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The COSETI Observatory

  • Diffraction-Limited Beams

    • ETI Transmitter Gains
    • ETI Transmitter EIRPs
  • Antenna Gains

    • Microwave SETI
      • 300 meter Arecibo dish at 1.5 GHz
      • Gain = 74 dB
    • Optical SETI
      • 10 meter Keck-type telescope at visible wavelengths
      • Gain = 154 dB
      • 80 dB (100 million gain advantage)

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