The GTR225B is a good quality, rack mount 16W, dual watch, multi voltage, transceiver.
A great replacement for your old Comms unit.
The Comm function of the GTR225B contains a quality receiver with very good noise filtering capability, and a transmitter with 16W output.
It has a good quality 2 place intercom
For more information Click Here to access the Garmin website GTR225B page.