3. Equipment needed to go racing
This is a small device that is fitted to your car, and powered via the reciever. In the past transponders wer not personal, a bit bigger with a built in battery, and needed to be returned after each race so the next heat could use them.
Now with personal ones, they are set and forget. With a one off cost, they are a handy device. When you cross the loop we have an accuracy to three decmial places of a second.