salem fire

Last week I stopped hearing Salem Fire. They are on a Motorolla Type II system. I still hear every body else on the system just fine. When a Salem Fire talk group ID appears there is no sound and when checking to see whick freq. they are on it jumps back and forth between the contol freq. and...

Has anyone else had any problem hearing Salem Fire Dept on the 800mhz trunking system? Last week they just up and disapeared and haven't heard them since. I checked my equipment and everything seems to be working fine. I'm still getting other talk groups on the system. Any ideas or sugestions...