[Elecraft] P3 Amplitude vs. K3S S-Meter

[Alan]

On SSB, the K3 S-meter measures the level of everything within the 2.7 
kHz bandwidth.  But on the P3, each display point only shows the power 
within a small fraction of 2.7 kHz.

For a continuous CW signal, the K3 and the P3 should match.  But for a 
signal that is spread out in frequency the K3 reads higher.

See the discussion in the P3 Owner's manual in the section "How to Set 
Up and Interpret the P3 Display", the paragraph that begins, "You would 
expect the S meter on the K3 and the signal on the P3 display to 
indicate the same level..."

Alan N1AL


On 10/19/2015 06:38 PM, David Ahrendts wrote:
> Noticeable difference between the K3S S-Meter level and the displayed
> S-level on the P3. An S-9 signal on the K3S is seen as much less,
> maybe an S-3 on the P3. So its not REF LVL, not SPAN. What?
>
> David A., KC0XT, LA
>
>
>
> David Ahrendts   davidahrendts at me.com
>
>
>
>
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