VK7 Centenary Documents

VIH

VK7RO MaterialTextHISTORICSPARK

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VK7OTC is on the site of coast radio station, VIH,  which 
         opened  in  1912  in  time to  communicate with  Mawson's 
         expedition to Macquarie Island and Antarctica. VIH closed 
         in 1992. The original 5 KW spark transmitter was replaced 
         by a 2 KW valve in  1926. VIH  was operated  by the  PMG, 
         RAN,  AWA  and  finally  the Overseas  Telecommunications 
         Commission, hence our call sign VK7OTC.


         VK7OTC  is  on the  site formerly  used by  coastal radio 
         station VIH, which opened in 1912 in time  to communicate 
         with  Mawson's   expedition  to   Macquarie  Island   and 
         Antarctica. VIH closed in 1992. Originally  equipped with 
         a 5 KW spark transmitter and crystal receiver, in 1924 it 
         was using a De Forest ultra-audion receiver and  in 1926, 
         a 2 KW valve transmitter. VIH  was operated  by the  PMG, 
         RAN, AWA and finally  by the  Overseas Telecommunications 
         Commission as commemorated by our call sign VK7OTC.