For medium-heavy applications for antenna systems for 2m or 70cm. Electrical and mechanical stop. The brake locks the antenna in place, however it allows the antenna to position itself in case of strong winds. The indicator is self-calibrating after ignition. The clamps for the mast are required for installation: GC-038. The G-650C is similar to the G-450C model, but has a maggior braking torque (see table). Suitable for small HF directives or medium antenna sizes for 2m/70cm. Both models have a 450-degree rotation and mast mounting media. Easy connection to the cable, the control box has a 450-degree compass display. When used with a retracted bra, use a 50mm diameter mast.