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Forum: JR Radio & Spektrum Radios

02-25-2013, 01:50 AM

Replies: 21

Spektrum A6020 servos are humming at idle.

Views: 6,679

Posted By chuckk2

RE: Spektrum A6020 servos are humming at idle.

Noisy Pots, noise on the servo leads, or narrow dead band?
One or three seems more likely. Running the servos on a servo tester for a bit might help.

Forum: JR Radio & Spektrum Radios

01-31-2013, 08:11 PM

Replies: 21

Spektrum A6020 servos are humming at idle.

Views: 6,679

Posted By chuckk2

RE: Spektrum A6020 servos are humming at idle.

It's not "stray current" exactly. Digital servos can each draw (very short term) more than one amp. If there is not enough capacity in the servo to limit the current spike, it can go all the way back...

Forum: JR Radio & Spektrum Radios

01-30-2013, 12:57 PM

Replies: 21

Spektrum A6020 servos are humming at idle.

Views: 6,679

Posted By chuckk2

RE: Spektrum A6020 servos are humming at idle.

Servos, particularly digitals, introduce noise on the receiver power buss. That can be enough to cause servo buzzing,
You might try adding some capacitors and see if that helps. Some of the RX...

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