[TowerTalk] Antenna spacing on mast

[David Thompson]

Dick, NY1E said

Lets not get carried away, 4-5 feet of 1.5" (1.9 OD) water pipe is fine for 
your antenna...Works for many 40 meter beams 10' above the tribander...

Sorry but schedule 40 water pipe is not designed to carry an antenna much 
above the top of a tower.  Water pipe is designed for inside flow and easily 
bends in a wind. And a 40 meter beam 10 feet above a tri-bander is a 
disaster waiting to happen.

Towertalk archives should have plenty of notes on this matter.  Better 
choices include steel masts from say US Tower or heavy wall aluminum.

Dave K4JRB