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1 Author(s)
Mullin, L. R. ; Marconi's Wireless Telegraph Company, Ltd., Chelmsford, Essex, England

This paper traces briefly the history of the development of the AD.7092 series of automatic radio direction finders and describes the special features of the AD.7092C which was designed to suit the requirements of North American operators. Novel features include an electrical remote control system and a tuned remote sense amplifier which permits the use of long feeders using small sense antennas. The suppressed loop antenna and method of error compensation are described and the trend of future ADF developments in Great Britain is indicated.

Published in:

Aeronautical and Navigational Electronics, IRE Transactions on  (Volume:ANE-2 ,  Issue: 4 )