Fr J Hackett
Well-known member
If irc the Stowe Dataline system had the possibility of that feature. Not sure if it was part of the system or a 3rd party switch. It was in a boat I bought quite a long time ago and eventually gave up on the Stowe system which was good but beginning to fail.Join the club !
But in fact I can understand that a log would be effected by tack more than a sounder ..... sounders have a decent angle / cone of signal ... but a log relies on clean water flow over it ...
We have the possibility that the blue box is doing the switching .... it explains the orientation marks on it ...