Originally Posted by RaymondR
Has anyone had any experience with underwater TV. No good in dirty water but a lot of the offshore reefs
in northern Australia
have pretty clean water.
I've operated my mini ROV from a boat to check the bottom, how well the anchor
is set, etc. It's useful in some situations, but often times the current
or poor visibility here in SoCal makes it of limited use. In good visibility, and assuming you know how to use it, I think it can be a very useful tool.
On the subject of sonars, etc, I have a lifetime at sea under my keel
and agree with some of the points people have made. I think a prudent mariner will use whatever sources of information he can get, but needs to understand the limitations of each of those sources. I would not assume a route
is clear purely by what a sonar shows me. Nor would I make any other assumptions based on one source of information.