[NJARC] Antenna Balun

[Al Klase]

Scott,

For reference, go here http://www.skywaves.ar88.net/ANTENNA/antsys.htm 
and open the "BALUNS" .pdf in the "Updated Info" box.

I'd start with the 9:1 "UN UN" as you're working with an antenna of a 
random nature.  Of course connect the antenna to the top, the cable 
shield to the bottom, and the center conductor to the low-Z tap.

As a further elaboration, if there's a ground near the feed point of the 
antenna, you can try isolating the cable shield from the antenna by 
adding a 1:1 current balun between the 1:9 and the cable.  See the upper 
drawing under "Balun Applications"  This keeps noise picked up inside 
the house by the cable shiewld from being applied to the antenna.

Al

Scott Roberts wrote:
> Visit our web site - See http://www.njarc.org
> _______________________________________________
> This is mainly addressed towards Al, but I thought I'd
> send it out in case anyone else has any ideas.
>
> Al-
> I am getting ready to throw together a quick end feed
> Slinky antenna, and was wondering which of your
> Skywave or broadband transformer set ups would be best
>  for what I want to do. This will be a temporary
> setup, and I am hoping to set up something quick. I
> plan to use RG-6 or RG-58 for the line in, and use it
> just for receiving. I have printouts of the designs,
> but am not sure which I should use. Slide 9 from your
> demonstration the other month looks like what I'd like
> to do for this, but I am not sure which design would
> comprise the 4:1 balun shown.
>
> Later I intend to build a better setup.
>
> Scott
>
>
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-- 
Al Klase - N3FRQ 
Flemington, NJ 
http://www.skywaves.ar88.net/