[TowerTalk] Vertical Mounting
Mahlon Haunschild
mahlonhaunschild at cox.net
Sun Nov 9 12:51:51 EST 2003
Doug,
Assuming that your "swamp" is generally in the clear of everything else,
and given your soil conditions, ground mount that sucker & lay down a
reasonable number of non-resonant radials. By the way, by "ground
mount" I mean position the feed no more than six inches above the ground.
I experimented with an elevated HF6V a number of years ago. The antenna
feed was 10 feet in the air & I used four resonant radials, per the
Butternut design in the antenna's instructions. It's tuning and
performance were appalling & definitely not worth the effort I put into it.
Unless you can "droop" the radials to provide a better 50 ohm match for
an elevated vertical I can't see any reason to not ground mount it.
regards,
Mahlon - K4OQ
Doug Rehman wrote:
> I'm cleaning up a Butternut HF6V with 17m & 12m add-ons that has been out of
> service for about 10 years. I'm trying to decide how to mount it and what to
> do for radials. The area that is will be mounted in is very moist year
> round.
>
> Any advice on whether it would be better to mount it a few feet above ground
> or if there would be a significant improvement in mounting it about 15' up?
>
> Would I be better off with resonant radials or random length radials (ie:
> convenient length for terrain obstructions)? How many? (I'm not looking for
> a near theoretically perfect system, just a good alternative, for the higher
> bands, to my 500' Windom until I can get my towers up.)
>
> Thanks,
> Doug
> K4DDR
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