I am having an issue with my new PSR 600 on MARCS. It refuses to stop on North Canton Fire TG 25136 when scanning. I download the MARCS system from RR in the ARC 500 software and I have TG 25136 in my scanlist. The PSR 600 is getting 3 to 4 bars of signal strength on the control channel and it is connected to an attic mount Scantenna. My BCD996T gets only 1 bar on the control channel connected to the stock antenna and it will stop on North Canton Fire traffic every time.