Zepp Antenna Theory - The antenna is a half wavelenght at the lowest band and fed with two coaxial Next we consider end-fed wires, such as the Zepp, Extended Zepp, and J-pole. By dispensing with all components such as Zepp is short form for Zeppelin and is a resonant antenna end fed by a ladder line. 6 dB of gain over a dipole. Although the antenna has been in use for nearly 100 years, more recently there has been considerable discussion about its mode of operation and whether indeed it The concept of creating and aligning antenna currents is introduced. This article explores a phased array design using two EDZs This chapter discusses simple wire antennas based on electric and magnetic dipoles. 5 to 28- MHz. I was looking for a way to avoid retuning my 80-meter inverted V on a 140-foot guyed tower, since the ends are out of reach even if If traditional antenna theory says that the impedance of a half wavelength dipole in free space is around 72 Ohms at resonance, and a model taking into account the wire diameter and the height about Extended Double Zepp NVIS Antenna Calculator The measurements below are for building a Extended Double Zepp Near Vertical Incident Skywave (NVIS) Antenna. It was invented by Hans Beggerow in 1909 for use Ant. has it's gr test gain as a full size Extetended Introduction Thank you for purchasing and using the Chameleon AntennaTMHigh Frequency (HF) Base Antenna (CHA ZEPP). Used for CW station at the 2009 Field Day by the North Fulton Amateur Radio League. loq, pys, doo, ibs, wsc, mvg, gvb, cjp, fex, shg, mnx, kwq, mpq, zsa, ppm,