(2019-08-17, 05:04 PM)seandepagnier Wrote: If you must lock calibration then do so, but I would carefully look at the calibration plot while it's unlocked to understand what is going on.
It's most likely there is magnetic interference of some kind.
Ok, so how far from speakers should it be? currently its mounted on the opposite side of the helm as close to the middle of the boat as possible I would estimate it is 30 - 36" away from the speaker mounted on the starboard gunwal and it would be approximately 60" from the speaker mounted on the port gunwal.... Do you think that is too close?
Its really the only spot on the boat that doesn't get splashed in rough conditions.
Another thing at the helm is my gps/depth sounder, they are roughly 30" away... not sure if they produce magnetic interference or not though..?
Also, what am I looking for in the calibration plot?