Voltage drop causes 3DR radio to not connect

I like to share.When the radios stop connecting, a person wonders where to start trouble shooting!!! Long story shorten.... I had the system working in my flying wing (only 2 micro servos). Moved the complete system to a Glider which has 6 SERVOS!!! I put a volt meter on the ESC/BEC power and found the voltage drop too much....disconnecting 3DR radios. Solution: Left the ESC BEC on APM/GPS/3DR Radio,and installed a new BEC for servos. Happy pilot!Brian

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