I just realized, now that the telescoping tubing antenna has been (unfortunately) busted off, that creates an opportunity to try making a more robust alternative - a tape measure element. As shown in this previously posted blog (scroll down a half dozen posts) this fellow used pieces of flexible steel tape measure to make a more rugged backpack whip. At 5 bucks for a 1" wide tape, its worth a shot. Just scrape off the paint and tie-wrap it tightly to the remaining stub of the failed telescopic tube. Make it 18.2" long total. Add the trailing wire counterpoise. Voilla!