[Elecraft] K3 Harmonic Distortion
Mike Scott
mike at paxsen.com
Tue Sep 2 10:55:01 EDT 2008
>Anyway, the "noise/distortion" is still there coming out of the
headphone socket.
Berni, this is a technical group and as such we need hard data and not
subjective descriptions of what you hear coming out of the headphone jack. I
don't doubt that you are hearing something. There is very little I can do
with your description however.
Please download spectrum analysis software such as Spectrum Laboratory which
will give you a way to actually show us some hard data. This is freeware but
very capable and will allow you to show us something real. The HRD DM780 is
a great tool but it isn't designed to analyze harmonic distortion as you
can't measure signal amplitude levels.
Here is the download link for spectrum labs.
http://freenet-homepage.de/dl4yhf/spectra1.html#download
Also, you need to run the input to your sound card from your headphone out
jack and not line out if you want to discuss artifacts that you are hearing.
If you want to discuss artifacts you are seeing on a waterfall for data
modes then run the input to your sound card from the line out.
So far your discussion is about what you are hearing but your description of
waterfall effects is with line out. These are apples and oranges.
Mike Scott - AE6WA
Tarzana, CA (DM04 / near LA)
K3-100 #508/ KX1 #1311
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