By feeding the audio from a transceiver into the computer's sound card, MRP40 decodes the Morse code and displays the text on the screen in real-time.
Connect your computer’s audio output to the radio’s data input, or use an optoisolated interface to close the radio's CW key circuit via a virtual COM port (USB-to-Serial adapter). Step-by-Step Setup Guide mrp40 morse code decoder
Beyond just listening, MRP40 allows users to transmit CW directly from their computer keyboard. It encodes keystrokes into CW signals, making it an effective tool for sending high-speed (QRQ) code without needing a traditional paddle or key. Compatibility and Setup By feeding the audio from a transceiver into