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Drones get bad cell service, but an old ambulance will help

Researchers at Carnegie Mellon University are building a model of cell coverage up in the air

  • A view of Carnegie Mellon University's Crossmobile seen from a drone during a field test.

  • Carnegie Mellon University's Crossmobile seen here with its mast extended during a field test.

  • Carnegie Mellon University's Crossmobile seen here with its mast extended during a field test.

  • Carnegie Mellon University's Crossmobile seen here with its mast extended during a field test.

  • A drone deployed by Carnegie Mellon University as part of the university's research into wireless signal strength

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