West Marine Adjustable Stand Off Extension

West Marine Adjustable Stand Off Extension . Stand off insulators keep vertical antennas vertical! For best results, a vertical antenna should actually be vertical otherwise you're aiming half your RF energy into the water and not enough toward the horizon. Consists of two cast stainless steel fittings, one attaches to the flying bridge or upper part of your boat s structure. The other attaches to an upper antenna bracket like our Model 184234. Distance off adjustable from 3 9