Everything in the shack is grounded to an aluminum bus bar across the
back of the operating table which is tied with #6 solid copper to the
same point as the tower and AC Main grounds.
Just for reference, the antenna is a 260ft OCF Inverted Vee at 75 ft
using a Balun Designs #4115ocf 4:1/Choke combination balun. Coax shield
is grounded at the top and bottom of the tower.
Glenn - KD0Q
On 12/30/2013 13:54, Jim Miller wrote:
Do you have coomon mode chokes on you feed lines?
Jim ab3cv
On Dec 30, 2013, at 1:29 PM, Bill W2BLC <[email protected]> wrote:
In regards to proper grounding etc.: I think it is safe to say that K3 owners
have a very good grasp of what is needed to construct and operate a proper
station - safety and RF wise.
I do, yet still went back over every last connector/connection/lug, etc.
Everything is locked down properly here. No baluns, good coax, and everything
is mechanical and soldered along the entire antenna routes. Yet, the problem
continues. Perhaps the most disconcerting part is that my other auto
tuners/rigs do not exhibit this difficulty. Perhaps the KAT500 is seeing
something the others do not.
The difficult part is never knowing when the tuner will take off and the fact that MANUAL
selection does not appear to make any difference. I have been using MANUAL for a couple
of months. I do not see that it has made any difference in occurrences. The instances of
"run-away" are random and it is usually days between events.
Bill W2BLC K-Line
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