VR-N7500 Strange receiver issue "creaking door"
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Bengt
May 30, 2025, 9:52:35 AMMay 30
to Vero VR N7500 Dual Radio Band
Hi,
Discovered a strange sound when receiving some "weak" stations. After
further investigation the "door" sound appears only at abt -90dBm signal
level. Eighter lower or higher signal - the strange sound goes away.
Sound example attached.
Settings as follows:
145.425 12,5kHz BW. SQ does not interfer.
Also at 70cm, there is a slight appearance, but main concern is on 2m.
Is there any schematics for the radio and/or any ideas on what is going on?
BR/73
SM6TOB, Bengt
--
Discovered a strange sound when receiving some "weak" stations. After
further investigation the "door" sound appears only at abt -90dBm signal
level. Eighter lower or higher signal - the strange sound goes away.
Sound example attached.
Settings as follows:
145.425 12,5kHz BW. SQ does not interfer.
Also at 70cm, there is a slight appearance, but main concern is on 2m.
Is there any schematics for the radio and/or any ideas on what is going on?
BR/73
SM6TOB, Bengt
--
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