Quiet Zone in Anechoic Chamber - CR4 Discussion Thread

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Maria84 Participant Join Date: Sep 2007 Posts: 1	Quiet Zone in Anechoic Chamber 09/04/2007 2:43 AM
	Hi, question is related to electromagnetic anechoic chamber for far field testing of antenna supporting frequency range of 1-10 GHz. I m unclear about the concept of Quiet Zone. First of all, what defines the quiet zone or test region? How to calculate the dimension of a quiet zone if the chamber's dimension is say 40ftx20ftx15ft? what determines the shape of quiet zone as I read that Quiet zone can be spherical, cylindrical or rectangular? I referred to "Electromagnetic anechoic chamber" by Leland H Hemming. Althought it is a good book but i couldnt find any thing related to the above questions. anyone ? Thanks in advance. Maria ~ What is man in nature? Nothing in comparison to Infinity Everything in comparison to Nothing -a mean between Nothing & Everything by Aristotle
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StandardsGuy Guru Join Date: Dec 2006 Location: North America, Earth Posts: 4528 Good Answers: 106	#1 Re: Quiet Zone in Anechoic Chamber 09/06/2007 10:44 PM
	"GWB > /dev/null" Please explain - it's driving me crazy! __________________ “I would rather have questions that can't be answered than answers that can't be questioned.” - Richard Feynman
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user-deleted-13 Guru Join Date: Sep 2006 Posts: 4513 Good Answers: 88	#2 In reply to #1 Re: Quiet Zone in Anechoic Chamber 09/06/2007 10:59 PM
	Okay. It's a political statement. Your sentiments may be different. GWB = George W. Bush > = Linux/Unix redirection operator /dev/null = Linux/Unix 'null' device used when redirecting the output of a program (or the contents of a file, although I don't know why anyone would do this) whose output (such as diagnostic or status messages) you wish to ignore. GWB > /dev/null = "Ignore everything GWB says," basically.
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