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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● = Incorrect answer
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