Lee - give me a call. I have an extra 42 ft long 3 in. diameter aluminum boom
from an M2 4 element 40M4LLDD. It comes from the factory in 3 sections that are
easily hauled on a flat bed trailer.
. I just finished assembling one and this one is excess to my needs. I have all
necessary parts to build the antenna except the elements.
And no shipping - I'm in Conroe, TX!!
My cell is 713-851-7576.
J D Lambright - KF5U
Montgomery County Attorney
936-539-7930
Sent from my iPhone
> On May 25, 2015, at 12:22 AM, Lee <L@w0vt.us> wrote:
>
> I have been contemplating building a Moxon Yagi 40 meter beam for a long time
> and I need to get started with the project. The bottom line is I need a
> strong boom 30 foot long. I'll use a boom truss but am thinking of aluminum
> around 3 inches in diameter and maybe 1/4 inch wall thickness. I realize
> this won't be cheap. Maybe this is not even strong enough for a 2 element
> beam. I live near Houston, so I am thinking maybe an aluminum provider might
> be able to sell it to me in one piece. (Trying to figure out how to connect
> affordable 6 foot shippable pieces has kept me stumped from starting the
> project up until now.)
>
> I'd sure appreciate hearing suggestions on how to get the job done. I'm not
> trying to do this on the cheap but the best reasonably affordable way to do
> it. I'm thinking the cost of a boom like this might be in the $300 to $400
> range. (I don't mind splices, but where to get large telescoping tubing? I
> wrote DX Engineering and they discouraged me from using their tubing as they
> said it was not intended for booms even though I wanted to beef it up with
> sleeves). Boom diameter is a factor because cast boom to element clamps
> don't come in every size. (I have purchased heavy duty aluminum channel
> stock for boom to element connections to be used with aluminum cast U-clamps.)
>
> Any help would be appreciated.
>
> Lee, w0vt
> Houston, Texas
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