Difference between revisions of "HF Modes Currently Inactive"
From The RadioReference Wiki
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− | {| border="1" | + | {| border="1" colspan="25" |
!Mode Name | !Mode Name | ||
!Synonym | !Synonym | ||
!Notes | !Notes | ||
+ | !Waterfall Page | ||
+ | |- | ||
+ | |[http://www.sigidwiki.com/wiki/ARQ-E(E3) ARQ-E] | ||
+ | |ARQ-1000D | ||
+ | || | ||
+ | || | ||
+ | |- | ||
+ | |[http://www.sigidwiki.com/wiki/ARQ-E(E3) ARQ-E3] | ||
+ | || | ||
+ | || | ||
+ | |[[ARQ E3 Waterfall]] | ||
|- | |- | ||
|[http://www.sigidwiki.com/wiki/ARQ-M2-242 ARQ-M2] | |[http://www.sigidwiki.com/wiki/ARQ-M2-242 ARQ-M2] | ||
|ARQ-28 | |ARQ-28 | ||
|Also see [http://www.sigidwiki.com/wiki/ARQ-M2-342 ARQ-M2-342] | |Also see [http://www.sigidwiki.com/wiki/ARQ-M2-342 ARQ-M2-342] | ||
+ | || | ||
|- | |- | ||
|| | || | ||
|TDM | |TDM | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|| | || | ||
|TDM-2 | |TDM-2 | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|| | || | ||
|TDM-242 | |TDM-242 | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|| | || | ||
|TDM-342 | |TDM-342 | ||
+ | || | ||
|| | || | ||
|- | |- | ||
Line 35: | Line 51: | ||
|ARQ-56 | |ARQ-56 | ||
|Also see [http://www.sigidwiki.com/wiki/ARQ-M4-342 ARQ-M4-342] | |Also see [http://www.sigidwiki.com/wiki/ARQ-M4-342 ARQ-M4-342] | ||
+ | || | ||
|- | |- | ||
|| | || | ||
|TDM-4 | |TDM-4 | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|| | || | ||
|TDM-242 | |TDM-242 | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|| | || | ||
|TDM-342 | |TDM-342 | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|[http://www.sigidwiki.com/wiki/ARQ-N ARQ-N] | |[http://www.sigidwiki.com/wiki/ARQ-N ARQ-N] | ||
+ | || | ||
|| | || | ||
|| | || | ||
|- | |- | ||
|[[ARQ6-70]] | |[[ARQ6-70]] | ||
+ | || | ||
|| | || | ||
|| | || | ||
|- | |- | ||
|[http://www.sigidwiki.com/wiki/ARQ6-90 ARQ6-90] | |[http://www.sigidwiki.com/wiki/ARQ6-90 ARQ6-90] | ||
+ | || | ||
|| | || | ||
|| | || | ||
|- | |- | ||
|[http://www.sigidwiki.com/wiki/ARQ6-98 ARQ6-98] | |[http://www.sigidwiki.com/wiki/ARQ6-98 ARQ6-98] | ||
+ | || | ||
|| | || | ||
|| | || | ||
Line 66: | Line 90: | ||
|[[ARS-GUARD]] | |[[ARS-GUARD]] | ||
|SAUD-NAT | |SAUD-NAT | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|[http://www.sigidwiki.com/wiki/AUTOSPEC AUTOSPEC] | |[http://www.sigidwiki.com/wiki/AUTOSPEC AUTOSPEC] | ||
|AUTOSPEC MK 1 | |AUTOSPEC MK 1 | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|| | || | ||
|AUTOSPECBAUER | |AUTOSPECBAUER | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|| | || | ||
|BAUER | |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]] | ||
+ | |- | ||
+ | |'''[[HF Digital Amateur Radio|CLOVER]]''' | ||
+ | |Q-CLOVER | ||
+ | || | ||
+ | || | ||
+ | |- | ||
+ | || | ||
+ | |QUAD-CLOVER | ||
+ | || | ||
+ | || | ||
+ | |- | ||
+ | |'''[[HF Digital Amateur Radio|CLOVER-2000]]''' | ||
+ | |X-CLOVER | ||
+ | || | ||
+ | || | ||
+ | |- | ||
+ | || | ||
+ | |8 TONE CLOVER | ||
+ | || | ||
+ | || | ||
+ | |- | ||
+ | |[http://www.sigidwiki.com/wiki/CLOVER_2500 CLOVER-2500] | ||
+ | || | ||
+ | || | ||
+ | |[[Clover 2500 Waterfall]] | ||
+ | |- | ||
+ | |'''[[HF Digital Amateur Radio|G-TOR]]''' | ||
+ | || | ||
+ | |Rare use by Braz Navy | ||
|| | || | ||
|- | |- | ||
|[http://www.sigidwiki.com/wiki/Coquelet COQUELET] | |[http://www.sigidwiki.com/wiki/Coquelet COQUELET] | ||
|COQ-8 | |COQ-8 | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|| | || | ||
|COQ-12 | |COQ-12 | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|| | || | ||
|COQUELET 8 V 2 | |COQUELET 8 V 2 | ||
+ | || | ||
|| | || | ||
+ | |- | ||
+ | |[http://www.sigidwiki.com/wiki/Differential_Global_Positioning_System_(DGPS) M823/SC104 DGPS] | ||
+ | |DGPS | ||
+ | |US has discontinued use | ||
+ | |[[DGPS Waterfalls]] | ||
|- | |- | ||
|[http://www.sigidwiki.com/wiki/DUP-ARQ DUP-ARQ] | |[http://www.sigidwiki.com/wiki/DUP-ARQ DUP-ARQ] | ||
|125-ARTRAC | |125-ARTRAC | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|| | || | ||
|ARTRAC | |ARTRAC | ||
+ | || | ||
|| | || | ||
|- | |- | ||
− | |[ | + | |[http://www.sigidwiki.com/wiki/DUP-ARQ-2 DUP-ARQ-2] |
|ARTRAC-II | |ARTRAC-II | ||
+ | || | ||
|| | || | ||
|- | |- | ||
− | |[ | + | |[http://www.sigidwiki.com/wiki/DUP-FEC-2 DUP-FEC-2] |
− | + | || | |
− | | | + | || |
+ | || | ||
|- | |- | ||
− | |[ | + | |[http://www.sigidwiki.com/wiki/FEC-A FEC-A] |
|FEC-100 | |FEC-100 | ||
+ | || | ||
|| | || | ||
+ | |- | ||
+ | |[http://i56578-swl.blogspot.com/search/label/French%2050%2F850 French Navy 50bd/850 Secure FSK] | ||
+ | || | ||
+ | |Moved to STANAG modes | ||
+ | |[[French Navy 50Bd Waterfall]] | ||
|- | |- | ||
|[http://www.sigidwiki.com/wiki/Globe_Wireless_HF_Network Globe Wireless HF Modes] | |[http://www.sigidwiki.com/wiki/Globe_Wireless_HF_Network Globe Wireless HF Modes] | ||
|| | || | ||
|Org used several proprietary modes | |Org used several proprietary modes | ||
+ | || | ||
|- | |- | ||
|[http://www.sigidwiki.com/wiki/HC-ARQ HC-ARQ] | |[http://www.sigidwiki.com/wiki/HC-ARQ HC-ARQ] | ||
+ | || | ||
|| | || | ||
|| | || | ||
|- | |- | ||
− | |[[HNG-FEC]] | + | |[http://www.sigidwiki.com/wiki/High_Frequency_Data_and_Voice_Link_(HFDVL) HFD+VL OFDM MODEM] |
+ | || | ||
+ | || | ||
+ | |[[HFD+VL Waterfall]] | ||
+ | |- | ||
+ | |[http://www.sigidwiki.com/wiki/HNG-FEC HNG-FEC] | ||
+ | || | ||
+ | || | ||
+ | || | ||
+ | |- | ||
+ | |[http://www.sigidwiki.com/wiki/ICAO_Selcal ICAO ANNEX 10 SELCALL] | ||
+ | |ICAO SELCALL | ||
|| | || | ||
|| | || | ||
Line 126: | Line 225: | ||
|[http://www.sigidwiki.com/wiki/IRA-ARQ IRA-ARQ] | |[http://www.sigidwiki.com/wiki/IRA-ARQ IRA-ARQ] | ||
|BULG-ASCII | |BULG-ASCII | ||
+ | || | ||
|| | || | ||
+ | |- | ||
+ | |[http://i56578-swl.blogspot.com/search/label/Iranian-QPSK Iranian Navy QPSK] | ||
+ | || | ||
+ | |via I5-56578 Digital Blog | ||
+ | |[[Iranian QPSK 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]] | ||
+ | |- | ||
+ | |[http://www.sigidwiki.com/wiki/MIL-STD-188-110_Appendix_A_16-Tone MIL-STD-188-110B Parallel 16 Tone Modem] | ||
+ | |16 TONE MODEM | ||
+ | || | ||
+ | |[[16 Tone Waterfall]] | ||
+ | |- | ||
+ | |[http://www.sigidwiki.com/wiki/MIL-STD-188-110_Appendix_B_39-Tone MIL-STD-188-110B Parallel 39 Tone Modem] | ||
+ | |39 TONE MODEM | ||
+ | || | ||
+ | |[[39 Tone Waterfall]] | ||
+ | |- | ||
+ | |[http://www.sigidwiki.com/wiki/MIL-STD-188-110_Serial MIL-STD-188-110B Serial Tone Modem] | ||
+ | |MIL-STD-188-110A | ||
+ | || | ||
+ | |[[MIL 188110B Waterfall]] | ||
+ | |- | ||
+ | || | ||
+ | |MIL-STD-188-110A/B | ||
+ | || | ||
+ | || | ||
+ | |- | ||
+ | |[http://i56578-swl.blogspot.com/search/label/PACTOR-I%20FEC PACTOR-I FEC] | ||
+ | || | ||
+ | |via I5-56578 Antonio Digital blog | ||
+ | |[[PACTOR1 FEC Waterfall]] | ||
|- | |- | ||
|[http://www.sigidwiki.com/wiki/Piccolo PICCOLO] | |[http://www.sigidwiki.com/wiki/Piccolo PICCOLO] | ||
+ | || | ||
|| | || | ||
|| | || | ||
|- | |- | ||
− | |[ | + | |[http://www.sigidwiki.com/wiki/POL-ARQ POL-ARQ] |
+ | || | ||
|| | || | ||
|| | || | ||
Line 139: | Line 286: | ||
|MEROD | |MEROD | ||
|Not really a synonym - see article | |Not really a synonym - see article | ||
+ | || | ||
|- | |- | ||
|| | || | ||
|RACAL-ARQ | |RACAL-ARQ | ||
|| | || | ||
+ | || | ||
+ | |- | ||
+ | |[http://www.sigidwiki.com/wiki/MSM-1250_Modem Racal MSM1250 SkyFax] | ||
+ | || | ||
+ | || | ||
+ | |[[MSM1250 Waterfall]] | ||
+ | |- | ||
+ | |[http://www.sigidwiki.com/wiki/Panther-H_Modem Racal PANTHER-H FHSS ALE] | ||
+ | || | ||
+ | || | ||
+ | |[[PantherH Waterfall]] | ||
|- | |- | ||
− | |[[ROU-FEC | + | |[http://www.sigidwiki.com/wiki/Redundant_Digital_File_Transfer_(RDFT) RDFT] |
+ | || | ||
+ | |Mode used by HM-01;last noted in 2022 | ||
+ | |[[HM01 RDFT Waterfall]] | ||
+ | |- | ||
+ | |[http://i56578-swl.blogspot.com/search/label/RFSM RFSM8000] | ||
+ | || | ||
+ | |via I5-56578 Antonio Digital blog | ||
+ | || | ||
+ | |- | ||
+ | |[[RS-ARQ]] | ||
+ | |ALIS | ||
+ | |last seen Mar 2018 | ||
+ | || | ||
+ | |- | ||
+ | || | ||
+ | |MERLIN | ||
+ | || | ||
+ | || | ||
+ | |- | ||
+ | |[http://www.sigidwiki.com/wiki/RUM-FEC ROU-FEC] | ||
|RUM-FEC | |RUM-FEC | ||
+ | || | ||
|| | || | ||
|- | |- | ||
− | |[[SI-ARQ | + | |[http://www.sigidwiki.com/wiki/Siemens_CHX-200_FSK_Modem Siemens CHP200] |
+ | |CHX200 | ||
+ | |I5-56578 Antonio Digital blog-last seen Oct 2018 | ||
+ | |[[CHP200 Waterfall]] | ||
+ | |- | ||
+ | |[http://www.sigidwiki.com/wiki/SI-ARQ SI-ARQ] | ||
|ARQ-S | |ARQ-S | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|| | || | ||
|ARQ-1000S | |ARQ-1000S | ||
+ | || | ||
|| | || | ||
|- | |- | ||
− | |[ | + | |[http://www.sigidwiki.com/wiki/SI-FEC SI-FEC] |
|FEC-S | |FEC-S | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|| | || | ||
|FEC 1000 SIMPLEX | |FEC 1000 SIMPLEX | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|| | || | ||
|FEC-1000S | |FEC-1000S | ||
+ | || | ||
|| | || | ||
|- | |- | ||
− | |[[SPREAD | + | |[http://i56578-swl.blogspot.com/search/label/SkyOFDM SkyOFDM] |
+ | || | ||
+ | |via I5-56578 Antonio Digital blog | ||
+ | || | ||
+ | |- | ||
+ | |[http://www.sigidwiki.com/wiki/SPREAD SPREAD] | ||
|AUTOSPEC MK II | |AUTOSPEC MK II | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|| | || | ||
|SPREAD-11 | |SPREAD-11 | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|| | || | ||
|SPREAD-21 | |SPREAD-21 | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|| | || | ||
|SPREAD-51 | |SPREAD-51 | ||
+ | || | ||
|| | || | ||
|- | |- | ||
− | |[ | + | |[http://www.sigidwiki.com/wiki/SWED-ARQ SWED-ARQ] |
|ARQ-SWE | |ARQ-SWE | ||
+ | || | ||
|| | || | ||
+ | |- | ||
+ | |[http://i56578-swl.blogspot.com/search/label/TmS-430 Swiss Forces TmS-430 VFT] | ||
+ | || | ||
+ | |via I5-56578 Antonio Digital blog-last seen Jul 2018 | ||
+ | |[[TMS430 Waterfall]] | ||
|- | |- | ||
|[[TT2300B]] | |[[TT2300B]] | ||
|TPLEX | |TPLEX | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|| | || | ||
|TRA-2300 | |TRA-2300 | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|| | || | ||
|TT2300-ARQ | |TT2300-ARQ | ||
+ | || | ||
+ | || | ||
+ | |- | ||
+ | |[http://i56578-swl.blogspot.com/2016/10/tadiran-autocall-mfsk-4.html Tadiran Autocall] | ||
+ | || | ||
+ | |via I5-56578 Antonio Digital blog-last seen Sept 2018 | ||
+ | || | ||
+ | |- | ||
+ | |Tadiran HF2000 125bd FSK Modem | ||
+ | || | ||
+ | || | ||
+ | |[[Tadiran HF2000 Data Waterfall]] | ||
+ | |- | ||
+ | |[http://i56578-swl.blogspot.com/2015/04/thales-trc-1752.html Thales TRC1752] | ||
+ | || | ||
+ | |via I5-56578 Antonio Digital blog | ||
|| | || | ||
|- | |- | ||
|[[TWINPLEX]] | |[[TWINPLEX]] | ||
|TWINPLEX-SITOR | |TWINPLEX-SITOR | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|| | || | ||
|F7B4 | |F7B4 | ||
+ | || | ||
|| | || | ||
|- | |- | ||
|| | || | ||
|F7BNN | |F7BNN | ||
+ | || | ||
|| | || | ||
|} | |} | ||
+ | |||
+ | |||
+ | ==Bit and ACF Analysis== | ||
+ | * [[Decoders#Autocorrelation_Bit_and_ACF_Analysis|What is an ACF?]] | ||
+ | |||
+ | |||
+ | <gallery> | ||
+ | Image:French Navy 50baud ACF.JPG|French Navy 50 Baud | ||
+ | Image:PACTOR 1 FEC 100Baud ACF.JPG|Pactor 1 FEC | ||
+ | Image:CHX200 ALE ACF.JPG|CHX200 | ||
+ | Image:CHX200 ALE ACF.JPG|Siemens CHP200 | ||
+ | </gallery> | ||
+ | |||
+ | ==Notes== | ||
+ | * ACFs, Audio used for plotting and some waterfalls courtesy of Mike Chace-Ortiz, used with permission. | ||
+ | |||
+ | |||
---- | ---- | ||
* Return to [[DXing Digital Utilities]] | * Return to [[DXing Digital Utilities]] | ||
− | |||
− | |||
− | |||
* Return to [[HF Modes List]] | * Return to [[HF Modes List]] | ||
* Go to [[HF Modes Currently Active]] | * Go to [[HF Modes Currently Active]] | ||
− | * Go to [[ | + | * Go to [[CIS Modes]] |
− | * Go to | + | * Go to [[Voice Scrambling Systems]] |
+ | |||
− | [[Category:HF | + | [[Category:HF Modes]] |
+ | [[Category:HF Signal Analysis and Decoding]] |
Latest revision as of 23:42, 3 February 2024
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 | Waterfall Page |
---|---|---|---|
ARQ-E | ARQ-1000D | ||
ARQ-E3 | ARQ E3 Waterfall | ||
ARQ-M2 | ARQ-28 | Also see ARQ-M2-342 | |
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 | ||
COQUELET | COQ-8 | ||
COQ-12 | |||
COQUELET 8 V 2 | |||
M823/SC104 DGPS | DGPS | US has discontinued use | DGPS Waterfalls |
DUP-ARQ | 125-ARTRAC | ||
ARTRAC | |||
DUP-ARQ-2 | ARTRAC-II | ||
DUP-FEC-2 | |||
FEC-A | FEC-100 | ||
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 | |
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 | |||
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 | ||
RDFT | Mode used by HM-01;last noted in 2022 | HM01 RDFT Waterfall | |
RFSM8000 | via I5-56578 Antonio Digital blog | ||
RS-ARQ | ALIS | last seen Mar 2018 | |
MERLIN | |||
ROU-FEC | RUM-FEC | ||
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 | ||
TRA-2300 | |||
TT2300-ARQ | |||
Tadiran Autocall | via I5-56578 Antonio Digital blog-last seen Sept 2018 | ||
Tadiran HF2000 125bd FSK Modem | Tadiran HF2000 Data Waterfall | ||
Thales TRC1752 | via I5-56578 Antonio Digital blog | ||
TWINPLEX | TWINPLEX-SITOR | ||
F7B4 | |||
F7BNN |
Bit and ACF Analysis
Notes
- ACFs, Audio used for plotting and some waterfalls courtesy of Mike Chace-Ortiz, used with permission.
- Return to DXing Digital Utilities
- Return to HF Modes List
- Go to HF Modes Currently Active
- Go to CIS Modes
- Go to Voice Scrambling Systems