David -
I'd suggest the Palomar BA-8 current balun. This is similar to the ferrite
bead balun that N6BV seems to like and is shown in the ARRL Antenna
Handbook. It's simple, inexpensive, and you don't have worry about what's
going on inside some "black box".
73, Bob - W3YY
----- Original Message -----
From: "David Knepper" <cra@floodcity.net>
To: <towertalk@contesting.com>
Sent: Wednesday, December 24, 2003 12:18 PM
Subject: [TowerTalk] Baluns
> I would like to know how to construct a light weight balun for my Wilson
> beam (20,15,10 meters). Coax or ferrite?
>
> 1. How do I go about attaching the balun to the mast or boom? Where is
the
> best location?
>
> 2. How far away from the mast or boom should the balun be placed to avoid
> any detuning?
>
> 3. I have been told that PVC absorbs R.F.? Should I be using some other
> material to wind the coax on?
>
> 4. What type of coax should be used for if I am feeding the beam with 1
KW?
>
> 5. And, finally, should the balun be encased in some kind of waterproof
> container? What kind of?
>
> Thank you and Happy Holidays
>
> Dave, W3ST
> Secretary to the Collins Radio Association
> Publisher of the Collins Journal
> www.collinsra.com
>
> Dave, W3ST
> Secretary to the Collins Radio Association
> Publisher of the Collins Journal
> www.collinsra.com
>
> _______________________________________________
>
> See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|