RTLSDR

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A subreddit for the low-cost software defined radio (SDR) community. While originally dedicated to the [RTL2832U USB rtl-sdr project, relevant content related to general SDR, RF, and similar projects are also welcomed.

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Using a Nooelec SmarTee and getting these periodic wide band dips in signal strength (blue bars). I assume it's something wrong with my SDR. Is that a power issue or something? (lemmy.world)

submitted 6 months ago by [email protected] to c/[email protected]

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[–] [email protected] 1 points 6 months ago (2 children)

hmm, 152MHz seems quite a long way out from 137MHz to cause issues, but if it's very strong I guess that could the issue.

[–] [email protected] 2 points 6 months ago (1 children)

Yeah, the only reason I'm leaning towards it is because the typical periodicity and duration seems to match with my dropouts. I might try running an experiment with two SDRs tuned to the different frequencies to see if they line up.

[–] [email protected] 1 points 6 months ago

Yeah, I was going to suggest that if you had a second SDR

[–] [email protected] 1 points 6 months ago (1 children)

137MHz is also quite close to the airband, sometimes nearby aircraft can cause overload

[–] [email protected] 2 points 6 months ago (1 children)

Oh that’s very interesting. We live right next to an airport! Planes flying around all the time.

I’ll have to take a look at that.

[–] [email protected] 1 points 6 months ago

yeah, that might do it