H-Hentenna for 50MHz

See a figure hh05_b.gif

A ---- "L"-shaped material(aluminium) |10mm _10mm
B ---- square pipe(aluminium) 10mm*10mm
C ---- copper wire 2mm diameter
X ---- 215mm (Variable, you'll find the best value on your frequency)

And elements are shortened to the boom.

That's it. OK? de JA7KPI tada