Hi,
Do I apologize for my weak English (my native language is Polish).
Yesterday my 997c worked correctly to some moment.
After a few hours the readings came very weak.
Unit doesn't show the structure of the bottom (2D).
I checked parameters and I know that 83KHz beam didn't work. In dual view (83/200) 83KHz looks like very shallow water (200KHz shows correctly depth but details of bottom are poor)
I checked transducer and looks ok.
200KHz, SI, DI - looks like worked correctly.
Could anyone help, where I should look for causes?
Unit?
Transducer?
Cables?