signal is required?
Basic modulation method
Harmonic generation method
7. A common
frequency to a
8. Assume that the frequency of the input generator in the circuit shown in
figure 3 of IT 51048 is changed from 4 kHz to 3 kHz. The harmonic filters would
3, 4, 6, and 8 kHz.
3, 6, 9, and 12 kHz.
6, 9, 12, and 15 kHz.
6, 10, 14, and 18 kHz.
One reason for
output signal that is
free from noise.
rich in odd harmonics.
rich in even harmonics.
10. The typical synthesizing circuit that uses the heterodyne method is divided
in three sections. These three sections are the
1st mixer, 2d mixer, and 400-kHz amplifier.
harmonic generating section, filter section, and output section.
11. The output signal from the carrier oscillator is used in two stages of the
second mixer and tuned amplifier.