KerberosSDR Tracking a Weather Balloon Radiosonde with Radio Direction Finding

KerberosSDR Tracking a Weather Balloon Radiosonde with Radio Direction Finding

Testing direction finding with a KerberosSDR and an Arrow 406 MHz 4-element KerberosSDR antenna array on a meteorological weather balloon. The bearing from KerberosSDR is compared against the GPS data received from a meteorological weather balloon transmitting RS41. The first half of the video shows the RS41 decoder map with GPS coordinates of the balloon overlayed on top of the KerberosSDR Android bearing display. The second half shows the same experiments again, but with the KerberosSDR DoA graph and a separate SDR# instance showing signal strength on the waterfall. Good bearings are obtained most of the time. When it goes off the mark this is usually when the balloons line of sight to the antenna array is obscured by something like the terrain, buildings, or trees. The KerberosSDR is running on a Raspberry Pi 4. It is running unreleased beta code which can handle intermittent signals like RS41 better. This code will be released within 1-2 months. 

VIDEO

In the future we will test operation with two KerberosSDR units at different locations. 

RTL-SDR.COM Post with more information: https://www.rtl-sdr.com/kerberossdr-tracking-a-weather-balloon-radiosonde-with-radio-direction-finding/

KerberosSDR Store: https://othernet.is/products/kerberos... 

Arrow KerberosSDR Antenna: http://www.arrowantennas.com/arrowii/sdr.html

 KerberosSDR Setup Guide: www.rtl-sdr.com/ksdr