[daveleonard]

I recently heard that one should never use a non-conductive material like PVC for an antenna mast. Why is this true? PVC is lite, easy to put up and take down especially if you use a tilting mast. The antenna, say a HF vertical, would be grounded to copper rods in the ground eight feet deep all having copper straps grounded to the antenna and the coax cable. A lightening protection rod would be used being ground in common with all the others. Of course all the station equipment would be grounded to a common plate attached to the copper coated rods. All equipment and antenna would be grounded in common using good grounding practice. So why can't a non-conductive material be used?