A POCKET WIRELESS
It is probable that the United States police will shortly be supplied with pocket wireless sets. The whole device is contained in a small box which fits the pocket and holds, among other things, a miniature valve and tiny batterias. The policeman will also be provided With a pair of collapsible car-phones, and the aerial will consist of a short wire stretching from the lapel of his coat. When an alarm is broadcast from headquarters a tiny lamp in the policeman’s jacket will light up; this is the signal to listen-in. He will take out his ear-phones and, provided he is not more than three and a half miles away, will be able to listen to any announcements from his station. It is to be hoped that programmes from the local broadcasting stations will not prove too distracting for him.
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https://paperspast.natlib.govt.nz/periodicals/RADREC19280413.2.46.9
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Radio Record, Volume I, Issue 39, 13 April 1928, Page 15
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143A POCKET WIRELESS Radio Record, Volume I, Issue 39, 13 April 1928, Page 15
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