6K trips out at even lowest power

  • 1
  • Problem
  • Updated 5 years ago
  • Solved
Now that I have the low audio on receive taken care of...I find I have another problem.
I can't transmit.
Set the rig up for cw (my most commonly used mode)
Barefoot operation. Manual antenna switch between 5K and 6K. Same paddle, just unplugged from 5K and plugged into 6K.

I move the RF Power slider past 2 or 3, any attempt to send cw results in
the rig tripping out as if it had no antenna. Pulsating receive, and
only way to reset is with a hard power reset.
The same thing with SSB, key the mic with the power slider advanced even slightly and same result.
I'm open to suggestions.
I made one cw qso a few months back. Since then just used it to learn how to use all the receive functions.

I use DDUt and just switch between Legacy and Signature.
The 5K and 6K each have their own 50 amp (non switching) power supplies.

A slice indicates  Red ANT 1 2.4K  USB MIC 19, Comp (not used) and Mon @ 29.
(I have a manual switch that I use to switch the 5K or 6K to the antennas)

as always, please and thank you
Bill, W9OL

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Posted 5 years ago

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Photo of K2CM


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Had a similar problem with my F3K. 10w out was the best I could get. Traced it to RF feedback. Put split ferrite cores on all leads to cure it.

Similar problem with the F6 7K. A good earth ground and ferrite, split cores fixed it.
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I of course had considered that possibility. The rig now weighs 6 # more than it's manufactured weight. (kidding but close). None of my other rigs display rfi at the same rf level.
Been at this almost 50 years so have more than a passing experience with rfi.
I will of course continue to try to solve, and that includes more ferrites. (I have a big box of them in the desk drawer). :-)))
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Seems all fixed now. I went to garage and went through my box of heavy copper braid. Found one long enough with soldered lugs on each end.
Once I got that to the main copper strip mounted on the wall, it 'seems' my rfi is fixed.
Only tested barefoot, going to take a bit of planning to do all the braid routing so I run through the amp and tuner.

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