[Elecraft] Amplifiers in general

[Bill Frantz]

A group of about 5 of my friends and I noticed this effect at a 
early 1970s Grateful Dead concert at the San Francisco Cow 
Palace. They were testing a new sound system which came to be 
called "The Wall of Sound". While the music was definitely loud, 
very loud, we could have a normal conversation with each other, 
something we had never been able to do at other concerts. We 
concluded that the very low harmonic and IMD distortions of the 
sound system made it easier to decode the (undistorted) acoustic speech.

This experience makes me very interested in the level of audio 
distortion in amateur radio audio chains. The 10% quoted for HTs 
is much too much for optimum copy. Copy is better if the audio 
chains are hifi quality for distortion.

73 Bill AE6JV

On 12/31/16 at 11:51 AM, cautery at montac.com (Clay Autery) wrote:

>I submit that all "noise" is not equal.  I'm guessing that you can hear
>a radio transmission mathematically below the apparent  noise level
>because it is "atypical" or "organized noise" as opposed to the "noise"
>in the S2 noise floor which is "disorganized".
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