How Does A Universal Garage Door Remote Work

Modern garage door motors have radio receivers that operate at 315 mhz.

How does a universal garage door remote work.

The transmitter is similar to the one in a radio controlled toy. Garage door remotes work by actively signaling the door components to turn on the motor and either raise the door up or to bring it down via the chain attached to the door. Garage door remotes are actually radio transmitters. The only difference is these remotes are not powerful enough to send signals in a long range.

When you click your garage door remote it sends a signal to the opener. The first method is to use the switches inside the remote and find the one that works with your particular brand. The garage door remote is usually programmed using one of two methods or a combination of both. In simple terms it sends signals through a radio frequency just like what the broadcasting radio stations do.

We use them every day but most people don t know how garage door remotes work. When purchasing a universal garage door remote check that it is compatible with your make and model of your garage remote equipment. The garage door opener may also be able to program the universal garage door remote through the push of a button on the motor housing. The garage door remote is a radio transmitter.

Program a universal garage door remote. Once the radio receiver on the opener gets the signal from the remote transmitter it activates a relay that starts the motor running. Inside the car or garage is a radio receiver tuned to the frequency that the transmitter is using 300 or 400 mhz is typical for modern systems. When you push a button on the fob you turn on the transmitter and it sends a code to the receiver either in the car or in the garage.