From: Caitlyn Martin <caitlynmaire@earthlink.net>
To: "Simmons, Reid W" <reid.w.simmons@intel.com>
Copies to: TenTec@contesting.com
Subject: Re: [TenTec] Orion power output
Date sent: Mon, 18 Mar 2002 15:40:36 -0500
> Hi, Reid, and everyone else,
>
> > I also question the need for the extra 50 watts. I believe it takes
> > a 3dB increase to be detectable by the human ear, and about 6 dB to
> > equal one 'S' unit increase. So, 150 vs 100 watts is mostly
> > marketing/advertising hype with virtually no benefit to the user -
> > but a slight benefit to the power company :-).
>
> Thank you. That verifies what I thought I knew to be true.
One dB (not 3dB) is the smallest level increase recognized by the
human ear, whatever that means. This applies to only a single tone
with no noise or interference.
The one dB rule does NOT apply to signals in noise or interference.
When a signal is in noise or interference, one dB can make a
HUGE difference in readability.
73, Tom W8JI
W8JI@contesting.com
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