It was found, experimentally, that as the radiated noise moved away from the interference source, in this case the switches, it decreased, and that this noise was the one interfering with the sensing signals and in general with the entire circuit.
Se comprobó experimentalmente que, a medida que se aleja de la fuente de interferencia, en este caso de los interruptores, el ruido radiado disminuye, y que este ruido era el que interfería en las señales sensadas y en general en todo el circuito.