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The annunciator of a remote indicating compass system is used…

  • A
    to check the operation of the slaving loop.
  • B
    to set the `heading` pointer.
  • C
    to compensate for deviation.
  • D

    to set local magnetic variation.

Refer to figure.
ANNUNCIATOR INDICATORS
The annunciator circuit is located between the precession amplifier and the precession coil. A typical rate for the gyro to automatically align with the detector unit output is 2° per minute.

  • When the annunciator is flicking between the indications, either a dot and a cross or a plus and a minus, it shows the compass slaving is working correctly. When it indicates full deflection in one direction it shows that the gyro and compass systems are out of alignment.

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