This problem addresses the digitalization and transmission of a signal using pulse-coded modulation. The signal bandwidth is ( 4 MHz ). Specifications of the modulator include the following:

Sampling: at sample rate fₛ. with a guard band of 12.5% of the Nyquist rate Quantization: uniform quantization with 1024 levels
Encoding: Binary natural coding

(a) Determine the sampling rate fₛ.