MiFi or WIFI or HotSpot - experts required!

[Very Annoyed]

Have you got an Eberspacher heater running?

Wouldn't be without it in this weather!!

 

[Very Annoyed]

It’s the transducer of the depth finder transmitting. Not sure with raymarine, but there should be an option to pause or stop in the menu.

I thought it might be the fish finder, switched that off! Didn't see an option for the depth finder I'll have a look :encouragement:

 

[jimmy_the_builder]

Wouldn't be without it in this weather!!

Depending on the installation, sometimes the Eber fuel pump makes a quiet ticking. But as FF says above, based on your own diagnosis it is most likely to be the tx of the depth sounder.

 

[jimmy_the_builder]

I thought it might be the fish finder, switched that off! Didn't see an option for the depth finder I'll have a look :encouragement:

Just turn all the electronics off and leave the heating on, that should take to you to the answer.