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Recent questions tagged communication

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1
Telecommunication
Consider that a signal is transmitted over a channel of bandwidth 200 kHz and the total path loss in the channel is found to be 60dB. The noise power per hertz at the receiver is- 100dBm. Determine the required transmit power to achieve data rate of 40kb/s.
Consider that a signal is transmitted over a channel of bandwidth 200 kHz and the total path loss in the channel is found to be 60dB. The noise power per hertz at the rec...
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2 votes
1 answer
9
UGC NET CSE | December 2013 | Part 3 | Question: 48
____ is a type of transmission impairment in which the signal looses strength due to the resistance of the transmission medium Attenuation Distortion Noise Decibel
____ is a type of transmission impairment in which the signal looses strength due to the resistance of the transmission mediumAttenuationDistortionNoiseDecibel
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2 votes
1 answer
11
UGC NET CSE | December 2013 | Part 3 | Question: 43
What is the bit rate for transmitting uncompressed 800 $\times$ 600 pixel colour frames with 8 bits/pixel at 40 frames/second? 2.4 Mbps 15.36 Mbps 153.6 Mbps 1536 Mbps
What is the bit rate for transmitting uncompressed 800 $\times$ 600 pixel colour frames with 8 bits/pixel at 40 frames/second?2.4 Mbps15.36 Mbps153.6 Mbps1536 Mbps
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1 votes
1 answer
13
UGC NET CSE | June 2012 | Part 3 | Question: 64
Match the following with link quality measurement and handoff initiation : ... $\text{(a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)}$
Match the following with link quality measurement and handoff initiation :$\begin{array}{clcl} \text{(a)} & \text{Networked-Controlled}& \text{(i)} & \text{MS connect to...
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2 votes
1 answer
14
UGC NET CSE | June 2012 | Part 2 | Question: 45
_____ is a satellite based tracking system that enables the determination of person’s position Bluetooth WAP Short Message Service Global Positioning System
_____ is a satellite based tracking system that enables the determination of person’s positionBluetoothWAPShort Message ServiceGlobal Positioning System
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2 votes
1 answer
15
UGC NET CSE | June 2012 | Part 2 | Question: 39
For the transmission of the signal. Bluetooth wireless technology uses time division multiplexing frequency division multiplexing time division duplex frequency division duplex
For the transmission of the signal. Bluetooth wireless technology usestime division multiplexingfrequency division multiplexingtime division duplexfrequency division dupl...
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2 votes
1 answer
16
UGC NET CSE | June 2012 | Part 2 | Question: 19
The station to hub distance in which it is 2000 meters 100 Base-T$_X$ 100 Base-F$_X$ 100 Base-T$_4$ 100 Base-T$_1$
The station to hub distance in which it is 2000 meters100 Base-T$_X$100 Base-F$_X$100 Base-T$_4$100 Base-T$_1$
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6 votes
2 answers
19
ISRO2015-49
What frequency range is used for microwave communications, satellite and radar? Low frequency$: 30$ kHz to $300$ kHz Medium frequency$: 300$ kHz to $3$ MHz Super high frequency$: 3000$ MHz to $30000$ MHz Extremely high frequency$: 30000$ kHz
What frequency range is used for microwave communications, satellite and radar?Low frequency$: 30$ kHz to $300$ kHzMedium frequency$: 300$ kHz to $3$ MHzSuper high freque...
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7 votes
1 answer
20
ISRO2008-9
What is the bandwidth of the signal that ranges from $40$ kHz $4$ MHz $36$ MHz $360$ kHz $3.96$ MHz $396$ kHz
What is the bandwidth of the signal that ranges from $40$ kHz $4$ MHz$36$ MHz$360$ kHz$3.96$ MHz$396$ kHz
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12 votes
2 answers
21
ISRO2007-24, ISRO2016-67
Bit stuffing refers to inserting a $0$ in user stream to differentiate it with a flag inserting a $0$ in flag stream to avoid ambiguity appending a nipple to the flag sequence appending a nipple to the use data stream
Bit stuffing refers toinserting a $0$ in user stream to differentiate it with a flaginserting a $0$ in flag stream to avoid ambiguityappending a nipple to the flag sequen...
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7 votes
2 answers
22
ISRO2007-22
Phase transition for each bit are used in Amplitude modulation Carrier modulation Manchester encoding NRZ encoding
Phase transition for each bit are used inAmplitude modulationCarrier modulationManchester encodingNRZ encoding
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9 votes
3 answers
23
ISRO2007-20
If the bandwidth of a signal is $5$ kHz and the lowest frequency is $52$ kHz, what is the highest frequency $5$ kHz $10$ kHz $47$ kHz $57$ kHz
If the bandwidth of a signal is $5$ kHz and the lowest frequency is $52$ kHz, what is the highest frequency$5$ kHz$10$ kHz$47$ kHz$57$ kHz
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5 votes
2 answers
24
ISRO2007-13
By using an eight bit optical encoder the degree of resolution that can be obtained is (approximately) $1.8^\circ$ $3.4^\circ$ $2.8^\circ$ $1.4^\circ$
By using an eight bit optical encoder the degree of resolution that can be obtained is (approximately)$1.8^\circ$$3.4^\circ$$2.8^\circ$$1.4^\circ$
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0 votes
5 answers
25
UGC NET CSE | June 2014 | Part 2 | Question: 01
Infrared signals can be used for short range communication in a closed area using _______ propagation. Ground Sky Line of sight Space
Infrared signals can be used for short range communication in a closed area using _______ propagation.GroundSky Line of sight Space
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