Towertalk
[Top] [All Lists]

[Towertalk] rotatable dipole

To: <towertalk@contesting.com>
Subject: [Towertalk] rotatable dipole
From: k5ya@gvtc.com (Dennis Mowers)
Date: Sat, 26 Oct 2002 09:12:17 -0500
That's true--I have a homebrew 30/40, with the traps 24 ft from mast,
and the total length is 60 ft.

I started out building a 30M only, then decided it would be nice to have
another 40M antenna mounted 90 degrees from my 40M beam.  Instant 90 deg
switching with a pushbutton switch, or run them both for a big footprint
on 40. 

Had to try it when I found that adding 40M only required another 6 ft of
tube on each side of the 30M dipole.

73, K5YA







n4kg@juno.com wrote:
> 
> AH, yes, a dipole that covers BOTH 30 and 40M gets a bit tricky.
> 
> The usual trap isolator would require a FULL SIZE dipole on 30M
> which is ~50 ft plus extensions for 40M, making it nearly full size
> on 40M which is mechanically 'challenging'.
> 
> I like the Cushcraft 40M elements over linear loaded elements.
> A CC D40 stacked with a D3W for the WARC bands might be
> a good solution.
> 
> It should be fairly easy to modify another D40 to work as
> a stand alone 30M rotary dipole.
> 
> Tom  N4KG
> 
> On Thu, 24 Oct 2002  Dave Pomeroy <dave@dpomeroy.com> writes:
> > Yes I was looking for a dipole that would be for 30 and 40 meters.  I
> >
> > checked most of the major manfacturers and didn't find anything.
> > Thanks  for the suggestions.
> >
> >
> > Dave Pomeroy K7DNP South East Washington
> >
> > _______________________________________________
> > AN Wireless Self Supporting Towers at discounted prices,
> > See http://www.mscomputer.com
> >
> > Wireless Weather Stations now $349.95. Call Toll Free,
> > 888-333-9041 for additional information.
> > _______________________________________________
> > Towertalk mailing list
> > Towertalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
> >
> 
> ________________________________________________________________
> Sign Up for Juno Platinum Internet Access Today
> Only $9.95 per month!
> Visit www.juno.com
> _______________________________________________
> AN Wireless Self Supporting Towers at discounted prices,
> See http://www.mscomputer.com
> 
> Wireless Weather Stations now $349.95. Call Toll Free,
> 888-333-9041 for additional information.
> _______________________________________________
> Towertalk mailing list
> Towertalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk

<Prev in Thread] Current Thread [Next in Thread>