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Expert	Average Ratings	Expertise
Mark C J Posen U.K. On Vacation returns 12/05/2009 View Profile View Past Answers	Knowledgeability 9.59 Clarity of Response 9.21 Timeliness 8.62 Politeness 9.26 Total Questions 251	I am happy to answer questions of a technical and regulatory nature in the area of satellite and radio communications. I am best able to answer questions about systems and technology and less able to respond to questions about specific hardware and equipment setup and installation, but I'm happy to try and address any question put my way. My main areas of expertise are link analysis (link budgets, performance, Eb/No, capacity), interference analysis (C/I, protection ratios, interference avoidance), spectrum management (frequency coordination, inter-system sharing), Radio Regulation (ITU, ITU-R) and satellite technologies and trends.

Expert

Average Ratings

Expertise

Mark C J Posen

U.K.

On Vacation
returns 12/05/2009

I am happy to answer questions of a technical and regulatory nature in the area of satellite and radio communications. I am best able to answer questions about systems and technology and less able to respond to questions about specific hardware and equipment setup and installation, but I'm happy to try and address any question put my way. My main areas of expertise are link analysis (link budgets, performance, Eb/No, capacity), interference analysis (C/I, protection ratios, interference avoidance), spectrum management (frequency coordination, inter-system sharing), Radio Regulation (ITU, ITU-R) and satellite technologies and trends.

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Recent Answers

2009-11-06 Satellite internet in India:

Hello, Many thanks for this question. Regarding satellite internet in India, I don't personally get involved with internet provisioning, so I don't have any direct information, but the Satellite

2009-10-20 satellite communication:

Hello, Many thanks for this question. Unfortunately it's much too complicated to describe the process here. You need an accurate model of the sun's movement relative to the Earth and then you need

2009-10-05 Roll Off Factor...:

Hi again Anurag, There is not really a fixed relationship between the roll-off and the spacing factor in the way that you are looking for. It depends on the spectrum shape of the your carrier and the

2009-10-01 Roll Off Factor...:

Hi Anurag, Yes, what you have stated is exactly the case. BUT there is an important clarification here. It is true based *only* on the assumption that the roll-off factor is 0.35 and that the "carrier

2009-09-29 Roll Off Factor...:

Hi Anurag, Really the issue depends on what ISRO mean when they allocate you 6 MHz. Do they allow a guard-band between your allocation (in which you can completely fill the 6 MHz with your carrier

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