If you see something interesting you stop the chart from moving and place mouse point over say a big stump with a couple of bass next to it.If we can hear that tapping noise, bass can hear it and learn to associate that with being hooked.I stop charting whenever the depth makes sonar impractical, but leave the GPS on so I can make valuable waypoints to mark hot spots.
Jim. Jim you say that your turn off the sonar but leave on the GPS. I wonder if that is possible with my new unit (LMS 520c) which is sonar and GPS It has a through the hull transducer. All analog and first generation digital transducers make the tappingclicking noise, some louder than others. With boat on the trailer turn the sonar on and listen to the transducer. Theres a newer technology out, a special digital sounder, that should be quiet. Last time I looked those modules run about 300, so I doubt you got one. I doubt anyone except a deep sea research vessel has one yet. On a 520 with the sonar page in view just press MENU once and look half way down for Stop Chart. I like to keep Trails going to make it easier to figure out where I was when sorting waypoints at home. To do that I put my Lowrance map card in the reader so I can view the lake contours on the pc. Thats a running record of everything your sonar displayed even when you were not looking. Lowrance Sonar Viewer Free Downloadable LowranceI can then read that data into the free downloadable Lowrance Sonar Viewer and watch the days sonar to pick up lots of information about where I was. Because you have GPS the Log Sonar also collects GPS positions which show on the screen with the sonar. It gives you the exact coordinate of that stump as well as depth and all the details you should have seen live while fishing. They need to be kept clean with nothing but plastic showing.
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December 2020
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