Yes, the BEC ESC is plugged into M1 on the Flight Controller. The BEC outputs 5v and the Rx requires 4-6v, so I am thinking that is not the problem. I have considered the fact that there could be a conflict with different types of ESCs. That will be the next thing I will try. Thanks for your help!
Thanks Jackson. Ill give that a try. I went with the odd ESC combo because I accidentally bought OPTO's and didn't feel like figuring out a UBEC and how it connects.
I just built my first quad.
NTM 28-26 12ooKV
3x Turingy Multistar 30A ESC (Opto)
1x Turing Multistar 30A ESC (SBEC)
KK2.1.5 Flight Controller
Quantum I8 Transmitter and Receiver
At seemingly random intervals during flight, the quad literally drops out of the sky and emits a steady tone. It is...