Garmin Fish Finder/Depth Finder

[Philster]

At speeds above 10-15 knots, I lose the reading on the depths (freezes at last number) and lost bottom mapping. Comes back when I slow down.

I inherited this device. Don't know much about this style. All I ever used was a basic sounding device.

Is this behavior normal? If not, what can be done to ensure I don't lost the reading?

 

[dingbat]

Re: Garmin Fish Finder/Depth Finder

It's normal behavior if your transducer is installed incorrectly. The water around a transducer has to be free of turbulence to operate correctly.

Transom mounts always have issues given the amount of turbulence on the transom. This is the main reason people go with shoot thru or thru hull transducer installations