Element 8: Ship Radar Techniques

effective 6/25/2009

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8-A-03: Frequency and Wavelength

8-3A1: Frequencies generally used for marine RADAR are in the ___ part of the radio spectrum.

SHF

UHF

EHF

VHF



8-3A2: Practical RADAR operation requires the use of microwave frequencies so that:

Stronger target echoes will be produced.

Ground clutter interference will be minimized.

Interference to other communication systems will be eliminated.

Non-directional antennas can be used for both transmitting and receiving.



8-3A3: An S-band RADAR operates in which frequency band?

2 - 4 GHz.

1 - 2 GHz.

4 - 8 GHz.

8 - 12 GHz.



8-3A4: A RADAR operating at a frequency of 3 GHz has a wavelength of approximately:

10 centimeters.

1 centimeter.

3 centimeters.

30 centimeters.



8-3A5: The major advantage of an S-band RADAR over an X-band RADAR is:

It is less affected by weather conditions.

It has greater bearing resolution.

It is mechanically less complex.

It has greater power output.



8-3A6: An X band RADAR operates in which frequency band?

8 - 12 GHz.

1 - 2 GHz.

2 - 4 GHz.

4 - 8 GHz.





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8-A-02: Distance and Time
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Element 8: Ship Radar Techniques
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8-A-04: Power, Pulse Width, PRR