1A baseband signal with 4 kHz bandwidth is sampled at 1.2 times of its Nyquist sampling rate.
Calculate:
A. The sampling rate at which this signal is sample.
B. The guard frequency band between the repeats of the spectrum.
2.32 signals all with the same bandwidth of 4 kHz are multiplexed after sampling at their Nyquist rate. Calculate the sample rate on the analog communication link.