Radio Round the World

Radio Record, Volume IV, Issue 10, 19 September 1930, Unnumbered Page

Radio Round the World

DITORS of the future will receive their news, advertisements and pictures entirely by wireless, according to the predictions of an eminent American journalist. He also prophesied that subscribers would receive their journals by wireless, the pages being reproduced on sensitised paper. m = Oe A COMMERCIAL radio telephone call made recently from New York to Germany by a German business man occupied thirty-two minutes and cost over £100! Certainly a quick method of spending money. 2 Ba bs] WHILE performing her recent trials the new White Star liner, the Britannic, maintained constant communication with her builders and owners by means of a 43 k.w. telephone transmitter. 2 2 9S D®. Hh. ALEXANDERSON, a prominent American electrical engineer, is of the opinion that television, operating in conjunction with wireless, will some day enable an unoccupied bombing aeroplane to be safely steered until it is directly above its target. = us mt PROGRAMMES from Hngland are now regularly retransmitted with suecess over certain American station networks. In less than six months the novelty of trans-Atlantic broadcasts has become a regular item on Ameriean weekly programmes. bd % 2 (THE Canadian Government has established an inter-communicating chain of four direction-finding wireJess transmitters on the Hudson Bay shipping route. These stations are fully manned day and night and broadeast wireless bearings, forecasts and navigation warnings to ships. gm * ba] AN English periodical, in an article comparing the mode of holidaymaking to-day with that of 20 years ago, points out that the quiet serenity of the countryside is no more. "Hyerywhere one hears the jarring strains of noiscsome wireless. HEverywhere branches, torn down to provide temporary aerials, strew the tidy Janes and woods!" e fe) e A REORGANISATION scheme for Norwegian broadcasting, now under consideration, involves an expenditure of £250,000 for transmitters and other equipment. s z a At the Second World Power Conference, assembled recently at Berlin, a sympathetic attitude was adopted toward the listener who is troubled with man-made static. After the question of broadcasting had received a generous time allowance for discussion, many delegates agreed that elec. trical engineers should in future cater for the needs of broadcasting interests. ’

MANY of the Huropean broadcasting stations fill a large proportion of their progremme time with relayed excerpts from the transmissions of their neighbours. Ea] Ed s As a step toward extension of ‘its trans-oceanic service into the Pacific, the Atlantic Telegraph and Telephone Company of New York has applied for a permit to erect a_ shortwave radio telephone station in California. The first regular service will be to the island of Oahu, in the Hawaiian group. me Dd L" HH Canadian National Railways recéitly erected an 80ft. tower for broadcasting a running commentary on the arrival of the airship R100 in Montreal. The tower was erected a short distance from the mooring mast to avoid interference from the vibration of the airship’s engines. For the purposes of the broadeast the sixteen stations of the company’s wireless system were linked for simultaneous transmission. % % a Hip first "beam" radio telephone to be installed on a ship has recently been added to the equipment of the liner Homeric. During a recent trip across the Atlantic the vessel’s radio operators maintained continuous come mercial communication with both sides of the Atlantic. The set in- stalled on the Homeric is an adaptas tion of Marconi’s "beam" transmitter, by means of which energy is conserve ed and directed in a selected direction. 3 R bd FRENCH amateur recently sailed from Casablanea, a small seaport on the coast of France, in a 19ft. cutter in which he hopes to reach New York. His tiny vessel is equipped with a short-wave transmitter which derives its power from two 90 volt dry batteries, while a 20ft. wire stretched vertically to the top of the mast constitutes the aerial. Despije the tossing of the boat and the smailness of the radio installation, Paris amateurs have reported the reception of strong and regular signals. & s eS PHD American Navy is equipped with special apparatus for the use of "infra-red" rays, which are claimed to be efficient secret transmitters. They are invisible to the naked eye, and, unlike radio waves, travel in a narrow path. These rays are utilised in an ingenious manner to guard New York harbour. Two parallel beams extend across the mouth, a few feet above the water. As a ship en-' ters or leaves, the rays are broken, giving a signal to the receiver. The order in which they break shows whether the ship is entering or leaving, while the time elapsing between tha break of the first and second beams indicates the ship’s speed.