Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 290
ions 0-1, indi-cated on the upper line, are those in-coming at a given station (without thelocal arc generator in operation) whilethose on the second line 0-2 corres-pond to the frequency of the arc gen-erator and are of a lower order offrequency than the incoming oscilla-tions. The third curve 0-3… … RECTlflEDBEAT CURRENT Aa^a/ PERIODICTELEPHONE CURRENT Fig. 292—^Turves Showing the Functioning of the HeterodyneReceiver. groups of oscillations oppose and max- 280 PRACTICAL WIRELESS TELEGRAPHY. imum value when they assist or are in phase, and the frequency of the beat current is thenumerical…
Telegraph, Wireless
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