Title :
Improvements in Piloting Cable Receiving Apparatus
Author_Institution :
Expert Radio Aid, Navy Department, Washington, D.C.
Abstract :
The further development of an aural receiver for the piloting cable system of guiding ships into harbors is described. In particular, the choice of a detecting coil of the most desirable number of turns, the proper choice of transformer input impedance and step-up ratio, and the use of audio frequency tuning of the coil circuit are discussed. The design of the latest coil, receiver, and amplifier is given.
Keywords :
Cables; Circuit testing; Coils; Dielectrics; Foot; Frequency; Laboratories; Resonance; Underwater vehicles; Writing;
Journal_Title :
Radio Engineers, Proceedings of the Institute of
DOI :
10.1109/JRPROC.1922.219789
