THE AUTOMATIC WIRELESS CALL.

Pukekohe & Waiuku Times, Volume 9, Issue 559, 20 August 1920, Page 2 (Supplement)

THE AUTOMATIC WIRELESS CALL.

One of the reasons why wireless telegraphy has not been made compulsory on smaller vessels is that its value has depended upon an operator being continuously on duty. Important calls might come at any moment, night or day, and unless there was an operator always with his ear to the telephone, the value of the installation would be enormously reduced. This drawback has been removed by a recent invention by a British wireless telegraph expert. It is described as an "automatic call device" which rings a boll when messages of a certain kind, such as the ship's special call signals or the S.O.S. signal for help, are being sent out. When this device is installed, a ship does not need relays of operators continually in the wireless cabin. It is enough to train two or three officers in the use of the wireless telegraph instrument. The bell calls them when they are likely to be required—as in the case of the ordinary telephone.