Digital Communication - Introduction

RF circuits and audio amplifiers are

• Analog in nature

• Digital in nature

• Can be either analog or digital

Fidelity of Digital communication is specified in terms of

• Bit error rate

• Signal to noise ratio

• Noise figure

Shannon's ground breaking paper on Information theory was published in the year

• 1948

• 1947

• 1940

Uncertainty and Information are

• Directly related

• Indirectly related

• Not related

Amount of information and probability of occurrence of a event are

• Inversely proportional

• Directly proportional

• Not related