Radio in the Aeroplane
M OST people know that some aircraft are equipped with wireless but few realise the extent to which it is sometimes employed. You may be surprised to hear that in some instances 9 sets are installed though usually one or two will suffice. The principal set is for the transmission and reception of wireless messages by telegraphy or telephony, though because of the wide range to be covered the duties are sometimes spread over 2 or 3 different sets. In a few installations a set is provided for the facsimilie reproduction of meteorological maps. All the remaining sets are for navigational aids. A common feature is a set connected to a loop aerial enclosed in a metal ring on the top of the fuselage. By rotating the loop the direction of any known radio station may be determined. By finding the directions of two or more .stations a navigator is able to fix his position.-(Winter Course Talk, " Electricity in the Aeroplane," by Cecil Dawson, 1YA, April 3.)
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New Zealand Listener, Volume 4, Issue 96, 24 April 1941, Page 5
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171Radio in the Aeroplane New Zealand Listener, Volume 4, Issue 96, 24 April 1941, Page 5
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