[Elecraft] Weird K2 tuning thing (hand capacitance)

TJ Campie tom.campie at gmail.com
Wed May 4 20:46:50 EDT 2011


Thanks Don - I did not build my K2 but I checked L33 and it looks good. It seems the problem is more prominent when I push on the top cover anyway, which makes me think that L33 isn't the problem. Are there any specific components in the front left of the RF board I should look for specifically for bad solder joints?

-- 
TJ Campie, w0ea
On Wednesday, May 4, 2011 at 7:16 PM, Don Wilhelm wrote: 
>  TJ,
> 
> That is indeed weird behavior for the K2. I would suspect a solder 
> connection problem somewhere inside the K2.
> 
> If not a solder problem --
> Did you flush cut the leads below the BFO inductor L33? If not, the 
> toroid may be sitting too high and contacting the bottom cover. And did 
> you put tape on the bottom cover where L33 is located to assure that the 
> toroid cannot make contact with the bottom cover?
> 
> 73,
> Don W3FPR
> 
> On 5/4/2011 7:50 PM, TJ Campie wrote:
> > Something seems weird with my K2 - when I put my hand near the front left of the face the frequency of signals on the band swing around wildly (sometimes I can get the signal to go outside of a 500 hz passband). Sometimes it settles back down to where it was before but sometimes not. It also happens if I push on the top of the cover on the top left too. I'm not sure if its a shielding issue or what but I took the cover off and stuck my hand in that corner and could not get it to act up until I put the cover back on.
> > I couldn't find anything in the manual about this type of behavior so hopefully somebody on the list knows of a way to fix this as it is getting a bit annoying.
> > Thanks! 73 de W0EA
> > TJ
> > ______________________________________________________________
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:Elecraft at mailman.qth.net
> > 
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> 


More information about the Elecraft mailing list