(GROL) General Radiotelephone Operator License Practice Test
GROL - General Radiotelephone Operator License Receivers and Transmitters Questions and Answers
In a superheterodyne receiver, what is the primary function of the mixer stage?
Select your answer
A
To amplify the weak incoming RF signal before any other processing.
B
To demodulate the audio information from the intermediate frequency.
C
To combine the incoming RF signal with the local oscillator signal to produce a fixed intermediate frequency (IF).
D
To provide the main filtering and selectivity for adjacent channel rejection.
Hint
