 To use Lorenz, a conventional radio was tuned to the transmission, and the operator would listen for the signal and try to determine if they heard dots or dashes. If they heard dots, the short 0.2 s pulse, they would know they were too far to the left, and turned to the right in order to reach the centreline. Dashes indicated they should turn left. In the centre the receiver could hear both signals, which merged to form a steady tone, the equisignal.
