MICROWAVE COMMUNICATION QUIZ

Both B and C

Thyratron tube

Klystron tube

Tunnel diode

Single mixer stage

Local oscillator

Duplexer stage

Transmitter oscillator

In a reflect klystron has its output taken from the reflector plate

Has a low Q factor for narrow operation.

Produces a frequency which is independent of the cavity size.

Is equivalent to an LC resonant circuit

Must be increased

Must remain as before

Must be doubled

May be decreased

3000 to 30000 MHz

300 to 3000 MHz

30 to 30000 MHz

10 to 10000 MHz

Is capable of generating continuous microwave power of the order of kilowatt

Operates over a positive resistance characteristic

Generates frequencies which are below 100 MHz

Depends on the formation of charge domain

May be tested during the first five minutes of any hour

Must have its battery replaced after emergency use

All of these

Must be capable of floating or being secured to a survival

The energy liberated form the collector

The effect of an external magnetic field

The absorption of energy by the signal from an electron stream

The energy contained the cavity resonators

Klystron

Reflex-klystron

Thyratron

Magnetron

S = 3λR/L

S = 2λR/L

S = λR/RL

S = λR/L