How to Change Frequency on Remote Control Car: The Ultimate Guide

How to Change Frequency on Remote Control Car? Remote control cars are incredibly popular, especially among children and racing enthusiasts. While everyone loves to hit the open track and take their car for a wild ride, the quality of performance can be greatly improved by tweaking the frequency of the car. Different remote control cars have different frequencies with which they operate, so tune-ups must be specific to each one. By tuning your car’s frequency, you can make it more efficient and better capable of handling any terrain you choose. Though customizing your car through a frequency change may take some skill and patience, it’s well worth it to enjoy the most out of your remote control car.

What frequency do remote control cars use?

Most radio-controlled cars operate on either 27mhz or 49mhz. Due to an FCC allocation, these two radio frequencies can be used for remote control of such things as hobby RC cars, garage doors, and lighting systems.

Intricate RC models can operate at 72MHz or even 75MHz. However, most fans would eventually run into one of these models, despite their complexity and rarity compared to RC automobiles.

Remote control vehicles operate on a certain radio frequency since they will not function on any other frequency. Radio frequency interference can be problematic, depending on the type of apparatus it affects. Any RC car you use should have its radio broadcasts able to be modified legally.

What Do You Need to Change the Frequency on an RC Car?

To put it another way, if you have two RC vehicles operating on the same frequency, the frequency shifting can be problematic. If such is the case, it’s possible that you can avoid making any significant alterations to the vehicle. Depending on the model, certain radio-controlled cars can operate on a wide range of frequencies, often between 27 and 28 MHz.

If your vehicle has multiple available frequency bands, you should be able to switch between them. As long as the vehicles use separate channels within the 27MHz frequency band, they should be able to function normally without interfering with one another.

It depends on several factors whether you can adjust the frequency of a transmitter to be correctly received by such an RC vehicle operating on the same frequency. If the receiver board has a crystal but the transmitter board doesn’t, you won’t be able to program the controller to work with the car.

How to Change Frequency on Remote Control Car

It’s not difficult to change the frequency of a remote-controlled vehicle. With a few simple actions, you can do this task. Learn the detailed procedures for adjusting the radio frequency of your remote-controlled vehicle here. So, let’s check out how to adjust the remote control car’s frequency.

Remove the Upper cover of the car

Removing the upper cover of a remote control car is a relatively simple task to accomplish and is key to tuning the frequency to adjust to specific environments. First, ensure the battery cables are disconnected from the car to avoid any risks to yourself or those around you. Next, use a flathead screwdriver to loosen the screws along the outside edge of the upper cover to remove it; gently lift it to pull away and out of its frame. Using your screwdriver again to unclip any clips that may be embedded into the body may also be necessary to completely remove it. To successfully change the frequency on your RC car, you’ll need to follow these steps: removing the upper cover and then accessing what lies beneath.

Unscrew the Remote

Unscrewing the remote to change the frequency on a remote control car can be intimidating to many, but with a few simple steps, it’s not as difficult as you may think. The first step is to locate the screw on the back of your remote – this is typically easy to find, but if you find yourself struggling to locate it, start by checking around the battery compartment area. Once you have located the screw, use a small Phillips head screwdriver to loosen it. Once unscrewed and removed completely, take out your new frequency board and carefully place it inside your transmitter housing where you removed the old one from then re-secure the screw until tight completing your replacement. Now that you know how to unscrew and replace the frequency on your car’s remote control, driving off-road or racing with friends will be much more enjoyable.
Change the car’s frequency first

As the PCBs have been accessed, it is now time to adjust the radio frequency. Therefore, you should start by adjusting the car’s radio frequency. The frequency of the automobile can be changed by slowly turning the adjustment screw on the RF transformer. Two or three clockwise turns on the screw are all that’s needed.

Adjust the Remote’s frequency

The frequency of the remote control should be adjusted after the car’s frequency has been changed. So start the engine and grab the remote control. Turn the RF transformer adjustment screw on the remote control until the car starts. The screw may need to be turned several times.

While holding down a button on the remote, turn the adjustment screw. While the automobile is starting, this will help you comprehend what is happening. You’ll know you’ve properly finished the process and the automobile receiver is compatible with the remote when the car starts.

Screw the car and remote

To finish it off, screwing back the pieces that were dismantled during this process is just as important. Be sure not to rush this step – if done improperly, you risk damaging the pieces and rendering your car or remote less effective than it was before. Take your time to make sure you do it correctly, as having to go through the whole process again can be quite annoying.

Also Read: How Do Remote Control Cars Work

RC Car Four Fundamental Components

Radio transmitter

Remote control (RC) cars are a blast to use, but many hobbyists are now looking for ways to go beyond the typical 56MHz range to take their racing to the next level. This is why radio transmitters for RC cars are becoming increasingly popular. These cutting-edge devices allow users to extend their range up to 850MHz, providing twice the coverage area of traditional transmitters. Furthermore, these radio transmitters feature an exceptional degree of control over steering, speed, and power usage while maintaining optimal signal strength even in conditions where other devices may falter. From beginners to seasoned enthusiasts, this technology has revolutionized the way that hobbyists enjoy their RC car adventures.

Radio receiver 

Radio receivers are essential gadgets for those looking to enjoy their favorite RC car. They allow you to use a radio-controlled device to transmit signals from the transmitter to the receiver installed in the RC car. This makes it possible for users to control the vehicle with precision, allowing them to practice advanced maneuvers and take their driving skills up a notch. Radio receivers have advanced over time, becoming more accurate, powerful, and reliable. Therefore, if you’re looking for a way to unleash your inner race driver without all the risk of going full speed on real roads – get yourself a radio receiver today and make your RC car dreams come true!

Remote controlled motor

An RC car with a remote controlled motor can provide hours of entertainment for both children and adults. Featuring speeds of up to 30 miles per hour, this hobby can also be a thrilling adventure. With its adjustable handling and control, you can customize the ride to fit your driving preference. The remote-controlled motor allows you to reprogram the speed settings and other features right at home. Whatever style of racing you prefer, there’s an RC car that exists just for that. Whether you’re competing in a derby or racing around the backyard, these cars will give you an experience and nostalgia like no other toy on the market.

Power source

RC cars are a fun way to get the remote control car experience. The most crucial part of powering an RC car is the power source, which might be either battery-based or fuel-based. Battery-powered RC cars are great for beginners because they provide consistent speed with no shock and vibration to the frame. On the other hand, fuel-powered RC cars tend to have more power, can reach higher speeds, and require much less maintenance than battery powered ones. You must decide which power source is best for you depending on your needs and preferences, as both have their advantages and disadvantages.

How Do RC Controllers Work?

RC controllers work by transmitting electrical impulses to the radio receiver board in the RC car, which in turn triggers predetermined actions.

The remote control unit can be powered by either a rechargeable lithium-ion battery or a fuel-based system, but the remote control vehicle must use a different power source. This battery powers the controller’s radio transmitter, which the remote-controlled vehicle’s receiver uses to communicate with the vehicle.

The remote control vehicle’s reception board picks up the radio frequency (RF) impulses and turns them into mechanical movement once they reach the vehicle. For radio-controlled vehicles, this means moving forward, stopping, or turning the wheel.

As was previously mentioned, if you want to change the frequency of a crystal-controlled RC vehicle, you’ll need to change crystals in both devices for it to work. This is because the RC car’s ability to receive and translate signals depends on the frequency at which the transmitter and receiver are set.

Crystal-Controlled Receiver Boards

The frequency to which a radio-controlled car is tuned is determined by the crystal in the system’s transmitter and receiver. Like something straight out of a fairy tale, right? The true explanation of this phenomenon is far more technical.

In reality, radio technology makes use of piezoelectric crystals to convert electrical energy into mechanical motion. Crystals can detect radio waves and transform them into a form that can be converted into mechanical energy, thanks to their role as diodes in radio frequency (RF) systems. The signal is “rectified,” or straightened out, so that it may be read more easily by the receiver.

To synchronize the frequency sent and received by the two devices, radio crystals are commonly connected to a tiny circuit board and used as a timebase generator.

Crystal sets can only be used to make tiny alterations to the frequency of an RC car, such as switching between channels within the same frequency range.

What Does 27MHz Mean on an RC Car?

Typically, radio frequencies for RC cars operate at 27 MHz (or megahertz). Consumer-level RC cars are typically built to operate on both 27MHz and 49MHz frequencies. The FCC has designated these two frequencies as the standard for RC transmissions.

In a race between two RC cars, if they are both set to the same frequency, radio frequency (RF) interference will render both cars useless. Manufacturers of radio-controlled vehicles typically design their products so that changing one vehicle’s frequency to 49MHz eliminates this issue, allowing both vehicles to be used at the same time without RF interference.

One of the most common motivations for trying to alter the frequency of one’s RC car is to eliminate interference caused by numerous RC cars being driven at once.


Driving a remote control car has experienced an enormous surge in popularity in recent years due to the immense amount of free will and atmosphere it offers. Many people find it relaxing or enjoyable to build or customize their mini-speed machine. With the rise of this trend, it is now easier than ever to find a remote control car that meets your needs — from the casual driver to budding racers and hobbyists. You can now find RC cars for every level of enthusiast, ranging from basic models designed for leisurely backyard cruises to sophisticated, technologically advanced expeditions ready for professional-level competition. To get the most out of your RC car experience, however, you’ll want to make sure you familiarize yourself with frequency operations and technology.