On 1/28/21 9:26 AM, sjdevience@gmail.com wrote:
I monitored 435-438 MHz last night with an SDR to look for a signal. My heatmap shows CAPE 3 at 437.325 MHz and an unknown signal at 436.6 MHz. Does anyone know what that could be? I didn't see any of the satellites from that launch listing that frequency, nor were the other active satellites with that frequency over me at the time (at least that I could find).
There is a weak blip at 435.785 MHz around the same time, but with poor SNR.
The blip I see, zooming into your picture, at 435.690 to 435.700 at 23:46 looks like the "Fox tail". Depending on your SDR dongle, being off of the advertised beacon at 435.750 by that much might make sense.
Perhaps I missed it, but what antenna configuration are you using?
--- Zach N0ZGO