Re: Cal Range Question

["Sandy Perle" <sandyfl@earthlink.net>]

You should always verify what the vendor, or calibration service 
provides you. Never trust what you haven't verified yourself. Need to 
also consider temperature, humidity and barometric pressure 
corrections. You also should verify source uniformity .. especially 
if you are not unable to place your "detector" in exactly the same 
spot each time. Also check the width of the beam, and how that may 
affect you, at each of your distance settings. There are other things 
to do, but these are a few items to check.

Sandy Perle
E-Mail: sandyfl@earthlink.net 
Personal Website: http://www.geocities.com/capecanaveral/1205

"The object of opening the mind, as of opening 
the mouth, is to close it again on something solid"
              - G. K. Chesterton -
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