Preferred frequencies for SETI observations

Details Preferred frequencies for SETI observations Preferred frequencies for SETI observations

Oct 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983buda.iafcq....z&link_type=abstract

International Astronautical Federation, International Astronautical Congress, 34th, Budapest, Hungary, Oct. 10-15, 1983. 4 p.

Mathematics

Logic

Extraterrestrial Intelligence, Microwave Transmission, Project Seti, Radio Frequencies, Centimeter Waves, Millimeter Waves

Scientific paper

The proper radio bands for observing and transmitting signals to and from other star systems in a search for extraterrestrial intelligence. It is assumed that other civilizations will have developed the energies and other resources of their solar systems, and that they will use electromagnetic radiation as a communications medium. The sizes of the space based antennas that other civilizations might have built are discussed in terms of the resulting interferometers, the possible wavelengths used, and the technological bases assumed. It is suggested that transmissions might be most effective if confined to a few microns bandwidth to which the galaxy is largely transparent. However, no universal, 'magic' frequency can presently be identified, although nondirectional emissions may congregate around the 'water hole' of radio frequencies in the universe.

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