Element 8: Ship Radar Techniques

effective 6/25/2009

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8-C-27: Interference Issues

8-27C1: One of the best methods of reducing noise in a RADAR receiver is?

Isolation.

Changing the frequency.

Replacing the resonant cavity.

Changing the IF strip.



8-27C2: The primary cause of noise in a RADAR receiver can be attributed to:

Thermal noise caused by RADAR receiver components.

Electrical causes.

Atmospheric changes.

Poor grounding.



8-27C3: Noise can appear on the LCD as:

Erratic video and sharp changes in intensity.

Black spots on the screen.

Changes in bearings.

None of the above.



8-27C4: RADAR interference on a communications receiver appears as:

A steady tone.

A varying tone.

Static.

A hissing tone.



8-27C5: In a RADAR receiver the most common types of interference are?

Weather and sea return.

Sea return and thermal.

Weather and electrical.

Jamming and electrical.



8-27C6: Noise can:

Mask small targets.

Mask larger targets.

Change bearings.

Increase RADAR transmitter interference.





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Element 8: Ship Radar Techniques
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