[TowerTalk] (no subject)

jacobsen_5 at msn.com jacobsen_5 at msn.com
Fri Oct 13 13:11:39 EDT 2006


In a message dated 10/12/2006 5:36:36 P.M. Pacific Daylight Time,  
towertalk-request at contesting.com<mailto:towertalk-request at contesting.com> writes:

>  Sorry, but in all the piles I only saw one suggestion that  Im looking for.

>  Im not looking for mail order, I need to  find mast material that I can 
obtain locally.   So far the Fencing  material is only one suggested.

K7LXC Replied:
    "It's already been pointed out that you're looking  for tubing - not pipe. 
You need something like an SAE 1026 or A520 - something  in the neighborhood 
of 50-60,000 psi yield strength I imagine. I didn't see  the original post so 
I'm not sure what your specific application is, what  your proposed antenna 
load is or what your county windspeed rating is. " 

And I add:  Fencing material is NOT what you want. I believe it has a welded seam and will split at the first side load applied. I've seen ground planes for low band commercial use up 20' or more on fencing material. The first good wind and the "Pipe" split like a banana peel and the antenna was over like it was being used for NVIS.

Just my $.02
73
K9WN  Jake


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