# ARC6.6 BandMode definitions - revision 2026-09-14 # Requires ARC6.6 fractional-kHz boundary support. Do not use in legacy ARC6. # Fields: band identifier, inferred mode, inclusive lower kHz, inclusive upper kHz. # FT dial frequencies: https://github.com/WSJTX/wsjtx/blob/master/models/FrequencyList.cpp # FT activity windows use dial through dial+3 kHz as a classification convention. # These are not exclusive mode allocations or transmit permissions. # Explicit decoded mode must take precedence over frequency inference. # First matching row wins: ambiguous FT windows precede FT rows, then legacy rows. # DIGI denotes shared FT4/FT8 or other narrow digital activity. # Existing 1 and .07 band identifiers are retained for legacy filter compatibility. # This file does not enable the FT feed or opt users into skimmer delivery. # # Shared windows (inclusive boundaries remain conservatively ambiguous). 80 DIGI 3575 3576 60 DIGI 5357 5360 # Conventional FT4/FT8 windows; includes Region 3 3568 and 6 m intercontinental 50323. 160 FT8 1840 1843 80 FT4 3568 3571 80 FT8 3573 3576 80 FT4 3575 3578 40 FT4 7047.5 7050.5 40 FT8 7074 7077 30 FT8 10136 10139 30 FT4 10140 10143 20 FT8 14074 14077 20 FT4 14080 14083 17 FT8 18100 18103 17 FT4 18104 18107 15 FT8 21074 21077 15 FT4 21140 21143 12 FT8 24915 24918 12 FT4 24919 24922 10 FT8 28074 28077 10 FT4 28180 28183 6 FT8 50313 50316 6 FT4 50318 50321 6 FT8 50323 50326 4 FT8 70154 70157 2 FT4 144170 144173 2 FT8 144174 144177 1 FT8 222174 222177 .07 FT8 432174 432177 .23 FT8 1296174 1296177 # IARU 60 m preferred usage; these are inference defaults, not exclusive modes. # https://www.iaru-r1.org/wp-content/uploads/2021/06/hf_r1_bandplan.pdf # Lower section supports CW AND narrow digital; CW is the fallback inference. # Middle section permits all modes; SSB is the fallback (USB for voice). # Upper section is very narrow weak-signal activity, not an FT4/FT8 window. # Higher sections precede lower sections to resolve inclusive shared endpoints. 60 DIGI 5366 5366.5 60 SSB 5354 5366 60 CW 5351.5 5354 # Broad defaults and LF/MF recognition follow. Custom sysop files are separate. #------------------------------------------------------------------------------------------------------------------------ #Band Mode Definitions - Mode is used for the user needs filter #------------------------------------------------------------------------------------------------------------------------ #Band Mode Lower Upper 2200 CW 135.7 137.8 630 CW 472 479 160 CW 1800 1850 160 SSB 1850 2000 80 CW 3500 3580 80 CW 3580 3700 80 SSB 3700 4000 60 SSB 5200 5500 40 CW 7000 7040 40 RTTY 7040 7100 40 SSB 7100 7300 30 CW 10100 10130 30 RTTY 10130 10150 20 CW 14000 14070 20 RTTY 14070 14150 20 SSB 14150 14350 17 CW 18068 18100 17 RTTY 18100 18110 17 SSB 18110 18168 15 CW 21000 21070 15 RTTY 21070 21200 15 SSB 21200 21450 12 CW 24890 24920 12 RTTY 24920 24930 12 SSB 24930 24990 10 CW 28000 28070 10 RTTY 28070 28300 10 SSB 28300 29700 6 CW 50000 50100 6 SSB 50100 51000 6 FM 51000 54000 4 CW 70000 70500 2 CW 144000 144100 2 SSB 144100 145000 2 FM 145000 148000 1 CW 220000 221000 1 SSB 221000 222000 1 FM 222000 224000 .07 CW 420000 433000 .07 SSB 433000 442000 .07 FM 442000 450000