[TrunkCom] determining base and offsets for a VHF/UHF Motorola trunking system

[Jeff Kenyon]

Good evening everyone, I am just wondering if anyone knows how I can
figure out the offsets used on an unknown VHF or UHF Motorola trunking
system?  Right now my radio is showing 410.7875 in the Detroit area with a
strong Motorola CC, and I checked radioreference.com, and they don't have
any record of Motorola systems using 410.7875.