(G)Element 3-53 Oscillators and Modulators Flashcards
1
Q
What is the modulation index in an FM phone signal having a maximum frequency deviation of 3000 Hz on either side of the carrier frequency when the modulating frequency is 1,000 Hz?
A
3
2
Q
What is the modulation index of a FM phone transmitter producing a maximum carrier deviation of 6 kHz modulating frequency?
A
3
3
Q
What is the total bandwidth of a FM phone transmision having a 5 kHz deviation and a 3 kHz modulating frequency?
A
16 kHz
4
Q
How does the modulation index of a phase modulated emission vary with RF carrier frequency?
A
it does not depend on the RF carrier frequency
5
Q
How can single sidedband phone signal be generated?
A
using a balanced modulator followed by a filter
6
Q
What is a balanced modulator?
A
produces a double sideband, suppressed carrier signal
7
Q
A
