[Elecraft] KAT-100

[Don Wilhelm]

Stan,

The real cure for such RF Problems is to work on the antenna system - those
electrons can flow in unexpected ways.

One way to tame RF-in-the-shack is to use counterpoise wires.  Cut one for
each troublesome band - an electrical quarter wavelength long - the far end
is connected to nothing, but be certain it is insulated and away from
contact with humans, pets, etc. because it will have a high RF voltage
present at that end.  The near end attaches to the ground screw on the
tuner.

This wire presents a good RF ground at the tuner, and is so easy that it is
worth a try if you have a problem - it doesn't have to run straight, but
twists and bends may alter the electrical length a bit.  It is a good RF
Ground solution for those who must operate from a second story or otherwise
must use a long connection to an earth safety ground.

73,
Don W3FPR

> -----Original Message-----
>
> 	Finished my KAT-100-1 last night. Seems to be working FB. I get a
> little RF in to it on 40m, and it causes the K2 to reset. Read the tips in
> trouble shooting about how to cure that. It works fine on 40 if I cut the
> power back to 5 watts or so.
>
> 	Great kit. Went together quickly. Not too many moving parts to this
> one. Hi hi.
>
> Stan Rife
> W5EWA
>