ABOVE IS THE   MARCONI MARINE ' SALVITA III ' - AN EMERGENCY TRANSCEIVER FOR LIFEBOAT USE, WITH AN R.F OUTPUT OF BETWEEN 1 AND 3 WATTS, IT HAD A HAND OPERATED POWER GENERATOR IN THE BASE OF THE UNIT  - IT REALLY REQUIRED TWO PEOPLE TO OPERATE IT, AS IT WAS QUITE CUMBERSOME - BOTH MV. CANOPIC AND MV CEDRIC HAD ONE OF THESE TRANSCEIVERS, AS DID MANY OTHER SHIPS - MOST OF THESE WERE REPLACED BY THE ' SURVIVOR '  TRANSCEIVER - A FULLY TRANSISTORISED LIFEBOAT TRANSCEIVER AND MUCH MORE COMPACT.BOTH WORKED ON THE MARINE DISTRESS FREQUENCIES OF 500 kHz AND 8364 kHz CW - WITH THE LATER 'SURVIVOR' ALSO HAVING 2182 kHz RT CAPABILITY..