Radio North Sea International (RNI; ; ) was a European offshore radio station run by the Swiss firm Mebo Telecommunications, jointly owned by Swiss engineer Edwin Bollier and his business partner, Erwin Meister. RNI broadcast for less than five years in the early 1970s and, courting both disaster and success, made a modest financial profit. Radio Gloria In 1968 Erwin Meister and Edwin Bollier were among a group intending to broadcast as Radio Gloria from the former Wonderful Radio London ship Galaxy. On 2 July 1968, the German government banned off-shore broadcasting. The Gloria project collapsed. Meister and Bollier bought their own vessel, the Bjarkoy, and set up a radio station. They renamed their ship Mebo, then Mebo I, and, after transmissions ended, Angela. Before fitting was completed, the Mebo was found to be too small for broadcasting but too big as a tender. However, she was used while the Mebo II was operating off England. Mebo II Originally Silvretta, and built in Slikkerveer, Netherlands in 1948, the 630-tonne vessel was wide, deep and long. In 1969 Mebo Telecommunications bought Silvretta, fitted her as a floating radio station, and renamed her Mebo II. Since Mebo was too big to tender Mebo II off the Netherlands, RNI used a smaller vessel, Trip Tender, which Radio London had also used (when she was called Offshore 1.) The psychedelically-painted Mebo II carried a MW transmitter at 105 kilowatts (more than twice the 50 kW TXs used by Radio London and Radio Caroline), though it operated at 60 kW or less. One of five RCA-built prototype transmitters, and the only one still in service, it rarely if ever broadcast at full power. It had the highest power of any ship-based pirate station, and the second-highest of any ship-based broadcast station Mebo II also had SW and FM transmitters, able simultaneously to broadcast four different streams on four different channels. On 23 January 1970, Mebo II began test broadcasts from the Dutch coast, in English and German. When regular broadcasting began on 11 February 1970 it was more popular in the United Kingdom than the Netherlands or Germany. On 23 March 1970 Mebo II sailed to the East coast of England, arriving at 09:00 on 24 March 1970 and anchoring in international waters, five miles from Clacton. Jamming The Labour government in Britain began jamming Mebo II'''s MW signal at 2030 hours on 15 April