Once all cables are seated firmly, replace the bottom cover and secure the screws. Reconnect the power and turn on the radio.
The is an optional internal expansion board that adds AM transmission and FM transmit/receive capabilities to select Icom transceivers, most notably the IC-725 , IC-728 , and IC-729 . Without this unit installed, these radios are typically limited to SSB and CW modes for transmission. Installation Procedure icom ui7 am fm unit install