sir please provide me the previous technical papers for hpcl writtien exam

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Define quad?

0 Answers  

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how does modulation reduce bandwidth

0 Answers  

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types of modulation and their differences

2 Answers  

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Why does all cellular networks have same shape of sim?

0 Answers  

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What is VSWR? what are waveguides and their types. What is Aloha? Shannon's information capacity theorem, Sampling theorem, antenna gain, types of antennae, GSM/CDMA comparison, modulation techniques, Superheterodyne receiver

2 Answers   Ericsson,

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We use two different bands for GSM/DCS communications; GSM900 and DCS-1800. Which one is the better of the two in terms of quality and coverage?

1 Answers  

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How is focussing achieved?

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Which gates are called as universal gate and what are its advantages?

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which ip version we are using at present?

3 Answers   NSN,

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diode is active or passive and why?

9 Answers  

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What do you mean by Splitter?

0 Answers   NSN,

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