fishfinders
- Thread starter rambo79
- Start date
Taken from -
http://www.cannondownriggers.com/site/html/htmlsite/topten.htm
Generally speaking, a hard bottom will be indicated with a thicker (top-to-bottom) contour line because it reflects most of a transducer\'s sound pulse. A soft, mucky bottom will absorb sound and return a weaker echo, resulting in a thinner contour line. However, a feature Bottom Line® calls GrayScale makes it easier to see the difference between hard and soft bottoms. All Bottom Line units display GrayScale to indicate very strong reflections from the bottom. The thicker (top-to-bottom) the checkering, the harder the bottom.
Have a look at the link it also explains how a fish finder works.
Have a look here as well-
http://www.hammondfishing.com/reports/031003.htm
Marc
[Edited on 4/9/2004 by Marc]
http://www.cannondownriggers.com/site/html/htmlsite/topten.htm
Generally speaking, a hard bottom will be indicated with a thicker (top-to-bottom) contour line because it reflects most of a transducer\'s sound pulse. A soft, mucky bottom will absorb sound and return a weaker echo, resulting in a thinner contour line. However, a feature Bottom Line® calls GrayScale makes it easier to see the difference between hard and soft bottoms. All Bottom Line units display GrayScale to indicate very strong reflections from the bottom. The thicker (top-to-bottom) the checkering, the harder the bottom.
Have a look at the link it also explains how a fish finder works.
Have a look here as well-
http://www.hammondfishing.com/reports/031003.htm
Marc
[Edited on 4/9/2004 by Marc]
Norman
Well-known member
Hi Mickey,
The fish shape means that the automatic function in the fishfinder has spotted something that could be a fish .......... It`s nearly always NOT, I suggest you turn off the auto bit that detects \"Fish\" or else youell be stopping over every little bit of rubbish in the water and trying to catche it
LOL . I, and many more I`m sure use the fishfinder \"as it`s called\" as a sonar, simply detecting bottom shape, texture and structure, in the main looking for holes in rough ground or wrecks furthur out. This is then the places where fish are likley to gather, A \"For instance\" is to find a wreck, stop exactly over the top of it and using the plotter function on GPS see which way the drift takes you, then run back along this line exactly and watch the sounder till you are PAST the wreck (or lump) then stop the boat and drop your lines. This way you will guarantee to drift over the wreck with best chance of catching above and behind it.
Good Luck
The fish shape means that the automatic function in the fishfinder has spotted something that could be a fish .......... It`s nearly always NOT, I suggest you turn off the auto bit that detects \"Fish\" or else youell be stopping over every little bit of rubbish in the water and trying to catche it
LOL . I, and many more I`m sure use the fishfinder \"as it`s called\" as a sonar, simply detecting bottom shape, texture and structure, in the main looking for holes in rough ground or wrecks furthur out. This is then the places where fish are likley to gather, A \"For instance\" is to find a wreck, stop exactly over the top of it and using the plotter function on GPS see which way the drift takes you, then run back along this line exactly and watch the sounder till you are PAST the wreck (or lump) then stop the boat and drop your lines. This way you will guarantee to drift over the wreck with best chance of catching above and behind it.Good Luck
E
Ell
Guest
Ya big gay whale
E
Ell
Guest
Two T\'s 
(TC can you make my messages self destruct in 5 minutes or so?) arnie kidding ya daft puff. 
(TC can you make my messages self destruct in 5 minutes or so?) arnie kidding ya daft puff.
E
Ell
Guest
You Nottingham Bastard, any chance of a lift to The Dirty Wreck. Aye and nee jokes about dropping us off. Good to see you back you raging gaymosexual.
