The move to St Helena Island and increase in power to 5kw made a huge difference for 4IP. The day before the change, the station broadcast on a lower frequency while the tests on 1010 were carried out. I had a book that showed the radiation pattern of radio stations in Australia - the North-South lobes of 4IP were very narrow and long to cover the narrow strip along both coasts. The East-West lobes were much larger to give general coverage to Brisbane. The day after the move to St Helena, people were ringing in during the morning program with reception reports.
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