Observation 13302160: NOAA 20 (43013)

asu.plt.lab.az · January 29, 2026, 11:24pm

I’ve been working hard to get the S-band station up and running. What do you think about this observation? I was pointed southwest with about 70 degrees of elevation using a stationary parabolic grid S-band antenna (supposedly). Is this a valid S-band signal

LTE/5G filter on…..

And opinion on these 2 if you all can comment too….

NO FILTERS OR LNA ON THE LINE YET - these were the first tests

Also 1 more

This one also threw me for a loop because I got a data file during the observation. This was taken before I added the LTE/5G filter (we have two cell sites—one not even 40 feet away blasting right at us, and another on top of the building across the street).
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All on Pi 4b 32mb SD card - Recent Satnog/Pi image used to set up
HackRF One SDR / Gain 64

pe2bz · January 30, 2026, 8:07pm

Someone has to bring the bad news, I would say all your observations should have the “bad” status.

You could try the hackrf with some sdr tool to check the gain / offset ?

pe2bz · January 30, 2026, 8:27pm

and much weaker

are valid Noaa 20 observations on that same frequency.