Q3. A narrowband FM signal has a carrier frequeney of 110 kHz and a deviation ratio of 0.04. The modulation bandwidth (signal bandwidth) is 10 kHz. This signal is used to generate a wideband FM signal with a deviation ratio of 18 and a carrier frequency of 100 MHz. a) Give the required value of frequency multiplication, n. b) Give two frequencies for the mixer to give the desired carrier. c) Define the required bandpass filter (center frequency and bandwidth).

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Q3. A narrowband FM signal has a carrier frequeney of 110 kHz and a deviation ratio of
0.04. The modulation bandwidth (signal bandwidth) is 10 kHz. This signal is used to
generate a wideband FM signal with a deviation ratio of 18 and a carrier frequency of 100
MHz.
a) Give the required value of frequency multiplication, n.
b) Give two frequencies for the mixer to give the desired carrier.
c) Define the required bandpass filter (center frequeney and bandwidth).
Transcribed Image Text:Q3. A narrowband FM signal has a carrier frequeney of 110 kHz and a deviation ratio of 0.04. The modulation bandwidth (signal bandwidth) is 10 kHz. This signal is used to generate a wideband FM signal with a deviation ratio of 18 and a carrier frequency of 100 MHz. a) Give the required value of frequency multiplication, n. b) Give two frequencies for the mixer to give the desired carrier. c) Define the required bandpass filter (center frequeney and bandwidth).
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