I had a first generation Interphase forward looking sonar while I was cruising in the South Pacific
, and I did not find that it helped me that much when I really needed the help.
I was looking for something to use in restricted quarters near reef strewn waters, and I had the hope that it would keep me from making serious mistakes
and underwater obstruction.
In practice, I did not find it to be that helpful unless I was going really slowly forward. Otherwise I would be "overdriving my headlights" so to speak. By the time it showed up on the forward looking sonar, it was too late to help me.
I wanted to use it in relatively shallow water
, and I found it was least effective in shallow water
where it would help me the most. That was my experience.
I also did not want to spend my time looking at a sonar screen
. I would rather look at the water, wind
, and other navigational tools that did a good job of keeping me off reefs
. The way I navigated, I kept the boat in safe water at safe speeds, and the sonar was not that much of a help. Other people probably have a different experience, and they may use the sonar in a different manner.
I also would not rely on it to find floating containers in front of the yacht.
I hope it works better for other people than it did for me.