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Detectability of Extraterrestrial Technological Activities


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Author Topic: Detectability of Extraterrestrial Technological Activities  (Read 698 times)
Jennifer Murdoch
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« Reply #15 on: February 04, 2010, 01:21:12 pm »

       Where PHImin is  the  sensitivity  of  the search system in [W m-2].
       For the NASA HRMS Target Search PHImin  =  10exp  (-27)  and for the
       NASA HRMS Sky Survey PHImin w 10exp(-23) (f)exp(1/2), where f is the
       frequency in GHz.  Table 3 shows the distances where the Arecibo and
       BMEWS transmissions could  be  detected  by  a  similar   NASA  HRMS
       spectrometer.

         TABLE 3: HRMS Sensitivity for Earth's Most Powerful Transmissions:

       ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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