# Resonance and its applications

### Explanation of question 14

The parallel tuned circuit in Fig. 10.5 will

1. reject an interfering signal
2. accept a required signal
3. bypass an interfering signal
4. lower the antenna impedance

The answer is :- 1 A parallel tuned circuit will have a high impedance when resonant. Thus when placed in series with the antenna as above, it will attenuate it's frequency of resonance. The operator would use the variable capacitor to match the resonant frequency to that of an unwanted (interfering) signal. In this configuration, the tuned circuit is known as a "rejecter"

BACK

page (tq1014ex)
Some material Copyright John Bowyer G4KGS.
Click here for important Copyright information
Web Space provided by Hostroute.com Ltd
Contact details