Skip distance depends on time of day and angle of incidence.
Select an option to see the answer and solution.
ECE · all questionsCommunication Systems
Communication Systems
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
228
Questions
1/12
Page
Pick an option on a question to see the right answer and solution.
It is found that a ship to ship communication suffers from fading. This can be avoided by using
Select an option to see the answer and solution.
A buffer amplifier is
Select an option to see the answer and solution.
SSB can be generated by
Select an option to see the answer and solution.
What is the purpose of peak clipper circuits in radio transmitters?
Select an option to see the answer and solution.
The direction of rotation of a CD is
Select an option to see the answer and solution.
A woofer should be fed from the input through a
Select an option to see the answer and solution.
The characteristic impedance of a twin wire feeder used for TV signals is about
Select an option to see the answer and solution.
In EM waves, polarization
Select an option to see the answer and solution.
The frequency range of 300 kHz to 3000 kHz is known as
Select an option to see the answer and solution.
A telephone channel requires a bandwidth of about
Select an option to see the answer and solution.
Fourier analysis indicate that a square wave can be represented as
Select an option to see the answer and solution.
If sampling is done at the rate of 10 kHz. The bandwidth required is
Select an option to see the answer and solution.
Which of the following is an indirect way of generating FM?
Select an option to see the answer and solution.
In practical commercial FM system, channel bandwidth is
Select an option to see the answer and solution.
One of the advantages of base modulation over collector modulation of a transistor class C amplifier is
Select an option to see the answer and solution.
Leak type bias is used in plate modulated class C amplifier to
Select an option to see the answer and solution.
FM transmitting and receiving equipment as compared to AM equipment is
Select an option to see the answer and solution.
For AM receivers the standard IF frequency is
Select an option to see the answer and solution.
A modem is classified as low speed if data rate handled is
Select an option to see the answer and solution.