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Subelement D

Display & Control Systems

Section 31

Timing Circuits

Timing circuits are used to provide what function?

  • Correct Answer
    Develop synchronizing pulses for the transmitter system.
  • Synchronize the antenna and display system.
  • Adjust the sea return.
  • Control the North Up presentation.

Timing circuits —— synchronized.

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The circuit that develops timing signals is called the:

  • Resolver.
  • Correct Answer
    Synchronizer.
  • Pulse forming network.
  • Video amplifier.

A synchronizer is a circuit used to align or synchronize different parts of a digital system by ensuring that data transfers occur at appropriate times. It helps manage the timing and coordination of various components within the system, allowing them to work together seamlessly.

Mnemonic: "SYNC - Systematically Yielding Necessary Coordination."

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Which of the following functions is not affected by the timing circuit?

  • Correct Answer
    Resolver output.
  • Pulse repetition frequency.
  • Sweep drive.
  • Modulation.

Which of the following functions is not affected by the timing circuit?

Resolver output.

A timing circuit is responsible for generating and controlling various timing signals in electronic systems. It ensures precise synchronization and coordination of different components. The timing circuit affects the timing of events but does not directly influence the "Resolver output."

A resolver is a type of rotary electrical transformer used to measure angular position. It converts an input mechanical angle into an electrical signal. The resolver output is dependent on the physical rotation of the input shaft and is not directly related to the timing circuit's operation.

Mnemonic: "Timing Ticks All But Resolver"

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The synchronizer primarily affects the following circuit or function:

  • Mixer.
  • Receiver.
  • Correct Answer
    Modulator.
  • I.F. Amplifier.

The synchronizer tells the modulator when to tell the Magnetron to transmit a RADAR pulse, thus Answer C. is the right answer.

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The output from the synchronizer usually consists of a:

  • Sine wave.
  • Correct Answer
    Pulse or square wave.
  • Triangle wave.
  • None of the above.

The pulse IS a square wave!

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The sweep drive is initiated by what circuit?

  • Resolver.
  • Sweep amplifier.
  • Video amplifier.
  • Correct Answer
    Synchronizer.

All time-dependent actions in a RADAR are controlled (timed) by the Synchronizer, thus Answer D. is the right answer.

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