For the following BY-70-1 pass (per Orbitron and Celestrack data acquired just before the pass):
Location : Boone,NC (81.7083° W, 36.2292° N) Time zone : UTC Search period : 2017-01-05 16:18:00 - 7 days 2017-01-12 16:18:00 Conditions : Maximum sun elevation = None Minimum sat elevation = 0 deg Illumination NOT required
Time Satellite Azm Elv Mag Range S.Azm S.Elv -------------------------------------------------------------------------- 2017-01-05 16:29:09 BY70-1 7.2 0.0 ? 2569 163.2 29.4 2017-01-05 16:34:52 BY70-1 284.4 59.1 ? 565 164.7 29.7 2017-01-05 16:40:40 BY70-1 200.8 0.0 ? 2602 166.2 30.0
Using an Alinco DJ-X11T receiver in SDR mode and a handheld Arrow antenna, Doppler-shifted data transmissions were noted at the following UTC times in the waterfall centered on 436.2 MHz:
16:34:10 16:34:40 16:35:10 16:35:40 16:36:10
Transmissions were approximately 1 second in duration and 10 kHz in bandwidth. I assume these transmissions are the 9600bps BPSK (haven't tried to decode). I saw no evidence of voice or other activity during the pass.
Todd AL0I