From The RadioReference Wiki

GE Ericsson MPA

The MPA's were a flagship radio for GE/Ericcson. They were available in VHF, UHF, and 800MHz. They are known to be very rugged, quite large, and have excellent audio.

There was some HAM Flash firmware written for these radios that allows them to be keypad programmable. The picture below is mostly MPA radios except for the 3 on the front right side. MPA lineup.jpg