[Elecraft] kx3 px3

[Don Wilhelm]

Fred,

See the PX3 manual page 16 "Adjusting the Amplitude".
First set the bottom of the spectrum display so the band noise level (or 
receiver noise floor) is at the bottom (REF).

Then set SCALE to adjust the vertical gain.
I think it is best to ignore the S-x amplitude and set SCALE so the 
strongest signals are near the top of the display.  You can easily see 
the relative strength of the various signals.  For me the vertical scale 
is more useful when displaying dBm rather than S-units.

73,
Don W3FPR


On 4/1/2017 6:38 PM, Fred Moore wrote:
> Anyone have any thoughts on getting the scale on the px3 to match the
> s-meter on the kx3..
>
> when the kx3 is showing a s9 signal the px3 is showing about s6..   3
> s-units..
>
> I have the pre-amp set to 20db, with a precision HP signal generator a
> 50mv signal does read S9 on the KX3 like it should, the px3 reads about
> 3 S units lower..
>
> All cables are secure, and are the supplied cables between the kx3, and px3
>
> Scale and Reference do not effect the delta between the readings..
>
> surely there must be an adjustment I am missing in the PX3
>
> This is a new PX3 built it yesterday morning, everything else works
> properly..  ?????
>
> latest firmware KX3 and PX3
>
> Regards.. Fred
>
>