I16 - Simple block diagram of receivers

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What type of receiver is this block diagram of?
1. A TRF
2. A superhet
3. A crystal diode
4. An double superhet
What type of receiver is this?
1. Crystal diode
2. TRF
3. Superhet
4. Double superhet
In a superhet receiver which block produces most gain?
1. RF amplifier
2. Mixer
3. IF amplifier
4. Audio amplifier
In a superhet receiver which of these blocks is responsible for selection of the required frequency?
1. The mixer
2. The audio amplifier
3. The BFO
4. The bandpass filters
At which points could the input for the AGC be taken?
1. The output from the IF amplifier
2. The output from the local oscillator
3. The output from the BFO
4. The output from the RF amplifier

I16 - Simple block diagram of receivers

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