(b) Figure 12 shows the block diagram of a simple radio transmitter. transmitting аerial microphone Audio frequency amplifier sound modulator Radio frequency amplifier oscillator or radio frequency generator Figure 12 (i) State the function of the microphone and the modulator. (ii) Briefly explain the difference between amplitude modulation (A.M.) and frequency modulation (F.M.). (iii) State one advantage that each of F.M. and A.M. has over the other. on

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(i), (ii) & (iii)

(b) Figure 12 shows the block diagram of a 'simple radio transmitter.
transmitting
aerial
microphone
Audio frequency
amplifier
sound
Radio frequency
amplifier
modulator
oscillator or
radio frequency
generator
Figure 12
(i) State the function of the microphone and the modulator.
(ii) Briefly explain the difference between amplitude modulation (A.M.) and frequency
modulation (F.M.).
(iii) State one advantage that each of F.M. and A.M. has over the other.
Transcribed Image Text:(b) Figure 12 shows the block diagram of a 'simple radio transmitter. transmitting aerial microphone Audio frequency amplifier sound Radio frequency amplifier modulator oscillator or radio frequency generator Figure 12 (i) State the function of the microphone and the modulator. (ii) Briefly explain the difference between amplitude modulation (A.M.) and frequency modulation (F.M.). (iii) State one advantage that each of F.M. and A.M. has over the other.
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