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Block 10 > 1b > Flashcards

1b Flashcards

1
Q

Rotatable antenna & reflector assembly

A

Scanner Antenna

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2
Q

This type of antenna has no reflector or feedhorn

A

Slotted Waveguide

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3
Q

This radiates RF energy from transmitter and highly directional beam 

A

Radar antenna systems 

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4
Q

Beam is changed electricly. Individual radiating elements

A

Electronic beam steering

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5
Q

What are the benefits of electronic scanning

A

Increased data rates, virtually instantaneous positioning of radar beam, elimination of mechanical errors and failures, increased flexibility of radar

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6
Q

Maintains target tracks in computer with updates from scanning radar system

A

Track while scan radar

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7
Q

Point at which no radar returns

A

Radar Horizon

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8
Q

The radar horizon is dependent on the altitude of antenna and?

A

Bending of a wave

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9
Q

Around obstruction

A

Diffraction

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10
Q

Velocity change, atmospheric

A

Refraction

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Block 10 (8 decks)

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