The G5RV, named for its late developer Louis Varney,G5RV, is a variation of the center fed Zepp. Varney originally designed the dipole to be 1.5long on the 20 meter band, where it could achieve a modest amount of again over a half wave dipole, and yet could also operate on other amateur bands with an antenna tuner. This approach is in contrast to most multiband single-wire diploes described earlier, which start off with a half-wave-long wire at the lowest frequency of operation. The G5RV employs a simple feed system using a transition between open-wire and coaxial transmission lines and has moderate SWR on band other than 20 meters.