SGR88 They use Motorola equipment exclusively, and it is set up in an amazing variety of systems. The team can also use the car's accelerometers as an inertial navigation system to plot the position of the car around the course. When the car passes the beacon, the car sends a signal back to the pit; this allows the team to record accurate timing splits around the track. Whereas a hobby-grade car has separate electronic components that are individually replaceable if they fail, toy-grade cars are typically made with cheaper components that are harder to find as spare parts, and a single electronic circuit board is integrated into the design of the vehicle. At a typical race there are several thousand one-way and two-way radios sharing the airwaves! The teams are responsible for their own equipment, and many enlist the help of Racing Radios for purchasing equipment, service and accessories.|Fasten the Sounder to its Backplate