[Elecraft] K3 6M problem

[Stephen Prior]

Same thing happened to me about two years ago, and it was something burnt
out in the 8MHz trap.  Snipped out the offending component and all was fine
while I waited for a replacement from Elecraft.

Stephen G4SJP

On 1 July 2011 19:01, Joe Subich, W4TV <lists at subich.com> wrote:

>
> Normally I would tell you to connect your dummy load, enable the KAT3,
> tune into the dummy load then disable the tuner and try the antenna.
> However, I know there is an issue with the KAT3 finding the right match
> on 6 meters.
>
> Since you're seeing a high SWR after field day, inspect the KAT3
> carefully to see if the 8 MHz trap has been damaged (extended TX into
> a less than ideal load).  Damage to that trap will be most evident on
> six.
>
> 73,
>
>    ... Joe, W4TV
>
>
> On 7/1/2011 1:25 PM, James C. Hall, MD wrote:
> > The radio was used at the digital station, so RTTY was the active mode.
> 6M
> > was not used on this radio.
> >
> > Ron, yes, you are quite correct about the ATU - it does work on 6M. :) I
> > just never had to use it. Just for grins I switched in the ATU and could
> > only get 3.9:1 SWR. Taking the cable off the ANT connector and putting it
> on
> > my MFJ analyzer, it shows 1.3:1.
> >
> > Sigh ... Worked perfectly on 6M prior to taking it to FD.
> >
> > 73, Jamie
> > WB4YDL
> >
> > -----Original Message-----
> > From: Joe Subich, W4TV [mailto:lists at subich.com]
> > Sent: Friday, July 01, 2011 11:51 AM
> > To: James C. Hall, MD; Elecraft Reflector
> > Subject: Re: [Elecraft] K3 6M problem
> >
> >
> >
> > Jamie,
> >
> > Did the antenna selection on the K3 get toggled to ANT 1 for
> > six meters?  Remember the ATN1/ANT2 is stored on a per band
> > basis.  If the rig was used in 6 with ANT 1 at field day, it's
> > likely that ANT 1 is still selected!
> >
> > 73,
> >
> >      ... Joe, W4TV
> >
> >
> > On 7/1/2011 12:06 PM, James C. Hall, MD wrote:
> >> Hello:
> >>
> >>
> >>
> >> After returning my K3 back to the shack after Field Day, I have
> discovered
> >> that 6M no longer transmits with low SWR. I checked all the rear panel
> >> connections as it is interfaced through a microham MK2R+ and
> Stationmaster
> >> band decoder. However, I have the 6M antenna coax directly going to
> > Antenna
> >> 2 on the radio. Using an antenna analyzer, the antenna shows excellent
> > SWR.
> >> Using a dummy load to each antenna port, all bands shows good SWR except
> > 6M.
> >> I updated the firmware and cycled the power but I still have the HI SWR
> >> showing with 6M.
> >>
> >>
> >>
> >> I do have the PR6 pre-amp in line, but the problem is not receive.
> >>
> >>
> >>
> >> I'm stumped. Any help appreciated.
> >>
> >>
> >>
> >> 73, Jamie
> >>
> >> WB4YDL
> >>
> >>
> >
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