@ch00f to [email protected]English • 8 months agoUsing 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?imagemessage-square14arrow-up16arrow-down12starcopymore-verticalflagCreate ReportslashBlock user
arrow-up14arrow-down1imageUsing 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?@ch00f to [email protected]English • 8 months agomessage-square14starcopymore-verticalflagCreate ReportslashBlock user
minus-squareThomas DouweslinkfedilinkEnglish1•8 months agohmm, 152MHz seems quite a long way out from 137MHz to cause issues, but if it’s very strong I guess that could the issue. arrow-up11arrow-down10file-textreply1starmore-verticalmailMessageflagCreate ReportslashBlock user
minus-square@ch00fOPlinkEnglish2•8 months agoYeah, 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. arrow-up12arrow-down10file-textreply1starmore-verticalmailMessageflagCreate ReportslashBlock user
minus-squareThomas DouweslinkfedilinkEnglish1•8 months agoYeah, I was going to suggest that if you had a second SDR arrow-up11arrow-down10file-textreply1starmore-verticalmailMessageflagCreate ReportslashBlock user
minus-squareThomas DouweslinkfedilinkEnglish1•8 months ago137MHz is also quite close to the airband, sometimes nearby aircraft can cause overload arrow-up11arrow-down10file-textreply1starmore-verticalmailMessageflagCreate ReportslashBlock user
minus-square@ch00fOPlinkEnglish2•8 months agoOh 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. arrow-up12arrow-down10file-textreply1starmore-verticalmailMessageflagCreate ReportslashBlock user
minus-squareThomas DouweslinkfedilinkEnglish1•8 months agoyeah, that might do it arrow-up11arrow-down10file-textreply1starmore-verticalmailMessageflagCreate ReportslashBlock user
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.
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.
Yeah, I was going to suggest that if you had a second SDR
137MHz is also quite close to the airband, sometimes nearby aircraft can cause overload
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.
yeah, that might do it