I agree. That is why I went with Rohn 25G for mine.
NJ0F
Sent from my iPhone
> On Nov 11, 2017, at 11:38 AM, <john@kk9a.com> <john@kk9a.com> wrote:
>
> I find it hard to believe that using wire vertical instead of a freestanding
> aluminum vertical with maybe a 1/2 diameter top section or even a solid 3"
> irrigation pipe will make enough bandwidth difference to be concerned about.
>
>
> John KK9A
>
>
> To: towertalk@contesting.com
> Subject: [TowerTalk] 4 square advice
> From: Bill via TowerTalk <towertalk@contesting.com>
> Reply-to: cqtestk4xs@aol.com
> Date: Fri, 10 Nov 2017 20:51:15 -0500
>
> I'm starting construction of my wire 4 square for 80 meters.
>
> I know the bigger the diameter is (like having Rohn 25 tower for the
> radiator)
> the better the bandwidth.
> I'm using #12 insulated wire, but in an effort to enhance bandwidth I'm
> planning using two wires joined at the top and at the feedpoint for each
> element. To space them I'm using some old KLM diamond shaped spacers every
>
> five feet or so to keep the two wires approximately 5 or 6 inches from each
> other...running the wires parallel to each other.
>
> Any thoughts as to how helpful this will be in increasing bandwidth? I have
>
> about 45 of these spacers and they're just gathering dust, and they are
> lightweight, UV resistant and free. Also, any thoughts as to how this might
>
> affect the impedance etc.?
>
> Bill K4XS/KH7XS
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|