Originally posted by Michael
Once the signal is lost on the 160 the only way to get it back is to slow to a halt. If you want to spend your day stopping and starting get a 160, if you want to avoid problems get something else.
Try mounting the transducer lower in the water, I found that using the dimensions given in the manual I had much the same problems with the sounder continually losing the bottom and taking ages to get it back.
Moving the transducer about three times deeper than the recommendations seems to have helped a lot and it works not too bad now (most of the time) although it is still a bit lost sometimes at speed. it seems to reaquire the bottom a bit faster now compared to before as well.
Still not completell happy with it though