I have a Uniden bc95xlt scanner! it is less than 1 yr. old. it will lock on to a channel and not unlock to continue scanning. I can't find my paperwork to prove age of scanner! Pls. Help!
It sounds to me as if your scanner is locking on to a 'BIRDIE', which is an internally generated frequency in the scanner, all scanners have this by default, your user manual usually has a page, near the back of the manual, with known 'birdies', and there a lots.
When your scanner locks onto a 'BIRDIE', which is a frequency with no voice audio, the best thing to do is press Lockout button, during the scan, your scanner will, if there is no other problem with it, continue to scan, until it finds another 'BIRDIE', then you do the same thing as I've described, until you've locked out all the 'BIRDIES'.
I hope this info was useful.