Garage door remotes with dead batteries, or those that are almost dead, can cause several problems with garage door openers. But if you are trying to make Crimsafe Brisbane, then you must take security measurements on a strict note.   

All garage door opener remote controls need batteries to work. The condition of these batteries determines the effectiveness of the remote. When batteries get older, or are in remotes that are used often, the first problem that is usually noticed is decreased range. If you’re noticing that everyday you have to be closer and closer to the door in order for the remote to work, it’s a good idea to try replacing the batteries.

Why Batteries are Important in Garage Door Remotes

Every garage remote has a radio transmitter in it, while the garage door opener has a matched radio receiver. In order for the remote to be able to open the garage door, the signal from the radio transmitter must be strong enough to reach the radio receiver in the garage. As if that weren’t enough, the radio receiver also has to be able to pick out the signal through all the other radio frequency noise in the area. The radio transmitter requires a certain amount of power to send its signal at full strength, which is the point at which the receiver has the best opportunity of “hearing” the signal.

Batteries lose their charge over time and use, and as this happens, the remote begins to lose the ability to transmit at full strength. A good example of this would be as follows: imagine you’re standing in a large room full of people talking. On the opposite side of the room is a radio you’re trying to listen to. As long as it is kept at full volume, you can hear it. At this point, someone in the room turns the radio volume down and it becomes difficult for you to hear it over all the people talking.

However, if you begin to walk closer to the radio, you start to be able to hear it again. Every time the volume is lowered, you have to walk closer to hear it, until the volume is finally turned all the way down and you can’t hear it no matter where you stand. In this scenario, the remaining battery power affects the remote’s potential signal strength, just like the volume on the radio. As battery power drops, you must move the radio receiver and the transmitter closer together so that the receiver can hear the transmitter over the other radio frequency noise in the immediate area.

You may ultimately find that you need to stand right underneath the garage door opener in order for the remote to work, then find that it no longer works at all when the battery completely dies. This would ultimately allude to the volume being turned all the way down in the example.

If you’ve stayed with it so far, remember one more thing: in the radio example above, you were in an open room filled with people talking. Now imagine the radio being two rooms down the hall, each filled with people talking. This is what the remote and receiver deal with when having to go through the walls of the car you’re driving, then across the open driveway, then through the garage door. So what was the point of all this? That good batteries are always needed for the best possible operation of your garage door remote.

Garage Remote Batteries Okay but Still Having Problems?

In the above section, an example is given consisting of you, a room filled with people talking, and a radio. The people in the room represented another problem common to garage door openers and remotes, radio frequency interference. RF Interference happens when the operating frequencies of two devices near each other overlap. Radio frequencies are a part of our everyday life and exist almost everywhere. RF Interference can happen anywhere, it depends on the strength of the two competing frequencies.