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Block 10 > 1a > Flashcards

1a Flashcards

1
Q

Extremely short powerful bursts of radio frequency energy are transmitted

A

Radar

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2
Q

Radiates RF and receives RF echoes

A

Antenna system

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3
Q

Isolates and protects receiver when transmitter fires

A

Duplexer

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4
Q

Converts RF echoes into electrical signals for energy

A

Receiver

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5
Q

displays target

A

Indicator

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6
Q

To gather accurate info about the surrounding area

A

The purpose of a radar system

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7
Q

Radar transmitters operate in what frequency range

A

X-band between 9300-9500 MHz

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8
Q

The radar transmitter travels at the speed of light which is

A

161,829 NM/sec

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9
Q

A radar mile =

A

12.36 microseconds

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10
Q

The orientation of the E wave

A

Polarization

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11
Q

The time between transmit pulses

A

Listening time

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12
Q

PRF = Pulse repetition frequency

A

Pulses per second

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13
Q

The longer the pulse length

A

The higher average power

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14
Q

This establishes PRF

A

Master timer/modulator

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15
Q

Transistors designed for high freq & high voltage applications

A

Microwave Tubes

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16
Q

High power, high freq oscillator also known as transmitter oscillator

A

Magnetron

17
Q

Electron resonance magnetron oscillator produces high power outputs in the GHz range

A

Cavity oscillations

18
Q

This type of wave tube has high gain, low noise, wideband microwave field

A

Traveling Wave Tube

19
Q

This establishes timingof transmitter

A

PRF Generator

20
Q

Unterminated transmission line

A

Pulse Forming Network

21
Q

Advantages of waveguides include minimum copper loss, minimum dielectric loss and?

A

Greater power capability

22
Q

This is caused by interaction between H-field and E-field

A

Waveguide Propagation

Block 10 (8 decks)

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