How Garage Door Remotes Work


At some point in the past, you might have parked a vehicle in a garage. To open and close the door from the outside of it can be very useful, and you may have felt curious as to how this is possible. Pushing a button on a remote control is not all that is actually occurring. However, the technology behind this can easily be understood. Not only are you able to learn something new, but knowing how garage door remotes work can benefit you if a situation calls for repair.

Like other remote technologies, devices for operating garage doors are considered remote-keyless entry. On some key rings there are gadgets that lock and unlock car doors, some of which also control car alarms. These and remote-controlled home security systems go under this general category.

Simple though it may seem to you, a garage door remote acts as a radio transmitter. Its counterpart is a receiver. This second piece of equipment is often situated underneath the ceiling of the garage. You will probably find that their interaction can be comprehended rather easily.

As a receiver, the small box receives a radio signal from the transmitter (or remote). This signal is initiated when you push the button on your device. If the door is open, this action will close it; if it is closed it will open it.

As remotes for garages were first appearing, there were issues with their function. It was not uncommon for a person to open his or her neighbors' garages with his or her own remote. Of course, this presented a problem for security and privacy. Manufacturers adjusted the frequency of the radio signals to fix this.