Radio Direction Finding using KerberosSDR

Traditionally we’ve seen radio direction finding (RDF) in the form of Doppler kits and tone meters, however with the proliferation Software Defined Radio (SDR) we’re seeing a new form of direction finding.

Essentially if you take four software defined radios and coherently link them together, you can then compare the signals from four separate antennas to get a bearing of your target signal’s location.

I recently came across a project on Indigogo which offered this in a complete package called the KerberosSDR. Here is a video of my setup and a demonstration of this radio.

The KerberosSDR is still under development, but from my tests it works fairly well. Unfortunately, I don’t have any traditional RDF gear to compare it to but from what I’ve seen it’s certainly a potential way to go if you’re looking to have some fun with RDF and want some more modern gear.

If you’re interested in the KerberosSDR, you can find more information about it here:

https://indiegogo.com/projects/kerberossdr-4x-coherent-rtl-sdr

Harold Giddings, KRØSIV, is a special contributor to AmateurRadio.com. He is a Ruby programmer and maintains the website Signals Everywhere. Contact him at [email protected].

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