Thanks for your help, btw.
Some other things to try:
-Replace ESC with regular servo.
-Create a mix in tx: throttle to any spare ch 100%. Difference? Had just this problem on one DL Rx, only Ch1 was broken and only when operating the esc. Operating a servo worked fine, operating the ESC from any other Ch also ok.
-Operate esc with servo tester or other rx.
thanks for your help (helpful first post.. nice! Welcome to the lab!)
I'll try the channel swap when i get home from work tonight.
I'll also be setting up my 9x to see if it behaves differently.
I'll report back here with my findings.
We took a good look at this issue today, using a Futaba 9C (no Spectrum stuff available for testing), and the timing and levels of the Rx outputs look just fine, matching within a nat's widgin' of what the 9C puts out.
It is a bit of a mystery as to why these ESCs don't like this.
We'll see if we can borrow some other radios and do the same testing.
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