Something that I don't understand with the fixed wire method : Why you have to put your sub at bearing 000 to do it ? If you put only your scope at 000 whatever the position of your sub, it doesn't work as well ?
I really don't understand the importance of the position of the sub in this case : what the scope show you is the same if the bearing of the sub is 000 or other, if you're stopped of course ! Perhaps this last detail is the ansewer of my question ?
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