Which frequencies can't be used reliable beyond the horizon terrestrial communication without repeaters?

0 Answers  

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If anybody have technical test papers for HPCL. Pls, mail me on akanksha417@yahoo.com.

0 Answers  

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What is The Difference B/w Routine Backup & Quaterly Backup of switch

1 Answers   HCL,

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How receiver detect that which is information signal and which is carrier signal and how it seprate both at destination?

4 Answers   Airtel,

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what is ups and inverters. and how to give battery connections for ups.

2 Answers  

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what is the diffrence between S7 200 & S7 300 plc

0 Answers   Amara Raja,

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Explain why the shape of op-amp is triangular not other shape?

0 Answers  

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What are the uses of memristor?

0 Answers  

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i want some more real applications of TDM?

3 Answers  

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explain the bandwidth requirement of a voice signal of 2kHz and a binary data signal with a rate of 2kHz

1 Answers   Wipro,

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all interview questions regarding digital image processing

0 Answers  

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What is the mechanism by which conduction takes place inside the semiconductor?

0 Answers  

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