All cables used to have this but they started to cheap out. For those who don't fully understand physics, the energy transmitted actually travels outside the wire. This fact usually blows people's minds.

Your clip is not useless for me, it just confirmed that the AC spindle on my CNC router was f-ing the data signal passing thru the USB cable and messing the movement of the stepper motors! Thanks for your vid, i subscribed for sure, cheers from Transylvania, Romania, Europe! :)

@nicolaecampan2385

3 жыл бұрын

@H Higgins Thank You for the reply! 😎🙏

Your channel is becoming one of my favorites!

I find your videos very interesting. With each one, I never know what new thing I will learn. I enjoy your sense of humor, too!

Spent a while looking for a video with this explanation and finally found it. Thank you. Looking to optimize a filter for fixed wing FPV.

Wow! You are Amazing Scottie thank you. A brilliantly timed video, it actually helped me work on a conundrum. Brilliant thank you again.👍💫

No bull crap. No Time wasting. Just To the point explanation. Very useful video

Great video, simple, easy to digest, accurate.

Thanks 4 such an easily understandable yet so informative presentation.

Very interesting...great upload!

Good video. I knew that stuff already but sometimes I like to relax while watching things I know explained in someone else's way. Who has a similar habit? :) Thanks for the video. Cheers!

Thank you. Used the clamp on ferrite beads on a very noisy switching power supply and they reduced the the hash on my speakers.

Cool info. Thanks 😃

Great video - many thanks!

Ive always kind of wondered exactly how those ferrite cores actually worked.

Thank you for a fantastic explanation!!!

thank you really appreciate someone teaching us what we never take into consideration in our daily lives... :)

Thanks, I learned something new.

Excellent tutorial.

Wonderful information, nice presented! 👍

Hell yeah thanks dude!

Good info 👍

thank you i got exactly the answer i was looking for

Thanks brother

I have a bunch of those yoke ferrite cores from old CRT TVs/computer monitors. 😎

I have that allready in my rg8 coax cable for my 2m ham radio..good work bro..frm DX 419 philipphines

a video on how to wire a meter or the difference between a contactor and a relay would be cool.

Hey beam me up Scotty,...that was fun .../thanks for the lesson

Today Dr.Strange pulls a Big Clive and teaches us about ferrite beads with the white board. /S Good video! New subscriber.

Great explanation. Bugged me the lower frequency free pass through though. Do we need bigger ferrite chokers then?

@jpsalis

3 жыл бұрын

two year old comment but inductors work better at higher frequencies, I'd imagine you'd need some other solution to block lower frequency emissions

NICE VIDEO

I found it on my bluetooth receiver amp system. While the ground loop is existed, i hear radio signal out from the speakers. Thanks, I've known that bulky things on my cable is used for what now.

Always chill informative videos. Question, has ferrite been used to protect from other types of frequencies, like a Faraday box in a way? I'm not smart.

@ProtonOne11

3 жыл бұрын

Testing rooms for radio emission and immunity are usually completely covered on the inside with ferrite tiles, to keep the outside radio signals away from your measuring devices, or to keep the generated fields in the test room inside. On top of the ferrite tiles there are normally some more absorbant cones inside the room to eliminate most of the reflections of radiowaves from the walls and ceiling.

Thanks. You explained it in such a way that even an idiot like me can understand it.

Electronics engineers knows best

Enjoyed your video. Would you happen to know how I can reduce the interference from tv cable and electrical cable running side by side? Whoever installed the TV cable at my home installed it next to the electrical cables/wires. I'm always getting TV screen freeze or my sound fades on my TV.

@ScottiesTech

5 жыл бұрын

If the TV cable is coax, it should be relatively immune to interference from power lines. I would check all connections first, and then perhaps any amplifiers on the line.

@gmtv9928

5 жыл бұрын

@@ScottiesTech Thank you for getting back to me.

Very through explanation with diagram of wire pair n choke. Wonder of little peeson? Thank you sir.

14 Pythons with a "swallowing problem" disliked. 😉😂😆

I have couple of these ferites should i trash it or keep it?

I had a printer which would stop and fails if in the middle of printing someone turns on a car, microwave oven, or even lamps nearby. I solved it completely by using an USB cable with ferrite core in both sides. The one which came with the printer hasn't it.

I had a real problem with interference on the audio out from my PC to my speakers. I'll admit, it took a while for me to wake up and snap a ferrite over the cable but the affect was magic, all interference gone!

Great stuff!! I’m working to understand ham radio stuff; so glad I found your videos.

Why are those ferrite chokes mostly found on older cables? With the modern, higher frequencies, I would expect them to be more significant instead. Especially high bandwidth digital stuff like USB 3.1 generates a ton of noise.

@ScottiesTech

4 жыл бұрын

I suspect it's a combination of cost savings, higher frequencies (at which the ideal antenna length becomes much shorter than, say, a USB cable, and thus the cable doesn't act so much like an antenna that picks up the noise), and better overall design.

@QoraxAudio

4 жыл бұрын

@@ScottiesTech Well, the costs savings make sense. But when it comes to, for example USB noise, I was mostly referring to emission of the noise. Especially the ~2.4GHz bands, like WiFi and Bluetooth communication is are known to be susceptible to the USB 3.0 noise. Even with good shielding the noise still gets radiated, because of the capacitive coupling between the shield and datalines. But TBH, I don't know how well ferrite chokes work to prevent RF emission, since most sources only mention the filtering of incoming noise.

@ScottiesTech

4 жыл бұрын

@@QoraxAudio As far as I know, ferrites don't really do a very good job of preventing radiated noise at high frequencies. But then, I'm no EMI specialist by any stretch. That's an entire science in and of itself!

New sub what mic do you use for your video?

@ScottiesTech

4 жыл бұрын

Rode SmartLav!

Would it benefit to use multiple of them on the same dc brick cable? Like 5-10 on 1 cable...? What about using them on guitar cables?

@ScottiesTech

5 жыл бұрын

It might, although usually it works better to loop the cable several times through a larger core.

I just bought a variety pack of the ferrite clips, I’m really hoping it’ll stop adding noise to my focusrite Scarlett 2i2 audio interface. I’m going to clamp every single thing I can think of. Wish me luck!

@AZNFLACO

2 жыл бұрын

I'm having the same issue now. Did it work?!?

@BabaGhanoushMusic

2 жыл бұрын

@@AZNFLACO unfortunately, not really. By now, I’ve determined the issue to be RF noise coming from my computer, but don’t know how to eliminate it (dirty air)

@AZNFLACO

2 жыл бұрын

@@BabaGhanoushMusic such a bummer. I will continue to research on how to fix it. Thanks for your reply!

@BabaGhanoushMusic

2 жыл бұрын

@@AZNFLACO of course, let me know in how it goes

@MykEviiL

Жыл бұрын

@@BabaGhanoushMusic how did it go?

This things can be use on spark plug cable on motorcycles?

Hi Scottie! Are you in the age range where you built or knew about Heathkits?

@ScottiesTech

6 жыл бұрын

I know of them. We had a Heathkit color TV when I was a wee little thing.

You said they cannot restrict lower frequencies like AC hum, but could it restrict 59 kHz frequency? which in deed fried an iPad recently!

@ScottiesTech

6 жыл бұрын

Maybe, depending on the ferrite used... Most of those available to snap over cables start around 150-300kHz and suppress up into the multi-MHz range... But their frequency response is pretty much a bell curve, so you would get only a little bit of attenuation at 59 kHz... AFAIK, anyway!

Is mouse encoder(mouse roll) 's output high frequency ? encoder > 3 way cable > board

I have a drill charger that causes noise on an FM radio. I put one of these on the power cord of the charger on the charger end. It cut down on the noise but not all the way, Should I put another on the plug end?

@ScottiesTech

5 жыл бұрын

Or use a bigger one, and wrap the cord through the ferrite core several times.

so if I add those ferrite choke at the output cable of a sound system, it will eliminate those humming noise, is that correct?

@ScottiesTech

5 жыл бұрын

Audio hum can come from a lot of different things, but it's certainly worth a shot!

@96binghong

5 жыл бұрын

@@ScottiesTech thx for the reply,and great content,keep it up

This is weird , my audio interface had ferrite and it was picking up signals from mouse and keyboard ,but as soon as i changed the cable of audio interface , the noise was gone...im so totally confused now lol

what if we cover the whole wire with aluminium foil?

Question: My PC is an RF hot box and anything within 6 inches becomes hot as well. Take for instance my microphone next to the pc it picks up hum and get it over six inches it goes away. I noticed on the VST (EQ) I was using that when I hooked up a DBX286s the frequencies were all over the place but the peaks were 60/120/180/etc... so 60hz mains hum with a lot of harmonics. What do I do for that?

@ScottiesTech

3 жыл бұрын

Alas, no. Ferrite blocks high frequency noise, not low-frequency. If there's a lot of 60Hz + harmonics, you may want to check your ground as well as any and all power supplies (puter, power bricks, etc). One bad supply can create lots of problems like that.

There is ferrite inside of some circuit boards. Some ferrite is coated. But what is coated onto the ferrite? I recently broke a core like this, but I saw dust come up from the break. I want to know is this stuff is poisonous.

@davidbolha

4 жыл бұрын

Definitely never scratch a magnetron's ceramic coating. 😲

Hello i want to ask some question. I have speaker for my computer, but i can hear radio sound clearly. Where do you think its the best to put ferrit on? Speaker power cable/ speaker jack 3.5 audio cable to my monitor or else? Im completely green, hope you can enlighten me. Thank You

@ScottiesTech

5 жыл бұрын

Try the audio cable right before it goes into the speakers. That might help.

so it would have no effect on an electric cable to a lamp or kettle etc. or would it ?

@ProtonOne11

3 жыл бұрын

It would have an effect, but for 50/60 Hz AC, the impedance is so low that there is not much happening in the ferrite. Usually ferrite cores for filtering have theyr impedance specified at 100 MHz, as that is around the frequency where they present the highest impedance. And if you put both the neutral and phase wire thru the same core, you have a differential mode current flowing to your load and back, and not a common mode current. So it really depends on what you would want to filter out on that electric cable...

@rexgeorg7324

3 жыл бұрын

@@ProtonOne11Thanx ..Could it increase the efficiency of an electric kettle ? ..saving time and money

THKS

Nice.

Thanks. Got any idea as to how we can lower your EMF'S from 5G?

@sheamaddy9893

3 жыл бұрын

Faraday cage

Scotties, please can you help me ! Rfi Emi ferrite ring suppressor with clip can i use it on my smart tv? I have a problem. when I turn on the switch on my closet (which has light savings) My smart tv blinks. thank you.

@ScottiesTech

4 жыл бұрын

What exactly is this closet switch? A timed switch or something?

Is your co-host a tribble?

What is the ferrite's size for motorcycle?

What about yoke ferrite cores (CRT TVs) ? 🤔

@davidbolha

3 жыл бұрын

@H Higgins Aaah... thanks ! 🤔😏🖒

I need to block 120KHz on a 120VAC cable. Is that too low for these?

What happens if a wire doesn't have a ferrite core?

@samza9622

2 жыл бұрын

Depending what wire you have and where it's at it might be vulnerable to interference or rfi/emi.

What is the size of the ferrit

is it safe to put a ferrite core on my 2.5 inch SATA SSD's data cable and power cable ?

@worstalentscout

2 жыл бұрын

@@randgrithr7387 many thanks for the reply............so do i need to put the ferrite a certain distance from the SSD since the ferrite's magnetic properties might harm the SSD ?

Can these use on spark plug leads to improve spark?

@ScottiesTech

4 жыл бұрын

I don't think so.

Is it really necessary to have these if I use such s cable just for charging my redmi smartphone and datacable? I'm asking this because my sony cable has broken at the base of this bead and thus I need to remove this bead to make my cable working again and wind back the cut wires...please do respond at the earliest

@ScottiesTech

3 жыл бұрын

No, they're not absolutely essential. You should be fine if you remove it.

@thedocnextdoor2364

3 жыл бұрын

@@ScottiesTechyeah I did it it gives little trouble no problem infact

What happens if you use two ferrite beads on the same cable?

@ScottiesTech

4 жыл бұрын

You get more noise filtering - usually.

@Hi.M_Anshu

4 жыл бұрын

@@ScottiesTech My laptop charger went bust thanks to a surge and I had an old charger with a broken tip lying around, so I tried a very crude work around of attaching one cable with another without cutting off the Ferrite bead. So from what you say, I'm guessing there shouldn't be a problem?

@ScottiesTech

4 жыл бұрын

@@Hi.M_Anshu Nope, that shouldn't be a problem.

@Hi.M_Anshu

4 жыл бұрын

@@ScottiesTech Thanks mate ✌️

there is a radio station playing through my computer speaker and i didnt do that. will this thing stop that?

@johnrhodes3350

2 жыл бұрын

I think it will

@chachee15

2 жыл бұрын

@@johnrhodes3350 it didn't

@johnrhodes3350

2 жыл бұрын

@@chachee15 I'm Sorry, Bad Luck

So I have an 75 watt Led light on an airplane and it creates noise on my aviation radio, any way of getting rid of this noise/ the Aviation radio is 122.976 MHZ.

@ScottiesTech

3 жыл бұрын

Hmm, that can be tricky. You seem to have figured out that when the LED light is on, the driver circuit for the LED is generating noise. Most likely, that noise is audio-frequency, and that's being coupled somehow to the radio. It could be a loose ground connection for the light, or coupling between two wires in a harness somewhere. You might try an 'audio noise filter' on the power leads for the radio (which is not just a ferrite core, but usually a capacitor and sometimes another component or two).

Bee Groovy! Much Hak5g for US ALL!

Good information

Ésos cilindros están colocados en los cables sólo para causar daños .

Hey Scottie, thanks for the video. I appreciate you taking the time to make it. A few of my dashcamtalk.com forum members and myself are having a problem with high-pitched noise coming from our Viofo A129 dashcams, but only when they are connected to the car's fusebox using a Viofo 3-wire hardwire kit. I was hoping you may be able to help. Here is the dashcam we're all using: www.amazon.com/gp/product/B07DL8MS1T/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 and here is the hardwire kit, that seems to be the root of the problem: www.amazon.com/gp/product/B07K83R5W1/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 And finally, here is the forum where this is being discussed: dashcamtalk.com/forum/threads/a129-duo-high-pitched-noise.38653/ I know I'm asking a lot, but if you have some time any advice you could give us would be very much appreciated. Thanks!

@ScottiesTech

5 жыл бұрын

Well, lessee... According to the various posts on the forum, the whine seems to come and go and it's hard to narrow it down to the hardwire kit or the camera itself. It's powered by a USB plug, and it looks like the 3-wire cable already has a big honkin' ferrite core on the cable. One thing to try is if you have a USB battery bank (like for recharging smartphones) that was a 2.1A output, try powering the cam from that battery bank with a USB cable. That should be a relatively clean +5V supply over the USB cable. If that makes the whine disappear, then it's essentially a problem with the 3-wire kit. In that case, you could try adding another ferrite to the cable (loop the cable through a bigger ferrite twice if you can), but that seems like a stretch since there's already one present. I would actually lean more towards some issue with the cam itself. The cam seems to have both WiFi and GPS, both of which could cause noise. And if it's a prob with the design of the cam, that could also explain why something seemingly goofy like changing the SD card could change the whine. That might slightly change power requirements or something, thereby modifying or stopping the whine. But in the end, if powering with a clean 5V supply (like from a Li-ion battery bank) doesn't work, and another ferrite doesn't work to block noise introduced by the 3-wire cable kit, then I'd lean towards inadequate EMI shielding/isolation inside the unit itself.

Chokes on a DC wire ?

@ScottiesTech

3 жыл бұрын

Yup, that's common on things like DC power bricks for gizmos... because the switching power supply can produce 'high-frequency' noise, OR more likely because the power cable (for things like PC speakers) can act as an antenna and pick up noise from the puter, which then gets passed into the speakers and amplified.

@carloslealdiaz

3 жыл бұрын

@@ScottiesTech Please , in spanish .

Honestly they could fit a whole lot of shit in there if they can fit chips and beacons and shit into the cable itself seamlessly

Can ferrite cores be moved to a more convenient location on a cable and still be effective, as in...kzread.info/dash/bejne/Z4h10bxtj9XRYaw.html ?

@ScottiesTech

Жыл бұрын

Yes, but ideally they should remain as close to the gizmo as possible.

@tayler2396

Жыл бұрын

@@ScottiesTech Thanks. I learned a lot from your video.

Thx u!

It seems these usb cables are normally not recognized.. I have 2 of these long cables, but they are not recognizeable. Is there anythang I can do?

@ScottiesTech

2 жыл бұрын

It might be length, or it might be that they don't have the data lines connected internally and were only intended for use as power cables. Or something I didn't think of!

Mantap

What would a ferrite bead do to a 5g tower?

@ScottiesTech

3 жыл бұрын

Not much. It depends on the type of ferrite itself and the frequency of the 5G system. 5G can be low frequency (i.e. 600 Mhz) all the way up to tens of GHz (millimeter wave). Ferrite is usually used to block 'high-frequency' noise that is much lower than, say, millimeter wave 5G.

You lost me at "DC and lower frequency noise" @5:26. DC has zero frequency, so technically it can't be lower frequency.

Bla bla bla

He didn't even state what frequencies the choke works on. What a waste of a video.