Electronics and Communication Engineering - Communication Systems

36.
A remote control of TV uses a 10 bit word. The maximum number of total commands it can transmit is
64
256
512
1024
Answer: Option
Explanation:

210 = 1024.


37.
Telecine equipment in a TV studio consists of
projector telecine
flying spot telecine
digital CCD telecine
none of the above
Answer: Option
Explanation:

It may be any one of these.


38.
TV signal strength when expressed in dB m has the reference of
10 μV/m
5 μV/m
2 μV/m
1 μV/m
Answer: Option
Explanation:

TV signal strength has a reference of .


39.
A sinusoidal voltage amplitude modulates a carrier of peak value 5 kV. Each side band has an amplitude of 500 V. The modulation index is
0.1
0.2
0.4
0.8
Answer: Option
Explanation:

.


40.
Kell factor is about
5
3
0.7
0.2
Answer: Option
Explanation:

Kell factor indicates reduction in vertical resolution and varies from 0.65 to 0.85.