When holes are used for antenna element attachment, the precise attachment configuration may vary from that of FIG 2b, in which a screw is used to attach {HEAD ~ an element} having {TAIL ~ a threaded hole} 
having
When holes are used for antenna element attachment , the precise attachment configuration may vary from that of FIG 2b , in which a screw is used to attach { HEAD ~ an element } having { TAIL ~ a threaded hole }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL