Question

Q1: Consider the modulating signal m(t) = 10 sin(2??10^10t), that is used to modulate a carrier frequency of 25MHz. 1. Find the bandwidth for 98% for phase modulation and frequency modulation using modulation index, ??p = 10 and ??f = 10. 2. Repeat(1) when modulating frequency is doubled. 3. Repeat (2) when amplitude of the modulating signal is halved Q2: Explain the concept of instantaneous frequency, frequency deviation, modulation index, and bandwidth in an FM system.

          Q1:
Consider the modulating signal m(t) = 10 sin(2??10^10t), that is
used to modulate a carrier frequency of 25MHz.
1. Find the bandwidth for 98% for phase modulation and
frequency modulation using modulation index, ??p = 10 and
??f = 10.
2. Repeat(1) when modulating frequency is doubled.
3. Repeat (2) when amplitude of the modulating signal is halved
Q2:
Explain the concept of instantaneous frequency, frequency
deviation, modulation index, and bandwidth in an FM system.

Q1:
Consider the modulating signal m(t) = 10 sin(2??10^10t), that is
used to modulate a carrier frequency of 25MHz.
1. Find the bandwidth for 98% for phase modulation and
frequency modulation using modulation index, ??p = 10 and
??f = 10.
2. Repeat(1) when modulating frequency is doubled.
3. Repeat (2) when amplitude of the modulating signal is halved
Q2:
Explain the concept of instantaneous frequency, frequency
deviation, modulation index, and bandwidth in an FM system.

Added by Eric B.

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