[TowerTalk] Balun for 40-2CD

[James Sawyer]

I used a RF choke using 6  turns of RG 214 around a 4 inch black PVC drain pipe.    It replace a RF choke made of the same but just coiled without the coil form.    I think that it has a better side lobe notch as well as have a better band width.   That is 1.7 :1 at 7 to 1.7:1 a 7.220.   With the tuner it works great all band.

Jim

-----Original Message-----
From:	Dick Flanagan [SMTP:dick@libelle.com]
Sent:	Wednesday, September 22, 1999 10:30 PM
To:	Tower-Talk Reflector
Subject:	Re: [TowerTalk] Balun for 40-2CD


>I read several posts that stated they used the W2DU beam balun on the 40-2CD.
>I was wondering what experiences people have had with this type balun.  I
>have always just used a coax wound balun on all my yagis as I have looked at
>baluns as an additional point of failure of an antenna system. Where I have
>never had a coax wound balun fail I have been involved at several times where
>the balun was the failed part on the system.

I use the Unidilla W2DU beam balun with my 40-2CD and no problem
running 1500 watts.

>BTW I bought W6QHS's book on yagis and plan on strengthening the 40-2CD to
>the 100 MPH spec 40-2CD+.  Someone mentioned W9RE having a kit for this.
>Anyone know the cost and how to get a hold of him.

Michael Wetzel <w9re@worldnet.att.net>

When I bought my 100 mph kit from him, it was $200 shipped.

You can see pix of the antenna installation at
http://www.qsl.net/w6old/antenna.html

Good luck!

73, Dick

--
Dick Flanagan W6OLD CFII Minden, Nevada DM09db (South of Reno)
Visit http://www.qsl.net/cvrc/



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