WONDERFUL RADIO.

Gisborne Times, Volume LXVIII, Issue 10733, 2 November 1928, Page 3

WONDERFUL RADIO.

INTERESTING AMATEUR TESTS

AMERICA AND AUSTRALIA PROPOSED TRANSMISSION ON TEN METRE WAVE LENGTH United Press Asbh. by E 6 Tel. Copyright •Australian Press Association > NEW YORK, Oct, 31. .V message from Hartford. Connecticut, states that radio amateurs in Australia and the United States will participate in an interesting experiment at 2 o’clock on the morning of November ], eastern standard time, when tests of transmission, between the two continents will be made on a 10 metre wave length. The trials are sponsored by the American Radio Relay League, and will last for one week. The principal difficulty on the 10-metre wave length is in the angle of the beam, and Mr E. C. Crossett, of Chicago, has erected a new transmitter at his summer homo at Wiano. Massachusetts. from which the tests will be made.

instead of the angle of the beam being varied horizontally, the beam is variable on a vertical planp. The direction is on a great circle to Australia, and it is fixed vertically so as to shoot tho beam off on a long tangent, practically parallel to the surface of the. earth, or to any angle up to vertical. The angle of the beam will be varied constantly in an attempt to find an angle at which communications may he established with Australia on a regular basis. SUCCESSFUL ’PHONE TFISTS. SYDNEY TALKS TO JAVA AND UNITED STATES United Press Assn, by El. Tel. Oopyrigbi (Anßtraliao Press Assn.) SYDNEY', Nov. 1. Successful wireless telephony tests were carried out- last night, Sydney people conversing with Java and Schenectady. Reception was clear and the speakers exchanged items of news as if talking from one town to another nearbv.

GISBORNE 'EXPERI.AfENTS

TWO-WAY COMMUNICATION SUCGESFUL

Remarkable advances in short wave radio reception and transmission aro foreshadowed as a result of tho experiments to be conducted by tho American Radio Relay League on a 10-metre wave length. For sCine timo both Air T. O’Meara and Air R. J. Patty, the Gisborne operators, have been experimenting on this wave length with verv satisfactory results. Air O’Meara’s signals on ten metres were picked up about a week ago by the Californian amateur station, 0 UR, the signals being in code and were picked up and decoded by tho American and cheeked. The first American station on 10 metres was not heard until two/days ago,' both Gisborne operators being successful iiC-reeeiving the signals which were transmitted by OXV, Paulo Alto, California, operated by tho Federal Teograph Company. Although not simultaneously, two-way communication on this wave length has therefore, lieen established. Air O’Afeara has, however, maintained regular communication - both ways noth an amateur in Adelaide, a distance of over 2000 miles, and a record for this'quarter of tho globe on such a low wave-length, A schedule with tho Adelaide operator is being maintained daily,' with outstanding success, a remarkable improvement having already been effected. 'Reports of his experiments ' have been forwarded by Mr O’Meara * to the Radio Relay League of America, and have been rreeived with great interest. The Gisborno amateur, however, has directed his tests mainly to different times of tho day, it being his opinion that success depends more upon this than upon tho angle of the Imam, to which reference is made in the cable message. Air O’Alenra’s signals, for instance, were received in California at about 7.20 a.m., but at that time he was not able to pick up the American station which, however, came in quite clearly between I and 1.30 o’clock in the afternoon. It is this difference in times that it is sought to overcome, and Air O’Aleara is confident that almost a I any tnme it will be possible to announce that all obstacles have boon overcome and that regular two-way communication across the Pacific on 10- metres is no longer a matter ot experiment. „ . ....