This video might be 4 years old, but it's still solving parents problems. I had this same issue and you just solved it. Thank you very much for sharing you knowledge.
Great instructional. My son bought two RC cars with his Christmas money and waited anxiously for them to arrive. He was very disappointed that they were on the exact same frequency. I was sorry for him and assumed it would be far too complicated for me to fix with him. He found your video and showed me. NO JOKE 10 minutes later, we had race-able cars! THANK YOU!!!
4:00 The racing one has screws hidden behind the hubcaps which need to be popped up, after that you can remove the wheels and access the underneath screws! 6 years later later, your video is still relevant! Thanks
Same here, from AliExpress for the 2 little ones and one kids wasn't very happy. I hoped for an internal switch. Thanks for easing my mind and helping that the kids can both be happy today. You are my today's hero. Oh and a great Dad too.
Ok, I messed up. Having both cars close by each other was a problem as both were picking up the signal no matter how much I turned it. I realized it changed when putting more distance between them. Just all that turning with a too little screwdriver broke eventually the metal core ot at least it cannot be any further be turned. Yes, that happened on both :( Now, we have 3 unhappy people. Take care.
This is one of the best how-to videos I've ever seen--excellent visuals, very clear explanation and demonstration, and zero time-wasting "fluff talk." Thank you so much!
This is SO awesome!! We got the same cars for Christmas (well, the fire truck and police car from the same company) and it just turns into a toddler death match when one of them unwittingly moves the other one's car! You are a lifesaver!
accidentally got 2 different RC cars with the same frequency! I followed your video, it wasnt as straight forward. I had to tweak to and fro between both cars. But eventually I managed to change it. Now my kids can play with their cars together. THANK YOU!
Thank you so much. I had bought two cars both operating at 27 Mhz for my kids. Followed your video and was able to tune a pair of remote and car to work at a different frequency.
Thanks! I bought a couple of RC monster trucks ( RCG Racing 1/16 4WD Rock Crawler RTR) for my son and myself. Same thing as above they both were controlled by the controllers. 5 min with this video and the problem is solved! You've made a very excited 3 year old very happy 😊
Glad I found this. I want to get my twins their own rc cars for their birthday. I knew the frequency issue would cause a problem. I'd like to avoid three-year-olds' in-surround-sound meltdowns and frustrations. Thanks!
Thanks mate! Really helpful vid. Bought two RC cars on eBay sold as 2.4Ghz but after opening up everything as you've shown, turns out they were both 40Mhz...
In my case it was half-true as pad had freqency set on static crytal, but car could be tuned as on your video while i resoldered crystal. Great instruction!
Reverieru I've just opened up both of my kids cards and found they don't having the tuning pot, can you share details of the crystal you changed to, looks pretty straight forward swap if I can source the right component.
Really helpful video, easy to understand instructions and I don't know anything about this. Recently purchase two remote control dinosaurs from Riteaid Xmas clearance. Ran into the same issue, when both children would play. Now they can play in the same room. So glad I didn't have to return them, less than $4 each. Thank you so much! 🤗
Good tip, thanks for that! Just a question: any recommandations regarding how to manipulate that "special" screw? It is not metal, seems like a "rocky" screw. I just destroyed one.. right when i was happy to see that i can change the freq on the rc. Can that screw be replace with a metal/ normal screw?
Lol Amazing.... I have so many of them since years... but dint knew we could change this. In college days we tuned the transformer of Radio in electronics lab but here dint think of it. Oh my my
Wish it was as easy as that for all RC stuff but thats life Bet your family love you with those sirens going all the time I used to know one mum when the batterys when flat they never got replaced in noisey toys until i started going out with her and started replacing the battery's lol
I added a 2.4 ghz Bluetooth speaker on my 27 mhz rc car, and the car stops responding when the speaker is turned on, does the two different frequencies affect each other? I need this for a school project, pls reply.
It will affect it to the point of swamping the mhz range , the higher the frequency the more tightly packed the waves thus the gigahertz rf will fill the megahertz wave signal and basically block it by overwhelming the 2.7 mhz.
I broke the "Adjustable High-Frequency Ferrite Core Inductor" aka transformer on my kids rc car while trying to turn it with a screw driver so now I'm going to buy a pack of 10 of them on ebay for about $2.50 and try to solder one on and get his car going again. Anyone know if there's a special "tool" to turn these little things or if a tiny flat head screwdriver is the best option (that's what I used when I broke it)?
I have the same model car but remote doesn't have same PC board. Instead it has Crystal soldered straight on board and can not be changed without removal.
Hi Matt, Nice save for your nephews. Just a caution. There are only 6 frequencies available in the area that you are in that the FCC authorizes for R/C. they span 26.995 - 27.255MHz in 50Khz increments. The other frequencies in the toys were probably for other countries. The are also 30 channels up at 74-76 MHz. You probably didn't have to adjust that transformer too much get a different channel. Also, and I am sure you know this, use plastic for those adjustments. Try putting one of them on your scope and see if you can see the output. I love R/C and Ham. You'd be surprised how much the little toys can cause havoc when they get out of factory adjustment.
Hi @Ed McLaughlin, Do you happen to know if a rc board that is listed as 27MHz and 49MHz (and has variable transistors on both the receiver and transmitter boards) can just use those two frequencies or can I set it in between at 40MHz (I have three boys who are all building their own vehicles so I need to be able to set them at three different frequencies)? Would appreciate any advice you have
Sir, After watching your video I tried to adjust the frequency of my son's toy car remote. But, somehow the transformer core broke and came out. How to fix it?
I would like to ask the following. I have notice that most rc toy cars at 27 MHz with only forward and backward function(meaning without left and right) start by themselves, without using the transmitter. Do you know why this is happening? In order to exclude other radio waves sources I have closed the rc car in a box which is wraped with aluminum foil and it steel starts by its self. Have you notice this kind of behavor in the rc toy car you are using in your video? Do you have any explanation why this is the case for the most rc toy cars with forward and backward function only?
at 1:22 you can see how simple the transmitter circuit is, I did not measure the output frequency of the transmitter, but I am guessing different between forward is a minor change in the modulating or carrier frequency. This makes the 2 mode transmitter quite cheap. I did not have these cars very long, but it would not surprise me if they move forward or backward "on their own". I believe this occurs due to a cheaply designed modulation technique, so the car will react easily to ambient radiation. Similar to how how a lightning strike will cause an AM radio to make a pop noise.
Thank you for your fast reply. One last question. In order to block the ambient radiation I have created a faraday shield by taking a box and wraping it with aluminium foil and placed the car inside the box. I have checked that the shield is ok( the rc car cant take the signal from the transmitter). But the car steel moves "by its own'. Do you think that this is due the internal circuit of the car? A capasitor maybe? Since,all external radiation is blocked. Do you have any idea on how to check that?
I have tried making my own Faraday cages/shields in the past, and device inside was still susceptible to external to noise, this i believe was caused by poor construction and grounding on my part. Electromagnetic interference (EMI) in theory should prefer to travel through the metal foil therefore significantly decreasing the amount seen by the device within. Have you tried controlling the RC vehicle with the control while it is inside the Faraday cage? I suspect that the the car's receiver is too "sensitive" meaning the communication protocol is poorly designed to ingnore EMI. For example more modern communications require an initial sequence before listening to the incoming signal. Initial sequence "10110101"(Hi there) immediately followed by "00001101" (reverse). There could be internal circuit noise that triggers the move forward or backward command. Good luck I hope you can find more info online.
Yes I did tried to control the car while it was inside the Faraday cage and the transmitter couldn't reach the car's reciever. Anyway, thank you once more for your time and help.
I've got one car that is 27.145 and one coming which I hadn't noticed until after I'd bought it that says it is 27. Will they interfere with each other? I'm guessing so. Might have to get the old screwdriver out!
Hello bro, I got 2 rc bus with 27mhz transmitter and receiver. Transmitter in remote doesn't have variable transformer to change frequency. I see 27m & 49 m . But no option to change to 49m. How to adjust the frequency in remote. Please help
I have 8 rc helicopter but they are various types friqunez and also I have one transmitter that can operate the one of the rc helicopter but now have to operate all other rc helicopter it possible or not in yours way
Video was very straight forward. I attempted this method, and I seem to have cracked the core in the remote. I was never able to rotate it. Now remote needs to be very close to the unit to make it move. I guess I’m screwed eh?
If there is a crystal and the transformer internal magnet is cracked would that cause it not to work? Could replacing the transformer make it work perhaps?
It is unlikely to work. It is similar to trying to use a TV remote on a different brand TV. There isn't a set protocol for the control signals of RC cars, they are just required to transmit within particular frequency ranges with the proper levels. but hey if it were me I would probably try it anyway :)
![HIWWHEE | OHM [Official MV]](http://i.ytimg.com/vi/OJJLtTLqLag/mqdefault.jpg)
This video might be 4 years old, but it's still solving parents problems. I had this same issue and you just solved it. Thank you very much for sharing you knowledge.
Yes; I'm in the same boat!
Great instructional. My son bought two RC cars with his Christmas money and waited anxiously for them to arrive. He was very disappointed that they were on the exact same frequency. I was sorry for him and assumed it would be far too complicated for me to fix with him. He found your video and showed me. NO JOKE 10 minutes later, we had race-able cars! THANK YOU!!!
4:00 The racing one has screws hidden behind the hubcaps which need to be popped up, after that you can remove the wheels and access the underneath screws!
6 years later later, your video is still relevant! Thanks
Same here, from AliExpress for the 2 little ones and one kids wasn't very happy. I hoped for an internal switch. Thanks for easing my mind and helping that the kids can both be happy today. You are my today's hero. Oh and a great Dad too.
Ok, I messed up. Having both cars close by each other was a problem as both were picking up the signal no matter how much I turned it. I realized it changed when putting more distance between them. Just all that turning with a too little screwdriver broke eventually the metal core ot at least it cannot be any further be turned.
Yes, that happened on both :( Now, we have 3 unhappy people. Take care.
This video is now 8 years old and just saved my butt, thank you
This is one of the best how-to videos I've ever seen--excellent visuals, very clear explanation and demonstration, and zero time-wasting "fluff talk." Thank you so much!
This is SO awesome!! We got the same cars for Christmas (well, the fire truck and police car from the same company) and it just turns into a toddler death match when one of them unwittingly moves the other one's car! You are a lifesaver!
+Candice Phillips Glad I could help.
accidentally got 2 different RC cars with the same frequency! I followed your video, it wasnt as straight forward. I had to tweak to and fro between both cars. But eventually I managed to change it. Now my kids can play with their cars together. THANK YOU!
:) Happy to help.
CoKohKitchen how did you change the freq ....???
@@HeilmanHackatronics what's the name of that
Thank you so much. I had bought two cars both operating at 27 Mhz for my kids. Followed your video and was able to tune a pair of remote and car to work at a different frequency.
thank you so much I wanted to use my rc with my friend but they were both 27mhz thank you so much
How to figure out what frequency a remote control car is working on
Thanks! I bought a couple of RC monster trucks ( RCG Racing 1/16 4WD Rock Crawler RTR) for my son and myself. Same thing as above they both were controlled by the controllers. 5 min with this video and the problem is solved! You've made a very excited 3 year old very happy 😊
Glad I found this. I want to get my twins their own rc cars for their birthday. I knew the frequency issue would cause a problem. I'd like to avoid three-year-olds' in-surround-sound meltdowns and frustrations. Thanks!
Thanks mate! Really helpful vid. Bought two RC cars on eBay sold as 2.4Ghz but after opening up everything as you've shown, turns out they were both 40Mhz...
In my case it was half-true as pad had freqency set on static crytal, but car could be tuned as on your video while i resoldered crystal. Great instruction!
Reverieru I've just opened up both of my kids cards and found they don't having the tuning pot, can you share details of the crystal you changed to, looks pretty straight forward swap if I can source the right component.
Appreciate the real helpful videos and share them guys. I had my neighbor's kid controlling my kids rc car. This is awesome to learn now.
Thanks confirmed my best guess for solving same problem. Did wonder how to scrub around not having a hz metter
Just now fixed my son cars with your technique. Thanks
Bro thanks for the video u helped my 2 kids .without this video i dunno how many times they r going to fight
I bought two rc controller transmitter for my robot project. Thanks you for giving solution to this problem.
thank you so much for this!! we had a struggle with this due to that issue and your video really helped a lot and solved our problem.
Dude! Amazing! Saved my bacon with my twins, and new transforming cars!
VERY HELPFUL, THANK YOU SO MUCH BRO!
Great Video quick easy and i can understand what your saying thanks for the video, my brother and I can finally race together
Thanks bro I made it and it's working 👍👍
Really helpful video, easy to understand instructions and I don't know anything about this. Recently purchase two remote control dinosaurs from Riteaid Xmas clearance. Ran into the same issue, when both children would play. Now they can play in the same room. So glad I didn't have to return them, less than $4 each. Thank you so much! 🤗
awesome
This video helped me a lot I had a a rc car that had no remote when I bought it thx a lot!
Good tip, thanks for that!
Just a question: any recommandations regarding how to manipulate that "special" screw?
It is not metal, seems like a "rocky" screw.
I just destroyed one.. right when i was happy to see that i can change the freq on the rc.
Can that screw be replace with a metal/ normal screw?
Same here, and now it is damaged, so unsure what to do
I'm in the same situation, did you have to replace the part?
I was so excited about this! seemed so easy. But both of my remotes don't have transformers so I don't know what to do now.
you have a crystal oscillator chip instead. you might have to switch with a different oscillator chip with different frequency
Tysm this video changed my life for the bettter
Wow, thanks for the help, man. Now I can play racing cars with my sister. 😁
have you done on nonprogramable 2.4ghz toy remote?
Lol Amazing.... I have so many of them since years... but dint knew we could change this. In college days we tuned the transformer of Radio in electronics lab but here dint think of it. Oh my my
Thanks, man. It worked.
Very informative, Thanks for posting.
It's really helpful for our race because we 5 has same frequency
Thank you so much for this... the range of the rc car dropped after I changed the frequency is this expected?
yes... you can fix or even increase the range by turning the transformer the opposite direction
you lowered the frequency which lowers the range.
Thanks! I had 2 rc cars, one had the remote and the other didn't... the one with the remote broke and I couldn't use it, but now I can thanks :D
A lot thanks sir this was the question i was searching for last 2 yours now i found an answer thank you very much
I purchased 3 cars for my kids and they all are on the same frequency. Can I do 3 different frequencies?
Nice going to try this with my tyco fast traxx missing control with my super rebound control.
Thanks so much for showing the disassembly. I was trying to open the car and I didn't see the two screws under the rear wheels.
Wish it was as easy as that for all RC stuff but thats life
Bet your family love you with those sirens going all the time
I used to know one mum when the batterys when flat they never got replaced in noisey toys until i started going out with her and started replacing the battery's lol
Great hope I can do the same with other cars. Thank you for sharing
Perfect, just what I needed.
Thanks for this video!!
adjusts, proceeds to drive the toy off the table lol :)
is changing the frequency can maximum the range of it?
sorry newbie haha
Higher frequency is higher range
I tried doing this with 3 cars.. I was able to fix 2, but I lost the frequency for one.. any tips on how to connect it?
Ima just deal with I’m not trying break my car so I will lust go 50 sq feet away from each other
Lol 🤣🤣😂 if me and you don’t do this I’m going to knock you out🤣🤣
Thank you so much for this info. Very usefull
How to program other rc control on a old car bc my son lose the original control.any information
Thank you so much. Hopefully this works with my car
I tried this method on a 27ghz car but turning the transformer knob on either the car and controller make no difference and it just keeps working.
Very useful, thank you so much!
I added a 2.4 ghz Bluetooth speaker on my 27 mhz rc car, and the car stops responding when the speaker is turned on, does the two different frequencies affect each other? I need this for a school project, pls reply.
It will affect it to the point of swamping the mhz range , the higher the frequency the more tightly packed the waves thus the gigahertz rf will fill the megahertz wave signal and basically block it by overwhelming the 2.7 mhz.
Hello there! Does adjusting effect the range?
Need to try to do this for an RC car that we lost the remote to. Thanks!
I broke the "Adjustable High-Frequency Ferrite Core Inductor" aka transformer on my kids rc car while trying to turn it with a screw driver so now I'm going to buy a pack of 10 of them on ebay for about $2.50 and try to solder one on and get his car going again. Anyone know if there's a special "tool" to turn these little things or if a tiny flat head screwdriver is the best option (that's what I used when I broke it)?
I have the same model car but remote doesn't have same PC board. Instead it has Crystal soldered straight on board and can not be changed without removal.
I have rastar rc but I dunno why the range is just 4-5meters. How to increasing its range? is changing frequency solve the problem?
V. Informative vedio thanks a lot sir
Hi Matt, Nice save for your nephews. Just a caution. There are only 6 frequencies available in the area that you are in that the FCC authorizes for R/C. they span 26.995 - 27.255MHz in 50Khz increments. The other frequencies in the toys were probably for other countries. The are also 30 channels up at 74-76 MHz. You probably didn't have to adjust that transformer too much get a different channel. Also, and I am sure you know this, use plastic for those adjustments. Try putting one of them on your scope and see if you can see the output. I love R/C and Ham. You'd be surprised how much the little toys can cause havoc when they get out of factory adjustment.
Thanks for the information, I was wondering about the fcc bands for r/c.
Look at Part 15 also. I am at 915MHZ with my drones. Your nephews have a great Uncle by the way!
Whats the one for Texas
Hi @Ed McLaughlin, Do you happen to know if a rc board that is listed as 27MHz and 49MHz (and has variable transistors on both the receiver and transmitter boards) can just use those two frequencies or can I set it in between at 40MHz (I have three boys who are all building their own vehicles so I need to be able to set them at three different frequencies)? Would appreciate any advice you have
Sir, After watching your video I tried to adjust the frequency of my son's toy car remote. But, somehow the transformer core broke and came out. How to fix it?
You probably have to replace the transformer. If the whole transformer fell out you could try to solder it back in place
What trade can fix my car remote?... eg Electrician!
OMG super useful - thanks for making this video!!!
I would like to ask the following. I have notice that most rc toy cars at 27 MHz with only forward and backward function(meaning without left and right) start by themselves, without using the transmitter. Do you know why this is happening? In order to exclude other radio waves sources I have closed the rc car in a box which is wraped with aluminum foil and it steel starts by its self. Have you notice this kind of behavor in the rc toy car you are using in your video? Do you have any explanation why this is the case for the most rc toy cars with forward and backward function only?
at 1:22 you can see how simple the transmitter circuit is, I did not measure the output frequency of the transmitter, but I am guessing different between forward is a minor change in the modulating or carrier frequency. This makes the 2 mode transmitter quite cheap.
I did not have these cars very long, but it would not surprise me if they move forward or backward "on their own". I believe this occurs due to a cheaply designed modulation technique, so the car will react easily to ambient radiation. Similar to how how a lightning strike will cause an AM radio to make a pop noise.
Thank you for your fast reply. One last question. In order to block the ambient radiation I have created a faraday shield
by taking a box and wraping it with aluminium foil and placed the car inside the box. I have checked that the shield is ok( the rc car cant take the signal from the transmitter). But the car steel moves "by its own'. Do you think that this is due the internal circuit of the car? A capasitor maybe? Since,all external radiation is blocked. Do you have any idea on how to check that?
I have tried making my own Faraday cages/shields in the past, and device inside was still susceptible to external to noise, this i believe was caused by poor construction and grounding on my part.
Electromagnetic interference (EMI) in theory should prefer to travel through the metal foil therefore significantly decreasing the amount seen by the device within.
Have you tried controlling the RC vehicle with the control while it is inside the Faraday cage?
I suspect that the the car's receiver is too "sensitive" meaning the communication protocol is poorly designed to ingnore EMI. For example more modern communications require an initial sequence before listening to the incoming signal. Initial sequence "10110101"(Hi there) immediately followed by "00001101" (reverse).
There could be internal circuit noise that triggers the move forward or backward command.
Good luck I hope you can find more info online.
Yes I did tried to control the car while it was inside the Faraday cage and the transmitter couldn't reach the car's reciever.
Anyway, thank you once more for your time and help.
nice job bro... it was really helpful for me
Sir when I did this the range was just reduced to 1.5 feet only. Please help.
I'm trying to make a drone out of my rc car, but I am facing problems. Can you help me?
I've got one car that is 27.145 and one coming which I hadn't noticed until after I'd bought it that says it is 27. Will they interfere with each other? I'm guessing so. Might have to get the old screwdriver out!
Thank you!
Mine didnt have the option to screw with a flat head, just a silver jellybean-looking unmoveble part :(
Thank you!!!!! Very helpful😄
Hello bro, I got 2 rc bus with 27mhz transmitter and receiver. Transmitter in remote doesn't have variable transformer to change frequency. I see 27m & 49 m . But no option to change to 49m. How to adjust the frequency in remote. Please help
Helpful video, but dude you should do something about that fingernail fungus. Try soaking in apple cider vinegar
Can you help me please...I don't have the frequency button on my remote and car???
I have 2 RC...the transmitter on the car can change..but the controller there's no transmitter can be change...they used like a fuse...
What if there's five of those transformers that change the mhz?
I need to change a 75.590 to an rc car that frequency is 75.550. What should I do?
Thanks i have the same issue ...
How do I make it longer distance please trying to fix a fpv project..... cheap bushes rc crap remote I think....please help anyone
What happens if you strip that transmitter screw 😢
I have 8 rc helicopter but they are various types friqunez and also I have one transmitter that can operate the one of the rc helicopter but now have to operate all other rc helicopter it possible or not in yours way
put it on 49Mhz 27.145 is right between channels 15 & 16
15a
This helped me so much
Ok so toys of the same brand come automatically with the same frequency cause I want 20 of the same shark champer to swarm people
Video was very straight forward. I attempted this method, and I seem to have cracked the core in the remote. I was never able to rotate it. Now remote needs to be very close to the unit to make it move. I guess I’m screwed eh?
well i sure hopes this works, getting the frequncy to match up maybe easy or difficult, i will yave to get farther into it,but it should work
What can I do when I lost my remote control and I have a car without remot?
you are doomed to live with a broken rc car staring at you paralized
buy a Flysky i6 for 45$
Will these work on a wall climb car remote?
Nice Work man...
Shitload of luck, there could have been some internal quartz crystal to the IC controller and it would be nogo:)
If there is a crystal and the transformer internal magnet is cracked would that cause it not to work? Could replacing the transformer make it work perhaps?
I'm trying to make a drone out of my rc car, but I am facing problems. Can you help me?
omg its for kids but you solved the biggest prob thx
I dont have that screw on the conttoler, but i have it in the car?
Watching cuz my dad just bought 5 cars and half of em are in the same freqency
Bro it work for you???😭😭
ive lost my controller to a 27mhz car, i have a 2.4Ghz remote but i cant find anywhere if i can use it to drive it, can someone help?
Nice
Thank you very much
quick qeustion???
does changing the remote frequency means i can connect my remote control to other rc car?
It is unlikely to work. It is similar to trying to use a TV remote on a different brand TV.
There isn't a set protocol for the control signals of RC cars, they are just required to transmit within particular frequency ranges with the proper levels.
but hey if it were me I would probably try it anyway :)
Thank you so much bro. It worked fa me
Thanks man
excellent job. few people know about this hack I am very happy by applying this hack to my car