What frequency do automated gates/garage doors work on?

Question

Is this a standard frequency? How do they vary it for each location?

Answer 1

Most garage door openers operate within a frequency band between 300-400 MHz. Different methods are used to keep one from interfering with another; newer models use digital encoding to validate a particular transmitter.

If you are interested in knowing what other devices use the same frequency range, or radio frequency allocation in general, see the linked chart.

Answer 2

Any one of the licenced free ones. The signal is modulated with an individual digital code.