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AT Basics > Fundamentals of Radar > Flashcards

Fundamentals of Radar Flashcards

1
Q

What are the two types of radar?

A

Primary radar and secondary radar

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2
Q

What is primary radar?

A

Radar without beacons, echo only

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3
Q

What is secondary radar?

A

Radar with beacons (transponders)

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4
Q

What is resolution?

A

Ability to distinguish between targets

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5
Q

What are the 5 elements of primary radar?

A

Transmitter, Receiver, Duplexer, Antenna, Display

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6
Q

What control can eliminate ground clutter?

A

MTI (Moving Target Indicator)

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7
Q

What control can eliminate precipitation?

A

Circular Polarization

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8
Q

What is Anomalous Propagation?

A

Radar signal bent by moisture creating false returns

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9
Q

What is Temperature Inversion?

A

Radar signal bent by warm air over cool air creating false returns

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10
Q

What are false targets?

A

Spurrious targets produced by anomalous propagation or temperature inversion

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11
Q

What is electronic radar interference?

A

Unintentional interference with the radar

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12
Q

What is radar jamming?

A

Intentional interference with the radar

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13
Q

What are the two types of radar jamming?

A

Passive (chaff) and active (electroninc interference)

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14
Q

What are target fades?

A

Targets in areas with weak radar returns

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15
Q

What equipment is added to make secondary radar?

A

Interrogator

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16
Q

What transponder suffixes are used to indicate transponder with altitude readout?

A 
/U does not have DME
/A has DME
/P TACAN capable
/I RNAV capable
/G GNSS (GPS) capable
/W (/A with RVSM)
/Z (/I with RVSM)
/L (/G with RVSM)
17
Q

What is ring around on a radar?

A

Improperly adjusted transponder causes radar to show multiple returns ringing around the radar

18
Q

What are some advantages of secondary radar?

A

Better target reception, longer range, not bothered by ground clutter or weather

19
Q

What are some disadvantages of secondary radar?

A

Doesn’t pick up primary targets, does not provide weather information, can get echos

20
Q

What types of items are on a video map?

A

Airports, airways, boundaries, approach courses, obstructions, range marks

21
Q

What is radar sweep?

A

Movement of the radar in a circular motion as it updates the display

22
Q

What transponder suffixes are used to indicate RVSM capable?

A

H - Transponder or mode C inoperative
W - VOR navigation
Z - RNAV navigation
L - GPS navigation

AT Basics (30 decks)

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