Does your garage door sometimes open up for no reason at all? Does it seem like a poltregiest has possessed the garage doors in the neighborhood?
Fear not! There are several reasons a garage door could be randomly opening, and none of them have to do with ghosts.
The more likely scenario is that some form of radio frequency is interfering with the operation of your garage door opener
remote control. These controls operate via waveform signals, so
anything that emits a radio wave signal from about 300 to 400 megahertz
could be at potential risk for causing random openings.
Generally,
TV, fan, and other household remotes wouldn't interfere, as they
actually use infrared frequencies. A more likely culprit would have to
be a government-grade mechanism, or a police force radio frequency.
Odds are, you won't be able to do anything about it on their end.
But
for you, you can reset the DIP switched on your remote and your opener
such that they use a different frequency to communicate, thus bypassing
the interference.