Why we are using SDH Microwave instead of PDH?
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sorry by mistake i submited above answer here
actualy most of the operator used sdh because higher
bandwith it contains 64 e1 in comparison pdh has fewer.
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there are following methods of protection in m/w system
1. space diversity
2. frequency diversity
3. hibried diversity
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In the 8421 BCD code the decimal number 125 is written as???
i want to know about EPBX system in detail
12 Answers Artefact Projects, India Infotech, Mannar Company, MNC, Siemens, Slash Support, TCS,
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