Radio Check

A Radio Check is a procedure in motorsport where team members, drivers, race control, and marshals verify that their communication systems are working properly before or during an event.

During a radio check, one party initiates by saying "radio check," and others respond to confirm they can hear clearly. This essential safety measure ensures critical information about track conditions, incidents, or strategy can be communicated without issues during high-pressure race situations.

A typical exchange might be: "Driver, radio check" from the engineer, followed by "Reading you loud and clear" from the driver. If there are problems, teams can troubleshoot before racing begins, preventing potentially dangerous communication failures.