That's exactly what happened to mine.
Darl NA8W
--------------------------------------------------
From: "Joe Subich, W4TV" <lists@subich.com>
Sent: Tuesday, February 09, 2010 3:22 PM
To: "'Tower and HF antenna construction topics.'" <towertalk@contesting.com>
Subject: Re: [TowerTalk] XM-240 Shorty-Forty: X-Hat Modification
>
>> 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
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>> >
>> >
>>
>>
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>>
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