Re:Delta Switch & Hexbeam

[Bob Follett]

Steve, Stuart, and Gang:

I have a Hexbeam, fed with RG213 into a Delta switch at three locations so far...

Stuart is on the right track, RF on the coax, but looking at the wrong Internet source.  The Hexbeam group at Yahoo covers it all, and the 'current choke' issue has been such a common thread, that the solution is mentioned in the Home Page of the group. Quote:

" 6 Amidon FB-77-1024 beads side over RG-213 and can be held in place with heat shrink"

Not mentioned on the home page, is to make sure the coax from the top of the Hexbeam is routed down the 'cold' side of the center support (in the manual), and the beads are located just below the antenna mounting plate.  

That said, my Hexbeam is totally un-fussy, through the switch, No tuner -- straight into an Ameritron 80B amp (sometimes on--sometimes off  :-)  Now about that Elecraft amp....

73, Bob
AB7ST
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[Bill Coleman-2]

On Apr 22, 2005, at 11:10 AM, Bob Follett wrote:

> Stuart is on the right track, RF on the coax, but looking at the wrong
> Internet source.  The Hexbeam group at Yahoo covers it all, and the
> 'current choke' issue has been such a common thread, that the solution
> is mentioned in the Home Page of the group. Quote:
>
> " 6 Amidon FB-77-1024 beads side over RG-213 and can be held in place
> with heat shrink"

Heck, you don't even need the heat shrink. A wire tie or two on each
end keeps them secure to the coax so they don't slide.

I currently have 10 of these beads choking the coax to my A3S. I used
10 beads because I intend to add the A743 40m kit eventually and needed
the extra impedance on 40m.

Bill Coleman, AA4LR, PP-ASEL        Mail: [hidden email]
Quote: "Not within a thousand years will man ever fly!"
             -- Wilbur Wright, 1901

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[Geoffrey Mackenzie-Kennedy-2]

Morning Bill,

> Heck, you don't even need the heat shrink. A wire tie or two on each
> end keeps them secure to the coax so they don't slide.
>
> I currently have 10 of these beads choking the coax to my A3S. I used
> 10 beads because I intend to add the A743 40m kit eventually and needed
> the extra impedance on 40m.


Then you don't have inquisitive pigeons having a look or something?   "Cover
everything" is the spec here!

73,
Geoff
GM4ESD.

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