Radio Receivers
Indicate the false statement. The superheterodyne receiver replaced the TRF receiver because the latter suffered from

Instability
Inadequate selectivity at high frequencies
Gain variation over the frequency coverage range
Insufficient gain and sensitivity

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Radio Receivers
In a radio receiver with simple AGC

The audio stage gain is normally controlled by the AGC
The faster the AGC time constant the more accurate the output
An increase in signal strength produces more AGC
The highest AGC voltage is produced

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