145.950 mhz fm downlink
fm transmissions will cycle between a voice id as rs01s, select telemetry values, 24 international greeting messages in 15 languages and sstv images. one of the messages will be a conversation between yuri gagarin and ground control.
435 mhz - 145 mhz linear transponder
the linear transponder will operate in mode u/v (70 cm up, 2m down). it is an 16 khz wide inverting passband and the convention will be to tx lsb on the 435 mhz uplink and rx usb on the 145 mhz downlink. this mode is designed to work with low power transmitters and omni antenna.
145.919 mhz cw beacon
the cw transmissions will be callsign id rs01s, select telemetry, and callsigns of people actively involved with the ariss program.
145.920 mhz ssb bpsk-1000 telemetry
the bpsk transmissions will feature a new 1kbpsk protocol developed by phil karn, ka9q to be readable in low signal level conditions. the bpsk data will transmit satellite telemetry. when the cw2 beacon on 145.919 mhz is active this indicates that the bpsk-1000 format is being transmitted. if the cw1 beacon on 145.939 mhz is active this indicates the backup of bpsk-400 format is being transmitted.
