Ham Radio Control Libraries
Introduction
The Ham Radio Control Libraries, Hamlib for short, is a development effort to provide a consistent interface for programmers wanting to incorporate radio control in their programs. Hamlib is not a complete user application, rather, it is a software layer intended to make controlling various radios and other shack hardware much easier. Hamlib will allow authors of such software as logging programs, digital communications programs, or those wanting to develop the ultimate radio control software to concentrate on the user interface and the basic function of the program rather than radio control.
Hamlib Design
Motivation
Most recent amateur radio transceivers allow external control of their functions through a serial interface. Unfortunately, control commands are not always consistent across a manufacturer's product line and each manufacturer's product line differs greatly from its competitors.
Hamlib attempts to solve this problem by presenting a "virtual radio" to the programmer by providing an API to actions such as setting a given VFO's frequency, setting the operating mode, querying the radio of its current status and settings, and giving the application a list of a given radio's capabilities. Unfortunately, what can be accomplished by hamlib is limited by the radios themselves and some offer very limited capability.
Other devices, such as antenna rotators, can be placed into the hamlib control scheme. Other recent developments include an RPC network interface and a USB interface capability. Language bindings are provided for C, C++, Perl, Python, and TCL.
Help wanted!
Hamlib was originally the project of Frank Singleton, VK3FCS/KM5WS and Stéphane Fillod, F8CFE. In the Hamlib 1.1.0 ALPHA announcement, Frank said, "Get on board and help us write the frontend and backend libs for all the rigs out there. If we can talk to it, we want to control it!!"
The latest news is available on Hamlib news.
