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Posted by on Nov 17, 2017 in Uncategorized | 0 comments

Technology Behind Off Road RC Cars

Radio controlled cars, popularly known as RC cars are gas/battery powered model cars that can be easily controlled from a distance with the use of a unique remote or transmitter. The term RC has in the longest time used to mean either “radio controlled” or “remote controlled”.

If it is remote controlled, it means it is connected to the controller by a wire. However, in the modern day, RC controlled means to vehicles that are controlled by a radio frequency link.

Principle of Operation

The way RC cars operate may be different to some extent. However, the basic principle remains the same. Each RC car has a motor, receiver, power source and a transmitter.

The transmitter sends electromagnetic frequencies/radio waves to an RC car or other remote controlled device. The person operating it moves the controls on their remote control radio. The transmitter then talks to the receiver through the radio carrier wave.

The receiver can be a circuit board with internal antennas. In other instances, it may be a bigger antenna on the outside of the remote controlled car.

Therefore, any radio signal coming from the transmitter ends up at the receiver. The receiver then converts these signals for the servo motor. The receiver ultimately transforms all the radio signal broadcasts received from the transmitter into the suitable electronic signal. This is the one that is needed for all other components within the control system.

A lot of the available systems use the amplitude modulation for the radio signals. After that, they encode positions with the help of pulse width modulation.

The radio is wired up to either electronic speed controls or servomechanisms. These perform actions like braking, steering, and throttle control. In other cars, they engage either forward or reverse gears.

Electronic speed controls and servos are controlled by the receiver through pulse width modulation. Fuel powered models use a servo for braking and throttle control. What are the best off road RC cars?

Parts Involved in the Car

The following are some of the parts that are involved in a RC car:


It is made up of a circuit board as well as an antenna. The circuit board is normally located inside the car and you cannot see it unless your tear apart the car. The receiver is responsible for getting radio waves from the transmitter. The receiver then triggers the motor based on the instructions.


The motor is responsible for the movement. It steers, turns the wheels as well as spinning the propeller and much more.

Power Source

The power source in most of the entry level RC cars is electric. This means that it is powered by batteries. The moment you are well versed with them and have the right amount of cash to spend, you can get yourself a nitro-powered RC car. Nitro cars use nitro which is Methanol, oil and nitromethane.


This is a rectangular, mostly aluminum or at times carbon graphite frame. It is supported by springs and attached to the axles. It holds the body and motor of a radio controlled car. The chassis has to be slightly light in weight. In addition, it has to be very strong and be able to hold all the body components.


Off Road RCs are designed to take on any sort of terrain. In case you are an outdoor or high performance fan, this is for you. Examples of off road RC cars includes rock crawlers, desert trucks, buggies, dune buggies, rock crawlers, stadium trucks, short course trucks as well as truggies.

They are mostly 2WD and 4WD enabled depending on your choice. In addition, they are fitted with travel suspensions, open wheel designs and knobby tires. This is essential because it ensures that there is effective ground clearance as well as an enhanced grip when they get on a track.

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