IC-R8500 MAIN UNIT

Description

MAIN UNIT
Main Unit Of IC-R8500, The centeral Board Connect Coververter Board, Mix Board,IF Board And RF Board.
OEM ICOM USA,

The IC-R8500 utilizes a complex mixing architecture where the Main Unit (Main Board) interfaces with a Converter Board (CONV-B UNIT) for reception, particularly for frequencies above 1 GHz. The CONV-B unit serves as a down-converter, and when it fails or loses connection, the radio typically becomes insensitive or noisy, especially above 30 MHz.