NAME¶
quisk - a Software Defined Radio (SDR)
DESCRIPTION¶
QUISK is the software that controls a receiver and transmitter. QUISK rhymes
with "brisk", and is QSK plus a few letters to make it easier to
pronounce. QSK is a Q signal meaning full breakin CW, and QUISK has been
designed for low latency CW operation. It works fine for SSB and AM too.
- It currently runs under Linux using ALSA sound drivers or PortAudio
- and offers these capabilities:
Quisk can control the HiQSDR.
As a receiver it can use the SDR-IQ by RfSpace as a sample source. There are
several decimation rates available. The screen shots below were taken
using the SDR-IQ. The QUISK receiver will read the sample data, tune it,
filter it, demodulate it, and send the audio to the sound card for output
to external headphones or speakers.
As a receiver it can use your soundcard as a sample source. You supply a
complex (I/Q) mixer to convert radio spectrum to a low IF, and send that
IF to the left and right inputs of the sound card in your computer. The
demodulated audio goes to the same soundcard for output.
Quisk can control SoftRock hardware for both receive and transmit.
As a transmitter it can control my SSB/CW exciter and my transceiver using
Ethernet.
As a transmitter it can accept microphone input and send that to your
transmitter for SSB operation. For CW, QUISK can mute the audio and
substitute a side tone. Quisk can send transmit data to your sound card
for use with SoftRock or similar. If you are not using SoftRock hardware
and not using Ethernet, then you can modify the C code in microphone.c to
connect to your hardware.
If you have the SDR-IQ or the Softrock hardware, then QUISK is ready for you
to use as a receiver. If you have other receive hardware, then you will
need to change the file quisk_hardware.py to connect your receiver to
QUISK. For example, if you change your VFO frequency with a serial port,
then you need to change quisk_hardware.py to send characters to the serial
port. The file quisk_hardware.py is written in the Python programming
language, a very easy language to learn and use.
SETUP¶
Some deployments of quisk will only need to use sound hardware with ALSA. Other
setups will use serial ports (or USB serial ports) and may need permissions
set up (perhaps using udev) to allow the quisk program's user access to those
ports. See documentation in /usr/share/doc/quisk for more information, as well
as configuration file examples.
The default configuration file is ~/.quisk_conf.py
The configuration file must be customized for the user (see the commented
examples) before running quisk.
SYNOPSIS¶
quisk [
options]
OPTIONS¶
- -h, --help
- show this help message and exit
- -c CONFIG_FILE_PATH, --config=CONFIG_FILE_PATH
- Specify the configuration file path
- --config2=CONFIG_FILE_PATH2
- Specify a second configuration file to read after the first
SEE ALSO¶
http://james.ahlstrom.name/quisk/
- Sample config files are in /usr/share/doc/quisk/quisk_conf*
- copy one, edit and save as ~/.quisk_conf.py
- For use with a Funcube Dongle see the program
- qthid in package qthid-fcd-controller.