[Antennas] rf choke

[Ray Brown]

----- Original Message ----- 
From: "G B" <microsys at alltel.net>

> I am starting my 'monster' horizontal loop, about 3 wavelengths at 160M
> averaging about 70' high.

  THREE wavelengths... hmmm. There's a local ham that put up a 2 wave
at 80m antenna during Field Day, and it worked out quite well. I believe
that it was oriented in a square and it did well  I'm just trying to envision
what a 3-wavelength SkyWave would do.

> I am very concerned about the certainty of high induced voltages on the
> antenna during thunderstorms.  I have heard that I could add an rf choke
> across the open wire line junction up at the antenna end.
>
> I have never done this, and wonder what kind of choke would be
> appropriate for 160M thru 6M???

  I don't know about any choke that would bleed voltages down like that.
I don't remember for sure what my friend used, if it was a 1:1 or 4:1 balun
on the loop. I'd also think about a couple of PolyPhaser supressors. But
you're out of my league here...

                _Ray_        KBØSTN