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22 Cards in this Set
- Front
- Back
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Name the components of a primary radar system.
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Transmitter, antenna, receiver, and radar display
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Name two types of radar.
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Primary and Secondary
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What type of polarization would be used to reduce areas of heavy precipitation from the radar display?
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Circular Polarization
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Where is the transponder located?
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In the aircraft
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What are the five major components of the secondary radar system?
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interrogator, transponder, antenna, decoder, radar display
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Name some advantages and disadvantages of secondary radar.
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Advantages: Less vulnerable to blind spots, provides longer range, display not degraded by weather echoes or ground cover
Disadvantages: Only displays aircraft with transponders, does not provide weather information, return is affected by aircraft operation |
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What is a radar-based system that uses both a ground-based interrogator and an aircraft-based transponder?
A. Primary Radar B. Airport Radar C. Secondary Radar D. Global Position Radar |
Secondary Radar
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What is a radio detection device which provides range, azimuth, and/or elevation information called?
A. Transponder B. Radar C. Nondirectional beacon D. VORTAC |
Radar
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Which radar system relies on reflected radio signals and does NOT require cooperative equipment in aircraft?
A. Primary Radar B. Secondary Radar C. Airport Radar D. Positive Radar |
Primary Radar
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What are two types of radar jamming?
A. Position and passive B. Action and active C. Precise and passive D. Passive and active |
Passive and active
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Name the electronic device that permits radar presentations only from targets in motion.
A. Anomalous Propagation B. Moving Target Indicator C. Primary Radar D. Linear Polarization |
Moving Target Indicator
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Which radar feature reduces or eliminates echoes from precipitation?
A. Circular Polarization B. Linear Polarization C. Passive Radar D. Inversion |
Circular Polarization
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What causes anomalous propagation clutter on primary radar systems?
A. Particles in the air slowing the radar signal B. Moisture in the air bending the radar signal C. Warm air over cold air deflecting the radar signal D. Cold air over warm air reflecting the radar signal |
Moisture in the air bending the radar signal
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What causes temperature inversion clutter on primary radar systems?
A. Particles in the air slowing the radar signal B. Moisture in the air bending the radar signal C. Warm air over cold air deflecting the radar signal D. Cold air over warm air reflecting the radar signal |
Warm air over cold air deflecting the radar signal
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The primary radar clutter caused by dropping large amounts of shredded foil is called ________ jamming.
A. active B. inactive C. passive D. static |
passive
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What is secondary radar interference caused by an improperly adjusted transponder operating near to the antenna called?
A. Ring around B. Anomalous propagation C. Range interference D. Inversion |
Ring around
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Which of the following is an advantage of a Secondary Radar System?
A. Displays weather echoes B. ONLY displays aircraft with transponders C. Displays are NOT degraded by weather echoes or ground clutter D. Signal strength is affected by aircraft orientation |
Displays are NOT degraded by weather echoes or ground clutter
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Broadcasts interrogator transmission
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Antenna
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Processes transponder replies and forwards data to the radar display
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Decoder
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Ground-based transmitter/receiver
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Interrogator
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Airborne receiver/transmitter
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Transponder
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Electronic presentation of radar derived information
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Radar display
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