[Elecraft] counter probe

Tue Oct 8 17:27:59 2002

Elecraft K2 Revison 2 Firmware instruction dated 28 August 2001 says on 
Page 4, step 7 under VFO Calibration:
"7. Move the K2 counter cable to BFO test point, TP2(or remove the cable
and store it).
  8. Re-install the top cover."
Maybe the experts will be able to give us the company position.
73 Dick W4RAK

----- Original Message -----
From: Ron D'Eau Claire <[email protected]>
Date: Tuesday, October 8, 2002 5:05 pm
Subject: RE: [Elecraft] counter probe

> If that's the case, George, please post your results on the reflector.
> It's one thing for the Elecraft guys to be concerned with the FCC 
> rulesto keep themselves from being shut down, but if the probe causes
> significant spurs in the output, it's simply not good practice to 
> leaveit in place at ANY power level. 
> 
> Most of the ops on this reflector know full well just how far a little
> r-f can go. 
> 
> It's one thing when a simple rig has some inherent spurs - like the
> little one-stage QRPp rigs. I don't have an issue with one of 
> those or a
> "boat anchor" that doesn't meet all the current spex. But it's 
> somethingelse entirely to radiate a spur simply because a test 
> probe that is not
> needed is left plugged in.
> 
> Ron (where did I put that screwdriver for the cover screws?) AC7AC
> K2 # 1289
> 
> 
> Thanks, Tom - I will do a very careful examination of the K2 output
> signal with this in mind.
> 
> TP2 in on the BFO signal line to the transmit mixer U10. So, I can
> appreciate that any lack of integrity in the shielding of the FCTR 
> probecable could allow other signals from the RF Board to be 
> picked up and
> introduced into the mixer input.
> 
> I find nothing in the manual about what to do with the probe after
> completing CAL FIL, but perhaps something has been posted on the list.
> 
> 73/72, George    
> Amateur Radio W5YR -  the Yellow Rose of Texas
> In the 57th year and it just keeps getting better!
> Fairview, TX 30 mi NE of Dallas in Collin county EM13qe
> K2 #489      Icom IC-765 #2349     Icom IC-756 PRO  #2121
> 
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