Transducer does not work well above 20mph.
Have moved it up and down, as well as several other places.
Had an old thread here when I mounted it about a year ago.
http://www.wellcraftv20.com/cgi-bin/...num=1147871611
But, it might just be the hummingbird matrix 17 sucks.
EDIT: Just read above link again, and looked at photo.
We moved it.
It now is located on farthest outside step, (below the vents coming out the back), which is why it probably doesn't work above 20mph.