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Author Topic: Air Horn and Buzzer both poorly...  (Read 529 times)
AlanC
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« on: July 16, 2017, 2124 UTC »

The 'Air-Horn' on 4020 is not radiating it's normal signal; there is plenty of carrier but the modulation is a weak 'prrrr-prrrr-prrrr' instead of the normal strident tone. Sounds 50Hz-ish.

Coincidentally the buzzer on 4625 is almost completely off air- it was very weak earlier and now it's almost completely gone, no carrier just a bit of sidebands. I'm struggling to believe its just bad propagation, I've never heard it that bad before and everything else seems normal.

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Cheers
Alan
MDK2
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« Reply #1 on: July 17, 2017, 1640 UTC »

Interesting. Where's your QTH?
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Denver, CO.
Grundig Satellit 750, Tecsun PL-600, SDRPlay RSP2 Pro.
two homebrewed mag loops (10' and 15' circumference).
Soon to include RA0SMS mini-whip, but need mounting before that goes online.
eQSL's appreciated, wickerjennie (at) gmail
sat_dxer
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« Reply #2 on: July 17, 2017, 2021 UTC »

4625kHz heard buzzing away from 2015z 17 Jul 17 on the Twente WebSDR...
« Last Edit: July 17, 2017, 2028 UTC by sat_dxer » Logged

Most times & frequencies posted are only an approximation.
Due to the insubstantiality of any “control list” or other designator codes, they are never used.
-30-
AlanC
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« Reply #3 on: July 20, 2017, 1042 UTC »

Sheffield, UK but I was listening on the Twente webSDR.
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Cheers
Alan
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