RADIO NOTES

Rotorua Morning Post, Volume 2, Issue 256, 21 June 1932, Page 6

RADIO NOTES

Kathode.)

(By

Local conditions have not been good for reception during the past weelc. Changeable climatic conditions have brought with them a train of static and fading. Daylight reception has heen normal, hut soon after darkness fell, static made listening not altogether a pleasure. 2YA has heen the most dependable station, though 3YA has arrived with good strength on several occasions. Broadcasts from ships, aeroplanes, submarines, and even golf courses are carried out by a novel method. It is not possible to run wires from a broadcasting* studio to a moving vehicle and it is not practical to run trailing wires between the studio and out-of-the-way places golfers get into. One often wonders how this is done. Aetually it is done by means of a portable transmitter, carried on the back of .the announcer and linked up with the studio via short-wave radio. These low powered, short-wave signals are picked up by a short-wave receiver, and placed upon the modulating apparatus of the transmitter. An International Wireless Conference is to be held in Madrid this year, and amateur- transmitters are' banding themselves together in order that they may claim a fair proportion of the available wave bands. The amateur has developed all of the bands below 200 metres, and his discoveries have been quickly taken up hy commercial interests. It is not yet known whether the New Zealand amateurs will send a representative, but they hope to have a voice in the conference. In 1927, Mr. Gibbs, recently chief telegraph engineej, fought their cause at the Washington conference, and his efforts on their behalf will go down in the annals of amateur radio. No less than 37 stations now operate on the broadcast band in New Zealand. They are: — 1YA Auckland, 332m, 500w.; 2YA Wellington, 416.4m, 5kw; 3YA Christchurch,. 305.9m, 500w; 4YA Dunedin, 461.3m 500w; 1ZB Auckland, 275.2m, 18w; 1ZH Hamilton, 479.5m, 45w; 1ZJ Auckland, 227.3m, 26w; 1ZM Manurewa, 247.9m, 17w; 1ZQ Auckland, 252m, 25w; 1ZR Auckland, 275.2m, 70w; 1ZS Auckland, 211.3m, 5w; 2YB New Plymouth, 243.9m, 100w; 2ZB Napier, 238.1m, 7.5w; 2ZD Masterton, 245.2m, 2.5w; 2ZE Eketahuna, 247.9m, 10w; 2ZF Palmerston North, 285.7m, 150w; 2ZH Napier. 238.1m, 65w; 2ZI Hastings, 266m 15w; 2ZJ Gisborne, 260.9m, 20w 2ZK Wanganui, 500m, 120w; 2ZL Hastings, 225.6m, 26w; 2ZM GiS- " i- s. "•••«> -"v'1

borne, 260.9, HOw; 2ZO Palmerston North, 285.7m, lOw; 2ZP Wairoa, 366m, 45w; 2ZW Wellington, 267.9m 400w; 3ZE Greymouth, 366m, 45w; 3ZR Greymouth, 366m, 80 w; 3ZC Christchurch, 250m, 250w; 4ZB Dunedin, 277.8m, 20w; 4ZF Dunedin, 277.8m, 7 w; 4ZI Invercargill, 258.6 m, 8w; 4ZL Dunedin, 245.9m, lOOw; 4ZM Dunedin, 277,8m, 45w; 4ZO Dunedin, 277.8m, 40w; 4ZP Invercargill, 258. 6. 500w; 4ZR Balclutha 223m, 4w; 4ZW Dunedin, 277.8m, 50w. The Rotorua section of the Radio Emergency Corps have eompleted their portable emergency transmitting* and receiving* sets, and during tests over the week-end, results proved that the outfits were efficient. These portable sets have heen , built for use in any emergency, and i the Rotorua transmitters are to bo complimented on the time and money ■ they have spent to provide this pub- : lic ' safeguard. These instruments i and operators are at call, when ever required, and their services are given free of charge. Kathode has received communication from the seeretary of the Radio ' Emergency Corps, asking him to publish the names of those business men in Rotorua who have donated equipraenjk to the corps. They are: Mr. L. Shaw (Miss Macdermott), Mr. L. Wolliaips, Messrs. Schofield and ICrogh, Mr. R. Reid, and Mr. R. Stewart. No doubt the stall at the Winter Show which. will be run by the Radio Emergency Corps and the New Zealand Association of Radio Transmitters will draw much atteni tion. The public are invited to in5 spect the transmitters and receivers f in the stall, and free radio messages ] may be sent to any address in the : world.