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0
votes
1
answer
6.1k
views
1
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Draw the diagram of fusion splice and rigid alignment tube splice.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
1
vote
1
answer
832
views
1
answer
Differentiate between LED and LASER (any eight points).
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
2
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1
answer
17k
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1
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Draw block diagram of OTDR and explain its working.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
0
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1
answer
1.3k
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1
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State any six advantages and two disadvantages of fiber optics cable.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
0
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1
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1.7k
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1
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Calculate critical angle of incidence between two material with different refractive indices n1 = 1.4 and n2 = 1.36. Also calculate numerical aperture and acceptance cone angle.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
0
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1
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3.8k
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1
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A silica optical fiber with a core diameter large enough to be considered by ray theory analysis has a core reflective index of 1.50 and a cladding refractive index of 1.47.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
0
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1
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3.8k
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1
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Draw block diagram of Optical Fiber Communication System. Describe the function of different sensors used in optical communication system.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
9
votes
1
answer
55k
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1
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Draw and explain the block diagram of fiber optic communication system. List its advantages and disadvantages.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
0
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1
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2.8k
views
1
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Define : Critical angle. State Snells law.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
0
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1
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2.7k
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1
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Define : (i) Reflection (ii) Refraction (iii) Absorption in scattering w.r.t. light theory.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
0
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1
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3.0k
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1
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Draw the microwave spectrum and designate the appropriate band in it. OR Classify the optical fibers based on bands and specify their operating frequency range.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
1
vote
1
answer
30k
views
1
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A step index fiber has a numerical aperture of 0.16, a core refractive index of 1.45 and core diameter of 90 mm, calculate (i) The acceptance angle . (ii) the refractive index of cladding.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
0
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1
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4.4k
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1
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Calculate critical angle of incidence between two substances with different refractive indices n1 = 1.5 and n2 = 1.46.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
10
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1
answer
60k
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1
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A glass clad fiber is made with core glass of refractive index 1.5 and the cladding is dopped to give fractional index difference of 0.0005.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
0
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1
answer
5.0k
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1
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Define with respect to fiber optic cable (i) Numerical Aperture, (ii) Acceptance angle.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
0
votes
1
answer
2.5k
views
1
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Compare Non synchronous and synchronous satellite based on (i) Orbit (ii) Visibility (iii) Altitute (iv) Footprint
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
2
votes
1
answer
12k
views
1
answer
What is uplink and downlink frequency. Give reason for difference in uplink and downlink frequency.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
0
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1
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5.6k
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1
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Define following terms w.r.t. satellite - (i) Azimuth angle (ii) Elevation angle.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
5
votes
1
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25k
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1
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Draw block diagram of satellite subsystem and describe function of each sections.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
0
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1
answer
4.3k
views
1
answer
Describe the function of Altitude Control Subsystem in Satellite for keeping satellite in its orbit.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
0
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1
answer
1.4k
views
1
answer
State four advantages of geo-stationary satellite.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
0
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1
answer
2.0k
views
1
answer
Define following terms w.r.t. satellite : (i) Foot print (ii) Azimuth angle
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
1
vote
1
answer
9.4k
views
1
answer
Describe the antenna subsystem of satellite.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
0
votes
1
answer
2.3k
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1
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Draw the block diagram of communication channel subsystem and state its principle of operation. OR Draw and explain the block diagram of transponder/communication channel subsystem.
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
0
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1
answer
1.2k
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1
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Explain the following terms w.r.t. satellite : (i) Elevation, (ii) Altitude
advanced communication system updated 6.0 years ago by teamques10 ★ 70k
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