Military Satilite FreqFLEETSATCOM Military Satellite Channels in the 225-400 MHz Band:
Erich Schulz
-- FLEETSATCOM Military Satellite Channels in the 225-400 MHz Band:
(By bandplan - each satellite uses one bandplan)
Alpha Bravo Charlie Delta
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250.450 250.550 250.650 250.350 Ch 1 - USN Fleet Broadcast
260.350 262.450 262.050 263.550 Ch 2 / WB F1 - National
260.375 262.475 262.075 263.575 Ch 2 / WB F2 - Command
260.400 262.500 262.100 263.600 Ch 2 / WB F3 - Authority
260.425 262.525 262.125 263.625 Ch 2 / WB F4 - (500 Khz Wide)
260.450 262.550 262.150 263.650 Ch 2 / WB F5 - (Transponder )
260.475 262.575 262.175 263.675 Ch 2 / WB F6
260.500 262.600 262.200 263.700 Ch 2 / WB F7
260.525 262.625 262.225 263.725 Ch 2 / WB F8
260.550 262.650 262.250 263.750 Ch 2 / WB F9
260.575 262.675 262.275 263.775 Ch 2 / WB F10
260.600 262.700 262.300 263.800 Ch 2 / WB F11
260.625 262.725 262.325 263.825 Ch 2 / WB F12
260.650 262.750 262.350 263.850 Ch 2 / WB F13
260.675 262.775 262.375 263.875 Ch 2 / WB F14
260.700 262.800 262.400 263.900 Ch 2 / WB F15
260.725 262.825 262.425 263.925 Ch 2 / WB F16
260.750 262.850 262.450 263.950 Ch 2 / WB F17
260.775 262.875 262.475 263.975 Ch 2 / WB F18
260.800 262.900 262.500 264.000 Ch 2 / WB F19
260.825 262.925 262.525 264.025 Ch 2 / WB F20
260.850 262.950 262.550 264.050 Ch 2 / WB F21
251.950 252.050 252.150 251.850 Ch 3 - Navy Relay
253.650 253.750 253.850 253.550 Ch 4 - Navy Relay
255.350 255.450 255.550 255.250 Ch 5 - Navy Relay
256.950 257.050 257.150 256.850 Ch 6 - Navy Relay
258.450 258.550 258.650 258.350 Ch 7 - Navy Relay
265.350 265.450 265.550 265.250 Ch 8 - Navy Relay
266.850 266.950 267.050 266.750 Ch 9 - Navy Relay
268.250 268.350 268.450 268.150 Ch 10 - Navy Relay
269.750 269.850 269.950 269.650 Ch 11 - Navy Relay
243.945 244.045 244.145 243.845 Ch 12 - AFSATCOM Narrowband
243.955 244.055 244.155 243.855 Ch 13 - " "
243.960 244.060 244.160 243.860 Ch 14 - " "
243.965 244.065 244.165 243.865 Ch 15 - " "
243.970 244.070 244.170 243.870 Ch 16 - " "
243.975 244.075 244.175 243.875 Ch 17 - " "
243.980 244.080 244.180 243.880 Ch 18 - " "
243.985 244.085 244.185 243.885 Ch 19 - " "
243.990 244.090 244.190 243.890 Ch 20 - " "
243.995 244.095 244.195 243.895 Ch 21 - " "
244.000 244.100 244.200 243.900 Ch 22 - " "
244.010 244.110 244.210 243.910 Ch 23 - " "
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Bandplan "Charlie" is in use at some orbital location visible to the
western USA - Signals are not very strong, so a minimum necessity for
monitoring is a good, sensitive reciever and an antenna (such as a
discone)
that is tuned to the appropriate frequencies. An antenna for other bands
will not work well enough, and it's best to use a beam antenna pointed
at
the geostationary satellites.
Most communications on the FLEETSATCOM satellites will be scrambled,
either
with DES-type digital, or Coast Guard (and Navy) type TDM (Time Division
Multiplex - the "turkey-gobbler" sound). There is, however, some
non-critical clear voice, and some circuit setup comms in the clear
prior
to scramble start. The AFSATCOM channels are narrowband digital mode,
ALWAYS scrambled.
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Erich Schulz The older the bull the bigger the horn!
esc...@winternet.com Winternet.com
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