[Hallicrafters] Antenna info ?

[rdhalste]

You might consider a fine "Scotch Brite" pad They conform mor easily to the
shape of what ever you are sanding, or polishing.  I use them for virtually
all my antenna work now.

You can find them at Lowes, or other building supply stores as well as
hardware stores, relatively inexpensive.

They come in textures from those for grinding rust off cast iron to
polishing Aluminum, or Copper.

Roger (K8RI EN73)
WWW.RogerHalstead.com
N833R, World's Oldest Debonair? S#CD-2

> Dear Phil
> I also have a 6btv and my antenna has done the same thing. Except on
> rainy days then it loads good. I suspect that the joints have become
> corroded. I intend to take it apart this summer and polish all the
> connections between the sections. Use very fine sand paper or steel
> wool. I should replace the coax because it may have water in by now.
> Let us know what "you" find is your problem. There are a lot of those
> antennas in use. You can fudge the tuning by moving the traps a little
> bit because the company told me so.
> 73 rick
> wa8ylz
>
>
> Phil Atchley wrote:
> >
> > Hello
> > This is indirectly related to Hallicrafters as this antenna IS used for
> > receiving on the 5R10A and (future) SX-71.  I don't belong to the
antenna
> > reflector and I figure there are some good gurus on this list.
> >
> > I have a Hustler 6BTV vertical that was put up a little over 2 years ago
and
> > performed flawlessly for a couple years.  (it is over  > 1000 Sq/ft of
> > sheetmetal roof/awning.)  The unit was guyed (per Hustlers instructions)
at
> > the 20M trap, especially as we get some good winds here.  I used some
Nylon
> > Twine as the guys, it is still holding well so it didn't "sun rot".
> >
> > It has since developed problems, high SWR's Especially on bands below
20M
> > and I suspect that the outer sleeve on the 20M trap 'may' have slipped
down
> > some from the constant downward  pressure of the guys, detuning the
trap.
> > (the various tubing sections were all secured against slipping by
setscrews
> > after it was tuned).  Does this sound feasable?  While up there I intend
to
> > replace all the coax from antenna to the antenna switch in the shack as
> > insurance.  (I use RG8X as I don't run any 'power' over about 100W
maximum).
> > I want to do EVERYTHING in one trip to the roof as I don't want to walk
on
> > the mobile roof more than needed.  My wife says she can tell exactly
where I
> > am by looking at the ceiling  sag 8^(
> >
> > My present (best) SWR's are
> >
> > 29.7   2.0 (10M is about as it was, I didn't wish to cut tubing)
> > 28.0   1.3
> > 21.3   2.0 (never had a really good SWR but was much better)
> > 14.35 1.8
> > 14.1   1.4   (Was tuned to Phone band)
> > 10.15 2.0   (Was 1.5 at 10.1MHz)
> > 10.0   1.2
> > 7.1     2.0   (was tuned to 7050)
> > 6.97   1.3
> > 3.67   2.4   (was 1.4 at 3.908 net freq)
> >
> > If the trap is detuned, any hints on getting that sleeve in the right
spot
> > again?  I don't have a grid dip meter.  Also, I never had to tune a trap
> > before, how critical are these Hustler traps.  Any ideas?
> >
> > 73 de Phil  KO6BB
> > Loving home provided for wayward Boatanchor Receivers
> > ko6bb at elite.net
> > Merced, Central California
> > 37.18N 120.29W CM97sh
>
> --
> Rick Smedberg WA8YLZ
> P.O. Box 148 Custer, MI 49405
> smedberg at t-one.net
> http://www.t-one.net/~smedberg
> Grid Square EN63vw
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