Joe wrote,
"---the stock rubber ducky sucks."

A wire 1/2-wave dipole should be about 3 ft, 10 in long. Feed it across
a middle insulator with coax. It should be placed about 2 ft below and
in line with the wing to get a small reflection from the wing and the
best signal fore and aft.

Don`t worry with a balun. Stick with coax alone. Save weight and enjoy
any radiation from the feedline.

Best regards, Richard Harrison, KB5WZI