Satellite Communications/Satcom

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Question
Sir, I will change my FEC rate from 3/4 to 7/8 in a DVBS platform with QPSK modulation over a BW of 9Mhz.
Did I need to increase my U/L power o/p of HPA?
if yes, How can I calculate the additional power requirement?

Answer
Hi Mr ND swain,
Simple answer is NO. Technical justification is you will be using lesser information rate for the same bandwidth and may be BER will deteriorate. For more detailed explanation you may please refer my earlier answer to similar question that is in Public Domain (in AllExperts)
Cheers/GTRao  

Satellite Communications

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TIRUMALA RAO G

Expertise

Satellite Communications Applications, Link Calculations, Teleports, Earth Stations,VSAT, Tracking, Mobile Communications, Next Generation Networks.

Experience

40 Years. Indian Space Research Organisation, PANAMSAT, Satellite Based VSAT Networks, IP Networks.

Organizations
ISRO, PANAMSAT, Engineering Institution for Higher Education (GVP College of Engineering), Consultancy.

Education/Credentials
Graduate in Electronics and Communication Engineering with Distinction. Guiding scholars for their Doctoral thesis in related areas in Academics.

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