In a high speed modem the data rate handled is about

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

1000 bps

5000 bps

20000 bps

50000 bps

Correct Answer : Option (B) : 5000 bps

Explanation : When data rate is in the range of 2400 to about 10800 bits per second, modem is designated as high speed.

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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