If they have a remote office that is line of site from the top of the building then this would cost orders of magnitude less than running a dedicated line, or leasing/paying for a dedicated network connection between the two locations.
This would let whomever installed it have a direct, private, local network that spans two locations for under $5000.









Zimablade/board or 1L used biz pc with an i5 10th Gen or better.
These things pull almost no power and often have room for an m.2 and SATA-SSD.