Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 98
al wire, but it may serveto make the oscillating properties of a vertical conductor more or less self-evident. An open circuit oscillator in radio-telegraphy is known as,an aerial or anantenna, and it is said to be a radiator of electromagnetic waves. In commercialpractice, aerials may have 2, 4 or… … Fig. 98—Electrostatic Field About Aerial Previous toSpark Discharge. Fig. 99—Detached Loops of Electrostatic Strain. The complete process of radiation of electromagnetic waves is a complex subject whichwill only be treated in a popular manner here. The vertical wire of Fig. 98 and the earthmay be…
Telegraph, Wireless
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