I have the same problem and find it very distracting. I also have found that
there are additional false artifacts above and below the vfo frequency that
move in sync with any change in vfo frequency.
John K7JLT
David Patino d...@onitap.com wrote:
Howdy All,
So on my PX3 I'm seeing the issue listed in the manual as Dip in Spectral
Response Close to VFO Frequency. Described as:
I/Q demodulation at baseband (used by the PX3 and many SDR applications) may
introduce small, very narrow-band amplitude variations in the response close
to the carrier. This effect varies with operating mode and usually has no
effect on operation. In CW mode the artifact can be moved by switching to CW
reverse mode (ALT switch on KX3). Setting RX Shift to 8.0 rather than NOR in
the KX3 menu may also vary to location of the artifact.
Here's a screen cap of my PX3 with span set to just 2kHz in CW mode. The dip
is 600hz above the VFO freq (CW pitch is set to 600Hz).
This exaggerates the issue but it's visible at any spans at and below 50khz.
http://i.imgur.com/p1i29Ul.jpg
Other than just moving it as the manual suggests, anyone know of any way to
decrease the dip, or remove it entirely?
73, David
N9PBJ
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