The BY70-1 CubeSat launched on December 28 from the Taiyuan Space Launch Center in China, but in a lower orbit than intended. The satellite carries an Amateur Radio FM transponder.
BY70-1 was intended to go into a 530-kilometer (approximately 329-mile) circular Sun-synchronous orbit, but it appears the orbit is 524 x 212 kilometers, which will give the spacecraft an orbital
lifetime of just a month or two.
Paul Stoetzer, N8HM, reported working Wyatt Dirks, AC0RA, through the FM transponder during the 1709 UTC pass on December 28 and commented that the uplink requires precise frequency adjustment, there’s a delay on the downlink, but the signal is strong,”
BY70-1 is a 2U CubeSat project for education and Amateur Radio. It features 3-axis stabilization and deployable solar panels. In addition to the FM transponder, BY70-1 has a camera, and plans call for downloading images and telemetry via a 9600 bps BPSK downlink.
The IARU Amateur Satellite Frequency Coordination pages list an uplink of 145.920 MHz, and a downlink of 436.200 MHz.