Can you use one of these to locate a sunken boat?
Fish finder sonar
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fish finder sonar wont find it unless you already over the top of it and if you know where it is to start with, a mask and fins would be more practicle. You are going to have to get wet anyway. If your in the PI, the water isnt that cold. However if its deep, a "Snake Mate" deep water pro costs around $600 and has a 98 foot cable and a scanning camera and a 7" monitor screen. If thats too pricey look up the "Aqua View" series of cameras and moniters. They start around 300 bucks and have several to choose fromComment
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Okey.
But has anyone tried looking through a fish finder sonar how rc subs would appear on screen? Would it show up as sub shape or as a fish?Make it simple, make strong, make it work!Comment
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Last edited by Von Hilde; 09-14-2014, 05:04 AM.Comment
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Interesting…but not entirely correct. Modern ships depth finders have steerable beams and do show you exactly what's on the bottom either directly under the ship or forward in a defined beam. I had one on a 40 meter ship that we ran out of Cebu for four or five years. The beam would clearly depict underwater obstacles forward of the ship to a reasonable depth and with quite amazing resolution; better than .5 metres which would suggest that most R/C subs would be visible.Comment
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Interesting…but not entirely correct. Modern ships depth finders have steerable beams and do show you exactly what's on the bottom either directly under the ship or forward in a defined beam. I had one on a 40 meter ship that we ran out of Cebu for four or five years. The beam would clearly depict underwater obstacles forward of the ship to a reasonable depth and with quite amazing resolution; better than .5 metres which would suggest that most R/C subs would be visible.
Ain't the same things.
MWho is John Galt?Comment
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I think that because of a limited amount of resolution, and graphics capabilities, any inexpensive unit will not have the resolution to delineate between the bottom, and the bottom with a sub laying on it. I would think that some sort of "pinging" device, and underwater microphone will find it more effectively.A man of true Frankenstinean proportions!!Comment
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Does anybody realise were talking about a toy model submarine in relitively shallow water, that you have to go in and get wet for recovering it anyway. That "some sort of pinging device" and "underwater microphone" is called a transdeucer and is an intrical part of any sonar and costs upwards in the millions of dollars on large ships. I dont think there available at the local hardware store cheap. Its like shooting down a duck with a million dollar surface to air missile for pete's sake. Give the guy a breakComment
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On the AMS site, they have schematics for making a inexpensive pinger and underwater microphone. Unlike the Keys where 60 degrees is jacket weather, there are places where the water is in the 40 degree range and hard to dive in.
A toy sub sells for $39.99, I am not sure I call our subs toys, but I am not sure what I call it, maybe my precious?If you can cut, drill, saw, hit things and swear a lot, you're well on the way to building a working model sub.Comment
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There is one problem with the pinger, it requires a programmed PIC chip. Those chips are only available to members, although I'm not quite sure what constitutes a member now that the group is basically an open house.Comment
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On the AMS site, they have schematics for making a inexpensive pinger and underwater microphone. Unlike the Keys where 60 degrees is jacket weather, there are places where the water is in the 40 degree range and hard to dive in.
A toy sub sells for $39.99, I am not sure I call our subs toys, but I am not sure what I call it, maybe my precious?Comment
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Look at the resolution on the screen. Specs says you could see your lure with this.
http://www.sportsmansguide.com/produ...inder?a=949334Comment
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