P3 Ref LVL and SCALE? Means What?

[KM4VX]

I am trying to understand what these terms mean, and having read the related posts still can't figure out what they mean or what settings to use. I want the P3 to reflect cw signals and sometimes ssb signals within a given span (say plus and minus 75). I have no idea what the db signals to he left reflect because they can't reflect receiving signals at that db level can they? (-100? -50? ??) I think ELECRAFT should include a description in the owner's manual of what the terms mean and make some suggestions of what settings to use. The art of scientific prose is to be able to articulate the complex so the masses may understand. Also, a default setting  is always appreciated. Many thanks. Ron

[Bob Cunnings NW8L]

The scale on the left (in dBm) does indeed reflect receive signal strength, see:

http://en.wikipedia.org/wiki/S_meter

where the relationship between nominal S meter readings and receive
signal strength in dBm is explained.

Bob NW8L

On Wed, Sep 22, 2010 at 7:19 AM, KM4VX <[hidden email]> wrote:

>
> I am trying to understand what these terms mean, and having read the related
> posts still can't figure out what they mean or what settings to use. I want
> the P3 to reflect cw signals and sometimes ssb signals within a given span
> (say plus and minus 75). I have no idea what the db signals to he left
> reflect because they can't reflect receiving signals at that db level can
> they? (-100? -50? ??) I think ELECRAFT should include a description in the
> owner's manual of what the terms mean and make some suggestions of what
> settings to use. The art of scientific prose is to be able to articulate the
> complex so the masses may understand. Also, a default setting  is always
> appreciated. Many thanks. Ron
> --
> View this message in context: http://elecraft.365791.n2.nabble.com/P3-Ref-LVL-and-SCALE-Means-What-tp5559048p5559048.html
> Sent from the Elecraft mailing list archive at Nabble.com.
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