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Subject:  [TowerTalk] Coax Loss 
From:  "Wilson Lamb" <infomet@embarqmail.com> 
Replyto:  Wilson Lamb <infomet@embarqmail.com>, "Tower and HF antenna construction topics." <towertalk@contesting.com> 
Date:  Thu, 4 Feb 2010 14:06:59 0500 
Listpost:  <towertalk@contesting.com">mailto:towertalk@contesting.com> 
This might be a little easier if we remember that the dB expression refers to a multiplication. 10 dB loss means you multiply by 0.1. Thinking of it this way, and remembering that multiplication is accomplished by adding exponents (10^2 X 10^2=10^4), it's pretty easy to visualize that if we multiply by 0.1 on the first 100 ft, then we do it again on the second, 0.1 X 0.1=0.01, or down 20dB. Wilson W4BOH _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk 
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