Radio testing, key-ups and "mic blows" heard over the last couple of days. Radio ID's seen were additional OFI units (19046xx), CFD helicopter (1906811) and a few of the OEMC consoles (9110041, 9110047, 9110051). No apparatus radio ID's seen, just portables. I believe but can't confirm that not all of the mobile radios can operate on P25 UHF and P25 800 Mhz. trunking? I haven't seen too many ambulance portables testing.