[TenTec] TenTec Digest, Vol 56, Issue 9

Paul Gates, KD3JF pearly732003 at yahoo.com
Wed Aug 8 05:32:46 EDT 2007


You are correct... Some of us do not have $10,000 dollars
to spend for a  tower, or pole, ground system and Steppir
installed.

Paul Gates, KD3JF
--- Ken Brown <ken.d.brown at hawaiiantel.net> wrote:

> No doubt that Steppir antennas are really nice, and they
> can be adjusted 
> for super low SWR on the line to the antenna, not just
> between a tuner 
> and the  rig.  That is really neat, and I'd love to have
> one myself. 
> However, it is not necessary to have a Steppir or other
> remotely tunable 
> system, or a multiple resonance antenna (such as one with
> traps or 
> resonant stubs or coils as with Gap or Butternut) in
> order to have high 
> efficiency on several bands. A plain vertical can be
> tuned (with a tuner 
> in the shack) to work  efficiently over greater than an
> octave (like say 
> 60, 40, 30 and 20 meters) .
> 
> You don't have to spend a lot of money to have an
> efficient antenna. In 
> fact the cheapest simplest homebrew antennas are often
> more efficient 
> than the expensive, ready built (some assembly required)
> ones that have 
> moving parts, coils and other do-dads on them.
> 
> N6KB
> 
>  CATFISHTWO at aol.com wrote:
> >  
> > in a word... Steppir
> >  
> > I have a 3 ele steppir 6-20 m beam and I love it. it is
> a perfect antenna  on 
> > every frequency. no tuner needed. they make beams up to
> 40m and a couple of  
> > verts up to 80 meters. 
> >  
> > worth every penny       tom N6AJR
> >  
> >  
> >  
> >
>
==========================================================
> >  
> > In a message dated 8/7/2007 9:01:29 A.M. Pacific
> Daylight Time,  
> > tentec-request at contesting.com writes:
> >
> > Alan,  absolutely a great post, and well said.  You are
> right on the money!  
> > Effective power is the key.  An improved or efficient
> antenna is the  lowest 
> > cost route to effective radiated power.
> >
> > A point was made in  the QRP forum at the local ham
> convention Sat.   Even if 
> > you are  using one of the shortened antennas, you still
> have to keep the high 
> >  
> > voltage ends well away from conductors and screening
> foliage, or other  
> > detriments to the high near field levels.
> >
> > And the high current  magnetic field concentration near
> the feed point should 
> > also be protected  from coupling to conductors.
> >
> > A dipole can be shortened to 60 per cent  of full
> length and maintain 
> > efficiency in the greater than 90 per  cent
> > value.  You just have to have it in the clear of
> detractors from  its field. 
> > Low profile antennas like the Moxon rectangles can
> provide beam  performance 
> > in less than traditional Yagi dimensions.  Use of low 
> loss insulators, 
> > conductors,  and fasteners is key to small antenna 
> use.
> >
> > An easily elevated small beam may be the answer for
> aging  hams.  The masts 
> > from Force 12 that were marketed for portable use  come
> to mind.  Motorizing 
> > such an elevating cable for that mast might  be fairly
> simple.
> >
> >
> >
> >
> >
> >
> >
> > ************************************** Get a sneak peek
> of the all-new AOL at 
> > http://discover.aol.com/memed/aolcom30tour
> > _______________________________________________
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> > TenTec at contesting.com
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> >
> >   
> 
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