The "matched antennas" are calibrated together and the antenna factors and
gains divided in half and then assigned to each - that's the matching part. 
Look at the math for the NSA calculation and it appears that these effects are
subtracted out.  

- Bill
Indecision may or may not be the problem.

--- On Mon, 12/1/08, Ken Javor <[email protected]> wrote:


        From: Ken Javor <[email protected]>
        Subject: Re: Site Attenuation
        To: "Untitled" <[email protected]>
        Date: Monday, December 1, 2008, 5:45 PM
        
        
        The normalized site attenuation calculation is based on matched antennas
        (identical gains and antenna factors).
         
        Ken Javor
        
        Phone: (256) 650-5261
        
        
        > From: <[email protected]>
        > Date: Mon, 1 Dec 2008 15:31:10 -0700
        > To: <[email protected]>
        > Conversation: Site Attenuation
        > Subject: Site Attenuation
        > 
        > I have a question for the group. I was told that I need matched 
antennas
        > to perform a site attenuation measurement. If that is true I would 
like
        > to know why. I was planning on using appropriate antennas that cover 
the
        > needed ranges, but they are not identical.
        > 
        > Thanks,
        > Cody
        > 
        > -
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