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Re: [TowerTalk] 1 dB difference

To: "" <>
Subject: Re: [TowerTalk] 1 dB difference
From: "Jim Brown" <>
Reply-to: Jim Brown <>
Date: Tue, 15 May 2007 14:48:46 -0700
List-post: <>
On Tue, 15 May 2007 22:21:20 +0200, Peter Voelpel wrote:

>The 1db difference will not be noticeable.

Let's clarify what we're talking about. If we make a change in the
loudness of a sound sitting FAR above the level of other sounds, 1 dB
is approximately the change that most people will just hear. 


Put that sound within 10 dB of other sounds (like noise, QRM, or even a
musical performance) and a 1 dB change can be HUGE.  It has NOTHING to
do with whether it is VHF, HF, or the sound in a room. It relates
entirely to the ability  of our brains to separate one sound from

Jim Brown K9YC


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