T-180 esc

[mx174k]

Does the green ring on the rx wires of a T-180 esc serve any purpose or can I simply remove it.

[dana]

good question, always take mine off. im too OCD to leave it on there.

[JPriami]

Thats a ferrite ring. They put those on there to help reduce the chance of radio interference. They are used in radio communications equipment often.

[dana]

Thats a ferrite ring. They put those on there to help reduce the chance of radio interference. They are used in radio communications equipment often.

no kidding... well does it still apply when using 2.4 radio? or was this an fm radio thing..?

[JPriami]

I seen it used in most lower frequency equipment. Im not 100% sure about the higher stuff. The wave lengths get shorter the higher you go. But I'd leave them on just in-case. Because there are still chances that you could get interference from an external source. I think I remember reading that even some esc's can generate radio noise and cause interference. One of the twin EDF jets I built the instructions said to keep the receiver up front away from the 2 esc's because of this.
I am picky like you and didnt like seeing the coil on there. But I did re-wrap it to make it look a little better lol

[siberianhusky]

I'd leave it in there, it's called a toroid, same thing in that funny plastic bump in the cables of some computer stuff.
"In a toroid, all the magnetic flux is contained in the core material. This is because the core has no ends from which flux might leak off. The confinement of the flux prevents external magnetic fields from affecting the behavior of the toroid, and also prevents the magnetic field in the toroid from affecting other components in a circuit." Quote from whatis.techtarget.com
It's a pretty good magnetic field coming off our motors!

[sailr]

yep! Leave it alone. It ain't hurtin' nuttin!

[6sHyper]

Thats a Ferrit ring and i would most definately leave it in there its used to reduce radio interference just like stated earlier. I know my first 6s truggy i built with a MMM system i couldn't go further than 50ft without losing contact with my radio due to the high current travelling thru the battery and motor wires it would disrupt the radio frequency, added a ferrit ring and all better. Better yet i did switch over to 2.4 and never had a problem after that................

[m4a1usr]

I'd leave it in there, it's called a toroid, same thing in that funny plastic bump in the cables of some computer stuff.
"In a toroid, all the magnetic flux is contained in the core material. This is because the core has no ends from which flux might leak off. The confinement of the flux prevents external magnetic fields from affecting the behavior of the toroid, and also prevents the magnetic field in the toroid from affecting other components in a circuit." Quote from whatis.techtarget.com
It's a pretty good magnetic field coming off our motors!

Mark is 100% right. Its a ferrite ring or known as a torroidial choke. He already gave you the reasons as to why it works. The EMF in the motor wires is the danger to the Rx connection. Doesnt matter if its a 2.4g system or FM or even AM, however due to the age and technology of AM that one would certainly be the worse for filtering/ or circuitry adaptation capability. The longer the motor wires, the more EMF can influence the electrical signals your Rx is seeing. Random spikes or large amplitude changes have been the problems in the past. Todays digital systems can still get screwed up by long motor wires. Keep them seperated by at least 2 inches and the more the better. With the choke you get some protection.

John