Hamlib

Hamlib is a free and open-source software library that provides a common interface for controlling amateur radio transceivers, receivers, and accessories. It is designed to simplify the development of ham radio applications by abstracting the differences between various hardware models. This allows developers to write software that can interact with a wide range of radio equipment without needing to implement specific control protocols for each device.

The library supports a large number of radio models from different manufacturers, including Icom, Yaesu, Kenwood, FlexRadio, and Elecraft, among others. It handles communication protocols, command sets, and data formats specific to each radio. Hamlib provides functions for setting frequencies, modes, bandwidths, transmit/receive switching, and retrieving radio status information.

Hamlib is widely used in various amateur radio software projects. This includes logging programs, digital mode decoders, antenna rotators control, remote station operation software, and contest logging applications. Its modular design allows individual radio backend modules to be updated or added without affecting other parts of the library. The project is actively developed by a community of amateur radio enthusiasts and software developers. It is available for multiple operating systems, including Linux, Windows, and macOS.