Hi, I just installed a Tzt3 12, Dff3d, SCX20, along with an existing Tzt2 15. I was trying to use the Tzt3 to supply sounder data to the Tzt2 but it doesn't look like it's sending all the data. There isn't an distinct bottom, and most of the screen is just white with a few colored squiggles. Tried doing a factory setting reset but it didn't help. What setting do I not have turned on? The multi beam sounder shows perfectly.