MICROWAVE COMMUNICATION QUIZ

1000 to 10,000 GHz

1 to 500 MHz

1 to 100 GHz

10 to 1000 GHz

Is used to check the percentage of modulation

Is used for receiver alignment

Indicates both the range and azimuth of a target

Indicates only the range of a target

The absorption of energy by the signal from an electron stream

The energy contained the cavity resonators

The energy liberated form the collector

The effect of an external magnetic field

All of these

May be tested during the first five minutes of any hour

Must be capable of floating or being secured to a survival

Must have its battery replaced after emergency use

Increases receiver sensitivity for echoes from targets

Reduce interference from the effects of sea return

Vary the pulse frequency in order to control the maximum target

Improve the target bearing resolution

S = 2λR/L

S = 3λR/L

S = λR/RL

S = λR/L

Rayleigh fading

Delayed spreading

Slow fading

Random Doppler shift

Ferrite emitter

Capacitor

RF emitter

Varactor-triac

To the tone of the pulse repetition

Tune the magnetron to the correct frequency

Which may be used to tune the radar receiver

Which may be used to tune the radar synchronizer

At the control grid of the electron gun

At the collector end of the helix

At the cathode end of the helix

At the collector