I used Google to translate this interesting German language piece - http://www.biener-media.de/1431.html
OPS Berlin
In the sixties, Radio Berlin International produced a special program for American soldiers. Shortly after the Wall began on 25th August 1961 at the Berlin 1430 kHz medium wave half an hour for the American soldiers now walled in Berlin. Only one day was called the station "Berlin Iceland", the following have contributed to its longtime name "OPS Outpost Station": "This is OPS Berlin, the programme which entertains and informs. Nightly We broadcast to Americans in West Germany and Europe. "
In music and narration OPS corresponded entirely to competitors, the American soldiers AFN stations. As it seemed to be particularly directed at soldiers Afro-American origin, because when we played music especially black musicians title and the messages dealt alongside Vietnam especially with the racism in the United States. The identity of presenters remained veiled. One can assume that Bert Pierce, Dick Larson Professor Lobo or pseudonyms. At that time broadcast on Radio Berlin International an OPS known as the voice of Martin Dies. This name is the first chairman of the House Un-American Affairs Committee, which in those years Communists chased. In the broadcasts, the address "OPS Berlin, c / o Radio Berlin International, Berlin W8". In this respect, the audience could not have mistaken the origin, if they knew that RBI of the East German foreign service and the postal code W8 on the eastern part of the city indicated.
For medium wave came 23.00-23.30 hours short waves as 1961 6080, 7185, 7300 and 9730 kHz or 1968 6080, 6115, 7185 and 9730 kHz. In January 1972, at a time when the German-German heraufzog relaxation on the horizon, even this station abandoned the Cold War. In US archives (http://arceb.archives.gov/arc/servlet/arc) 45 CIA apparently recordings of OPS programs survived.
