Squelch

[bchappuie]

Well today i fire up the PSR-500 and suddenly notice squelch noise full time. I am in P-25 trunking mode, no analog selected. It appears to still be scanning, and i can hear the data channel as it goes by. Just have squelch and static noise all the time. Did reset no avail. Maybe time for a new 436...

 

[ScannerSK]

Try taking off the antenna and tuning to a frequency with nothing transmitting on it. Does adjusting the squelch all the way up or down make the noise disappear?

If not, it is likely a problem with the squelch circuit.

Shawn

 

[W8RMH]

Squelch knobs have been known to wear out over time. You may need to send it in for repair, if it is worth keeping.

 

[DaveNF2G]

Try spraying the knobs with contact cleaner before doing anything more drastic.