8-B-17: Timer - Trigger - Synchronizer Circuits
8-17B1:
What RADAR circuit determines the pulse repetition rate (PRR)?
Timer (synchronizer circuit).
Discriminator.
Artificial transmission line.
Pulse-rate-indicator circuit.
8-17B2:
The triggering section is also known as the:
Synchronizer.
PFN.
Timer circuit.
Blocking oscillator.
8-17B3:
Operation of any RADAR system begins in the:
Triggering section.
Magnetron.
AFC.
PFN.
8-17B4:
The timer circuit:
All of the above
Determines the pulse repetition rate (PRR).
Determines range markers.
Provides blanking and unblanking signals for the CRT.
8-17B5:
Pulse RADARs require precise timing for their operation. Which type circuit below might best be used to provide these accurate timing pulses?
Single-swing blocking oscillator.
AFC controlled sinewave oscillator.
Non-symmetrical astable multivibrator.
Triggered flip-flop type multivibrator.
8-17B6:
Unblanking pulses are produced by the timer circuit. Where are they sent?
CRT.
IF amplifiers.
Mixer.
Discriminator.
|
Color key:
|
|
● = Unseen
|
|
● = Weak
|
|
● = Review
|
|
● = Learned
|
|
● = Incorrect answer
|
