Chapter 41) What two types of modulation are included in the term angle modulation?
21) An FM signal has a deviation of 10 kHz and a modulating frequency of 2 kHz. Calculate the modulation index.
26) A 10 kHz signal modulates a 500 MHz carrier, with a modulation index of 2. What are the maximum and minimum values for the instantaneous frequency of the modulation signal?
28) A PM signal has a modulation index of 2, with a modulating signal that has an amplitude of 100 mV and a frequency of 4 kHz. What would be the effect on the modulation index of:(a) changing the frequency to 5 kHz?
(b) changing the voltage to 200 mV?