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ASSIGNMENT 2
Textbook assignment: Chapter 2, “Radar Subsystems,” pages 2-1 through 2-51.
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2-1. Which of the following units of a radar
system determines timing for all units of
the radar?
1. Automatic tracker
2. Synchronizer
3. Transmitter
4. Receiver
2-2. Which of the following classifications
describes a radar system that uses a
master oscillator to produce timing
pulses?
1. Externally synchronized
2. Self-synchronized
3. Unsynchronized
4. Free-running
2-3. Which of the following oscillators may
be used as the master oscillator in a radar
system?
1. A stable multivibrator
2. Sine-wave oscillator
3. Blocking oscillator
4. Each of the above
2-4. Which of the following oscillators, used
in a synchronizer to provide timing
trigger pulses, does NOT require a pulse-
shaping circuit in its output?
1. Phase-shift oscillator
2. Square-wave oscillator
3. Sine-wave oscillator
4. Blocking oscillator
2-5. A radar system in which timing triggers
are determined by the pulse-repetition
rate of the modulator uses what type of
synchronization?
1. Self
2. External
3. Free-running
4. Stable blocked
2-6. Which of the following radar indicator
functions is/are controlled by gate pulses
from the synchronizer?
1. Sweep duration
2. Sweep initiation
3. Range-mark generator gating
4. All of the above
2-7. Indicator sweep voltage in a radar is
normally initiated at which of the
following times?
1. At the same time as the transmitter
trigger
2. Before the transmitter trigger
3. After the transmitter trigger
4. Each of the above
2-8. The flyback retrace of a radar system
indicator is prevented from appearing on
the cathode-ray tube by removing the
1. negative-intensity gate pulse applied
to the control grid
2. positive-intensity gate pulse applied
to the control grid
3. negative-intensity gate pulse applied
to the cathode
4. positive-intensity gate pulse applied
to the cathode
