[TowerTalk] Fwd: Thoughts on towers suitable for my difficult location?

W0MU Mike Fatchett w0mu at w0mu.com
Wed Oct 23 21:07:17 EDT 2013


How about a crank up mast Like US Tower 55 footer or an AN Wireless self 
supporting tower?  Maybe you have major issues with digging holes etc.

The older I get the more and more I wished I had purchased crank up towers.

Mike W0MU

On 10/23/2013 2:39 PM, Larry Loen wrote:
> (Forward to the whole group).
>
> ---------- Forwarded message ----------
> From: Larry Loen <lwloen at gmail.com>
> Date: Wed, Oct 23, 2013 at 1:38 PM
> Subject: Re: [TowerTalk] Thoughts on towers suitable for my difficult
> location?
> To: Jim Lux <jimlux at earthlink.net>
>
>
> I agree with you, Jim, but to play devil's advocate a bit, maybe you plan
> for something that basically doesn't survive.
>
> Suppose you have a TV push up mast style design that is guyed decently.
> Forget the house.  You put a two element quad on it or a small Yagi and
> only go up 43 feet. KY6R proved that even living in a big bowl in
> California, you can make Honor Roll with such a setup.  They key is a very
> light windload.  You don't go all out.  Say, a quad or a two element
> monobander.
>
> So, maybe you just make sure it can't fall on anything interesting and
> build simple??
>
> Me, I'd go for the big tower with the (engineered) deeper hole.  But, if
> you have the space and you don't have to worry about it falling on someone,
> maybe you plan for something inexpensive that you can simply replace.  It
> would also be collapsible in the event of a hurricane as well.  The big
> worry would be unplanned storms or maybe being out of town when the
> hurricane blows in quickly.
>
> This is a non-winter zone as I recall, so the usual "ice" discussion for a
> quad should be a non-issue.  So you replace it a couple of times?  Cheaper
> than a big, hefty tower.
>
> But, I'd have to be very sure about it not falling on someone.
>
>
>
> Larry WO7R
>
>
> On Wed, Oct 23, 2013 at 12:59 PM, Jim Lux <jimlux at earthlink.net> wrote:
>
>> On 10/23/13 12:33 PM, Drax Felton wrote:
>>
>>> If it's bracketed to the house then the house should already be on a
>>> stable foundation.  Why the expense of a PE  for a short 40 ft tower?  Use
>>> a hazer or tilt base and crank the darn thing down when a hurricane
>>> approaches.
>>>
>>>   Most houses aren't actually all that good at withstanding localized side
>> loads. They're designed to hold roof up, and depend a lot on gravity to
>> keep things oriented and attached.  It's often hard to find a place to
>> attach the tower that can take the loads. The fascia boards will rip right
>> off.  Hooking to the between floor beams/joists on a 2 story house is
>> probably reasonably secure (but you'd need to check the house design).
>>
>> I'm of the general opinion that bracketing is something to support a short
>> or telesecoping tower which is frighteningly wiggly to climb, not to
>> withstand significant wind loads.  It doesn't take much of a lever arm to
>> develop amazingly high lateral forces on your house's structure.
>>
>>
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