Zero-Beat: Landing Exactly on Their Frequency Zero-beating aligns your signal with the station you are calling. This guide explains the pitch geometry and the one-second habit that fixes it. Quick facts Cause tone differs from sidetone Effect offset in Hz Filters 200-500 Hz wide Spot button sounds sidetone Habit match, then call Tune the station's tone until it equals your sidetone pitch; now your transmitted signal sits exactly where their filter expects it. In pileups and on narrow filters, zero-beat is the difference between existing and not. Start now: https://morsecodeworks.com/ Morse Code Works - free Morse code tools and guides. Reference chart