Library for handling analog signal processing functions. These functions are also in gnuradio-core. Part of the main gnuradio build.

This is the gr-audio library, used to connect to audio sources (mic-in) and sinks (speaker-out) ports on a computer. The underlying hardware driver is system and OS dependent and this module should automatically discover the correct one to use. Part of the main gnuradio build.

All the functions for doing digital modulation and demodulation, including bpsk, qpsk, gmsk and ofdm signals. Part of the main gnuradio build.

ATSC support, gr-atsc ported to a new framework, as well as DVB-S2, DVB-T, DVB-T2 digital video broadcast standards. Part of the main gnuradio build.

Handle forward error correction processing in gnuradio. Implements the GNU Radio FEC API, supporting encoders and decoders for no-op dummmy, repetition, and convolutional classes. Part of the main gnuradio build.

GNAT is a compiler for the Ada programming language. It produces optimized code on platforms supported by the GNU Compiler Collection (GCC).