Marine Electronics Forum

Erratic Depth Readinsg

Old 05-26-2008, 03:17 PM
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Default Erratic Depth Readinsg

I've notice very erratic depth readings with the Smartcraft system on our 2008 SeaRay 38. Seems worse at low and idle speeds but also when on plane. Our previous boat 260 wasn't this bad, not sure if this "normal" for the 38 with V drives. Anyone else see this?


Old 05-28-2008, 07:07 PM
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Default Re: Erratic Depth Readinsg

Same issue on my 40 with a Deep V Hull and twin merc 454's - have been told by the installer that this is due to the unit running in shallow water with air pockets that form around it - problem is - you NEED this in shallow water - looked into a more "sensitive" unit from Airmar, but they warned me against it as they are only functional in deep water. You might contact Airmar directly - their supt. is pretty good and they OEM most of the ducers on Sea Ray et als.

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