This is Quisk, a Software Defined Radio (SDR). You supply an antenna, 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 Quisk software will read the sound card data, tune it, filter it, demodulate it, and send the audio to headphones or speakers. Quisk has a microphone input and a key input so it can operate as a complete transceiver. Quisk works with this hardware:
* SoftRock connected to the sound card
* Many other SDR's connected to the sound card
* SDR-IQ connected by USB
* N2ADR hardware connected by Ethernet and IP
* HiQSDR hardware connected by Ethernet and IP
Quisk can be used as a pan adapter, and can control some radios
Quisk is small and simple, and has been designed so that it is easy to change Quisk to suit your own hardware. 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 operation, and Quisk has been designed for low latency. Quisk includes an input keying signal that can mute the audio and substitute a sidetone.