Linear transponder CubeSat Deployed from ISS

JAXA has announced three CubeSats, Irazu (Costa Rica), 1KUNS-PF (Kenya) and UBAKUSAT (Turkey) were deployed from the International Space Station on Friday 11th May 2018 between 1030-1040 GMT

All the CubeSats carry amateur radio payloads, Irazu and 1KUNS-PF have telemetry beacons while UBAKUSAT carries a linear transponder for amateur radio SSB and CW communications in additional to CW and telemetry beacons.


Irazu is a 1U CubeSat developed by students at the Costa Rica Institute of Technology Telemetry - Beacon 436.500 MHz

1KUNS-PF is a 3U CubeSat developed by students at the University of Nairobi - Telemetry Beacon 9600bps 437.300 MHz

More information -

UBAKUSAT is a 3U CubeSat developed by students at the Istanbul Technical University

CW Beacon 437.225 MHz
Telemetry Beacon 437.325 MHz

Linear Transponder

• 435.200-435.250 MHz downlink
• 145.940-145.990 MHz uplink

IARU Satellite Frequency Coordination Status -