Forum dedicated to the Harris PSPC Product group items such as Orion, M7100/M7200/M7300, P7100/P7200/P7300, Harris Unity XG-100, GE Orion, GE Master Repeaters, EDACS Trunking, Pro Voice, PC Configure, RPM, and other topics relating to Harris, MA-Comm, Ericsson, GE products.
I have a customer with a monogram mobile, model number 344a4210p13 and think the mic is going bad. I don't want to go clear over there if the old mic I have isn't compatible. Thier current mic is model number 344a4210p21, it a desk mic. My old spare is 344a4210p20. It looks like they would be the handheld and desk versions of each other but I'm not sure.
I don't see those numbers in my Monogram manual, but, if you replace the desk mic with a mobile mic, you will need to provide a grounded mic hangup. If the mobile mic is not grounded, the radio will be in monitor mode all the time.