Thanks Ken,
I kind of like the loading coil cuz it keeps down the amount of wire in the
air..... neighbor and xyl concerns! But.... if I thought the L performance
would be better I'd go that way. Searching the web I found some comments from
folks that had used both the mk-160 trap/Inverted L solution and the loading
coil solution and they seemed to prefer the loading coil. But, the mk-160 trap
comes off the tower at about 25' up making a pretty short vertical section.
I'd like to figure out a way to get the vertical section up 40 to 50 feet...
still right next to the hy-tower though. Maybe based on one of the 43'
antennas that are all over these days. In that case I wouldn't be surprised if
the L would perform better then the loading coil.
Gary Slagel
N0SXX
http://marina.fortunecity.com/sanpedro/351
________________________________
From: WA8JXM <wa8jxm@gmail.com>
To: Gary Slagel <gdslagel@yahoo.com>
Cc: towertalk@contesting.com
Sent: Thursday, November 17, 2011 8:21 AM
Subject: Re: [TowerTalk] Hy-tower Vertical with 160M Vertical next to it
That should work out pretty well. I have had the same thoughts about a
Hy-Tower if I ever got one.
No problem sharing the radial field. If possible you might increase the field,
it can only help, especially on 160.
I would go the inverted L direction. If you were just going to run a short
wire next to the Hy-Tower and use a base loading coil, I wouldn't bother with
the additional wire, IIRC, Hygain has a 160m loading coil for the Hy-Tower.
But the inverted L would be a much better solution IMO.
Ken
On Nov 17, 2011, at 10:13 AM, Gary Slagel wrote:
> I've got a Hygain Hy-tower that I use primarily for 80M but it also loads
> nicely on 10 thru 40. I'm thinking of running a 160M vertical up the side of
> the hy-tower, supported by the hytower but spaced 6 to 12 inches away.
> Insulated from the tower of couse. The 160 vertical will be either an
> inverted L or something with a loading coil somewhere near the center. I'll
> use the same radial field I"m using with the hy-tower and feed it via a
> remote antenna switch... MFJ-4712 switch or something like that.
>
> Is this worth experimenting with? In particular I'm wondering
> 1) is there is a problem sharing the radial field and also
> 2) do I risk messing up the performance of the hy-tower on 80M. It
>seems to work well now.
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