[TowerTalk] Rigid Steel Conduit as Mast?

[Jim Brown]

I asked a colleague who builds a lot of commercial two-way 
installations where I could find 2-inch hot-dipped galvanized mast 
material locally. He suggested that I use 1.5-inch rigid steel 
conduit. I'll be using a 10 ft length with a 3-element SteppIR (no 
30/40M element), with roughly 3 ft inside the top section of the 
tower. The tower is in a relatively protected location, so not a lot 
of wind speed. 

I would question whether this is sufficiently robust for a bigger 
antenna, but this is not a lot of load. Any thoughts on this?  

73,

Jim K9YC