Receiver Principles Flashcards
1
Q
3 main properties of a super heterodyne receiver
A
High gain
High SNR
Wide Bandwidth
2
Q
What is the role of the AFC in a superheterodyne receiver
A
Ensures constant IF even if transmitter drifts off in frequency
3
Q
What is the role of the IF amp
A
Very large gain and wide bandwidth
4
Q
What is the role of the local oscillator in a superheterodyne receiver
A
Provides a continuous low amplitude microwave frequency
5
Q
What is the role of the video detector in a superheterodyne receiver
A
Demodulates the bipolar pulse to recover original pulse shape
6
Q
What is the role of the RF amp in a superheterodyne receiver
A
Provide small amount of gain and lower noise factor
