electronics systems and technologies questions - difficult

7/17/2019 Electronics Systems and Technologies Questions - Difficult

http://slidepdf.com/reader/full/electronics-systems-and-technologies-questions-difficult 1/3

ELECTRONICS SYSTEMS AND TECHNOLOGIES QUESTIONS DIFFICULT QUESTION

1. What is the freqe!"# $iffere!"e %i! MH&' (et)ee! the ara*

a!$ +isa* "arriers i! S#ste, -G/

ANSWER0 . MH&

2. Ree$3S4*4,4! "4$es ti*i&e a te"h!iqe "a**e$ 55555555 t4

rearra!6e the $ata i!t4 a !4!*i!ear 4r$eri!6 s"he,e t4

i,7r4+e the "ha!"e 4f $ata "4rre"ti4!.

ANSWER0 INTERLEA8ING

9. What is the (it rate 4f STS 3 1/

ANSWER0 1.:; M(7s

;. U7*i!< earth stati4! has 1 <W 4f si6!a* a!$ e=7erie!"es a

!4ise 74)er 4f 2W. The Q>S? ,4$*at4r tra!s,its @ M(7s.

Ca*"*ate the e!er6# 7er (it t4!4ise 74)er s7e"tra* $e!sit#

rati4! %E(N@'i! $- if the si6!a* (a!$)i$th is 9 MH&.

ANSWER0 : $-

. C4!si$er a! a,7s "e***ar 7h4!e )ith 9@ ?h& RF eqi+a*e!t

(a!$)i$th. The 7h4!e is "4!!e"te$ t4 a ,4(i*e a!te!!a. If

the !4ise fi6re 4f the 7h4!e is $(B the "4a=ia* "a(*e*4ss is 9 $(B a!$ the a!te!!a has a! effe"ti+e te,7eratre

4f 2@ <B "4,7te the !4ise fi6re i! $( 4f the ,4(i*e

re"ei+er s#ste, as referre$ t4 the i!7t 4f the a!te!!a

ter,i!a*s.

ANSWER0 $-

. A ra$ar tra!s,itter has a 74)er 4f 1@ <W a!$ 47erates at a

freqe!"# 4f . GH&. Its si6!a* ref*e"ts fr4, a tar6et 1

<, a)a# )ith a ra$ar "r4ss se"ti4! 4f [email protected] sqare ,eter. The

6ai! 4f the a!te!!a is 2@ $-i. Ca*"*ate the re"ei+e$ si6!a*

74)er.

ANSWER0 [email protected] fW. The thi"< "4a=ia* "a(*e i,7*e,e!tati4! 4f sta!$ar$ Ether!et

ANSWER0 1@-ase



:. If a t4ta* 4f 99 Mh& 4f (a!$)i$th is a**4"ate$ t4 a

7arti"*ar freqe!"# $i+isi4! $7*e= %f$$' "e***ar

te*e7h4!e s#ste, )hi"h ses t)4 2 ?h& si,7*e= "ha!!e*s t4

7r4+i$e f** $7*e= +4i"e a!$ "4!tr4* "ha!!e*sB "4,7te the

!,(er 4f "ha!!e*s a+ai*a(*e 7er "e** if the s#ste, ses ;"e** rese.

ANSWER0 1

. A 7he!4,e!4! 4! the srfa"e 4f the s! )ith a77eara!"e a!$

$isa77eara!"e 4f $ar< irre6*ar*# sha7e$ areas.

ANSWER0 11 #ear s!s74t

1@. A CDMA ,4(i*e ,easres the si6!a* stre!6th fr4, the (ase as

1@@ $-,. What sh4*$ the ,4(i*e tra!s,itter 74)er (e set t4as a first a77r4=i,ati4!B "4!si$eri!6 $- at ,4(i*e

74)er "4!t4*/

ANSWER0 2@ ,W

11. The ,44! 4r(its the earth )ith a 7eri4$ 4f a77r4=i,ate*# 2:

$a#s. H4) far a)a# is it/ Ass,e "ir"*ar 4r(it.

ANSWER0 9:; M,

12. A ra$i4 "4,,!i"ati4! *i!< is t4 (e esta(*ishe$ +ia the

i4!4s7here. The ,a=i,, +irta* hei6ht 4f the *a#er is 11@

<,. at the ,i$74i!t 4f the 7ath a!$ the "riti"a* freqe!"#

is ; MH&. If the $ista!"e (et)ee! the ra$i4 stati4!s is @@

<,B )hat is the sita(*e +a*e f4r the 47ti,, )4r<i!6

freqe!"#/ Use f*at terrai! a!a*#sis.

ANSWER0 :.; MH&

19. What is the *e!6th 4f the 7ath t4 a 6e4stati4!ar# sate**ite

fr4, a! Earth stati4! if the a!6*e 4f e*e+ati4! is 9@@/

ANSWER0 9@@@ <,

1;. Whe! a ser reqest f4r ser+i"eB there is ,i!i,a* "a** set

7 ti,e a!$ the ser is 6i+e! i,,e$iate a""ess t4 a "ha!!e*

if 4!e is a+ai*a(*e. What $4 #4 "a** this ,a4r "*ass f4r



tr!<e$ ra$i4 s#ste, )here qei!6 is !4t 7r4+i$e$ f4r "a**

reqest/

A!s)er0 L4"a* Ca** C*eare$ S#ste, %LCC'

electronics systems and technologies questions - difficult

Documents