Morse (CW) Transmitter
Send Morse code
What it does
SimpleType a message and this app sends it out as Morse code — the dots and dashes you learned about in the Morse receiver. It's a classic ham radio thing to do: with a licence, people actually hold conversations across the world using nothing but these beeps.
It's also a fun way to practise: send a word, then decode it on another device and see if the dots and dashes match what you expected.
How it works
SimpleThe app looks up each letter's dot-and-dash pattern and switches the transmitter on for the right lengths — short for a dot, three-times longer for a dash, with the correct silences in between. A receiver hears those beeps and can turn them back into your letters.
How to use it, step by step
Simple- Get help from a licensed ham, or use a dummy load.
- Open 'Morse TX' and type your message.
- Set the speed (WPM).
- Send it, and decode it on another device to check.
Examples
Send a repeating callsign beacon on a ham band under licence.
Transmit a word and decode it on another device to check your timing and the code.
Step the WPM up gradually and watch how the decoder (and your ear) keep pace.
Tips & things to try
- CW's tiny bandwidth is why it 'gets through' when voice fails — a great weak-signal mode.
- Start slow (5–10 WPM) when practising by ear alongside the decoder.
- Operate under a licence on ham bands, or keep it to a dummy load for testing.