I remember seeing a ladder used as the support. Probably easier to
walk up than a single mast.
73, Dick, W1KSZ
On Tue, Jun 4, 2013 at 6:09 PM, K8RI <K8RI-on-TowerTalk@tm.net> wrote:
> On 6/4/2013 8:19 PM, Robert Fanfant wrote:
>
>> Our field day team is planning to put up a SteppIR 2 element yagi (~25
>> pounds). We'd like to mount the yagi ~20-30 feet high and would like mast
>> recommendations. This is only a field day (i.e. once a year) event so cost
>> is a factor, yet the mast should be strong enough so that we aren't out the
>> price of a replacement antenna. Our field day location will be in eastern
>> WA where we at times tend to get moderate winds (~10-20mph) coming through
>> our campsite. Thoughts?
>>
>>
> Can this be one piece, or does it have to be in sections?
> If you have a nearby metal supplier, you can purchase tubing, either
> structural steel or pipe. Structural Tubing comes in schedule 40 and 80
> just like pipe and is rolled with a welded seam
>
> I purchase the tubing in steel and Aluminum. The Aluminum is drawn and
> seamless. It comes in a variety of alloys and wall thickness. For what you
> want 1/8th inch wall should suffice in 6061-T6. There are stronger alloys
> if you wish and I purchase 1/8th, 3/16ths, and 1/4" wall. The only
> drawback to this is, standard sizes do not easily telescope. The steel is
> also available as DOM. However as cost is an issue, we can pretty well
> rule out DOM.
>
> All are sold by the pound.
>
> It's been quite a while since I purchased a load og steel and aluminum so
> I don't remember the prices which would be out of date anyway.
>
> -rob N7QT
>>
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