Just verified the Logic board to be HLB4101B Batlabs.com lists
HLB4101"A"as 42-50mhz. Prob same so, 42-50mhz range.

Motorola Maxtrac (2ch) Model # D51MJA93A5AK (42-50mhz) 50watt, 5pin
accessory connection, c/w *NEW* mic, *NEW* Heavy duty wiring harness
with in-line fuse, *NEW* bracket. Condition on all items rate "NEW"
with tags too!!! Yep,all Org. Motorola equip and accessories! Radio
powers up on 12vdc. Unsure if they were ever programmed but, any 2-way
shop can handle the job. The local Motorola shop programs for $45CND.
These are Sold "AS-IS" no warranty. Guarantee not to be DOA. Esit ship
cost will be $15USD. Dig pic avail. Email for questions or concerns.

$100USD + ship