Ch. Freq. Usage Ch. Freq. Usage01 476.425 Simplex/Duplex 21 476.925 Simplex02 476.450 Simplex/Duplex 22 476.950 Simplex03 476.475 Simplex/Duplex 23 476.975 Simplex04 476.500 Simplex/Duplex 24 477.000 Simplex05 *476. 525 Simplex/Duplex 25 477.025 Simplex06 476.550 Simplex/Duplex 26 477.050 Simplex07 476.575 Simplex/Duplex 27 477.075 Simplex08 476.600 Simplex/Duplex 28 477.100 Simplex09 476.625 Repeater 29 477.125 Simplex10 476.650 Repeater 30 477.150 Simplex11 #476.675 Back-upEmergency Channel 31 477.175 Simplex12 476.700 Repeater 32 477.200 Simplex13 476.725 Repeater 33 477.225 Simplex14 476.750 Repeater 34 477.250 Simplex15 476.775 Repeater 35 477.275 Simplex16 476.800 Repeater 36 477.300 Simplex17 476.825 Repeater 37 477.325 Simplex18 476.850 Repeater 38 477.350 Simplex19 476.875 Repeater 39 477.375 Simplex20 476.900 Repeater 40 477.400 SimplexUHF CHANNELS & FREQUENCIES16* Emergency calling for both simplex and duplex operation# Back-up Emergency ChannelChannels 22 and 23 are used for Telemetry and Telecommand applications, voice communicationsare not permitted on these channels.Please do not use this channel in non-emergency cases.