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Radar Fundamentals
RF Cafe Quiz #7

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All RF Cafe quizzes would make perfect fodder for employment interviews for technicians or engineers - particularly those who are fresh out of school or are relatively new to the work world. Come to think of it, they would make equally excellent study material for the same persons who are going to be interviewed for a job.

Some of these books used in quizzes are available as prizes in the monthly RF Cafe Giveaway.

Note: Many answers contain passages quoted in whole or in part from the text.



1. What is a “radar mile?”
a) 1 nautical mile
b) 1 statute mile
c) 12.36 µs




2. Which best describes a bi-static radar?
a) Fixed transmitter and fixed receiver at
    different locations
b) Uses static electricity for both transmitted and
    received signals
c) Only detects fixed (non-moving) targets




3. What is a radar cross-section (RCS)?
a) An engineering isometric drawing showing a
    slice through the equipment rack(s)?
b) A target’s reflection coefficient relative to a
    perfectly reflecting spherical surface of 1 m2
    cross-section
c) The plane through which a radar signal
    passes through a target




4. What are common units of radar cross-section (RCS)?
a) dBsm
b) dBrcs
c) dBm




5. Who is known as ”The Father of Radar?”
a) Robert Watson-Watt
b) Walter Eugene O'Reilly
c) Albert Einstein




6. Which flying (movement) condition will always result in a Doppler speed of 0 m/s?
a) Perfectly constant speed into/out of the antenna boresight
b) Perfect concentric circle around antenna at constant altitude
c) Speeds at integer multiples of antenna rotation rate




7. What does “MTI” stand for?
a) Multiple Target Indication
b) Mean Time Interval
c) Moving Target Indication




8. Synthetic Aperture Radar (SAR) radar is mostly likely to be located on which platform?
a) Police car
b) Ship
c) Airplane




9. Which feature of a “stealth” aircraft is most responsible for its low observability?
a) Radar absorbent paint
b) Multi-faceted surfaces
c) Minimal use of metals in airframe




10. What kind of radar did the webmaster of RF Cafe work on while in the U.S.A.F?
a) MPN-14
b) RDR-12
c) NEXRAD

 

Need some help? Click here for the answers and explanations.  

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