Huh, been using SMBs in the non-shipping lane of the St Lawrence River for ten years now. Works perfectly, send it up from 30 ft and the charter boat sees you easily.
(Don't use one in the shipping lanes though, the St. Lawrence Seaway hands out fines for this.)
(Don't use one in the shipping lanes though, the St. Lawrence Seaway hands out fines for this.)
Last edited: