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[TowerTalk] Low Band Verticals

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Subject: [TowerTalk] Low Band Verticals
From: (
Date: Wed, 5 Sep 2001 14:48:47 -0600
On Wed, 5 Sep 2001 Bob Nielsen <> writes:
> On Wed, Sep 05, 2001 at 09:00:20AM -0600, wrote:
> Just don't take too seriously the blurb on the MFJ web site where it
> says "3 feet of ruthless radiating power".

        That was a misprint.  The antenna is 33 ft tall.
> > 
> > I just purchased an MFJ-1793, modified to include 30M,
> > and plan on installing it in a clear field where the nearest
> > metal object, a 12X24 storage building is ~150 ft (1/2 WL)
> > away and the nearest towers are ~300 ft (1WL) away.
> > I will compare it with my Elevated GP and tree supported
> > wire vertical and report back to TowerTalk at a later date.
> Does MFJ supply the additional parts needed to lengthen the 20 meter
> stub for use on 30 meters?  I suspect that if they came out with a 
> new model which featured this, it might be popular, since many hams
> yagis/quads for 14 MHz and up and are looking to cover the lower
> frequencies.
        The person I bought the MFJ-1793 from told me
        he ordered an extra stand-off insulator, rod, and
        coupler from MFJ to tune the side stub to 30M.

        If I had any influence with MFJ I would  tune
        the attached side stub for 30M instead of 20M.
> > Note that the MFJ 1792 is NOTHING like the NO RADIAL
> > MultiBand antennas they also sell.
> I suspect that in many peoples minds it is tarred with the same 
> brush.     Bob, N7XY

        That is unfortunate.  This looks like a good design
        both electrically and mechanically.  Guess I need
        to get busy and set it up.   N4KG

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