How Does Garage Door Remote Control Work

The fob that you carry on your keychain or use to open the garage door is actually a small radio transmitter.

How does garage door remote control work.

In simple terms it sends signals through a radio frequency just like what the broadcasting radio stations do. The force of the door s motion can also be adjusted so the door stops moving. Some garage doors have infrared sensors that shoot an invisible beam across the door. The machine kicks in to arrest the door s motion or to make adjustments if a door isn t opening or closing completely.

The only difference is these remotes are not powerful enough to send signals in a long range. The garage door remote won t work but the wall switch does check the batteries and electrical connections in the remote to make sure they are working correctly. Once the radio receiver on the opener gets the signal from the remote transmitter it activates a relay that starts the motor running. If they are working correctly the problem might be because of the safety sensors.

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. Before you can use your remote control or wireless keypad you should be able to program it first with your garage door. Garage door remote serves as a small radio transmitter that sends special code to your garage door opener to open or close your garage door. We use them every day but most people don t know how garage door remotes work.

Garage door remotes are actually radio transmitters. Modern garage door motors have radio receivers that operate at 315 mhz. But in order for this to work out both device should be of the same frequency of each other.