I was at a friends house today troubleshooting his rtl-sdr installation. He said it receives nothing...all 3 sites (The local P25 simulcast state system) he had programmed were "IDLE". He uses SDR Trunk in an MX Linux laptop. It was working fine at one point. I took dongle home and ran it on both my Linux and Windows PC's....only to see only ONE site working. Is there a way to troubleshoot these things? It seems strange that I was able to hear the 1 P25 simulcast site. There are 2 more sites programmed in SDR trunk. But they both read "IDLE"......