Lately I am finding my sonar losing bottom around 3 ft. Depth indicator starts flashing. Transducer is ‘in hull’. Ducer going bad or head unit or something else. Thx
What brand / model graph?
Flashing tells me there may be an alarm set.
Do you have a depth alarm set?
Turn alarm off and see what it does.
Does it hold bottom below 3ft at speed? Stopped vs idle vs in gear vs pre-plane vs on plane.
I dont have an alarm set for depth but for reference my Humminbird reads down to 1.8’ before giving false readings i.e. 450ft, 999 ft, etc. False reading show up when the transducer is on the bottom or buried in the mud.
Hi its a Garmin 740S with a Aimar P79 shoot through the hull transducer. There is definitely no issue with the installation of the ducer.
Good idea on the alarm setting. I was fooling around with some screens and may have accidently turned something on
It starts flashing at 2.4ft and I have to restart the unit for it to go away. Once reset it is ok. It never loses bottom any other time, idle or WOT.
Thanks for the tips. Im planning on going out tomorrow and will play with it.
Thanks again!