roboticsguy1988 said:
It happens on just the trunked channels. closing the bank helped it seems but it still comes on a lot.. It seems to go away if i move it around and such but no matter where i sit the scanner it eventually starts making that noise. I am in the process of putting up an outside antenna.... perhaps that may help. But when it catches on the channel i notice the scanner says "VC". But it doesn't sound like anything a tower would emit, as you can tell from listening to the file.
1. When the scanner is in MO mode, the squelch is overridden. Internally it has to unsquelch the transmission (with audio muted) to listen to the control channel. So you might try leaving it on JUST this trunked system, closed mode, and the squelch fully counter-clockwise.
2. Listening to the WAV file; the first thing I notice is that the signal is "broken" - as if the squelch is cutting in & out. Theoretically that should not happen with a MO channel,... except that you indicate the scanner displays "VC". That means the scanner thinks it is receiving a voice channel. The cutting in/out could be signal level (an antenna should give you more), but that won't change what the signal sounds like.
3. The recording sounds more like a digital transmission than it does a control channel. Have you checked the RR database to determine if the agency you are trying to listen does not at least have some digital?
