The studios were based in central Johannesburg and the transmitters were in Sandlane in Swaziland, just across the eastern border of South Africa, not far from the small town of Amsterdam.
Programmes were recorded in Johannesburg and the tapes taken by road to the transmitting station for broadcast the next day.
During the years it operated, SMR recruited many of the announcers who had been on LM Radio and SABC stations, among them Gary Edwards, Frank Sanders, John Berks, Darryl Jooste, Leon Fourie, Barry O'Dee and Gordon Hoffman.
Another former LM radio announcer George Wayne also returned briefly from Australia to join the station.
(Stan Katz, who later went on to become one of South Africa's most prominent broadcasters, joined the station in its early days as a junior programming assistant).