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Old 06-25-2011, 02:43 AM   #1
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Default ECS CAPACITORS will they jam the receiver?

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Old 06-25-2011, 01:46 PM   #2
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Not sure what receiver you're using, but the motor and servo can also cause radio interference. If the antenna doesn't have a clear line of sight, it may glitch momentarily, or cause the car to behave erratically.
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Old 06-25-2011, 02:09 PM   #3
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Default capacitors

I'm assuming your discussing capacitors which are attached across the positive and negative leads on the Electronic Speed Control (ESC) used in battery powered vehicles.

- Those caps are installed to capture "electonic noise" or "push back" , or "back EMF" (aka sparks) created by the motor operation, before it gets into the rest of the electical system (ESC,servo etc). In this mode they help prevent stray electricity/signals from entering the system and thus cut down on what you are calling "jamming". Think of them as small surge protectors.

- Secondarily, the caps can help the ESC run a little cooler by dissapating those "sparks" before they get into the ESC and generate heat.

- The energy captured by the cap is stored in the cap until the ESC gets its next "full power" command. Then that small amount of captured power flows to the motor along with the electrical power drawn from the battery.

-With or without ESC caps, it is still always a good idea to install your receiver and its antennae as far as practically possible from the ESC.

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Old 06-25-2011, 02:25 PM   #4
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I have seen a spektrum receiver modded with a cap placed inside the case of the receiver and soldered in. Thus removing the need for an external plug in cap. It was reported to have worked well, but I wasnt the one doing the testing. I use a plug in Novak capacitor on my spektrum receiver because my Savox sucks the power out of it and it freezes for a moment. The Cap cleans that up pretty good.
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