Several Axiom questions

[Solandri]

Q1. What are the dimensions of the different Realvision 3D transducers? They're not listed on the respective product pages.

Q2. Navionics' compatibility guide indicates that the Axiom MFDs are not compatible with Navionics Platinum+ (3D and satellite overlays). Is this really true? If so, will compatibility be added in a future update?
https://www.navionics.com/usa/support/co...ity-guides

Q3. If I wish to use RayView and RayControl on my tablet with an Axiom MFD, do I need to connect to the WiFi hotspot generated by the Axiom? Or can I connect to an external WiFi network, connect the Axiom to the same external WiFi network, and connect my tablet to the Axiom that way? (The first method forces me to switch WiFi networks every time I wanted to switch my tablet between chartplotter and Internet. The second method lets me use the tablet for both chartplotter and Internet simultaneously.)

Thanks!