Two systems, SAGEM's SAMOS and the Thomson-CSF's SATAN were under evaluation in October 1987. The SAGEM SAMOS system featured the EX-83 mount with a SAGEM VOLCAN optical director, while the Thomson-CSF variant was controlled with an off-board Castor IIJ fire-control radar.
In October 1987, two systems were being evaluated: SAGEM's SAMOS and Thomson-CSF's SATAN. The SAGEM system utilized the EX-83 mount with a SAGEM VOLCAN optical director, whereas the Thomson-CSF variant was controlled by an off-board Castor IIJ fire-control radar.