Explain the following term in super heterodynes receiver. i. FEDELITY v. FREQUENCY RANGE – NABTEB QUESTION

i. FEDELITY: Is a measure of how well the output of a receiver reproduces the modulation of the signals received at its input.

ii. SELECTIVELY: Is a measure of the ability of a receiver to reject unwanted signals

iii. SENSITIVITY: The sensitivity of a receiver determines the weakness signal which will provide a specified output without excessive noise.

iv. POWER OUTPUT: Of a receiver is usually defined as the number of watts which the audio power amplifiers can deliver to the loudspeaker.

v. FREQUENCY RANGE: Is the band of frequencies which the receiver can cover.