Art Unwin KB9MZ wrote:

Cecil Moore wrote:
... My favorite is 20 ft of fiberglas pole mounted on top of
20 ft of 2x4s.

Re fibre glass pole. How is it made? Solid or hollow?
Is it a vaulting sports pole that is modified? Fishing pole?
Can you supply any details?


I'd be interested in the 20 ft of 2x4. What's the best way to do
that?

73... MArk AA7TA

Z.Z. wrote:
I'd be interested in the 20 ft of 2x4. What's the best way to do
that?

Wood 2x4's come in 20 ft. lengths although not every lumber store
carries that length. Or you can stack shorter 2x4's side by side and
staggered to form a 4x4 base. Laying on its side, such a support might
look like:

-----12 ft length------------------16 ft length--------------

+------------------------+--------------------------------------+
+------------------------+--------------+-----------------------+
+---------------------------------------+

-------------16 ft length--------------

The upper 16 foot section can be hinged to lay the antenna down.
I used treated lumber for pole applications. Then I added a 20
ft section of fiberglas pole to the above using U-bolts to get
to 44 feet total height.
--
73, Cecil http://www.qsl.net/w5dxp



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Cecil Moore wrote:

Wood 2x4's come in 20 ft. lengths although not every lumber store
carries that length. Or you can stack shorter 2x4's side by side and
staggered to form a 4x4 base. ...

Thanks for the info. Looks do-able. How do you plant these in the ground?
Another 2x4 several feet into the ground? And do you use intermediate guy
wires? I've often thought about building a mast like they've shown in the
Handbook for years, altho they specify 22' 2x3's. Yours seems a bit more
rugged and easier.

73...

Z.Z. wrote:
How do you plant these in the ground?

Post hole digger. Two feet in solid clay is plenty of
support for a guyed system, at least around here.

And do you use intermediate guy wires?

Yep, at the 2x4 to fiberglas pole interface - otherwise
the 2x4's will warp something fierce.
--
73, Cecil http://www.qsl.net/w5dxp



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