Topic: Helix 5

[Dewydog]

 When I switch frequency views in 2d sonar my 440 490 screen has no returns.is this something with my unit or is it not suppose to show anything?

[rnvinc]

1st Restore Defaults to get the unit to factory defaults and test  ...

If this issue persists try adjusting the Sensitivity  ... it’s not uncommon to need a different Sensitivity selection for different frequencies  ...

A good general rule for 2d Sonar Sensitivity is to increase Sensitivity until there is too much clutter on the screen and then back it off a little  ...

Rickie

[Dewydog]

I did that still no returns or bottom.in simulation mode but the depth readings change like it should.

[Dewydog]

Also when moving sensitivity up the screen does not change no returns or clutter? Maybe I've got the wrong transducer for the 440/490 frequency. It's a xtm 9 25 t.THANKS!

[rnvinc]

What is the full model name of the HELIX 5  ... ??

Rickie

[Dewydog]

Helix5 chirp di gps g2