How many meters can i have between the meshdevices?

[ninjatill]

There's no official number published yet but the guideline is 10s of meters... maybe up to 30m line-of-site. There is some discussion on this thread about testing the mesh network stability:

Boron + 5-Xenon Setup Questions

I think @rickkas7 said in a different thread the external antenna selection on the Xenons currently do nothing. May want to verify this before thinking it makes no difference when a external antenna is connected.