These modules are suitable for both non linear FM and Linear SSB type modes by adjusting the bias voltage. 

Suits the following GME Radio Transceivers TX3200, TX3220, TX3400, TX3420, TX3500, TX3510, TX3520, TX3540, TX3550S, TX3600, TX3620U, TX4400, TX4500, TX4600, TX6000 Transceivers.

Module Size: 30mm L x 10.0mm W x 5.4mm H.  For further information please see the Mitsubishi RA07N4452M Data sheet

PLEASE NOTE: THESE ARE GENUINE MITSUBISHI MANUFACTURED IN JAPAN