B.TechSemester 62024-25Satellite CommunicationBEC061

Satellite Communication (BEC061) - AKTU Question Paper 2024-25

B.Tech · Semester 6 · Free PDF Download

This is the official AKTU Satellite Communication Previous Year Question Paper for B.Tech Semester 6, academic session 2024-25. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech

Semester:Semester 6

Session:2024-25

University:AKTU / UPTU

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Questions Asked in 2024-25

Satellite Communication (BEC061) — complete question paper · 70 marks · 3 Hours

Section AAttempt all q u e s t i o n s i n b r i e f . 02 x 7 = 14

a
Explain the sun synchronous orbit
b
State Kepler’s second law of planetary motion
c
Elucidate the term Sun Transit Outage with a neat diagram
d
Elaborate the earth station parameters affecting the C/N ratio
e
The noise figure of an amplifier is 4dB. Calculate its equivale nt noise temperature. Assume the room temperature to be 290K
f
Draw the block diagram of GPS functioning
g
Discuss about space X launch system

Section BAttempt any three o f t h e f o l l o w i n g : 07 x 3 = 21

a
Explain the terms Space qualification and Space debris
b
Discuss argument of perigee, mean anomaly and true anomaly
c
Explain TT and C system briefly
d
Discuss briefly about VSAT? Describe the distinguishing feature of VSAT?
e
Briefly describe the satellite launch sequence

Section CAttempt any one p a r t o f t h e f o l l o w i n g : 07 x 1 = 07

a
Enlist the elements of satellite communication. Elaborate each element with befitting block diagram
b
Elaborate the term LEO, MEO and GEO. Also write their advantage s and disadvantages
a
Elaborate the terms perigee and apogee in the context of satell ite motion. A satellite is in an elliptical orbit with a perigee at 1000 km a nd apogee of 4000 km. Using mean radius of earth to be 6378.14 Km. Find the perio d of orbit in hours, minutes and seconds and also calculate eccentricity of the orbit
b
An earth station is located at a longitude of 76 ° east and latitude of 13 ° north while the satellite is at 83° east. Calculate the elevation and azimuth requirement of transmitting antenna. Assume the radius of satellite orbit R sa 42164.17 Km and radius of the earth Rea=6378.137Km
a
Explain the system noise temperature. Derive its relation for e quivalent system noise temperature
b
A satellite TV signals occupies th e full transponder bandwidth of 36 MHz, and it desire to provide a C/N ratio of 22 dB tat earth station. If a downlink frequency of 4GHz is employed and other losses amount to 3.4 dB, what mus t be the G/T ratio of the earth if EIRP is 37dBW? The path length may be ass umed to be
a
Explain the basic principle of a GPS system. Explain why a mini mum of four satellites must be visible at an earth location utilizing the GPS system for position determination
b
Delineate the DBS home receiver with help of neat block diagram
a
Differentiate between PSLV and GSLV and also write their veh icle and technical specifications clearly
b
Explain the term intelligence testing, control and decision making for space. Also discuss intersatellite link in short

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

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