CW Morse

CW Morse turns Morse code from your radio into text, live, on your iPhone or iPad.

Hold your phone near the speaker, or connect the radio's headphone output, press Listen, and watch the letters print on a teleprinter-style paper roll as they arrive. No setup and no numbers to guess: CW Morse finds the signal and works out the sender's speed by itself.

FINDS THE TONE FOR YOU A live tuning dial shows every tone between 250 and 1500 Hz. CW Morse locks onto the strongest steady signal and ignores hiss and hum. Two stations close together? Tap the one you want on the dial to lock it, and tap Auto tune to let go.

LEARNS ANY SPEED From a slow 5 wpm to a fast 50 wpm, the decoder measures dots, dashes and the gaps between them, and keeps adjusting when the sender speeds up or slows down. Hand-sent code with uneven timing is handled too.

READS THROUGH THE NOISE Static, fading and changing volume are part of radio. CW Morse sets its own threshold from moment to moment, so weak signals still print and noise does not fill the page with random letters. A signal meter shows how far the tone stands above the noise.

SEE EVERY ELEMENT A live trace shows each dot and dash as it is keyed, and the character being built appears large next to it, so you can follow along and learn by ear and eye at the same time.

TRY IT WITHOUT A RADIO The built-in demo transmitter plays real Morse with noise and fading at a random tone and speed. Watch the decoder lock on and adapt in seconds.

MADE FOR THE SHACK • Letters, numbers, punctuation and common prosigns such as SK, KA and AA • Manual tone, speed, squelch and filter width when you want full control • The screen stays awake while you listen • Copy or share the decoded text • A light tap with each new letter, if you like • Works offline. Audio is processed on your device and never recorded or uploaded

FREE TO TRY, PAY ONCE Every listening session is free for 5 minutes, and the demo is always free. One in-app purchase unlocks unlimited listening forever on all your devices, shared with your family through Family Sharing. No subscription and no ads.

TIPS FOR THE BEST RESULTS A cable from the radio's headphone or line output gives the cleanest signal. Over the air, keep the phone close to the speaker in a quiet room and set the radio volume so the tone shows clearly on the dial.

For radio amateurs, shortwave listeners, Morse learners and anyone curious about what those beeps are saying.