Originally Posted by
IBNFSHN
Mike, I too appologize for getting off subject, but it was in your blog (whatever those are). CP covered your question quite well. I've been using all different kinds of fish finders for years thinking I needed some of the features adverised. After playing with them for a while I always went back to the basics. Do yourself a favor and turn those fish symbols off. All they do is fustrate you because you see fish on them but no bites. Anything that will reflect the signal will show up as a fish. And there are a lot of things under water that will do this. Each time you go fishing adjust your sensitivity up until the screen starts to get cluttered, then back it off until its just is clear. This will enable you to see max detail of the bottom and thats what you want to be looking for - structure. Thermocline is another important thing to be aware of and with max sensitivity you can determine its depth. Do a search here on that. There has been some excellent articles written about thermoclines. I think it was Moose that goes into some detail and is worth reading. Have you ever been trolling along and all of a sudden you see a whole string of "fish" at exactly the same depth? That is probably your bait or a stick caught on the xducer.
Anyway, the future for fishing electronics does look bright. Back during the Nam conflict the Navy (I say Navy because thats where I first saw it) came out with SLAR. Side Looking Airborne Radar. This stuff was fantastic as it could see thru clouds and the results were almost as good as regular aerial photography. There are underwater versions of this which is fantastic. You can not only tell there is something there, you can see what it is. I have no idea how big of a boat you would need to house it even if the public could buy it. All we got to do is wait for a fishing version and then take a gunny sack full of 1000 bills and buy us one. There has been a few recent articles written somewhere but there goes my memory again. One in particular, they found a truck under the water with a body in it. Hopefully someone can remember the name of this technology in case someone wants to read some more about it,