When Pak John told me they have over hundreds of wifi base station on a single roof top in Indonesia, I don’t believe them at all. Until I see this…
And repeat that picture on every inch of the roof. Many microwave links of course but most surprising, most of them are 2.4Ghz base stations (microtik, senao, canopy are popular). Even with directional antennas, how they cope with the interference is amazing…