7 pages matching dummy antenna in this book
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a-m broadcast a-m receiver a-m signal adjusted alignment ampliﬁer amplitude amplitude modulation antenna audio broadcast band capacitance carrier center frequency Chapter characteristic impedance checked coil connected control voltage coupling crystal calibrator crystal oscillator desired detector device dummy antenna erator ﬁgure ﬁrst ﬁxed frequency range frequency sweep fundamental frequency ground harmonic heterodyne hot lead impedance impedance bridge indication inductance inductor input intermediate frequency marker frequency marker pip marker signal method microvolts modulation signal obtained ohms operation oscillator frequency oscilloscope beam output jack output lead output meter output voltage phase plate produce quency r-f oscillator r-f output r-f signal r-f voltage reactance tube resistors resonant frequency response curve return trace set-up shielded shown in Fig speciﬁed standing waves step attenuator sweep signal sweep width swept oscillator switch terminating tuned circuit tv receiver typical variable capacitor variation vibrating capacitor voltage applied wire