Extra exam question E7F10

WhyThe sample rate of a receiver's analog-to-digital conversion determines the maximum receive bandwidth of a direct-sampling software defined radio. In a direct-sampling SDR, the analog-to-digital converter's sample rate directly sets the maximum bandwidth the receiver can capture at once, since the Nyquist limit tied to that sample rate determines how wide a slice of spectrum can be digitized without aliasing, answer A. Sample width in bits affects dynamic range and resolution rather than bandwidth, and integral and differential non-linearity are converter accuracy specifications, not what sets the receive bandwidth.