Image courtesy of Heinrich Busch http://www.seefunk.hbusch.de

THE TOP PICTURE SHOWS A EARLY EXAMPLE OF A MARCONI MARINE ' OCEANSPAN ' IT WAS A M.F / I.F / H.F 100 ODD WATT TRANSMITTER , DEPENDENT ON WHAT ' MARK ' LEVEL IT WAS , SOME HAD CW ONLY , SOME HAD CW AND 2 MC/S RT AND THE LASTEST ONE'S HAD CW PLUS I.F AND H.F RT (A.M) - I SAILED WITH MANY OF THESE TRANSMITTERS - WITH THE DEMISE OF THE COMMONWEALTH AREA SYSTEM IT WAS AT TIMES DIFFICULT TO SAY THE LEAST TO USE ONE OF THESE  TRANSMITTERS TO CONTACT THE ' SLEEPING GIANT ' BACK AT PORTISHEAD RADIO / GKA  ESPECIALLY IF YOU WERE OUT IN THE SOUTH PACIFIC - BOTH MV CANOPIC AND MV CEDRIC HAD ONE OF THESE TRANSMITTERS. ESSO'S ' ESSO PURFLEET' ALSO HAD ONE OF THESE INSTALLED AS THE MAIN TRANSMITTER.

THE ABOVE PHOTOGRAPH IS FROM THE P & O VESSEL ARCADIA. IT  SHOWS AN EARLY OCEANSPAN WITH A CR300 RECEIVER TO ITS LEFT - THE RADIO OFFICER IS KEN GIBSON, THANKS TO DON CHAPMAN FOR IDENTIFYING THE RADIO OFFICER / VESSEL

Photo courtesy of Steve Hill's Radio Museum / www.qsl.net/vk4czt