Radio Receivers
A low ratio of the ac to the dc load impedance of a diode detector results in

Negative-peak clipping
Poor AGC operation
Diagonal clipping
Poor AF response

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Radio Receivers
In a broadcast superheterodyne receiver, the

Local oscillator frequency is normally double the IF
Mixer input must be tuned to the signal frequency
RF amplifier normally works at 455 kHz above the carrier frequency
Local oscillator operates below the signal frequency

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