Early data on impact of C-band spectrum on 5G performance looks positive for the two US operators involved, AT&T and Verizon, but it is too early to tell whether findings of signal drop-off with distance from base stations in other midband frequencies, including CBRS, will have a significant impact. Such power drop-off has become more relevant to cell-edge performance in the wake of the agreement by AT&T and Verizon to reduce C-band power output by all base stations for the first six months of operation, with an even bigger reduction near airports. This followed the eleventh hour intervention by the US Federal Aviation Administration (FAA) to warn pilots of aeroplanes and helicopters that C-band deployment could interfere with legacy radio…