Apr 09, 2020· On September 26, 2019, 5G wireless was turned on in Wuhan, China and also launched in parts of New York City (areas of uptown, midtown and downtown Manhattan, along with parts of Brooklyn, the Bronx and Queens), the difference being that the 5G grid in Wuhan was much denser, with about ten thousand antennas—more antennas than exist in the whole U.S.A., all concentrated in one …