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[TowerTalk] Coax Loss

To: <>
Subject: [TowerTalk] Coax Loss
From: "Wilson Lamb" <>
Reply-to: Wilson Lamb <>, "Tower and HF antenna construction topics." <>
Date: Thu, 4 Feb 2010 14:06:59 -0500
List-post: <">>
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.



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