If anyone has this issue I sure would like to buy a copy of this article!!!
73 de Terry KK6T
At 10:07 PM 2/24/2003 +0000, K8NKE wrote:
>if you can find the July 1989 ham radio on page 38 they had an article
>Design data for pipe masts which may be helpful.
>73 k8nke
>
>At 02:24 PM 2/24/03 -0500, you wrote:
>
>>I believe what you are describing is not only practicable, it has been done
>>many times before. QST, years ago (at least 25years) had a how-to-do article
>>on this type of tower which incorporated used oil field pipe. It also had a
>>tilt-over feature which made it very easy to install the antenna at the top.
>>A base pipe about 20 or 25 feet long was buried in concrete to about 6 or 7
>>feet and the tower was attached at the top at its balance point. A winch was
>>installed on the base pipe where the bottom of the tower contacted the base.
>>With the tower balanced, the weight of the beam allowed it to swing over and
>>it could then be pulled vertical with the winch.
>>
>>The one I saw moved slightly in the wind which is to be expected. The main
>>objection to this type of tower probably is the mounting of the rotator if
>>you put a yagi on top.
>>
>> I would like to build this type of tower just to raise and lower wire
>>antennas for 160 and 80 meters. I think I could go to 100 feet since only
>>wires would be used, not a yagi or other attachment with a higher windload.
>>I did a search on the web using Google last night looking for the OD and ID
>>of aluminum irrigation pipe but found nothing helpful. If you run across any
>>articles or design data, please let me know. Good luck es 73.
>>
>>Jan Rehler, W5KNZ, Corpus Christi, Texas
>>_______________________________________________
>>
>>See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
>>Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with
>>any questions and ask for Sherman, W2FLA.
>>
>>_______________________________________________
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>>TowerTalk@contesting.com
>>http://lists.contesting.com/mailman/listinfo/towertalk
>>
>>
>>
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>_______________________________________________
>
>See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
>Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with
>any questions and ask for Sherman, W2FLA.
>
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>TowerTalk mailing list
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