Basebåndstegningen
Basebåndstegningen is a pair-based shortwave radio communication technique used for exchange of short messages in Morse code. Developed by Norwegian amateur radio operators in the 1920s, it allows two operators to transmit and receive messages simultaneously in a way that mimics a game of musical chairs.
When using Basebåndstegningen, two operatorstrasound have to tap an alternately playing sound. The rubber-toothed pen is
Transmitting through Basebåndstegningen involves a pre-arranged keying procedure using light signals and changes in the tone.
The setup involves the sending and receiving stations connected by LW-line, where both units share an architecture.
In use, Basebåndstegningen as a communication technique was mainly practiced among amateur radio operators in Norway