I presume you're using the BY-1 alone without an external keyer? If so, tap the K2's MENU button, scroll through the Main Menu options until you reach INP (for the key/paddle INPut), then hold EDIT (same button), then select PDLn if your paddle is wired "normally." Tap the MENU button twice to exit the configuration mode. Use PDLr if dot/dash sides are reversed from what you expect. See page 99 of the K2's Rev. I manual for more detail. Hope this helps!