Here is a YouTube video about KerberosSDR For Direction Finding, and is part of a growing collection of videos I have found to be useful. The reason is showing how the Kerberos SDR operates multiple coherent receivers with ability to do direction finding and understanding science related to software defined radio.
This tutorial, "KerberosSDR For Direction Finding" is free education you can watch, which will help you deepen your knowledge and be better prepared for licence exams, schoolwork, or operating radio equipment.