Larger bandwidth is available when operating frequency bands are higher.

Modulation channel accepts analog signal as input and delivers another version of modulated signal as analog waveform.

Ground wave communication can take place in both low frequency and medium frequency bands.

The main features of a receiver which increases its complexity are synchronization of carrier, phase, and timing and multiple parallel receiver chain.

When information is transmitted through large distance it must be amplified. Modulation channel consists of an amplifier and other signal processing units.

A signal can be recovered from its sampled version by using an ideal low pass filter.

A matched filter can also be used as a least squares estimator.

Some of the conditions which must be satisfied in a digital communication system are high data rate, high fidelity, low bandwidth, low transmit power and low transmitter and receiver complexity.

Interpolator corrects the sampling time problem using discrete time processing.

The equivalent temperature is the function of the receiver design and it must be always kept low.