The Voice of the International Radio Society

Radio Record, Volume VIII, Issue 25, 28 December 1934, Page 43

The Voice of the International Radio Society

By

Leslie W.

Orton

(DX 140.).

ARLY in 1934, the Internutiona: Radio Society formulated a plan whereby members in different parts of the world might speak to each other and carry out tests together. Unfor: tunately arrangements were somewhat delayed because of the time taken to notify members in different parts of the world of the proposed plans. The first tests in connection with the LR.S. . trans-world tests originated from a New Zealand station ZL4CH, operated by a very enthusiastic mem ber of the society, Mr. Jim Searle. Mr. Searle sent out transmissions upon 80 metres with a power of 15 watts. Reports of reception of. these signals were very scanty, but a member in lissex, IIngland, and myself, in Uxbridge, heard faint CQ signals at the time, and upon the wavelength used by ZLACH. It was fairly certain that these signals did originate from New Zealand. I then decided as a 15-watt station could be heard in England on the 80metre band, a station of the same power would be heard more consistently on 40 metres. Consequently, arrangements were made for a regular schedule to be broadcast from England to New Zealand. Within a week of the transmission from: ZL40N, a schedule was arranged for regular weekly transmissions to Ney Zealand. During the first transmission on the schedule, the times of transmission were passed to the ew Zealand headquarters of the societ: and the "N.Z. Radio Times" the kind co-operation of ZL3AX. The schedule arranged was as. fol-

lows :-Ist. and 2nd Saturdays in each month, 5 to 5.80 am., G.M-T., G-2YH, Grays, Essex, 40m. band; 7 to 7.30 a.m., G.M.T., G-2LZ, Essex, 40m. band, 250 watts. 8rd and 4th Saturdays in each month, 7 to 7.30 am., G.M.T., G-2YH, Grays, Essex, 40m. band. _ Next I turned my attention to giving British and Continental members a chance of hearing the "Voice of the ILR.S.," and on October 21 the first transmission of a regular schedtie was commenced by G-2YH, the official stntion of the society, between 11 and 11.30 am., G.M.T. -Announcements during these transmissions are made in Wnylish and French, while slow Morse is transmitted for the benefit of those learning the code. During. several of these transmissions I have personally spoken to members over 2YH. Of the two transmitters 2YH aud 2LZ, the latter will be heard in New Zealand more regularly, for it employs a -power of 250 watts. It will normally transmit jin ¢cw., but when conditions are satisfactory, transmissions will be made in ’phone and arrangements have been made for me to send personal greetings to fellow enthusiasts in New Zealand and other parts of the world. A third station, G-6BQ, Gravesend, Kent, will shortly join in the transmissions to New Zealand. At the moment the schedule is not to hand, but transmissions will commence before the end of October. Reports Desired. Although only a comparative number of readers will be able to carry out two-way tests with our stations in England, they can all enjoy the thrill of hearing fellow members on the other side of the world. And your reports are not merely welcome, but desired, as we wish to find out how our transmissions are being heard. And we promise you that you will receiv? our station cards in exchange. If you send your reports of reception to ZL3HD, in Christchurch, he will forward them, by radio, to England. This will not merely enable us to receive ‘at the earliest opportunity, details of how we are being received, but will also enable you to get your cards back soon. . A few details of 2YH, the © official station of the I.R.S., will interest readers, particularly to those receiving his trans-world transmissions, 2YH is crystal controlled on all frequencies and the crystal frequency is 7157 k.c., plus and minus .1 per cent. The oscillator always works on that frequency, and is followed by a neutralised buffer amplifier, which, in turn, is followed by the final power amplifier, also neutralised. A fre.queney doubler igs used for operation on 14,814 kc. The HT is obtained from the a.c, mains. Various systems are employed for modulation, but at present choke modulation of the final. amplifier is used. The aerial is half wave on 7157 k.c.. and full wave on 14,314 k.c. The operator of 2YH is an ardent supporter of the I.R.8., and his name is Mr. Ernest Hobden. He will be pleased’ to receive reports, either by radio, as just described, or by letter. His address is 10 Detiecroft Gardens, Grays, Hssex, and he will QSL all. reports,