Answer / reza r

It must be a channel difference between uplink and downlink
frequencies in order to prevent the interference. Depending
to your equipment (e.g. between Base Transceiver Station
(BTS) and Mobile Set (MS) in GSM system) these frequencies
are assigned in a reasonable manner. In this example MSes
have lower uplink frequencies and BTSes have higher uplink
frequencies because of cost & power restrictions in the
mobile sets.

Draw the circuit diagram of 1φ auto sequential commutated current source inverter and explain its operation with equivalent circuits for different modes and necessary waveforms?

0 Answers  

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Power bjt is a current controlled device. Why?

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what is digital communication,digital electronics,flip flops,gates,buffer,memory and draw the diagram of flip flop,buffer,gates,memory?

0 Answers   HCL, TCS,

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Myself Mayuri Parekh.I have technical test for ME in LD engineering college,gujarat.plz send me technical questions and also answers so i can practise.plz send me as early as posibble.my wxam will be in MAY 2009.

3 Answers   LD College,

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Name the breakdown mechanism in a lightly doped p-n junction under reverse biased condition.

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any one have C-Dot interview question.....its urgent ...if any one hav..plzz share as soon as possible.

0 Answers   cDot,

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What are the test parameters to check the proper functionlity of TCP/IP protocol.

0 Answers   Infosys, Mind Tree,

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What is modulation? Explain in detail.

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What is meant by pwm control?

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What is memristor? How many modes it works? Also what is its advantage? How it differ from others & why the name evolve? & What is its uses?

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Can anyone send me question papers for section engineer for railways and send me on my id- abhay_jg@yahoo.com

0 Answers   RRB,

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why use -48 volt DC power in telecom?

5 Answers  

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