Most Schwarzbeck antennas and just as many antennas from other manufacturers are equipped with a 22 mm tube and locking ring. There is an adapter for such antennas, which allows the fixation on a tripod with a small or large camera thread. The antenna can be plugged into RA 9215. The antenna snaps into the adapter with the locking ring. A locking ball, which is under spring pressure, now guides the antenna in the recessed groove in the locking ring. Every 90 degrees there is a circular recess in the locking ring. The antenna is held there with a certain holding torque in the polarization. Once precisely set, the RA 9215 allows the polarization to be changed quickly without having to reset the exact angle with a spirit level.