text: If sender0 has code (1,–1) and data (1,0,1,1), and sender1 has code (1,1) and data (0,0,1,1), and both senders transmit simultanéously, then this table describes the coding steps: Because signal0 and signal1 are transmitted at the same time into the air, they add to produce the raw signal: This raw signal is called an interference pattern