So, as a general rule the higher the frequency the shorter the distance. 5Ghz and higher bands might offer better throughput for short distances but they do not have the same long distance capabilties as the much older 2.4 Ghz frequency, so that is likely where you'll get your best range. On paper, you COULD get as much as 300ft range using the 2.4Ghz frequency so long as there are no obstructions, but that is for PURELY line of sight with no walls. The fact that you might have to put your hubs inside means there WILL be at least a single wall obstruction unless you have some kind of antenna system that extends outside the walls which I haven't seen on these kinds of devices some I'm skeptical of that being an option.
I think if you are broadcasting from the primary router INSIDE the main building to a hub located INSIDE another building, you'll be pretty much in the same boat as within a house where the signal has to pass through multiple walls usually and that likely reduces your probable reach to something closer to 150ft, and even then the signal may not be particularly strong depending also on the specific capabilties of the network adapters being used to access the signal through your hubs or repeaters.
Networking isn't my strongest area and we have some others here who surely will chime in with more and better information than I can provide, but you might have to consider other options that allow for amplification of the repeated signal beyond the initial building that is closest IF you are even able to get a very good signal there.
Running ethernet cable to at least the first building and a wireless signal after that or even cable to all buildings might be a necessity. I don't think you need "the most powerful system available" because a lot of that is marketing and a lot of it is simply higher bandwidth and throughput within a close range and I don't think that the mesh system is what you really want either. For long distance signal you can probably get by with any 2.4Ghz capable N, AC or AX configuration that is compatible with your Starlink hardware, which admittedly, is an unknown to me since it's a relatively new technology. It might be a better option to see if it's possible to purchase additional Starlink modems and equip each building with it's own modem but I don't know if they'll allow you to do that or not without having additional accounts. Worth checking with them though because if you can do it like that then every device will get identical capabilities.
@kanewolf ,
@USAFRet or
@bill001g can probably steer you better than I can but at least some of this question is simply answered by the basic specifications of the various frequencies. New WiFi modes don't really change that at all. Only lower frequencies or more efficient antenna systems when used with things like beamforming will really have much impact on wireless signal distance unless I'm even more clueless than I already know I am in this area.
Facebook
Twitter
Instagram