7.2.4 A certain three-channel PAM system is shown in Fig. P-7.2.4;

f_(1)(t)

is band-limited to\

7kHz

and

f_(2)(t),f_(3)(t)

are each band-limited to

3kHz

.\ a) Determine the minimum and maximum values of the commutator clock rate such\ that all three signals can be reconstructed at a receiver without distortion under ideal\ conditions.\ b) Sketch a receiver block diagram for this system.\ Figure P-7.2.4.

7.2.4 A certain three-channel PAM system is shown in Fig. P-7.2.4; f1(t) is band-limited to 7kHz and f2(t),f3(t) are each band-limited to 3kHz. a) Determine the minimum and maximum values of the commutator clock rate such that all three signals can be reconstructed at a receiver without distortion under ideal conditions. b) Sketch a receiver block diagram for this system. Figure P-7.2.4