Fox-1 Engineering Unit in Pictures June 28, 2017August 16, 2014 by amsat admin Various photos of RF and general testing going on. Taking a close look On the RF test bench with WB5IDM Fixin’ to run some audio tests Checking the deviation of the high speed telemetry Slow speed telemetry Partial stack showing PSU board bottom IHU board A lot of components and shielding packed into the 8 mm board to board space! Quick check of the PSU under “solar power” The tester needs power, too!