ISRO Scientist or Engineer Electronics 2006

Instructions

For the following questions answer them individually

ISRO Scientist or Engineer Electronics 2006 - Question 41


Two carriers of 2 GHz and 4 GHz respectively are frequency modulate by a signal of 10KHz, such that bandwith of the FM signal in the two cases are same. The peak deviation in the two cases are in the ratio of

ISRO Scientist or Engineer Electronics 2006 - Question 42


The bandwidth required for QPSK modulated channel is

ISRO Scientist or Engineer Electronics 2006 - Question 43


Magic T is

ISRO Scientist or Engineer Electronics 2006 - Question 44


Diplexer is made of

ISRO Scientist or Engineer Electronics 2006 - Question 45


The gain G of an antenna of effective area A is given by

ISRO Scientist or Engineer Electronics 2006 - Question 46


If the short circuit and open circuit impedance ofa line are 5 and 20Ω respectively the characteristic impedanceis given by

ISRO Scientist or Engineer Electronics 2006 - Question 47


The input impedance of short circuited line of length l where $$\frac{\lambda}{4} < l < \frac{\lambda}{2}$$, is

ISRO Scientist or Engineer Electronics 2006 - Question 48


Maximum coding gain in

ISRO Scientist or Engineer Electronics 2006 - Question 49


Noise figure of an amplifier depends on

ISRO Scientist or Engineer Electronics 2006 - Question 50


BCH code belongs to

cracku

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