11-01-2007, 04:13 AM
Don Iovino has a web site and he may have some more pointers on understanding your sonar. After checking and re-connecting all your connections....You might try this standard trick... go to 20 ft. Set your sonar on manual and turn the sensitivity up till you get 2 echoes on screen. Then turn it down a little. Move around for a while on this setting. If you get in a cove your will be able to graph some aquatic vegetation lines. Find them visually and then drive over them to see the screen picture. At this setting you should see some smaller fish on the screen if they are there and in the visual cone.
You see this is not an easy one....
"[font "Verdana,Arial,Helvetica"][black][size 1]I get some short horizontal lines at various depths, but more often, I get a large number of lines "stacked" through the entire depth field for a few feet then nothing. Other times, I get just a mash of lines everywhere"
[/size][/black][/font]As far as vagrant lines on the screen that may be some electronic interference. Make sure the transducer cable is away from the starting motor wiring and somehow isolated from starting motor battery. Experiment with different motor actions to see if you are getting electrical interference. Maybe it is also the location of your transducer on the hull is causing a bit of cavitation on the surface of the puck. Try washing the transducer with some detergent to clean off any contaminants.
If you are in Las Vegas Wash try get near a guides boat - don't fish there! - remembering courtesy and maybe you will see some striper arches.
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You see this is not an easy one....
"[font "Verdana,Arial,Helvetica"][black][size 1]I get some short horizontal lines at various depths, but more often, I get a large number of lines "stacked" through the entire depth field for a few feet then nothing. Other times, I get just a mash of lines everywhere"
[/size][/black][/font]As far as vagrant lines on the screen that may be some electronic interference. Make sure the transducer cable is away from the starting motor wiring and somehow isolated from starting motor battery. Experiment with different motor actions to see if you are getting electrical interference. Maybe it is also the location of your transducer on the hull is causing a bit of cavitation on the surface of the puck. Try washing the transducer with some detergent to clean off any contaminants.
If you are in Las Vegas Wash try get near a guides boat - don't fish there! - remembering courtesy and maybe you will see some striper arches.
[signature]