[snip] On my FTS antenna it's just a standard 1" NPT male thread (NPT = National Pipe Thread). Any US plumbing supply store or home improvement store will sell you iron pipe threaded that way or adapters to go to PVC or copper. -John ============ > PS Where do you get the (1" diameter?) threaded poles these antennas screw > onto? > > Cheers > David Partridge