Messing around this morning picking up a few satellites with my cheap'n'cheerful RTLSDR receiver. The antenna is a 9 element yagi pointed directly up with a couple of mini-circuit amplifiers to get over the cable loss. Attached is a plot of the pass of FO-29 (orbit 82835). Time is vertical (about 3 minutes), and frequency is horizontal (about 192kHz bandwidth centred at around 435.9MHz). This image represents only a fraction of the actual data recorded which is around 12 minutes long and 1.5MHz in bandwidth. The data shown consists of the CW beacon on the left and downlink on the right including a number of SSB and CW signals.

Oddly no signals were heard in later passes from ESTCube-1 which I've heard on a number of previous occasions.