Quisk – software defined radio transceiver

Quisk is a software defined radio transceiver designed particularly for amateur-radio operation. It processes I/Q samples supplied by radio hardware, tunes and filters the selected signal, demodulates received audio and sends transmit audio back to compatible hardware.

Low-latency operation is an important part of the design, particularly for full break-in CW. Quisk can also be used for SSB, AM and digital operation, and its hardware abstraction makes it suitable for several different styles of SDR transceiver.

This is free and open source software.

Key Features

  • Complete SDR receiver and transmitter with graphical controls and spectrum display.
  • Designed for low-latency CW operation.
  • Supports SSB, AM and other common amateur-radio modes.
  • Handles receiver I/Q data delivered by sound card, Ethernet or USB.
  • Microphone input can be processed and sent to compatible transmitting hardware.
  • Supports SoftRock radios connected through a sound card.
  • Works with Hermes Lite hardware.
  • Supports HiQSDR and Odyssey radios.
  • Can operate radios based on the Hermes protocol.
  • Provides support for additional hardware through radio-specific Python modules.
  • Can be used as a panadapter alongside conventional transceivers.
  • Integrates with Fldigi for digital-mode operation.
  • Can exchange data and audio with WSJT-X.
  • Interoperates with station-control and logging software using Hamlib-compatible interfaces.
  • Supports FreeDV digital voice where the necessary components are available.
  • Configuration system allows several radio profiles and station arrangements to be maintained.

Website: james.ahlstrom.name/quisk
Support:
Developer: James Ahlstrom
License: GNU General Public License v2.0

Quisk in action

Quisk is written in Python and C. Learn Python with our recommended free books and free tutorials. Learn C with our recommended free books and free tutorials.


Related Software

Software-Defined Radio Tools
SDRangelSDR Rx/Tx software for Airspy, Airspy HF+, BladeRF, HackRF, +
SigDiggerDigital signal analyzer and graphical front end for Suscan
rtl_433Receives and decodes radio transmissions
GqrxSDR powered by the GNU Radio and the Qt graphical toolkit.
sdrtrunkJava application
Qt-DABDAB decoder
AbracaDABraDAB and DAB+ Software Defined Radio (SDR) application
OpenWebRXMulti-user SDR receiver
inspectrumRadio signal analyser for examining captured signals
welle.ioDAB and DAB+ software defined radio
SDR++ CECommunity-driven fork of SDR++
OpenWebRX+Improved version of OpenWebRX
multimon-ngDecoder for a broad range of digital transmission modes
GNU RadioSignal processing runtime and signal processing software
DABlinDAB/DAB+ audio service from a live transmission / stored recording
sdr_j_fmFM receiver
AetherSDRLinux-native client for FlexRadio Systems transceivers
QuiskDesigned for low latency CW operation
AIS-catcherVersatile AIS receiver for software-defined radio
gr-dabGNU Radio Digital Audio Broadcasting module
rtl-dabDAB/DAB+ receiver to use with rtl-sdr sticks

Read our verdict in the software roundup.


Best Free and Open Source Software Explore our carefully curated directory of recommended free and open source software, covering every major software category.

The directory forms part of our extensive collection of articles for Linux enthusiasts. It includes hundreds of detailed reviews, together with free and open source alternatives to proprietary software from companies such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk.

LinuxLinks also covers interesting projects worth exploring, Linux-compatible hardware, free programming books and tutorials, and much more.

Know a useful free and open source Linux application that we haven’t covered? Tell us about it using our submission form.
Subscribe

Please read our Comment Policy before commenting.

Notify of
guest
0 Comments
Oldest
Newest Most Voted