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View Full Version : engine vibrations messing up rx


lemontea
06-29-2008, 12:16 PM
Hi guys,
Last week I took my dx7/ar6100 for a test flight in the King(3200kv-stock servos).
A few minutes before the third bat ran out the King started to behave weird.
Back home I noticed that the main rotor servos were twitching and changing the pitch both ways when the engine got past 50% power, give or take. The ail.servo is affected most.
I tried different servos on that channel, same result.
Fitted stock engine, ditto.
I powered up to 100% with the engine out of the King but with the electronics installed and the problem was gone. Ergo, my ar6100 does not like the vibrations.
I tried isolating the engine and the rx with some double sided sticky foam but that didn't help.
So I'm back to the stock tx/rx for now but I would like to fix this.
Your help is much appreciated.

Pinecone
06-29-2008, 06:11 PM
It could be electrical noise. I would try a different motor.

vetterick
07-01-2008, 02:02 PM
Did you by any chance remove or not use a ferrite core on the throttle lead?

This can cause (yes even on Spektrum) problems from dirty power.