In the pre ARMER days I heard Matts on Minnetonka and Hopkins PD mains, but nothing since the switch to ARMER, I suspect they were talking on the Eden Prairie radio system that is patched to ARMER TG's using the Patrol 1 TG on the EP system- TG 005 which is hard patched to the ARMER Patrol 1 TG. There are Multiple TG's patched between EP and ARMER- EP Mall, EP High school, EP Fire Main, Flying Cloud Airport.
I have never been able to identify Matt's as using a radio dispatch to send out there truck.