> I wonder why they fall off?
The original X-hat elements were solid rod 3/16" in diameter
with a 1.25" long by 3/8" OD sleeve crimped over the center
of he rod before drilling for the #8-32 x 1.75" mounting bolt.
Newer antennas - or at least some production runs - appear to
lack the crimped sleeve as they fracture through the mounting
hole due to vibration. My guess is that the sleeve was
eliminated as a cost cutting measure <G>.
73,
... Joe, W4TV
> -----Original Message-----
> From: towertalk-bounces@contesting.com
> [mailto:towertalk-bounces@contesting.com] On Behalf Of Gregg Seidl
> Sent: Tuesday, February 09, 2010 1:57 PM
> To: Tower and HF antenna construction topics.
> Subject: Re: [TowerTalk] XM-240 Shorty-Forty: X-Hat Modification
>
>
> I wonder why they fall off? I've never heard of that. Mine
> have been up for
> 6 years now. Gregg K9KL
> ----- Original Message -----
> From: <RLVZ@aol.com>
> To: <towertalk@contesting.com>
> Sent: Monday, February 08, 2010 4:43 PM
> Subject: [TowerTalk] XM-240 Shorty-Forty: X-Hat Modification
>
>
> > Hi Guys,
> >
> > I've had problems with the X-Hat Rods falling off of my XM-240.
> > Therefore, I would like to eliminate the X-Hat by lengthening the
> > elements. I'm wondering if anyone has done this
> successfully and how
> > much length must be
> > added to the elements?
> >
> > Or if anyone has modeled the removal the XM-240 X-Hat by
> lengthening
> > the elements... please share what element lengths you came up with.
> >
> > Thanks!
> >
> > Dick- K9OM
> > _______________________________________________
> >
> >
> >
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> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
> >
> >
>
>
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