Radio interference
Sir, — I would agree with the view of Mr Howell (May 9) that the allocation of frequencies has shown complete disregard for the problem of likely interference. For so long as the Post Office allocates A.M. frequencies, the problem will continue. However, the concept of 9 kHz spacing does provide for an improvement in broadcasting service through the air space created for new stations., The use of directional antennae by New Zealand stations would reduce some interference but misallocation of frequencies by the Post Office remains the prime cause of the problem. One point that must be; made clear is that A.M, signals in New Zealand do receive interference from overseas. Last night, Radio U (3XB) could not be heard because 3AK Melbourne and KSTP St Paul-Minneapolis dominated 1500-1503 kHz. I have confirmed reception of more than 500 foreign AM signals in less than 10 years from Christchurch — evidence of the significant presence of overseas signals on our AM airwaves. — Yours, etc.,
DAVID RICQUISH, Member New Zealand Radio DX League. May 9, 1979.
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Press, 10 May 1979, Page 16
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175Radio interference Press, 10 May 1979, Page 16
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