A search strategy for finding extraterrestrial radio beacons

The Principle of Anti-Cryptography, together with our knowledge of the structure and properties of the universe, lead to the suggestion that extraterrestrial radio beacons will transmit continuously and omnidirectionally, using binary sense-switched circular polarization modulation. The expected frequency of transmission is the rest frequency of hydrogen, relative to the galactic center. Probable signaling rates are within two orders of magnitude of one second. Methods of implementing the strategy are suggested, from both the receiving and transmitting viewpoints.