ATAS-GG: Counterpoise ring

The well known antennas by Yaesu were designed as car antennas, still they are often used as stationary antennas as well because they are very compact. But then there is no suitable counterpoise, the balcony rail or magnet base are usually not sufficient.

The ATAS counterpoise consists of a solid aluminium ring which is attached to the base of the antenna and can remain attached even when mosing the antenna around. The ring has threads for 8 radial rods, each with a diameter of 4mm. This is no perfect counterpoise, but still efficient enough for portable operations and ease of use. If space allows you can install longer wire radials for the 40m band.

ATAS-GG: Counterpoise star

The counterpoise can also be used on a car, for example when the magnet base has not enough capacitive coupling to the chassis.