dear friends, we have deployed 4 accces point with 90° sector antennas in a tower (55m hight), acces point have it's own frequency 5.7ghz range.
near the tower (300m) sm is registering(-60db) , at the site 3km from tower, we have -74db, registering&scanning constantly but no link at all. link planner is good, no obstruction. we have tested 2 sm at the site, same issue, not registered. we are out of ideas.
at the tower we have a CMM4 with GPS, all units are upgrade ate the laste version 15.0.3
hera are some information, any help will be gratefull