Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 130
Four general types of aerials are in use: (1) The vertical or fan aerial; (2) The umbrella aerial; (3). The inverted L flat top aerial; (4) The T aerial. (a). The vertical aerial shown in Fig. 139 consists of a fan or harp of copper or silicon bronze wires held vertically into space by a wooden… … Fig. 141—Inverted Flat Top Aerial. where they enter the station house and are connected to the apparatus. The freeend of the vertical aerial must be well insulated to prevent direct leakage to thesupporting hal)ards or stays, and at the lower end the wires must be stayed totake the strain off the…
Telegraph, Wireless
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
