10 kW transmitter, while its overnight service continued to share the 50 kW transmitter with Radio Mi Amigo's daytime programming on 1187 kHz (253 metres, announced as 259). In December 1976, Radio Mi Amigo moved to 1562 kHz on the 50 kW transmitter, leaving Caroline on 1187 kHz 24 hours a day on the 10 kW. Radio Caroline had greater night-time interference, and it was decided to move Caroline to a new frequency. On 3 March 1977, Caroline closed, announcing that it would return six days later on 319 metres. To allow Radio Mi Amigo to continue broadcasting by day, the engineering work for Caroline's move had to be carried out over six nights, after the 50 kW transmitter was switched off. Caroline returned on 9 March 1977 on 953 kHz, actually 315 metres but announced as 319. This gave reasonable reception by day but strong heterodyne interference at night because the transmitter crystal was off-channel. In July Caroline moved to the adjacent channel, 962 kHz (312 metres but still called 319) and reception in the UK improved. Meanwhile, Radio Mi Amigo had interference on 1562 kHz and changed to 1412 kHz (212 m). Finally, Radio Mi Amigo moved to 962 kHz on 1 December. Due to generator trouble, the two services could no longer be broadcast simultaneously and Radio Caroline again broadcast at night with both stations using the 50 kW transmitter and Radio Caroline began to receive more mail from the continent. At times, a 10 kW transmitter was used to save fuel and relieve the generators. The 10 kW transmitters could run on the Henschel generator beside the two main MAN units and also a Cummins unit on the aft deck behind the wheelhouse. In late 1977, Radio Caroline began sponsored evangelical programmes, and music programmes began at 9p.m. On 20 October 1978, technical and financial problems put the Mi Amigo off the air. Unhappy at the loss of advertising, Radio Mi Amigo terminated its contract with Caroline in November 1978 and broadcast from its own ship, the MV Magdalena later that year, but this was short-lived. Broadcasting was in Dutch and English by day and in English at night, although for the first few months broadcasting finished at 10p.m. On 19 January 1979, the ageing ship took in water and a lifeboat was called to rescue the crew members. Radio Caroline returned to the air on