The circuit presented here can beused for connecting two telephones in parallel and also as a2-line intercom.Usually a single telephone is connectedto a telephone line. If another telephoneis required at some distance, a parallelline is taken for connecting the othertelephone. In this simple parallel line operation,the main problem is loss of privacybesides interference from the otherphone. This problem is obviated in thecircuit presented here.Under normal condition, two telephones(telephone 1 and 2) can be usedas intercom while tel ....etc

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please be help in the documentation of watch dog for telephones....!!! ....etc

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Definition

The accelerated growth of content-rich applications that demand high bandwidth has changed the nature of information networks. High-speed communication is now an ordinary requirement throughout business, government, academic, and work-at-home environments. High-speed Internet access, telecommuting, and remote LAN access are three services that network access providers clearly must offer. These rapidly growing applications are placing a new level of demand on the telephone infrastructure, in particular, the local loop portion of ....etc

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Definition

LRR- LINE REFLECT REFLECT is a new self-calibration procedure for the calibration of vector network analyzers (VNA). VNA measure the complex transmission and reflection characteristics of microwave devices. The analyzers have to be calibrated in order to eliminate systematic errors from the measurement results.

The LRR calibration circuits consist of partly unknown standards, where L symbolizes a line element and R represents a symmetrical reflection standard. The calibration circuits are all of equal mechanical length. The obs ....etc

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Line Arresters InTransmission Line
Jithin Lal K
S7 E2 RN:220
College Of Engineering, Trivandrum
2007-11 batch





CONTENTS
1)Introduction
2)TLA Components
3)Types of TLA
4)Working of TLA
5)Arresters Location
6)Problems in Applications of TLA
7)Transverse Discharge
8)Experiments
9)Impulse Voltage Waveforms
10) Results
11)Minimum Distance
12)Conclusion


INTRODUCTION
Transmission Line Arresters (TLA)
Any arrester that is applied on the lines of a power syst ....etc

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i want complete documentation of watch dog for telephones cicuit ....etc

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I am Rajib Lochan Meher.I read the name of a electrical project like Eb (electrical) wireless billinng system through power line (230v ac line).I want to do this project.please send me the complete idea for doing this project.My Email id is [email protected]. ....etc

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Respected sir/madam,
Kindly send me the report on satellite telephones.




Vinay.R ....etc

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Satellite telephones
there are confirmed reports that terrorists involved in Mumbai blast used sat phones for communication. Most of us are not familiar with satellite telephones. It comes to daily use for those who work in ship, military, disaster management, etc. Most mobile telephone networks operate close to capacity during normal times, and during emergency situations due to large call volumes, the telephone systems get overloaded. Satellite telephones are of use when we need congestion free, portable means of communication. A satellite p ....etc

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please help me out to write a matlab program of medium line transmission line ....etc

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