Ducati test rider Michele Pirro was able to exchange spoken messages with team manager Davide Tardozzi over radio during Tuesday's MotoGP test in Barcelona. In the first minutes of the official test ...

Radios are communication systems that send and/or receive electromagnetic waves. Devices such as citizens’ band (CB) radios, walkie-talkies, and handie-talkies are two-way radios that can be used for ...