audience of listeners in the New Territories and on the south side of Hong Kong Island. In the latter areas the receiving aerials are screened from the transmitters by intervening high ground. It was therefore decided to change the shortwave transmitter frequency of 9.52 mc/s to 3.94 me/s (76 metres) in order to concentrate its signal to local areas as much as possible and in particular to provide a supplementary service to those screened areas where medium-wave reception was poor. The transmitter uses an aerial designed to give maximum high-angle radiation.
14. As long as the transmitters are in the present position, i.e., sea level, there is probably little more that can be done to improve the Colony coverage. However, during a survey by the Colonial Office Broadcasting Advisory Engineer, Mr. W. A. Roberts in June, Cable and Wireless engineers cooperated in tests to assess the value of re-siting transmitters on higher ground which gave encouraging results.
15. A spare transmitter is maintained to cover breakdown on the medium-wave transmissions. There is no standby to give such continuity of service on the shortwave frequency, as is shown by the following statistics of interruptions during the year, provided by the Hung Hom transmitting station:
English Chinese Programme Programme
Shortwave Programme
Hours "on the air"
4,101
3,801
3,114
Numbers of interruptions
10
8
6
Total duration of interruptions
(minutes)
7
4
27
Programme Hours
16. Logged Programme hours are virtually the same as in the previous year:
English Programme
Chinese Programme
3,894 hours
3,672 hours
A daily average of 10.7 and 10.1 hours daily, respectively.
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