Ariel (ver 3.01) Abandoned Freeware Ariel is a HF (1 to 30 MHz) wire antenna design program for: Extended Double Zepp Three Half Waves Lazy-H (a.k.a. W8JK) ZL-Special (a.k.a. HB9CV) Bobtail Curtain Bruce Array Sterba Curtain Dipole Curtain Log Periodic Dipole You simply enter the design frequency, and the program shows a dimentioned drawing of the antenna.