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[CQ-Contest] Filter???????

To: <cq-contest@contesting.com>
Subject: [CQ-Contest] Filter???????
From: "Tony Rogozinski" <trogo@telegraphy.com>
Date: Sun, 14 Jan 2007 08:10:39 -0500
List-post: <mailto:cq-contest@contesting.com>
I've noticed something for years and just wonder if anyone else has the same 
experience?  This morning I was copying
OH6AH on 40M LP but he was pretty weak and the background noise made it a 
little difficult.  The speaker was on and
I needed to go downstairs to get something - as I descended the stairs it 
seemed like a filter was switched in by my
brain and all the background noise went away leaving only the signal.  Just 
like a nifty audio filter.  In years gone by
I have noticed this many times but never asked anyone about the phenomenon.  In 
Arizona I would be working in the
yard maybe 100' away from the shack, the window would be open and radio on and 
I could copy weak signals without
any problem.

Comments?????

Tony W4OI/HK1AR
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