Garage Door Opener Signal Technology (continued)

Garage door openers rely on relatively advanced technology for both their signaling and the laser sensitivity safety mechanisms. The technologies that power these can also be used in many other applications. We explored already how the military can use such technologies essentially "for evil", i.e., in weapons, but there are a lot more applications for these really high tech developments than that.

For example, the same radio frequency waves that can be used for transmitting a garage door opener signal can also be used to transmit certain forms of communications. Pretty much anything that can be converted into standard computer 0 1 formatting can be transmitted by a radio (slow wave) signal. These types of communicators work by transmitting signals through what is essentially "free space", including our atmosphere, by modulation what are known as electromagnetic waves. So this is another electromagnetic technology, here. The waves used for radio, however, are very low below the frequencies of light that is visible to humans. (Whereas the weaponized versions operate at very high frequencies.) The electromagnetic radiation travels via electromagnetic fields that oscillate through the air. Information can therefore be conveyed by modulating one or more of several properties of these radiating waves, like frequency, phase, or amplitude. Then, these waves pass though an electrical conductor, and induce an alternating current within that conductor. Then these alternating currents are detected and then transformed into some sort of understandable information, such as zeroes and ones, or direct sound.