898 SI Question...

Your right.. Not sure what I was thinking... Ahh.. One of those days. The angle to the ground would be steeper. In other words the SI transducer would not be level with the water surface when I am sitting on one side. I guess I need to tilt it a little to make sure it is parallel with say... the water mark on my boat after a day of just me riding around. That would work but then it might hit the old transducer since the angle has changed. Also, when my fishing partner would be with me, I would need to adjust the angle of the transducer again... I might can find an adjustment that would get it to work just right for both situations. I will try and see. It is not that big a deal.

DoubleG

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Originally Posted by Allan

Since both transducers are fixed, when the boat tilts or leans it wont change the relationship the ducers have to each other. In others words if it can see past the original transducer when the boat is level, then it can see past it when the boat leans.

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I thought you might be right on this one but the more I think about it It can block the view. As the boat leans one TD gets a lot higher or lower than the other. I guess it all depends on the view of the TD

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Originally Posted by wilbur

I thought you might be right on this one but the more I think about it It can block the view. As the boat leans one TD gets a lot higher or lower than the other. I guess it all depends on the view of the TD

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I am right on this one. If its not obstructed level then it wont be obstucted leaning. It wont see out as far, to one side or the other but it will still see past the other TD.

I think if DG gets rid of the old ducer he'll see a big improvement. Won't cost anything to try.

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Originally Posted by Allan

I am right on this one. If its not obstructed level then it wont be obstucted leaning. It wont see out as far, to one side or the other but it will still see past the other TD.

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Sorry Allan dont know what I was thinking. Too many Miller Lites I guess.

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Originally Posted by wilbur

Sorry Allan dont know what I was thinking. Too many Miller Lites I guess.

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Thats a good reason, and perfectly undestandable. At least it wasn't some flimsy excuse! lol

Allan is right on this: the relationship of the two transducers does not change and neither does the direction of the Si beam change as it relates to the other transducer. Still, that second transducer could be part of what is blocking part of the Si sonar to that side. If you look at the pictures that show the Si sonar there are vertical lines that parallel the zero/surface line. This usually means that something is reflecting a part of the Si sonar. The Si beams radiate outwards, downwards and a bit upwards, so it could be the second transducer even though it is slightly higher than the Si transducer is (when the boat is level).

I would check the SwitchFire menu setting, try adjusting the Surface Clutter menu and also see what the Beam Select menu setting is on. It looks like it may be showing the 83kHz sonar. I would try the 200kHz setting.

Thanks for the help... The surface clutter setting helped the first problem drastically... but it also seemed to soften up the bottom hardness return. I will have to mess with it a little more.

As for as the SI goes.. I plan to remove the other sonar to see if that helps. I don't use it anymore anyway....

DoubleG

Turn up the sensitivity on the 2d sonar to firm up the bottom return.

Thanks TN.. I will give that a try!