Radio Fire Alarm

Radio Record, Volume IV, Issue 42, 1 May 1931, Page 7

Radio Fire Alarm

An Ingenious System "THe little village of Jutphaas, near Utrecht, faced with the problem of | giving fire alarms without disturbing the whole district, recently solved the difficulty by enlisting the aid of "wired wireless." Hach member of the fire brigade now has a radio receiving set, connected to a network to which the. alarm posts at various points throughout the district are attached. In case of fire, the person who wishes to give the alarm has only to pull down a lever handle on one of such alarm posts, and, on seeing the lamp-which otherwise is perpetually burning over the handle-go out, knows that his call is being passed on and received by the firemen, The signals received ‘by the. brigade are in Morse, and cut through: all other transmissions. The combination of the letters, of which.at. present. only five are necessary, shows where the fire is occurring, so that the majority of the members of the brigade need not report at the station, but cam go direct to where their services are needed. ; i