Scotland ' Yard ' s new radio station nears completion , will spread wireless net over London . Scotland Yard ' s new radio station , which will enable the police to place a wireless net over a radius of 40 to 50 miles of London , is nearing completion at Grove Park , Denmark Hill . Machines which record morse code in print , a voice frequency panel connected with Scotland Yard by landline , and short wave radio rceivers , have been installed . The ne station is also to play a leading part in the Home Office scheme for regional police radio stations . Photo shows , fixing the undulator , which records morse code in print , at the the radio station . 27 April 1936
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