via the ARRL: Co-Launched CubeSats Settling Into Orbits, Missions

Commissioning and testing continue of the L-Band Downshifter and the University of Iowa’s High-Energy CubeSat Radiation Instrument (HERCI) on the new Fox-1D (AO-92) CubeSat. AO-92 could be available for general use by week’s end, AMSAT said. The co-launched French PicSat CubeSat is seeking telemetry reports. Both were carried into space from India on January 12.

AMSAT-NA reports the University of Iowa tested the HERCI, while AMSAT put the L-Band Downshifter through its paces in the past week. The L-Band Downshifter converts signals received on 1267.350 MHz and injects them into the satellite’s 435 MHz receiver. Due to the increased path loss on 1267 MHz and use of the satellite’s 435-MHz receive antenna on 1267 MHz, pre-launch estimates suggested that it might take around 100 W ERP for horizon-to-horizon access in this mode. “As always, pre-launch estimates are subject to change after real-world testing in-orbit,” AMSAT-NA Executive Vice President Paul Stoetzer, N8HM, qualified.

Testing was promising, as the L-Band Downshifter was turned on for its initial outing on January 20. Stoetzer reports being able to access the transponder with a hand-held transceiver running 1 W into a 16-element Yagi.


via American Radio Relay League | Ham Radio Association and Resources