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Anonymous Poster	Need a Circuit 01/08/2007 8:14 AM
	I am a students of B-TECH 3rd year students in Electronics And Communication. I want know how does a analog satellite receiver is catched the digital signal. I have dish antenna, LMB and analog receivers etc. I want that my analog receivers catched the digital signals(ex :- B4U,Etv and other digital channels) So any circuit and information can solve my problem, Please sent my email address soon. My email address is:- swmk.das@gmail.com
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Electroman Guru Join Date: Jul 2006 Location: Dunstable, England Posts: 2821 Good Answers: 45	#1 Re: Need a Circuit 01/08/2007 10:15 AM
	As the signal from a satelite is so small it will need analogue amplifiers to make it large enough to use... Also as the frequency is so high, about 2 GHz I think, you will need a couple of local oscillators and mixers with if strips to bring the signal down to a frequency that is selective and able to be used... So there is your block diagram so you just need to design it or buy a ready made one... John. __________________ A little knowledge is a dangerous thing - Googling is far worse!
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aurizon Guru Join Date: Jun 2006 Location: Toronto Posts: 3968 Good Answers: 120	#2 Re: Need a Circuit 01/09/2007 12:23 AM
	What yu need to understand is the modulation of a signal with digital data and the subsequent recovery of that signal, demodulation. So explore these liinks and cistomoze the search by minusing terms and plussing others http://www.google.ca/search?hl=en&safe=off&q=%22digital+modulation%22&btnG=Search http://www.google.ca/search?hl=en&q=%22digital+demodulation%22&btnG=Google+Search __________________ Per Ardua Ad Astra
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You might be interested in: Digital-to-Analog Converters, Magnetic Receivers

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