KrakenSDR Vehicle Radio Direction Finding Demonstrations

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KrakenSDR is a 5-tuner coherent software defined radio based on RTL-SDR. It is the successor to the KerberosSDR and will be crowdfunded in 2021.

In this test KrakenSDR is used on a vehicle as a Radio Direction Finder (RDF) with a 5-element circular antenna array made up of mag-whip antennas on the roof of the vehicle. The Android app logs the RDF bearings generated by the KrakenSDR and calculates cross points, eventually determining an estimated location of the transmitter once enough data is available. The GPS navigation feature helps the driver safely navigate to the estimate location without having to look at the screen too often.

The demo also shows how the KrakenSDR automatically recalibrates on frequency change. Unlike the KerberosSDR it is no longer necessary to manually disconnect the antennas and then recalibrate during each frequency retune.

The DSP software running on the Raspberry Pi is entirely open source and available at https://github.com/krakenrf​

The Android App is closed source but free to use for non-commercial use. https://play.google.com/store/apps/de...