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Racal MA-4224
Voice Encryption UnitThe MA-4224 is a fairly sophisticated voice encryption unit, designed by Racal Datacom Ltd.in the UK from 1978 onwards. It is a stand-alone unit that can be integrated with standard military radio sets (Racal and others) by inserting it in the audio line.
The images on the gallery show a typical MA-4224 unit. It can accomodate up to 3 Traffic Encryption Keys (TEK) that are selected with a rotary switch at the front panel. Keys are entered by means of a fill gun or directly on the keyboard. The latter can be cumbersome as the unit doesn\'t have a display to verify the input.The MA-4224 can also be used as a phone encryption unit. For that purpose it would be fitted in a standard briefcase, together with an acoustic coupler and a power supply unit (PSU). A hinge allowed the front panel to be tilted.
As becomes clear from the description below, the MA-4224 is built from conventional (discrete) components, spread over 3 rather large PCBs.Further informations on this complete ops/svc manual with schematics will be supplied in pdfDISCLAIMER: The equipments are sold for collection purpose only, although they look in good conditions, functionality is not verified, they may work as they should or not, therefore they are sold strictly \"as is\", onbuyer\'s responsibility only, no return, no refund.NiCd internal batteries probably have to be replaced
PRICE IS FOR TWO UNITS, AS IN PICTURES
ONLY ONE PAIR AVAILABLE
