[TG] [TG11] make Axiom source of depth: AirMar N2K

[gulfoslides]

So the boat is IN the water. And still not seeing depth.

But then I called AirMar and was told to test the AirMar P79 in a 5 gallon bucket of water. When I did that, the Axiom began to see depth! WaLa ! So then I moved the P79 back to the spot I had it in the boat, and once again, no depth...

So then I moved it closer to the center-line of the boat (in the bildge) and WaLa, the Axiom started seeing depth!

Moral of the story: hook up the AirMar to the Axiom, TEST the location you plan to install it on and make sure you have a depth readout. If you don't see a valid depth readout you have a blockage. Move the AirMar to a new location until you have a depth reading in the Axiom.