K3 and CW-Skimmer

[Dick-2]

Considering adding CW-K to the mix. Any issues in implementation? I have
the K3 connected to the PC via the KUSB and that is working OK. Looks
like I need only to provide a stereo cable for the audio channel to the
PC. Am I missing anything?

TIA,  Dick

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[Bill W4ZV]

Dick wrote

Considering adding CW-K to the mix. Any issues in implementation? I have
the K3 connected to the PC via the KUSB and that is working OK. Looks
like I need only to provide a stereo cable for the audio channel to the
PC. Am I missing anything?

K3 > KXV3A > IF OUT > LP-PAN > audio cables > decent soundcard (probably not what's in your PC's motherboard) > 3 GHz P4 > CW Skimmer software.  See soundcard details here:

http://www.telepostinc.com/soundcards.html

CW Skimmer is fairly straightforward by itself...you don't need (IMHO) want PowerSDR, HRD etc. to make it work.  However Skimmer is limited to 24 kHz BW (Softrock on IF mode) centered on the K3's VFOA (which drives IF OUT), but this also means you won't need more than a 96 kHz soundcard.  I have yet to feel 24 kHz is a limitation for S&P in contests or split pileups since it is always tracking VFO A.  

For split pileups with the KRX3 I tune VFO B to the DX station and TX on VFO A so Skimmer is tracking my TX frequency and will show "599" stations anywhere within +/- 12 kHz of my TX frequency.  Then you can click on Skimmer's "599" and send VFO A (your TX frequency) to the last station worked.

73,  Bill

[Jim Campbell]

I have CW Skimmer set up to use with my K2. It wasn't working very good;
the signals were weak and when I tuned the K2 the signals on CW Skimmer
were moving in the wrong direction. After some analysis I decided that I
was seeing the image side of the display. I was able to rectify this
problem by using negative numbers for the "CW Pitch, Hz" and the "Audio
IF, Hz" entries. In addition, I was able to see more of the spectrum by
using the "Softrock-IF" hardware type instead of the "3-kHz Radio"
hardware type.

I suspect that the above would also apply to the K3's use of CW Skimmer.

72,

Jim - W4BQP
K2 #2268


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