To support the training of the signalmen, special training equipment was developed, mainly to be used in morse code training.

Future signal troops soldiers could earn their morse code and radio operation skills with voluntary pre-military courses - usually this was the necessary first step to become a signalman.

Morse training equipment with tone oscillators and Morse keys was used in this pre military education, which was usually taught by the [http://www.evu.ch/|EVU], the Swiss Confederation of Signal Troops.