Houston! We have a problem.

Needless to say, yesterday SONAR trial was a failure. Everything seemed fine the night before, cable connection checked, PC checked, power supply checked, SONAR checked and etc. Unfortunately, when arrived, it just malfunctioned, looks dead to me. This SONAR has been very problematic since the day it was received from the Manufacturer. Can you imagine, the SONAR delivery was delayed for 1.5 years !. There is no manual for it. I tried extending the cable length to 3m, the whole communication system just gave up. Called up to the company, answer obtained: 1 m is the maximum length for LVDS. In my mind, what is the use of a SONAR that can be in a maximum depth of 1 m.