If you need to get the end of your antenna up a few more feet, you might try this idea sent into QST 85 years ago this month, April 1941. The idea is self-explanatory–you just hoist a new section of mast up your existing mast. The bottom of the new section contains a ring of heavy wire. The idea was submitted to Hints and Kinks by Bernard S. Shields, W5AJJ, who noted that if the guy wires are added to the top section, an appreciable height could be achieved.