are some of the small boat loran sets made to work without having a coupler unit? I see a lot of 'em for sale without couplers, but had always thought they require a coupler to work right.<br /><br />I do recall one time, though, when one of mine had a coil of coax laying in the bottom of the center console, unconnected to anything, and it worked. Some yahoo hadn't bothered to reattach it to the gunwale antenna after working on it. <br /><br />So whats' the word on couplers?
