Subject: Re: [Antennas] Telescoping Aluminum Tubing

2002年1月03日 21:34:57 -0800

Thanks to all for the useful information my post generated.
Assuming I purchase 6' lengths of 6063-T832 drawn aluminum tubing (the 
tubing where each size telescopes into the adjacent sizes) from Texas 
Towers, how high a vertical do you think I could erect with one person 
walking the tubing up and another person holding the bottom on the ground? 
If I purchased each size and telescoped them with a 1' overlap, I calculate 
I would have a 76' length. Assuming the tubing didn't buckle, I think 
erecting it would be a big problem. I would like to be able to erect an 80 
meter vertical, which ideally would be around 60' high. Those of you who 
erected 40' antennas, could you have gone higher without serious 
difficulties? What was the maximum size tubing you used?
Thanks, Jim, w6ivw 