Well it appears that CPD is having radio issiues with the new narrow band, to read more go to Second City Cop: Radio Problems look at the comments someone on this site help contribute.
As a lot of people pointed out there, it's not the narrow banding causing the problems. It's the fact that CPD radios are old and wearing out. Especially the batteries. This isn't a new issue with them.
Buy cheap batteries. Dont let them fully charge, Its bound to happen. The CPD is using mostly XTS3000 and XTS5000 both are narrowband compliant. The few and far betweeen Sabers are beign phased out.