B6 / FG1 does match page 17 of 30 in the 2022 radio study at
https://web.archive.org/web/20231108154816/https://static1.squarespace.com/static/5d4843614bb07d0001e44330/t/62ed3451dad500514a072e5b/1659712594543/MVPSCS+Audit+Report.pdf
therefore - it looks like the Fire radio channel lineup is -
B1 - fire dispatch - 155.4375 R - maybe is ambulance dispatch also
B2 - fire tac - 155.7225 R
B3 - OPS ED (ops edgartown) - shared with police (A3) - ???
B4 - OPS DN (ops down island) - shared with police (A4) - ???
B5 - OPS UP (ops up island) - shared with police (A5) - ???
B6 - fireground 1 - 154.355
B7 - fireground 2 - 154.415
B8 - fireground 3 - 154.07
B9 - fireground 4 - 154.385
B10 - FD OPS UP - ???
B11 - FD OPS DN - ???
B12 - FD OPS ED - ???
B13 - VFIRE 21 - 154.28
B14 - VFIRE 22 - 154.265
B15 - Pager - maybe 154.325 and/or maybe 154.1125
B16 - fire dispatch - 155.4375R - same as B1
B1 and B16 are probably the same so any field unit can click their
channel selector all the way to the end and try to reach a dispatcher
the police lineup is apparently equivalent - except that -
substitute PD Dispatch for FD Dispatch - PD Tac for FD Tac - PD OPS UP
for FD OPS UP etc
A6 and A7 are blank or local options
A8 is jail - maybe 156.03
A9 is tribal - maybe 151.16R
A13 is VLAW31
A14 is CLAW32
A16 is same as A1
the major unknowns at this time are
OPS ED + OPS DN + OPS UP + FD OPS UP + FD OPS DN + FD OPS ED + PD OPS
UP + PD OPS DN + PD OPS ED - so there are 9 unknown frequencies at
this point
we can probably narrow this down because we know which repeaters are
licensed where - maybe we can geolocate some of them - to narrow
things down - lets save that for tomorrow