At the Dwingeloo Radio Telescope, we've developed a suite of tools that stream IQ data from SDRs using VRT (VITA 49.0 Radio Transport) over ZeroMQ to multiple clients simultaneously. This architecture enables us to run various applications—including SigMF recording, spectral analysis, pulsar dedispersion, correlation, and more—on the same data stream in real time.

Using this setup, we have successfully received signals from Voyager 1, conducted lunar radar experiments in a bi-static configuration with Astropeiler Stockert, and even achieved a Venus radar bounce.

These tools are highly generic and have found applications beyond radio astronomy. In this talk, we'll provide an overview of the design philosophy and practical usage of these tools, illustrated with examples from our work at the Dwingeloo Radio Telescope.

https://github.com/tftelkamp/vrt-iq-tools/