Brand new problem, was working perfectly. Carrier type noise ONLY in-between calls. Calls are heard perfectly as before problem but noise makes scanner irritating to listen to. Squelch has no effect. Went to 'new ham' info night to see if those guys could help and one said that maybe public service changed carriers. I really don't know what that means. I do hear the same type of noise when scanning on my 2 meter/70cm ham radio. I got some replies on the 246T Yahoo group but no answers yet. Thanks for any help you can offer.