Fascination About Best practices for using a garage door opener during a power outage
315MHz provides a wavelength of about 1 meter (3 foot). If the space from opener on the sensor is (one example is) a whole range of wave lengths, and the space with the opener to your car after which you can for the sensor is 50 % a wave duration much more than an entire variety, then the echo will get there from phase with the initial signal and t