[LW] [LW11] AXIOM TO AXIOM DATA

[Eheim]

I have a Axiom 7RV at the nav station. want to add a second to the helm station. Plan on connecting the 2 by raynet cable. can I use a basic Axiom 7 at the helm and still see the RV and other data or does it have to be a RV model? will the charts cross over the Raynet or do I need another chart? Do the charts have to be the same type, or could I use light house on one and Navionics on the other? I understand one has to be the data master and the other is the slave correct? Also wondering how to display a Yacht Devices Boat Barometer on my system. I plugged it in and it is sensing but not sure how to get it to display.