A C++ library for modulating and demodulating various digital modes. It is designed to be easy to use/integrate into other projects.
For detailed documentation, please see https://signaleasel.joshuajer.red.
- AFSK1200
- Modulation and Demodulation
- ASCII mode for sending text
- AX.25 UI Frames (AFSK1200 with CRC, bit stuffing, NRZI)
- Modulation and Demodulation
- APRS
- Modulation and Demodulation
- (Compressed Location, Telemetry, Messages with ACK/REJ, User Defined, Invalid Format)
- SSTV (Robot36, Optional callsign overlay)
- Modulation only
- PSK31 (Fldigi Compatible BPSK/QPSK 125, 250, 500, 1000 baud)
- Modulation only
- ARRL Specification using Varicode and Convolutional Encoding, supports Fldigi
- Also supports raw binary PSK without encoding
- Morse Code For adding optional station identification in all modes
- Modulation only
Important: SSTV requires that you have magick++ installed with the modules related to fonts and the image formats you want to use. This is optional. If you want to use the other modes, then you do not need any 3rd party libraries. This library was developed on a Linux system but it may work on others.
Build:
# Install Prerequisites
apt install libpulse-dev -y
# Clone the repository with submodules (WavGen and SSTV-Image-Tools)
git clone --recurse-submodules https://github.com/joshua-jerred/MWAV.git
# Create and enter the build directory
cd MWAV && mkdir build && cd build
# Configure
cmake -DSSTV_ENABLED=OFF .. # Disable SSTV if you don't have magick++ installed, default is ON
# Build
make SignalEasel
# Install
# Installation is currently not supported, the library is in this directory
# The header file is in the include directorysudo apt-get update
sudo apt-get install build-essential
sudo apt-get install libjpeg62-dev libpng-dev libfreetype6-dev
git clone https://github.com/ImageMagick/ImageMagick.git ImageMagick-7.1.0
cd ImageMagick-7.1.0
./configure --with-modules
make -j8
sudo make install
sudo ldconfig # May need to do more for linking