AO-7 Mode A – V/a Non-Inverting Analog SSB/CW Uplink USB 145.850 MHz through 145.950 MHz Downlink USB 29.400 MHz through 29.500 MHz Active only in sunlight. Generally only active when periods of constant sunlight permit the 24 hour timer to switch between Modes A and B or when the satellite switches from Mode B. … Continue reading Linear Satellite Frequency Summary