T 7.2.1.3 Amplitude Modulation
T 7.2.1.3 Amplitude Modulation
T 7.2.1.3 Amplitude Modulation
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TPS <strong>7.2.1.3</strong><br />
Double Sideband AM<br />
Repeat the experiment for the message signal of<br />
f 1 = approx. 20 kHz. Sketch the result in Diagram<br />
5.4-3.<br />
Diagram 5.4-3:<br />
Additive superimposing of 2 sinusoidal signals with equal<br />
amplitudes and approx. equal frequencies<br />
Depict the spectrum in Diagram 5.4-4.<br />
Table 5.4-2: Spectrum of a beat<br />
Signal parameter<br />
Analyzer settings<br />
A 2 : V V 1 :<br />
f 2 : kHz b : Hz<br />
f r : kHz<br />
A 1 : V T : s<br />
f 1 : kHz SPAN : kHz<br />
Measurements<br />
Theory<br />
n<br />
f<br />
KHz<br />
Name<br />
S( n)<br />
V2<br />
S(n)<br />
V<br />
S(n)<br />
V<br />
Diagram 5.4-4: Spectrum of a beat<br />
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