F—3

Operational Detailss. —The following are the operational details of the stations: —

Short-wave Transmitting Service.—A limited short-wave transmitting service has been in operation throughout the period under review, by arrangement with the New Zealand, Post and Telegraph Department. This has consisted of a New Zealand News Bulletin of ten minutes' duration prepared specially for the Pacific, and commencing at 9.30 p.m. New Zealand time daily. It has been radiated by the New Zealand Post and Telegraph Department's short-wave station ZLT7 on a frequency of 6715 megacycles per second (4467 metres), with an aerial power of 2^kW. This service will eventually be taken over by the short-wave transmittingstations of the New Zealand Broadcasting Service. The two 7-JkW. stations recently purchased for this purpose are at present being installed at Titahi Bay. Whilst good progress has been made on the installation of these transmitters it is expected that some months will elapse before the necessary directive aerial arrays will be completed. Overseas Short-wave Receiving Service.—The short-wave receiving-station operated by the Service at Quartz Hill, Makara, has given very satisfactory service ever since it was first put into operation sixteen months ago. It was of particular use at the times of the cessation of hosilities in Italy, Europe, and in Japan. On these occasions commentaries and programmes were received from the principal countries throughout the world and retransmitted for the benefit of listeners in New Zealand. In order further to improve the service obtained from this station it is intended, in the near future, to extend the aerial system by the provision of additional directive aerials. This will permit the " diversity" system of reception to be used to a larger extent than at present possible for reception from the principal countries overseas, thus reducing to a less noticeable amount the fading and distortion which is a characteristic of short-wave signals.

14

Station. Studio Location. i Transmitter Aerial 1 Energy. Frequency. kW. Kilocyeles/sec. 1YA Auckland 10-00 650 1ZB* „ 1-00 1,070 1ZM 0-75 1,250 1YX 015 880 2ZJt Gisborne 0-25 980 2ZMJ ,, 0-09 1,180 2YH Napier 5-00 750 2YBf New Plymouth 0-10 810 2ZA* Palmerston North 0-25 1,400 2YA Wellington 60-00 570 2YC 99 5-00 840 2ZB* „ 1-00 1,130 2YD „ 0-50 990 2YN Nelson 0-03 920 3ZR Greymouth 0-10 940 3YA Christchurch 10-00 720 3ZB* „ 1-00 1,430 3YL „ 0-30 1,200 4YA Dunedin 10-00 790 4ZB* 1-00 1,310 4Y0 0-15 1,140 4ZD+ Invercargill .. .. ' .. 0-06 1,110 4YZ 5-00 680 * Transmitting Commercial Division programmes. t Owned by the New Zealand Broadcasting Service and operated under contract. { Privately-owned stations subsidized by the New Zealand Broadcasting Service.