@hamstudy/mt63

TypeScript implementation of MT63 digital mode for amateur radio communication.

About

This project provides a TypeScript library for encoding and decoding MT63 digital mode signals, commonly used in amateur radio. The implementation is based on the fldigi MT63 code and developed by the HamStudy.org team.

Status

🚧 Work in Progress - This library is currently under development and not yet ready for production use.

Installation

npm install @hamstudy/mt63

Usage

import { MT63tx, MT63rx } from '@hamstudy/mt63';

// Encode text to MT63 audio samples
const encoder = new MT63tx(1000, false); // 1000Hz bandwidth, short interleave
const { samples, sampleRate } = encoder.encodeString('Hello World');

const audioBuffer = audioCtx.createBuffer(1, samples.length, sampleRate);
audioBuffer.copyToChannel(samples, 0);

const audioSource = audioCtx.createBufferSource();
audioSource.buffer = audioBuffer;
audioSource.connect(audioCtx.destination);
audioSource.start();

// Decode MT63 audio to text
const decoder = new MT63rx(1000, false, 4, 8.0); // bandwidth, interleave, integration, squelch
const decodedText = decoder.processAudio(audioSamples);

Support Our Work

To support our efforts, check out:

• SignalStuff.com - Our main source of funding
• HamStudy.org App Store - Well engineered study apps

HamStudy.org is sponsored by Icom, which means that in a round-about sort of way Icom also sponsors this project. They really do a lot to build the ham radio community in the US so support them in whatever ways you can!

License

@hamstudy/mt63 is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

@hamstudy/mt63 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this project. If not, see http://www.gnu.org/licenses/.