Make Your Own Cell Phone Signal Booster for 2G-3G-4G Network
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- เผยแพร่เมื่อ 12 มิ.ย. 2018
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Link : PCB layout, Silkscreen, Schematic
bit.ly/3zEfvnh
bit.ly/2sxxLNg - วิทยาศาสตร์และเทคโนโลยี
that's a nice trick using a jammer at a certain distance, when he power up the said booster, there is someone who turn off the jammer.
Ven Giron yea always suspicious when you can’t see the entire phone in the video. What’s off screen. I think you nailed it Ven
see my post above. he is a fraud!!!
i think so.hahaha..
well done for debunking
his circuit is right but there is no way to tune the signal
the current design is just bouncing everything 20hz
crap for wifi 2.4
You are correct.. but the jammer is none other than the circuit he built.. when he turn off the jammer the signal resume..
Don't be fooled. The gsm signal is in 1Ghz range. It is very difficult to build an amplifier in that range. At such high frequencies even the length of the track matters. It has to be very carefully designed.
Hi. I've been looking for how to make one for a long time. Would you know how to do it?
@@cmdrone1315 You can't make one. It requires an R&D center where you can see and measure the waves and signal strength in equipments. It also requires good knowledge. E
Thank you- if it were easy there’s be a ton of videos that showed legit solutions
These transistors have a maximum frequency of about 200MHz. They both are in common emitter configuration and so trying to pass 3g and 4g signals, that are anywhere from 0,7 to 2,6GHz is quite silly. It's basically a jammer that produces higher harmonics by switching the output LC circuit of C6 L2 with 20MHz on/off pulses. The switching signal for T2 is coming through the filter after the amplifier T1 has picked up random noise with the resonance frequency of tank circuit L1 C8. Note that T2 doesn't have a base resistor, so it's relying on strong signal coming through C7 in order to make it initially conduct in order to cause oscillations. Also 3G and 4G use both signal polarisations, this can't possibly amplify both horizontal and vertical polarised signal at the same time.
@Feathered Skeptic which transistors are you talking about ? They have it down as bf495 and bf195 for the same transistor...
@@ronallens6204 Doesn't matter, they are both low to medium frequency transistors. If this is an amplifier for 2G to 4G signals it should be fairly broad band, and working on much higher frequency. I'd expect them to use something like BF93, 2SC3358 or some other type of microwave transistor. Usually the maximum transistor frequency has to be much higher than the maximum frequency of the broadband amplifier, especially if we're talking about a common emitter circuit. So they will need microwave transistors for this to work.
@@featheredskeptic1301 as is, would it work for over air uhf TV? Most of my channels are lower end.
@@featheredskeptic1301 as is, would it work for over air uhf TV? Most of my channels are lower end.
@@ronallens6204 No. The UHF band is between 300MHz and 3GHz. The transistors in the video have a maximum frequency of 250MHz. Even if you build it as a resonance amplifier on the specific channel you want to receive, it still isn't going to work. The transistor has a gain of 1 for it's maximum common collector frequency (Ft). For everything higher than this the gain goes lower than 1. Even for a 300MHz signal you will need a transistor with a maximum frequency of at least twice that, and even then it's going to be a terrible amplifier.
That's not to say that this isn't an amplifier to begin with. It's more like a jammer.
total cost of the project: 5 minutes 17 second of your life, plus the sudden realisation you've stood in bullshit
A query for which frequencies exactly the amplifier works and how many db the transmitting antenna has?
This circuit is great.
It even works for wifi.
Signal increases 2 bars and no more disconnects.
Also on it close to digital tv antenna no more picture breakup.
I put it next to my auto engine. Mileage to up 10-15 mpg and lots of power.
I put it on my pillow at night now the bald spot on my head is growing a lot of hair now.
Also missing 2 tooth in front new one grow back.
Wife too small on top put circuit in her purse now like mountains but problem now she poop a lot.
You should build on black box sell make a lot of money.
🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣
May be VHF band but not even lower part of UHF with those can be reached. For microwave bands "SMD and special transistors" is a MUST!!! Use it for VHF TV antenna.
Show us full video like how to fix that remaining part like soltration under the board
18pf variable/ trimmer capacitor will work in this project.??????????
Not a snowball's chance in hell that this would work
spot the RF guys in the comments haha
Yes itt works!! And I have build 2 types , this and one type with only one antenna and not a cristalll but 2x the bf 494 transistor, with an range from about 100 meters!!!! And right in the city I did used once and at the moment I was in a restaurant where I saw on the otherside of the street ( about 20 meters!! )the phones were blocked and many trafic in between with say 50/60 cars, it is amazing!!
@@antonycasanova4067 no. Believe me RF isn't this simple. If it was my colleagues would be out of a job.
Hello, I understand the point in difficulty that you mean by this, it is indeed the case that the frequencies differ a lot per country, the frequencies run from the 450.4 Mhz to the 1990 Mhz, these are divided into 4 continents, it is indeed very difficult to calibrate here this that you keep producing some kind of echoes that make it almost impossible, shielding the coils is a requirement as well as good expensive large trimmers, and to do it right is my scheme a lot more extensive than can be found here on the internet.
I have been working in the amateur radio for over 35 years and I certainly have the necessary experience, so it is advisable to start with a quad-band, using 4 transistors as well as 4 coils, 4 trimmers and therefore 4 antennas.
Mvg Antony
@@antonycasanova4067 no. Even if this device was capable of receiving the signal from the phone and re-transmitting it at a higher power, it would be doing so indiscriminately because it cannot interpret the signal. It would as a result amplify its own signal, causing interference with itself in a positive feedback loop until it was only re-transmitting the same signal, producing one signal at it's resonant frequency. A device cannot simply capture rf at a frequency and instantly retransmit it at the same frequency in the same location without this issue. The only way forwarding works is either at different times by storing and forwarding at different times, or by re-transmitting on a different band which requires demodulation and remodulation on a different carrier.
This device cannot do that.
This is just one of many reasons a circuit this simple to amplify a phone signal does not exist and this video is steaming bullshit to get views for God knows what reason.
You work in amateur radio? You ever turn on two radios on the same band and key the mic on one? What happens. Feedback. That beeeeeeeeeeeeeeeeep
That happens in rf too. So on principle alone this device cannot without actual rf electronics.
Which antenna receives an external signal? I want to put this on a tower with coaxial cable.
In Mexico I think we use another frequencies, will it work?
Is it necessary to place it next to the cellphone? Can’t place it on any part of the room?
there is no details in descriptions
where to buy this composantes
Eh, Are you there? Can you link to PCB board because you didn't put anything on the description. So please Reply to me now.
tem como substituir esse capacitores cerâmicos por algum outro?
pois nao consegui encontra esse com esses valores
The Indian market needs a product like this..
I wonder if these types of designs with protruding antennas (antennae) wouldn't end up working as signal jammers, simply because of the loop or feedback effect from output to input via air or open space,so my recommendation here would be to use units like this as it is done in the case of repeaters whereby a receiver antenna element that should normally be raised high above or around roof tops be connected to the input of the circuit in question through an appropriate coaxial cable
How is this schematic work if the transistor used (BF195 or BF495) have transition frequency of about 250MHz and the 3G/4G frequency bands starts from 700MHz up to 2600MHZ? Even 2G networks starts from 380MHz. All this means is that the gain of these two transistors at frequencies above 250MHz will be lower than 1 :)
4g possible
@@MTKIDS-vi3ku but mobile was 2G
@The zero any country..... what he means is the transistor doesn't gain more than 250mhz...
he literally made a jammer
@@bxeagle3932 but a Jammer will not boost signal strength but suppress it...what I think is it amplify weak signal through a band pass filters and mixed it with a 20mhz signal in the end you get dubler signal of plus and minus...I need to implement it and analys with oscilloscope. ..rather speculate
@@bofloa nice explanation
Friend I ask can I use a circuit of a wireless microphone, in the audio input I put the antenna and the negative audio input the one positive wing with the resistance of 220k you can tell me
Rapi banget,,,mini booster,,,kreatif banget bikinnya,,,top dhahh.terus berkarya untuk manfaat orang banyak & semua itu bagian dr ibadah,,,sukses sll.siippp
Please share the PCB link layout and parts in description
Genio.!! Saludos desde Argentina. Aunque hablo español intento traducir tus vídeos porque son fantásticos. Saludos
Cuéntame si tuviste éxito.
Muy bien proyecto por favor tienes el diagrama por que no lo dejo en la descripción del canal alguien lo tiene
gracias edu si te pones a hacer estas placas vendeme una xD
FUNCIONA???
No creo que funcione en red 4g, solo gsm.
I try my best to keep my comment respectful although sometimes it's too hard! I advise you to read some elementary text about FREQUENCY then design any electronic circuits . First test your magic work then share with others.
can you explain please sir
I thnik this circuit will not be working, because recieving and re transmitting the same frequency will be mixed up.
OK who here stop the video and went back and started watching fast workers.
From where i can the readymade pcb.
Building a Booster for 1 GHz or more with two 100Mhz transistors. Thats a real miracle. 😂 😂. In best case its just an Oszillator for 20 MHz.
B-b-b-but d-didn't you see the t-t-test?
harmonics.
Probably picks up a signal from the 35 th harmonic , but won’t improve reception and it looks like it’s one way RX only.
@@johnnz4375 surely its ...if you consider it as a booster of the signal from the tower ..however it is not it also boost signal from transmitting phone ...both tower and phone operate at same baseband...so you do not need another circuit
My first clue was the 20MHz crystal, without even considering the frequency the transistors could amplify. Really? 20MHz, this thing could only put out a load of shite.
Can you tell me where to to get the pcb and components(address).I would like to try this circuit.Thanks.
What are the frequency of 2G, 3G and 4G bands? What are frequency band width of so old BF195? Do you know them?
the frequencies run from the 450.4 Mhz to the 1990 Mhz, these are divided into 4 continents
Bhai....same project and elements (ZERO PCB)per banao please
can we put 24 Mhz crystal instead of 20 Mhz
and please tell how to set variable capacitor capacitance in circuit
This is something that I have been looking for for a very long time! ! Thanks!
This circuit is great.
It even works for wifi.
Signal increases 2 bars and no more disconnects.
Also on it close to digital tv antenna no more picture breakup.
I put it next to my auto engine. Mileage to up 10-15 mpg and lots of power.
I put it on my pillow at night now the bald spot on my head is growing a lot of hair now.
Also missing 2 tooth in front new one grow back.
Wife too small on top put circuit in her purse now like mountains but problem now she poop a lot.
You should build on black box sell make a lot of money.
@@gordonwelcher9598 i think u r mentally upset. U should check yourself any saicologest
Thanos : Does it work ??
This channel : No
Thanos : What it cost ?
This channel : Everything!!!
Thanos : Welcome to the party !!!
iron man : lets finish the party
What was the cost of this. Everything
@@dallibabs cost of making marvel's end game
thor:wait guys my hammer is remaining now🤣🤣
I like your creativeness!! Keep it up👍👍👍
Thanks
where is the circuit diagram ?
I hope its not a scam,.... range ? strength ? and what bands it boosts?
It can measure length between 0 and 10cm so it has a range of 10cm. Its strength = 440 MN/m2. It is designed to boost almost every band.
is like a modem but this only have the option of amp the signal
@Congjian Liu unless you could find a way to miniaturize it and then affix it to a smart phone
195 transistors is IF amplifier transistors for Mw /SW radio
Radio/transistors is low frequency device but Mobile phone is high frequency device please clear how this device work 900/1800 MHZ
Is there anyone who can do this project completely???
nice video .please tell me any side effect from this board for eg, Radiation...
kvs Reddy
Please provide link to buy this pcb and .components list.
the indicator of telephone showed tension of magnetic-field. not moreover...
Very nice👍👍👍
thanks bro :)
@@CreativeScience hare krishna
Please, could you leave the link of the project plan and the PCB model?
What it looks like he's done is taken an IN signal (the network) through an antenna spaced like 3 inches apart from the antenna used for the OUT signal (the cellphone) and simply used a signal amplifyer circuit inbetween so: [IN-antenna]--->[signal amplification circuit]--->[OUT-antenna]. This means that if the signal is good about 3 inches from your phone this circuit could in fact save you the trouble of moving your hand 3 inches. But since that will never be the case it does nothing. But more interestingly however, if there is in fact a signal it would in fact act as a weak signal jamming device since it sends what it recieves wich, between the 2 antennas 3 inches apart will create a loop. The network will say something and when the transmitting end of the device repeats the message to the phone it also repeats it to the recieving end of itself (as if the network sent a new message), causing it to keep sending completely irratic signals. It is a phenomenon called "crosstalk"...
he is just scamming you. Its clear when he was making the coils....he used bare copper wire....the coils are doing nothing.
@@cplcabs Hahaha, i didn't even consider that 😂 Good stuff!
When are you going to give the schematic
It will work good with radio signals. On the other hand if you think that it works on cell phone network as well then you are slightly wrong. I'm not gonna give you the detail but make it as shown on the video and test it while dialling or calling. The result, it will drop to low.
HI there , I assume this one is not working in Germany because of a different frequency spectrum ? Thank you ! :)
Hola buenos dias; el amplificador sirve para amplificar señales de FM (frecuencia modulada)?
Add an op-amp, you ll get less noise
What is the value i want to set in trimmer
What is the value i want to set in trimmer
What is the value i want to set in trimmer
Can I setup this circuit on breadboard
Can you quote a price tag for the signal booster? I'm willing to buy it
bro just buy from amazon for couple of hundred
I want one produced
Where is the description?? I found nothing in your description
Can this be made to work with AC adpator and what is the cost if i want to buy this
Let see mobile app data transfer increase when you turn it on. Bi-directional communication is mandatory, not only on voice calls but on data packets as well.
PCB NUMBER AND THEN MAKER'S ADDRESS IS IMPORTANT DEAR. PLEASE TRY TO PROVIDE REQUIRED ALL DETAILS IN THE SAME VIDEO.
But he is using a custom pcb
Can you feel me the place you made the PCB?
how or where did you desing the table for the circuits
Theo Joe salutes you..
:)
There are commercial products you can buy like this...
LMAO...
whut
@@CreativeScience pls link geber file
Description incomplete. How to build PCB? Calibration?
Hi, this also works for 5G antennas and I want to use it for mountaineering or places that have little antenna and I want to increase the internet speed that I want for gaming.
This circuit is great.
It even works for wifi.
Signal increases 2 bars and no more disconnects.
Also on it close to digital tv antenna no more picture breakup.
I put it next to my auto engine. Mileage to up 10-15 mpg and lots of power.
I put it on my pillow at night now the bald spot on my head is growing a lot of hair now.
Also missing 2 tooth in front new one grow back.
Wife too small on top put circuit in her purse now like mountains but problem now she poop a lot.
You should build on black box sell make a lot of money.
From where can I get the pcb layout or can you please give me the link to buy the pcb layout.
Where are the calibration instructions for the variable caps?
I strongly doubt this circuit works at cell phone frequencies.
To the author: please show test results and explain the functionnality of this design!
Welcome to click bait, my friend
Yes I agree, 2 variable caps and no desc as to what their values should be, kind of hard to tune with no Information.
Hi, you seem to know what to ask. Did you manage to find any info/video/website that I can use?
I am still waiting for the PCB and other informations in your description box since one year ago
It dos'nt work bro
Have you test it bro?
just take apart a weboost and copy that lol
do it by yourself not buy it instantly, if you are not electronics literate, you need someone to create it for you
Where to buy the trimmer capacitor online ??....i haven't found any store selling this type....please tell me
This channel always updated useful videos
Clear circuit diagram and instrument pls
BF195 -> Transition Frequency (ft): 100 MHz ...
Thats because the transistors multiply each others fT... duh bro 🙄
😂😂😂😂😂😂
😎👍☘🍺
@@peterfitzpatrick7032 take the bf 494
good but how much range covers
Can it boost signals from phone back to the cell towers... And how it's range (inside home) can be increaded?
Can i use bread board to replace this board?
yes u can and connect with wire
Yes, you will get same effect - nope.
You tested it for only 2G bands (looks like)
The transistors used in this project confuse me in video subtitles its BF495 but in diagram it says BF195
both are same
BF241, BF255, BF495, BF595, and BF195 are all npn transistors that work in the 200mhz range so they're interchangeable in this project. Radio can be finikey so I would use 2 of the same if possible..... but BF241, BF255, BF495, BF595 are all listed as excited replacements for BF195 by a data sheet I found. I'm guessing when he drew up the scema he intended to us 195 but either found 495's cheeper or couldn't get 195's....
Sir we will uesd 22agw copper wire or not found in martkat sir 22 agw copper there .
Sir we will use 22 awg copper wire ........
did you do this project according to the circuit diagram given on this videos???
hello creative science... how do i get this panel you solder the transistors to...or you can just say the name
if you add a double-back Heinz rectifier between [bat -] and xtal, it will convert Pb to Au
your welcome
Bro it didn't work, i did the circuit connection as shown in your circuit diagram, led is blinking that means circuit connection ok but signal is not boosted
This circuit is great.
It even works for wifi.
Signal increases 2 bars and no more disconnects.
Also on it close to digital tv antenna no more picture breakup.
I put it next to my auto engine. Mileage to up 10-15 mpg and lots of power.
I put it on my pillow at night now the bald spot on my head is growing a lot of hair now.
Also missing 2 tooth in front new one grow back.
Wife too small on top put circuit in her purse now like mountains but problem now she poop a lot.
You should build on black box sell make a lot of money.
Will it still work with no signal. So there's no signal and you use the signal booster to get free signall???
Bro are you satisfied your parts connections correct and diagram wise
@@gordonwelcher9598😂😂😂😂
Please send circuit board how to purchase
Okay, so I put all of it together, except had to use a larger crystal. I turned it on, next thing I knew, I woke up in a UFO with my signal booster hanging out of my arse. Now that was a signal booster!
Sir in the diagram 8.2pf capacitor is connecting to 2.2k resistor or is directly connected to 220k resistor please reply sir
Do you sell these ready made?...More than willing to buy one!
It doesn't work
Ist heute der 1 April? 😂😂😂😂
What is the alternative transistor of BF495 ?
Can i use any NPN transisto???.....for example BF494
"Schematic available soon". Yeah, right. Maybe if you're referring to the geologic time scale 😂
Please digrame
Sweet Bro!
2G(GSM)-Originally designed on 900MHz range, now also available on 800MHz, 1800MHz and 1900 MHz ranges.
3G(UMTS Band)-IMT2000 (Technology Neutral)
Common trends for 850MHz, 900MHz, AWS, 2.1GHz
LTE_4G-IMT2000 (Technology Neutral)
Common trends for DD, 1800MHz, AWS, 2.1GHz, 2.6GHz
All Bands share either 900Mhz, or 1800Mhz which is double the frequency of 900Mhz, therefore it can use the same antenna. Is your device tuned to 900/1800Mhz?
It looks like the device works only on one frequency, the question is on what....?
He is using 2 trimmer capacitors ,but he didn't told, for which value of capacitance the circuit will be tuned!!
I want this
30 pf Trimmer , plz show the Diagram Thanks
with those coils, it looks like the freq would be way too low...also what the heck does a 20mhz xtal have to do with a 900+mhz signal?? looks like this thing jusy makes strong noise that yhe phone is seeing.
Do you have any alternative for( 30 PF variable trimmer capacitor ) I tried to buy it's not available
Try removing it from any old set top box mother board
What is the logic behing 15 turns coil?. What if 1 less or more?
How to get the pcb or how to sold everything
Plzzz tell me
You have to make your own PCB from the "Screen Shot" you will take or you might use a breadboard and just wire it up that way. I think I'm going to ask Mr. Carlson if he thinks that this will work. If I get a reply he'll know for sure. Hope this helps.
I made it. But doesn't work. Tell me. How can I add a pictures of my circuit??? I want to show you.
you make jammer
How we can trust that it will work for 3g and 4g network also???
Will this circuit support internet strength? Where can I get circuit board
Nice vfx work bro
You used insulated Copper wire or without insulated
Insulated Copper Wire
Guruji RC world :
TIP : You could use plain copper wire ( without insulation) BUT is mandatory that must be light or little (almost imperceptible) separation between turns . Too much or not separation at all can affect the performance of the circuit ( the impedance / resonance would be wrong) . You could have a frequency drift , out of frequency or not working at all device. Or simply paint the naked wire (with spray paint) let it dry and then make the coils.
@@luismorales4617 Nice tips broo
@@CreativeScience can u ecplain the theory about this
Obviously insulated..
the pcb design is available?? pls share the link
Made this signal booster. Signal still weak but device opened an alternate universe. 😆😅
If u don't mine can u explain and how the circuit works in next video. I want to how to describe the parameter for that purpose
Thank u
Sir please upload circuit diagram. I really needed for my home town for Jio Network. I got signal strength 1 out of 5
:(((
You're right
what is the size of the pcb. starting from the length and width
Sir what is its range of transmit sginal at home and how to increase range and include continues power source and it support 4g or not
IRRESPOSIBLE GUY பொறுப்புடன் pcb பற்றிய தகவல்களை தெரிவிப்பதில் உனக்கு என்ன தடை. அந்த தடையைப் பற்றியாவது தெரிவி.
Bro,avaru video la circuit diagram kuduthurukaru bro nalla check pannunga
வரும் ஆநா வராது
"see video description for more details" THERE ISNT EVEN A DESCRIPTION
😁
Does this really work? I have a 2G phone in desperate need of a booster at my home location, where it receives literally NO service. At work, it gets full service with a tower in the area to give me service. At home, the strength is horrible. I have no service at all at home. In desperate need of a booster, are there ANY recommendations? I have a samsung SGH-X497, running on Simple Mobile, which is powered by T mobile. Please, somebody let me know.
nothing comes out of the list of components and the diagram to download in the description you could add them
Thnku bro mera project work Kr raha hai bahut ache se
thanks for your replay bro
Most wlcm bro
Bhai mujhe ye janna hai ye pcb kahan milega aur kaise milega
عبد الرازق شیخ bro ye PCB mene khud banaya hai kisi se liya hi nahi
@@CreativeScience bro please make 12v to 220 v 1000 watt inverter how it possible please make video
I need this one how much for this
I need this one how much for this
I need this
Your files are for a signal jammer, not a signal booster. The schematic and PCB are the wrong files.
Is this surely work for android 4g lte mobiles.pls reply