Agilent Technologies pulse generators are used for testing radar communication systems in the military industry, and as demonstrated in this product note, the aviation industry.

A trigger pulse train of double pulses is sent from the control tower’s radar system to an airborne plane. The plane responds with a standard signature signal which is sent back to the control tower. This occurs up to 450 times per second. The control tower receives the signal, recognizes its signature, and then analyzes the delay to determine the distance between the tower and the airborne plane.