The cat sensor does the work for you and keeps your cat safe. 1  With the Litter-Robot, maintenance is easy and infrequent. We recommend emptying the waste drawer once every 7-10 days for a single cat household, and more often if you have multiple cats.
It's simple. Radio waves travel unbelievably fastâat the speed of light (300,000 km or 186,000 miles per second). Analog radio. Ocean waves carry energy by making the water move up and down. In much the same way, radio waves carry energy as an invisible, up-and-down movement of electricity and magnetism.
As the speed per second of radio waves in a vacuum is about 300,000 km (about 3Ã10 [m/sec]), at 433 MHz the wave length Î» is. < Click to move to the calculation window >. There is a close relationship between the wave length of the radio wave and the characteristics of the antenna.