Aptdec decodes Automatic Picture Transmission (APT) images. These are medium resolution images of the Earth transmitted by, among other satellites, the POES NOAA weather satellite series. These transmissions are on a frequency of 137 MHz. They can be received using an inexpensive antenna and a dedicated receiver.

SoapySDR is a library designed to support several kinds of software defined radio hardware devices with a common API.

This package provides Cgo bindings to PulseAudio's Simple API, to play or capture raw audio.

SerialDV is a minimal interface to encode and decode audio with AMBE3000 based devices in packet mode over a serial link.

This is a GNU Radio block to correct IQ imbalance in quadrature receivers. It's composed of two main block:

• Fix: Given a phase and amplitude error, it will correct a complex signal.

• Optimize: Attempts to auto-detect the phase and amplitude error to feed to the fix block above.

This package provides support for sound card devices to the SoapySDR library. It also adds hamlib support, which provides basic gain and frequency controls for certain tuners which may be paired with an audio device.

Gqrx is a software defined radio (SDR) receiver implemented using GNU Radio and the Qt GUI toolkit.

SDR++ is a software defined radio software for various hardware.

Aldo is a morse code learning tool providing four type of training methods:

• Classic exercise,

• Koch method,

• Read from file,

• Callsign exercise.

This package provides a library and a program to decode several digital voice formats.

Command line utilities and a C library for controlling the HackRF Software Defined Radio (SDR) over USB. Installing this package installs the userspace hackrf utilities and C library. To install the hackrf udev rules, you must extend 'udev-service-type' with this package. E.g.: (udev-rules-service 'hackrf hackrf #:groups '("dialout")).

SatDump is a generic satellite data processing software. For example, it can decode the telemetry and images sent by some meteorological satellites.

Fldigi is a software modem for amateur radio use. It is a sound card based program that is used for both transmitting and receiving data by connecting the microphone and headphone connections of a computer to some radio hardware.

Dream is a software implementation of a Digital Radio Mondiale (DRM) receiver.

unixcw is a project providing the libcw library and a set of programs using the library: cw, cwgen, cwcp and xcwcp. The programs are intended for people who want to learn receiving and sending morse code.

This is a generic data receiver, mainly for decoding radio transmissions from devices on the 433 MHz, 868 MHz, 315 MHz, 345 MHz and 915 MHz ISM bands.

This package provides the driver and utilities for controlling the Airspy HF+ Software Defined Radio (SDR) over USB.

To install the airspyhf udev rules, you must extend udev-service-type with this package. E.g.: (udev-rules-service 'airspyhf airspyhf)

JS8Call is a software using the JS8 digital mode (a derivative of the FT8 mode) providing weak signal keyboard to keyboard messaging to amateur radio operators.

wfview is a program to control modern Icom radios and view the spectrum waterfall. It supports at least the following models:

• IC-705

• IC-905

• IC-7300

• IC-7610

• IC-7850

• IC-7851

• IC-9700

DVB-T dongles based on the Realtek RTL2832U can be used as a cheap software defined radio, since the chip allows transferring the raw I/Q samples to the host. rtl-sdr provides drivers for this purpose.

The default Linux driver managing DVB-T dongles as TV devices doesn't work for SDR purposes and clashes with this package. Therefore you must prevent the kernel from loading it automatically by adding the following line to your system configuration:

(kernel-arguments '("modprobe.blacklist=dvb_usb_rtl28xxu"))

To install the rtl-sdr udev rules, you must extend 'udev-service-type' with this package. E.g.: (udev-rules-service 'rtl-sdr rtl-sdr)

This library provides convolutional and Reed-Solomon codes for forward error correction. It also includes a compatibility layer so that it can be used as a drop-in substitute for libfec.

redsea is a lightweight command-line FM Radio Data System (FM-RDS) decoder. Redsea can be used with any RTL-SDR USB radio stick with the rtl_fm tool, or any other software-defined radio (SDR) via csdr, for example. It can also decode raw ASCII bitstream, the hex format used by RDS Spy, and audio files containing multiplex signals (MPX).

This is a C++ library implementing fast GF(256) Cauchy MDS Block Erasure Codec.

Lime Suite NG is a collection of software supporting several hardware platforms based on the LMS7002M transceiver under the LimeSDR name. It provides a C++ API, command-line tools, a GUI, and plugins for multiple SDR tools.