Q.3: a) A block diagram of an indirect (Armstrong) FM transmitter is shown below. Compute the maximum frequency deviation Af, of the output of the FM transmitter and the carrier frequency fc. if fer 200 KHz, fio-10.8 MHz, Af,-25 Hz, n-64, n-48. xe(t) fer. Afi Frequency fe multiplier fes Frequency multiplier m(t) NBFM fe. Afe fio b) We need to send data 3 bits at a time at a bit rate of 3 Mbps of FSK system. The carrier frequency is 10 MHz. Calculate the number of levels (different frequencies), the baud rate, and the bandwidth. Draw the bandwidth.

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Q.3: a) A block diagram of an indirect (Armstrong) FM transmitter is shown below. Compute the
maximum frequency deviation Af, of the output of the FM transmitter and the carrier frequency fc.
if fer 200 KHz, fio-10.8 MHz, Af,-25 Hz, n-64, n-48.
xe(t)
fer. Afi
Frequency fe
multiplier
fes
Frequency
multiplier
m(t)
NBFM
fe. Afe
fio
b) We need to send data 3 bits at a time at a bit rate of 3 Mbps of FSK system. The carrier
frequency is 10 MHz. Calculate the number of levels (different frequencies), the baud rate, and the
bandwidth. Draw the bandwidth.
Transcribed Image Text:Q.3: a) A block diagram of an indirect (Armstrong) FM transmitter is shown below. Compute the maximum frequency deviation Af, of the output of the FM transmitter and the carrier frequency fc. if fer 200 KHz, fio-10.8 MHz, Af,-25 Hz, n-64, n-48. xe(t) fer. Afi Frequency fe multiplier fes Frequency multiplier m(t) NBFM fe. Afe fio b) We need to send data 3 bits at a time at a bit rate of 3 Mbps of FSK system. The carrier frequency is 10 MHz. Calculate the number of levels (different frequencies), the baud rate, and the bandwidth. Draw the bandwidth.
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