wrote in message
oups.com...
I am new to ham radio and am trying to learn about antenna building. I
have the capability to weld at home very thin material. Was wondering
if EMT conduit would be good for making an antenna? It seems light
weight and resists corrosion and is weldable.
I need somethign that will last. I will be putting it on top of my tv
tower and I am afraid of heights. I only want to do this once.
I've used EMT several times successfully - mostly for 10-meter work. I
didn't weld on them - just cut and drilled.
I expect welding would destroy the galvanizing and cause corrosion - unless
you plan to re-coat those areas with zinc.
One vertical dipole I made used a pvc junction box between the 2 EMT pieces.
I fed the coax thru one of the EMT ends thru to the junction box, where I
connected the coax to the conduit using stakon terminals and sheet-metal
screws.
The dipole was suspended from a tall tree branch. - and worked great for
years.
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