Most Schwarzbeck antennas and many antennas of other manufacturers are equipped with 22 mm tube and indexing ring. For such antennas, there is an adapter that allows the fixation on a tripod with small or large camera thread. The antenna can be inserted into RA 9215. The indexing ring of the antenna gets locked into RA 9215. A metal ball which is under spring pressure locks into the sliding track of the indexing ring. Every 90 degrees there is a deeper hole in the sliding track of the indexing ring. The antenna is held there, with a certain retaining moment. Once set up to exactly horizontal polarization the RA 9215 allows changing to vertical polarisation and back precisely within seconds.
The indexing ring can be shifted along the tube after loosening 4 grub screws. It can also be removed completely. When fixing it special care should be taken regarding the alignment of the indexing holes and the polarisation planes of the antenna.
If the antenna itself has no 22 mm tube, then the AA 9213 mast adapter for antennas with a 3/8 inch thread can probably provide it.
| Dimensions without lever: | 80x72x42 mm |
| For tube diameter: | 22 mm |
| For diameter of the indexing ring: | 35 mm |
| Weight: | Ca. 250 g |
| Threads on bottom: | 1/4″; 3/8″ |