Now that I finished my Omnia SDR for the 60, 40, 30 and 20 meter bands, I started looking into how I could use it on Linux. I remembered reading some emails on the project mailing list about using Quisk, which is a mature SDR transceiver application written by James Ahlstrom, N2ADR. I decided to give it a try.
On Tuesday I took my Funcube Dongle to our weekly meeting at OZ7SAT for testing it on the air using some bigger antennas than my Arrow antenna. We were listening for amateur radio satellites and cubesat on the 70 cm band and we were using a standard Wimo X-yagi (8 elements I think). For SDR receiver application we used modified Quisk SDR running on Ubuntu Linux.
Today I have spent some time trying the Funcube Dongle with Quisk SDR. The setup procedure was quite painless and the results very satisfactory: Using an Arrow II hand-held yagi connected directly to the FCD I could receive the HO-68 CW beacon with very good SNR.
Before getting my hands all dirty with adding UHD driver to Quisk, I decided to take it for a test drive using some pre-recorded samples. I have used a 250 ksps recording of the HO-68 / XW-1 linear transponder downlink that I have recorded on November 9, 2010 using the USRP and the RFX400 daughterboard.
Few days ago I learned about the Quisk software defined radio application for Linux. It is written by James Ahlstrom N2ADR with contributions from other radio amateurs around the world. A quick glance at the home page and the documentation suggested that it is a rather simple application where it is easy to add support for other hardware.