Us Garage Door Frequency

It s a good thing we can only hear a limited range of audio frequencies 20hz to 20 000hz because if we did hear everything in the radio frequency range it would drive us crazy.

Us garage door frequency.

Most modern remotes operate on a rolling code type system and dependant on the brand operate on 310 315 and 390 mhz. The garage door opener remote which uses a radio frequency signal to open and close the automatic door brought even more convenience to the automobile owner. Once revealed this innocent device was transmitting a 315 megahertz radio signal. Surprise surprise this is the same signal that is used by garage door openers key car fobs as well as many short range radio applications.

The garage door opener frequency at issue 390 megahertz has belonged to the military since around 1950. Openers have legally operated at that frequency since at least the early 1980s karasek. As the automobile became more popular the garage became a building of its own. Your garage door is likely using a frequency clustered around the 2 4 ghz band that s been designated the ism band otherwise known as the industrial scientific and medical band.

Although this device is very useful it was also causing the disrupted frequency. Johnson founder of overhead doors invented the automatic electric garage door in 1926.