POLICE RADIO

Hokitika Guardian, 19 October 1932, Page 6

POLICE RADIO

MOTOR-CYCLISTS HEAR MESSAGES AID TO CRIME DETECTION. LONDON, October 17. A remarkable demonstration of the immense value of radio in the pievention and detection of crime was given by Standard Telephones and Cables, Limited, in co-operation with the Bradford (England) city .police. Messages . were received without difficulty by men on roaring motor-c|yclos. Radio telephone .messages were sent out from Bradford Town Hall by a ‘“Standard” transmitter and were picked up by receivers carried by the motor-cycle policemen in all parts of the city. The demonstration was given during an inspection of the Bradford city police by the home office inspector. Major-General Sir L. W. Atcherley. AH present were enthusiastic about the results .of the demonstration, and it is likely that this radio telephone Broadcasting system will be adopted by a large number of police forces. The final model of the receiver will be made to fit, and will not inconvenience a passenger to the slightest degree. The antenna consists of a metal strut fixed on the rear of the machine, the strut being similar to the streamline typ e ' used on many aircraft. Interference from the engine .of the machine has been overcome by careful shielding. The, system, as demonstrated, enables ,machines anywhere with the Bradford City area (a radius of seven miles from the centre of the city) to receive messages clearly above electrical noise oaused by passing cars or trams. In some directions out of the city, a~ range, of at least sixteen miles is obtainable, while in other directions it i s limited fo seven miles by screening.