The function of duplexer in a RADAR is

Electronics and Communication Engineering (ECE) : Communication Systems - Quiz(MCQ)

to amplify the received signal

to provide gain to the transmitted power

to permit the use of same antenna for transmission and reception

Both (A) and (B)

Correct Answer : Option (C) : to permit the use of same antenna for transmission and reception

Recently Updated in Communication Systems Questions

In TV scanning sequence of lines is

right to left

left to right

left to right for odd fields and right to left for even field

left to right for even fields and right to left for odd field

Correct Answer : left to right

Which of the following terms are applicable to troposcatter propagation?

SIOs

Fading

Faradays rotation

Atmospheric storms

Correct Answer : Fading

Explanation : Tropospheric scatter propagation is subject to two types of fading called Rayleigh fading (due to multipath propagation) and fading due to variations in atmospheric conditions along the propagation path.

A + 1.9 lens has a focal length of 25 mm. The diameter of lens is about

1.3 mm

130 mm

13 mm

None of the above

Correct Answer : 13 mm

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