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How Much is a dB Worth?
It is very common practice to over specify the Quiet Zone performance requirements for an anechoic chamber. Very often, what is done is a person who is need of of a chamber contacts someone with a similar facility, often a supplier or a customer, and simply patterns their performance requirement after what the other guy has done. This often results in a chamber which is specified to a tighter performance requirement than is actually needed to perform the particular measurements required and can cost thousands of dollars more than is necessary.
