FUNcube-1 was AMSAT-UK’s first CubeSat project designed to provide educational outreach for schools and colleges around the world and a two-way SSB/CW communications transponder for radio amateurs.
Communication subsystem:
• 145.935 MHz BPSK Telemetry 30/300 mW
• Inverting SSB/CW transponder 300 mW
– 435.150 – 435.130 MHz Uplink
– 145.950 – 145.970 MHz Downlink
The passband may be up to 15 kHz higher depending on on-board temperatures. Low temperatures give higher frequencies. The transponder is usually only active during night passes and at weekends. During holidays such as Christmas, New Year, Easter, the transponder maybe activated for extended periods.