Strange receiver issue "creaking door"
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Bengt
May 30, 2025, 5:27:40 AMMay 30
to Vero VR N7500 Dual Radio Band
Hi all,
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?
Discovered a atrange 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?
73
SM6TOB, Bengt
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