Thanks for the help , It is a HP-1 , I have no problem receiving any other police frequencies NJ State , Camden , it's only Philadelphia that's there is a problem . I have it set as a favorite and all the service types are on .
Okay, well lastly; are you sure you're using the correct frequencies? Have you done a HomePatrol database update recently? I'd reset the unit to factory, flash the firmware and upload the new database before giving up all hope.
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If its just the one, that may be part of a problem, but not enough that you get total silence. Ok try this. Manually tune your HP1 (if you can do so with that radio) to either 853.3125 or 853.7875. Turn squelch down to zero. Do you hear anything at all?
Are you the original owner of this radio? Have you set the scanner to "avoid" any channels? On page 19 of the following pdf file (owners manual) they discuss setting and removing avoided channels. I don't own this radio just something I thought of when reading the manual.