I am using a BCD536HP with both the DMR and Provoice Upgrade. I live on the border of Montgomery/Elmore county (near the Montgomery Wind Creek Casino) currently using a Tram 1410 Discone Antenna. I have the MMCCD frequencies programmed using the Sentinel software. I can receive Montgomery Sheriff Tactical and an occasional TGID 20136 but not much else. Am I too far away to receive Montgomery Police and Fire/Rescue? My antenna is placed high inside my attic. If too far away, would a diplexer with a second antenna tuned to the 800mhz and above work better? Any suggestions or help is appreciated.