In a world full of CGI one can really appreciate your handwritten schematics and animations. It's especially nice in an electronics-related channel like yours where it gives a well balanced result.
@DiodeGoneWild6 жыл бұрын
Thanks :) I'm a bit old fashioned :)
@hoangnamle78756 жыл бұрын
Not sure if sincere or sarcasm :)
@Subgunman6 жыл бұрын
Used to have fun at the malls when on leave. Had a access control badge for my assignment. Huge center for military and many doors were set up as man traps, if your card was not authorized to enter that section of the building one out be trapped between two locked doors until security escorted you to interrogation. Well the badge did a damn good job at setting off these alarms in a lot of retail stores. Every time I entered, Alarm. Every time I left, Alarm. Had fun with security, they could never find anything on me that belonged to the store. Used to tell them I was involved with government projects that involved high voltages and that I ad been accidentally shocked on time and ever since I have had weird effects on electronics. They always took a step back and checked their watches and radios.
@incineratorium5 жыл бұрын
Nice!
@ValoFear3 жыл бұрын
Hm I like you
@domsquaaa4323Ай бұрын
.
@sametcanyuca6 жыл бұрын
0:52 wtf i am dying
@samirabida3564 жыл бұрын
BëęB bêĘB 🅱️æ🅱️
@universalash3332 ай бұрын
Ikr!! This guys cracks me up! 😂
@francoisdastardly44056 жыл бұрын
Hahahaha I love your low budget animations !!! LOL !!
@bepsml5 жыл бұрын
true engineer, not animator haha
@shaleeskhan53764 жыл бұрын
He explained us as well so its mean that was helpful
@leosedf4 жыл бұрын
Those are the easiest to defeat, just cut them in half (scratch) to damage the coil and that's it.
@Poosnatcher2 жыл бұрын
Woot
@JWyuh Жыл бұрын
also the spider tags. you can just stick a sharp object into the tweeter and cut the wire or take a 250lb magnet to it
@YourLocalAnonAccount2 жыл бұрын
I've always wondered what these stickers are really for when I was younger, and I really liked to take out the metal inside of them; this video is really informative, thanks for teaching us! :)
@EngDrewman6 жыл бұрын
Back when I worked as a cashier I used to prank my coworkers by leaving those security tags sticky side up on the floor so that they would stick to their shoe.
@Sloobor3 жыл бұрын
And they say Hitler was bad..
@CoolKoon3 жыл бұрын
I heard that coworkers that do this kind of pranks tend to get beaten up back in storage if they continue doing this for too long...
@ieatyou37522 жыл бұрын
evil..very evil
@nothingnothing38327 жыл бұрын
Beep, beep. :)
@raynaldchatillon78266 жыл бұрын
It's the sound of da police. Beep, Beep. It's the sound of da police.....;-(
@sheppardpat476 жыл бұрын
AHAHAAHHAH I WAS SEARCHING FOR THIS COMMENT
@nik3L4 ай бұрын
always thought the barcodes somehow made the sensors beep hahah this maked a lot more sense. thanks a lot for this comprehensive explanation ❤️❤️❤️
@BenHutchinson321 Жыл бұрын
At 1:58 where it shows the graph of the RF pulse, and the resulting return signal, I notice two effects. There's an initial low output from the return signal early in the pulse, but then a lingering ring down after the RF pulse. So there are two potential ways to detect this return signal. The first (as described in the RF tag section of a Wikipedia article about EAS tags) is to detect the initial decrease in pulse signal strength when a tag is present. The other way (as described in this video) is to detect the continued "ringing" of the RF tag after the pulse transmission has stopped. Which detection technique is actually the most commonly used one? I also remember a few years ago something I read online that says these tags not only contain an inductor and capacitor, but also a diode. The diode chops off half of the sinewave, resulting in multiple harmonics being generated, and that the tag is detected by a receiver that listens at the harmonic frequencies. However I have never seen a diode on one of these tags, so that description I'd read before may be inaccurate.
@MrMinusguy4 жыл бұрын
a huge fan of your presentation style at 0:40
@edgeeffect3 жыл бұрын
I never worked out how they deactivate these! In other systems, deactivation is "complex" and visible.... thanks for the explanation.
@johnnynguyen94496 жыл бұрын
funny shit is i got caught shop lifting and they made me do this program which tells you what each alarm and securtiy stickers do and im like wait if i learn off of this that means i can easily find a way to slip it off and guess what? that cashier thought she was finna catch me stealing chargers and i waled off with 60$ worth of chargers and earbuds and i peeled every single sticker off
@TheLightningStalker6 жыл бұрын
How come the cashier has a pineapple on her head?
@Tigrou77774 жыл бұрын
I would rather say it's a pineapple with arms.
@MDClips24645 ай бұрын
that's actually another anti theft measure
@sophiaaria11 ай бұрын
In target there aren’t any sticker tags on the $40 mouses but there’s tags on $5 makeup 😭
@inikainika15237 ай бұрын
Pull them off
@daisymaisymae87883 ай бұрын
People steal makeup like it's not an actual crime
@backroadhustler86872 жыл бұрын
Good information, I didn't know the stickers returned a signal. Thanks for the video sir.
@an26344 жыл бұрын
oh god!! thank you dude this is exactly what i was looking for !!
@FeiKuan6 жыл бұрын
Thank you so much! I was desperately looking for how RF EAS works for a physics project and can't seem to find any, until I found this!
@hanalen92594 жыл бұрын
Our company provide EAS products,if you are interested,can contact me.
@dannymonroe46423 жыл бұрын
Your accent is so refreshing, I love it. Great video!
@bluey_heeler4 жыл бұрын
The deactivations have never worked in the history of mankind
@CoolKoon3 жыл бұрын
They do work, but as he has pointed it out the resonant frequency of these things changes a lot. Any deformation of the item (creasing, bending, pushing etc.) causes a change in the resonant frequency, which is probably one of the reasons they only tend to use these items on stock that has solid, hard packaging (like books, CD's/DVD's, small electronics etc.). Every now and then they might put it on some unsuitable items however and then the de-activator fails to de-activate it, because the item's resonant frequency will be outside the frequency range used by the de-activator.
@jandy15512 ай бұрын
Vedel som ako to približne funguje pred pozeraním tohto videa, ale potom čo som to dopozeral, som pochopil plné fungovanie. I knew approximately how the mechanism works before watching this video, but after done watching it, I knew exactly how it works. ❤❤❤
@Prometheus11117 жыл бұрын
Very interesting. I always wondered how those work.
@TheLightningStalker6 жыл бұрын
I always assumed they had some kind of active device inside. It's amazing how simple they are. They must come in different frequencies though because they will only work in certain stores.
@chetanjoban17 жыл бұрын
That is exactly what I was looking for! Thank you
@chetanjoban17 жыл бұрын
That would mean, during a price check, the capacitor would be destroyed and people can steal.....
@garymatusavige36394 жыл бұрын
I'm curious if standing over that all day has health effects to the cashier
@CoolKoon3 жыл бұрын
I think that the pulse is activated only when an item is detected and even then it's only for a split second. RF stuff is pretty tightly regulated, particularly the transmitters.
@elena65164 жыл бұрын
can you explain any differences between the RF theory and application of EAS versus timed single- and double-use public transit tickets? I split the faces of a ticket to reveal a circuit very similar to the above - a coil with centre capacitor and a black dot on a different part of the circuit - with some minor differences. I struggle to understand how the receiving system can know the difference between a single- or double-use ticket, and how a life span of 3 months can be programmed into the ticket (i.e. when you a buy a ticket, you have to use it within 3 months or else it will expire). Do you think the single- and double-use tickets possess the same circuit within and are programmed in some different way, or do you think they are two different circuits, dispensed from the ticket machine from two separate rolls of not-yet-activated tickets upon purchase?
@Dan-yu6hv3 жыл бұрын
Hi. What you are talking about I believe is RFID. RFID tags transmit data through its coil whereas RF Tags do not transmit any data Each RFID tag would have its own unique number which would be put into some sort of database, when you presented your card the system would check if it is on the database and if it is then it would do what it has to.. Hope I was of help
@elena65163 жыл бұрын
@@Dan-yu6hv thank you, that has set me in a direction to investigate.
@keltar40717 жыл бұрын
Beeeeep lol
@DX-wq3wl3 жыл бұрын
Multiple times i triggered the alarm in the shops with only RJ45 cable. If you make some perfect tight roung coil, then you can trigger the alarm.
@PhillipPresswood6 ай бұрын
When you started making that beeping sound I laughed so hard 😝
@rebeccastewart41944 жыл бұрын
Really interesting and you make it so simple and fun to learn. Thanks so much :-)
@DryLog4206 жыл бұрын
OMG my youtube has deleted all my subscribed channels and completely stopped feeding me your videos. Haven't watched one in over 6 months I think.... gotta catch up now! Resubcribed!
@fathanturk6 жыл бұрын
thank you alot I am provider of this security tag and you make my mind double, even till today they (makers) can't make me understand how its work. thank you i am smiling on those Chinese maker
@hanalen92594 жыл бұрын
I am also provider of this security tag
@j7ndominica051Ай бұрын
I thought there would be a microchip. The "acousto-magnetic" is even more mysterious. It is obviously a tag from its external appearance, but inside there are only 3 sheets of steel foil and no brain.
@Senaihh6 жыл бұрын
Loved the animations
@enzoperruccio5 жыл бұрын
*BEEP BEEP BEEP*
@BenHutchinson321 Жыл бұрын
I'm also wondering, do the actual antenna units in stores have 2 coils in them, one for transmit, and one for receive? Or do they use a single coil for both transmit and receive, and then have a complicated circuit to differentiate between the transmitted and received signals?
@robertheinrich2994 Жыл бұрын
thanks for the explanation. I wondered if that is an RFID tag and could be used for something. but if it is just a capacitor with an antenna, and the capacitor is shorted, then it is useless.
@someperson3568 Жыл бұрын
This was ab awesome presentation! 🤙
@MrVeryCranky2 жыл бұрын
excellent concise presentation.
@therealm49443 жыл бұрын
clicked thumb s up, solely for the awesome "special animation effects" lol!!!
@hardkaurgachak3 жыл бұрын
I dont understand i checked out a perfume like standard procedure of buying but with that bag every shop i entered was beeping i felt so embarrassed... why does that happen if it passed through cashier and all?
@Rah11Sin2 жыл бұрын
lol, im here after gettin caught in shoplifting. now i know how to cheat the system. thnx for the video
@johnwolf7073 Жыл бұрын
thanks for making this video, it helped a lot !
@Sosolidcrew2 ай бұрын
Great demo but how do you remove them b4 leaving the shop !!!
@LifeOfJimbo5 жыл бұрын
0:55 is my daily alarm
@TIMETECH074 жыл бұрын
Nice 11 Pro
@YellowToad4 жыл бұрын
nice
@Jojohumf6 жыл бұрын
I enjoyed this video annnnnnnnnnnnd I’d like to watch more of your videos annnnnnnnnnnnnd it was very educational
@fariborzazali3 ай бұрын
I’ve bought a money pocket bag from other country and arriving to my country I found that still magnet inside my bag ( I can found where is inside bag ) but as I pass the any shop gate I have problem , how I can reactive it ?
@kuruptsoul3 ай бұрын
I just peeled one off of a quart of oil, and just got curious how the deactivation worked
@investors30946 жыл бұрын
*I have a question! Can you change the frequency of RF tag? Meaning not changing out the capacitor nor the coil for diffrent ones, because frequency is affected by period and in LC circuit period is T=2π √LC*
@CoolKoon3 жыл бұрын
Yes, you can.
@mrmarsh7836 жыл бұрын
Great animation😁 i loved it!!
@jek__3 жыл бұрын
theyre crystals wrapped in wires, which can respond by resonating at externally induced frequencies, using just the power of the call itself. So basically theyre magic lol
@arthurmorgan89662 жыл бұрын
Can we prevent it like using aluminum foil as a faraday cage?
@dfn036 жыл бұрын
Here in finland we dont have those stickers but in electronics and clothes there are some kinda detectors.
@dfn036 жыл бұрын
@eebenz Ok weird. I've never seen them. U sure it was in finland?
@dfn036 жыл бұрын
@eebenz Oh ok
@aryachauhan99292 жыл бұрын
So is it basically easier to shoplift? I've seen some bars outside the shops your have to pass through I thought that's what they check for
@JJceo5 жыл бұрын
Hmm 🤔 I wonder if I can use a hackRF1 to broadcast an inverse 6.2MHz frequency that cancels out a stores’ detection system? Causing every single detector to go off at the same time.
@earthmotherr52303 жыл бұрын
If you try please make a video
@brucel.60785 жыл бұрын
Awesome videos.... and your drawings are great too!!!! Thank you
@krystofmacek7 жыл бұрын
wow. super video...
@LowSkycsgo6 жыл бұрын
kryštof Macek heeej ty take pozeras yunez
@loganbyrne30546 жыл бұрын
So that basically explains that reusable RFID tags use solid coils and a solid state capacitor and the pins is the link to reactivate the sensor for multiple uses. Right? So basically, just cut the coil and terminate the circuit.
@xxexplosivexxxxexplosivexx85123 жыл бұрын
So the next time I will go shopping, I will take a capacitor with me, so It will trigger every alarm I go by.
@RanaRao_Chandrachur2 жыл бұрын
Just take a sharp pin and make some holes into the capacitor and the alarm will not be triggered.. simple as that 😁😂😂 [For educational purposes only don't misuse it 😂]
@question45524 жыл бұрын
Nah...I will just deactivate my PC and...Done! Payment complete
@Eduardo_Espinoza2 жыл бұрын
I remember playing with these when i was a kid& I thought it was a secret item/content with my game
@peckelhaze69346 жыл бұрын
It would be interesting to see if they are affected by a magnet.
@annaplojharova14002 жыл бұрын
They are not, there is no magnetic material in these to saturate or so. The whole thing responds just to changes of the magnetic field at (and arround) the resonant frequency. Does not matter what DC background is there. Only when ferromagnetic materials would be involved in the resonance, the strong DC magnet may saturate them so change the resonant frequency, but there is no such material in these. Other story are those "plastic" tags the cashier is taking away. Those use a ferrite rod as the coil core (these operate at way lower frequencies), which may saturate when exposed to a strong field, so a strong magnet nearby may make them "invisible" for the door scanner. But needs really a strong field (the materials tend to saturate at about 0.5T, which is the field many high power electric motors operate with), did not tested that.
@svendan16065 жыл бұрын
Thank you. I found one loose in the packet of a Powerbank. First I thought it had something to do with optional wireless charging! 🤣😂😜 Thanks to your video I now fully understand! 👍👍👍 (There was indeed also one under the price label!)
@TECHNDJ7 жыл бұрын
I thought it was NFC tag to use
@antkoos6 жыл бұрын
Techno Champs yes, it was
@internetkanserindenkorunma68855 жыл бұрын
i tried it its not
@hanalen92594 жыл бұрын
This is RF label
@soonersciencenerd3832 жыл бұрын
what about the paper thin silver-colored contacts in the white plastic sticker on the inside of the clear package? they are magnetic.
@NanoMine5 жыл бұрын
That chicken joke is impressive.
@cosmefulanito59332 жыл бұрын
No. It doesn't work like the video says. The system absorbs the energy from the transmitter, so the receiver stops receiving it. And the alarm sounds. It's called a "radio frequency trap."
@hamzakamran56922 жыл бұрын
Hi, Could you tell me how they are manufactured like what machine or material is used. Thank you
@adamhammouri5266 жыл бұрын
add a beper beeb beeb beeb beeb beeb
@creblabo4 жыл бұрын
Hey, can you send me the circuit for the resonance frequency detector, I want to find the resonance frequency for a Tesla coil
@creblabo4 жыл бұрын
Btw. I like your videos
@ingussilins63304 ай бұрын
Make LC oscillator on this freqency and loop antenna. Next step - make haos in market - all alarms turn on...
@DarkDarkPrincess4 жыл бұрын
very informative! also hilarious!
@Muwaaaahid3 жыл бұрын
Just wondering why you keep stretching out the last wooooooooord, at the end of your senteeeeeeeeeeence.. It's almost like you're asking a question rather than making a statemeeeeeeeent, due to the stretch and drop in your piiiiiiiiiitch...
@cipriancostinstoica7402 жыл бұрын
if it is problem goes on and off ? because i dont understand ?
@mohamedmonged70374 жыл бұрын
Hi sir would you tell if i can use this sticker as camera or there are optical sticker which can work as camera my idea to count passes cars foom beside me an show name
@CoolKoon3 жыл бұрын
No, you can't use this for anything like that.
@esmailmusa7124 жыл бұрын
Good day sir. Do u have an idea how would i disable the sticker instead of using deactivator? In that way, the sticker can re use or Enable again.
@user-hq2fy5cs1k5 жыл бұрын
*Can you give us the oscillator circuit ?*
@DG-od4si6 жыл бұрын
in india the alarm will sound "ding a ling a ling"
@Spartacus400011 ай бұрын
What happens if you break the circuit (ie run blade across the capacitor a couple of times) *asking for a friend
@czonczike6305 жыл бұрын
Now i know when i shop at TESCO i see the electromagnetic one
@WolferAlpha4 жыл бұрын
I found out why this alarm sometimes sounds out of nowhere when you enter the store, it's the NFC of the cell phone interfering, after all the NFC uses a coil
@CoolKoon3 жыл бұрын
Actually NFS usually uses a completely different frequency, so it shouldn't react to these gadgets at all.
@WolferAlpha3 жыл бұрын
@@CoolKoon Those alarm towers whistling when I pass empty-handed disagree, but they only blow a whistle and it doesn't always happen
@snnehapawar25763 жыл бұрын
Hi, I accidentally washed my shirt with this tag on. I had forgot to cut it before washing.
@CassetteMaster6 жыл бұрын
Mind=Blown!
@13579_dg Жыл бұрын
So to deactivate them all you need to do is break the circuit like poking a hole through the capacitor in the center of the square?
@nightmist79774 жыл бұрын
Oh that’s why I got caught while stealing a underwear
@seyedmarashi6 жыл бұрын
hello, very nice video, what is your oscillator ic?
@burrdid2 жыл бұрын
i work at a store so i was planning to hide these on people
@Joshua-ei5fm4 жыл бұрын
I didnt understand anything by showing us on how to remove the square radio frequ tag off the product n escape a store without worries n not setting the antena alarm off, we would like a video off that upcomming, sorry 2 Year Late, subscribed also
@hanalen92594 жыл бұрын
Use the RF deactivator
@grigoreman71984 жыл бұрын
Do you have a schematic somewhere on this oscillator?
@Aris.alight Жыл бұрын
Is the green glue gonna activate it
@wandihaura39994 жыл бұрын
Welcome to 21 century
@greenapplesupermarketr8533 жыл бұрын
where did i found this kind of electronic surveillance (for the use of shop)
@an26344 жыл бұрын
I need an answer to my question please .. is any scanner that can cancel the NFC sticker? I need a quick answer guys because I will be ordering tools soon for my project :(
@hanalen92594 жыл бұрын
I think the video of label is RF label.
@ibrahimbek28042 жыл бұрын
Thank you
@AnilGupta-ds1ly Жыл бұрын
Nice useful information with good presentation skills and also nice buzzer😂😂😂😂 beep beep ....😅haha
@joeblow85935 жыл бұрын
Very good
@DIY-electronics-automation3 жыл бұрын
Nice project! Would you share the circuit diagram of the 74hc14 osc?
@TheCalibso2 жыл бұрын
3:11 minutes
@EnderShadowborne Жыл бұрын
What's the value of this capacitor?
@helent21272 жыл бұрын
If the coil is damaged or not complete will the security sticker still set off the alarm?