Airgrid 27db and 23db

Franco,  the distances typically used with an AirGrid, 10km and more, have been found to have better thoughput on 20Mhz or smaller bandwidth.   The most common channel width in use is 10Mhz because it has the best thoughput for the typical distances in use.     40Mhz isn't an option, because it wasn't believed anyone would end up using it.  But you can manually modify the config file to try it out.

802.11s mesh mode would be in consideration with a change of OLSRv1 to OLSRv2 or BATMAN-adv.   Such a change makes an AREDN node incompatible with prior firmware versions.   It means groups have to upgrade all the devices on their network all at the same time, can be 100s of nodes to coordinate.  We wouldn't roll out an incompatible change unless the benefit was significant to do so.  The idea of AREDN is, anyone can power on the device and it will work and join the network.   We avoid settings that break this compatibility.

Joe AE6XE