The three "never repeats" options are generated fresh each time you hit Send — nothing to memorize. The others are fixed reference text.
This text stays in your browser — it's only used to generate the audio.
Live AI mode: replies come from Claude in real time, synthesized to Morse. Limited to 10 exchanges per conversation. If the live connection isn't available, this falls back to an offline pattern-matched demo — clearly labeled either way.
Exchange 0 / 10
Farnsworth spacing (send at higher character speed, extra gap between letters)
Radio static (background band noise, all modes)
Signal fade (slow HF-style strength drift, all modes)