After the FCC gave Ligado Networks the green light to pursue a 5G network on a frequency band dangerously close to that used by GPS, lawmakers have taken action to stem the potential fallout of such a move.As part of the recent defense bill that went into effect on Jan. 1, the Department of Defense will now conduct an independent review to assess the details of the Ligado agreement and determine the costs any interference might pose for the aviation industry. Such costs might include new equipment and infrastructure costs needed to protect against interference, and given the potentially far-reaching effects of any frequency disruption, preliminary estimates suggest such expenses could be steep.
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