I was wondering if you might be able to help me, Have a spirit on a goblin fireball, dsmx satellite, when I move the pitch in a pitch pump the sevros stop working and the power to the satellite blinks out and back on in about 1 second. Iit only happen on pitch movements, I can move the cyclic as fast as I can and home to servos to stall them. nothing happens, I move the pitch up and down fast and it quits. you have any ideas, i thought it might be the bec in the esc, but if it was then I would think it would shut down when I stall the sevros?
Thanks for any imput?

The problem is happening, because BEC is unable to deliver required amps.
If it is occuring even during pitch movement, then the problem is very important to solve.
It should never happen normally.

So a new BEC or a ESC is recommended here. The cheapest solution could be to add a capacitor (probably 4700uF). But this solution will be on the edge and might be still not enough.

What BEC/ESC you are running right now?

_________________
Spirit System developer

it has the sab 60 amp esc. I have try to hook it to a separate rx, with 4 full sizr servo and stall them and the bec never went off. i will try a new esc

You can try to disconnect some servo, theoretically if one has excess load it could cause it. But this can only occur if some servo is failing.
What servos are connected there? Is your frequency not too high?

When you are trying servos over the receiver, it will not show up such brown outs because receiver has additional capacitor inside. But for servos you will not find if it is enough or not.
For this purpose we have BEC tester that must be always passed. But this will create even higher load.

_________________
Spirit System developer