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Electronics and Communication Engineering - Communication Systems

Exercise : Communication Systems - Section 16
6.
In MF range, increasing the transmitter power
increases the range of transmitter
does not increase the range of transmitter because propagation is limited by tilt
decreases the range of transmitter because propagation is limited by tilt
increases the range of transmitter because propagation is through space waves
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
The most frequent users of long distance VLF transmission is
ship communication
radio broadcasting
TV broadcasting
telephone and telegraph
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
BFO stands for
Beat Frequency Oscillator
Broad Frequency Oscillator
Blocking Frequency Oscillator
Ballistic Frequency Oscillator
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
SSB-SC stands for
Single Side Band-Suppressed Carrier
Single Side Band-Synchronous Carrier
Synchronous Side Band-Suppressed Carrier
Synchronous Side Band-Self Carrier
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
A lens has a hyperfocal distance of 7.5 m. It is focused at 7.5 m. Then
all objects from 7.5 m to infinity will appear in focus
all objects from 3.75 m to infinity will appear in focus
all objects from 0 to 7.5 m will appear in focus
all objects from 0 to 3.75 m will appear in focus
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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