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Garmin 3012

Old 10-05-2008, 02:14 PM
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Default Garmin 3012

Have a customer with a 3012. The depth reads accurate at standstill but never underway. First thing I assumed was turbulance. Hauled boat and smooth hull with no causes of turbulance forward of transducer. Transducer is tilted element so its almost flat with hull. can anyone think of causes / fixes for this.for this.

Old 10-06-2008, 09:58 AM
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Default Re: Garmin 3012

On most of my boats, the transducer appears to be tilted slightly front high. If the front of the transducer is in any way low, it will scuff the water and form cavitation. If you can't raise the front of the transducer (slightly), try lifting the entire transducer 1/4 of an inch.

Keep in mind, that as the boat comes up to speed, the water pressure on the transducer will level out the (slightly front high) transducer. So, at speed, the transducer will be level.

The best way to think of transducers is that they're a water ski. You want that transducer skiing across the surface of the water, not dragging, foaming, tearing at the water.

The most subtle changes in angle will make striking differences in your display.
Old 10-06-2008, 10:21 AM
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Default Re: Garmin 3012

Its a tilted element so placement and tilt of the ducer isnt the problem. The things you mentioned are seen with transom mounts.
Havent heard this issue with the tilted element, hear it all the time with transom mounts. I would give Airmar a call.

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