Intermittent Depth reading on Raymarine e125

Perhaps the transducer location is not ideal?
If too far forward then air may get under it when on the plane?
 
A word of warning before you try relocating the transducer - which btw could be difficult, depending on its type (transom mount or through hull?).
The quality of the thing itself also matters, in fact some transducers simply don't work above a certain speed regardless of their placement.
If the transducer was factory installed, it's unlikely that you can do much better by moving it anywhere else.
Accepting to not have depth reading while planning is a much easier workaround.
Also because it's very unlikely that the sounder would save the day if you're heading towards a sand bank at 30kts... :rolleyes:
 
Through hull+factory installed=waste of time trying a better placement.
With the need to close the hole, on top of it.
In your boots, I'd live with what you've got. If the reading is reliable and stable at low speed, that's all you need, imho.
 
Boat next door to me had full nav gear refurbished,latest kit and fitted by margarine.
Depth stopped working at any speed after a lot of staffing margarine had specified "wrong" transducer
Boat had to be lifted and different unit installed at dealers expense.
Please insert Ray marine.
 
My Navman depth sounder started to give false readings and was intermittent underway. Fitted an 'in hull' Airmar P79 which was ok (not perfect) until lift out then replaced the Navman with an Airmar B50 through hull.
 
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