Wireless Wanderings

Radio Record, Volume III, Issue 17, 8 November 1929, Page 8

Wireless Wanderings

HE latest radio "stunt" in America is a broadcast description of the sensations experienced by a parachutist while actually making a descent. A. "chin-strap" microphone is fastened in front of his mouth, while strapped around his waist is what is believed to be the smallest transmitter ever made. This has a range of ten miles, and weighs only 24lb., with the microphone included. four batteries, the equipment ‘consists of a modulating and oscillating circuit, while a switch is fitted to enable the transmitter to be turned on or off at the will of the operator. The broadcast is picked up and relayed by a powerful ground station, and it is hoped that the ‘person describing his feelings on the occasion has strong self-control. Otherwise, should his. "umbrella" fail to open, his remarks anent aeronautics in general, and parachutes in particular, would probably prove too illuminating for the everyday valve filament. ; AN interesting ‘experiment in "sixfold" reception is being carried out at present by the B.B.O. in connection with trans-Atlantic programmes. One station is situated in Essex and another in Kent, the two' being linked together by means of land-lines, DHaeh station tunes. in to Ameriea on three different wavelengths, the idea being; that if fading affects one wayélength, both stations receive the transmission on the others. The programmes are rebroadcast, and thus the listener may réceive the same station on six different wavelengths, which vary according to reception conditions,-