First day out flying my new IRIS+ and I kept having DroidPlanner call out "Weak Signal". This is concerning because the copter was in a wide open field between 10' and 100' from me, most of the time around 30' in front of me hovering when it would give this warning... I am using the 3DR Radio for telemetry. I believe the correct way to troubleshot radio problems/interference is by graphing the RAD values from the Pixhawks logs correct? if so, that is what I did and took a picture to attach to this posting, I am not sure what I am looking at so can someone help and tell me if you see what is going on?