2300-ARQ | ||
| TWINPLEX | TWINPLEX-SITOR | |
| F7B4 | ||
| F7BNN |