Problem:I took my Radian Pro down from its rack to ready for flight today. Last flew a couple of months ago w/o problems and put it away without a battery. Yesterday, hooked up a fully charged battery and three beeps from the ESC - nothing further- no power to the AR6200 receiver. Tried to rebind- nothing. Will only get a light to active on the rcvr when the bind plug is connected. Steady light - no flashing, as would be normal for binding. I changed the rcvr to another - same history - no power to recvr. Tried three different batteries - same thing. ????????????????????????

Sounds like the ESC is bad. It also seems to be the only thing you haven't checked.

I changed out the esc with all essential connections be made. Same exact response - no power indicated to the receiver until a bind plug is inserted. Mystified!!!!!

Disconnect the ESC from the Rx and power the RX from a normal receiver battery pack. Do things work correctly now?
C8