Satellite Communication (KEC062) - AKTU Question Paper 2021-22
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 2021-22. 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:2021-22
University:AKTU / UPTU
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Questions Asked in 2021-22
Satellite Communication (KEC062) — complete question paper
Section AAttempt all q u e s t i o n s i n b r i e f . 2*10 = 20
- aExplain Sun-synchronous orbits. 1
- bIllustrate the difference between geosynchronous orbit and geostationary orbit with suitable diagram
- c“All the major launching site s are situated close to equator”. Justify. 2
- dExplain Sun Transit Outage i n satellite systems with a diagram 2
- eDiscuss the factors responsible for various orbital effects. 3
- fExplain the significance of T elemetry, Tracking and Command System. 3
- gList the various block of a GPS receiver. 4
- hExplain the need of P and C /A codes in GPS Segment. 4 (i) List the features of cryogen ic engines in context to GSLV. 5 (j) Identify the various types of launch vehicles developed so far by ISRO. 5
Section BAttempt any three o f t h e f o l l o w i n g : 10*3 = 30
- aAnalyze the history and achie vements of satellite communica tion systems in world. ( b ) I d e n t i f y t h e v a r i o u s o r b i t a l e l e m e n t s t h a t d e f i n e a s a t e l l ite’s orbit. Support your answer with suitable diagrams
- cDerive the expression for power received by the receiver in a satellite link in terms of effective apertu re area of receiver antenna. E xplain the terms power flux density and Eff ective Isotropic Radiated Power (EIRP) in context to satellite link design
- dIllustrate the implementa tion of VSAT Systems and their significance. 4
- eDemonstrate the mechanism of satellite launching and also d iscuss the significance of launching a satellite from west to east
Section CAttempt any one p a r t o f t h e f o l l o w i n g : 10*1 = 10
- aDemonstrate the various types of orbits for satellites. Dep ict the position of various orbits with a diagram. List the advantages of placing the satellites in these orbits
- bDiscuss the various types of satellites. Also discuss the a dvantages and applications of the satellites
- aDiscuss the Kepler’s sec ond law of planetary motion. Explain points of perigee and apogee. A satellite is moving in an elliptical orbit with point of perigee at 800 km and point of apogee at 2300 km. Determine: (i)Velocity at perigee and apogee (iii)Time period of satellite Take radius of earth to be 6375 Km
- bIllustrate the significan ce of look angles for a satellite using a suitable diagram. Explain the relation to determine the elevation angle and azimuth angle. An earth station is located at 30o West longitude and 50o North latitude. Determine the earth station azimuth and elevation angles with respect to geostationary satellite located at 50o West longitude. (Assume orbital radius: 42764 km and earth’s radius 6360
- aDiscuss in brief the various s egments of a satellite system. Demonstrate each segment with the help of suitable diagram
- bExplain the significance of C/N ratio and G/T ratio for a s atellite system. A satellite carrying a 17 GHz continuous wave (CW) beac on transmitter is located in geosynchronous orbit 42000 km from an earth station. The beacon’s output power is 0.3 W, and it feeds an an tenna with 18.9 dB gain towards the earth station. The earth station receiving antenna aperture efficiency is 65 percent. The effective apertu re area is 20m2. Determine: (i) EIRP (ii) Path loss (iii) Receiving antenna gain
- aBriefly discuss the positi on location principle of GPS with a d ia g r a m and relevant equations. Also dis cuss the various GPS codes and their generation
- bIllustrate the working of Direct Broadcast Satellite (DBS) television network. Also explain the components required to set up a DBS system
- aDiscuss the history of Indian Satellite Systems and the maj or achievements in the field of Space. Also discuss the formation of ISRO
- bDiscuss the various generat ions of Space launch vehicles used by India. Also discuss the specifications of GSLV MK-III in detail
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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