Free space loss from Earth to Moon = -227dB Free space loss from Moon to Earth = -227dB
+ 24 dBi antenna gain at ISP. ========= - 125 dBm
total : - 454 dB Free space loss ...
?ommunication impossible, even if to use "1Hz or less bandwidth" & "symbol rate is about one symbol every 10 seconds"
I did the EME path loss calcs many years ago. I *know* I didn't come up with a path loss of -454dB. I don't have either the formulae or the time to look it up right now but I think your path loss calc may be in error.
-- Brian Lloyd 6501 Red Hook Plaza [EMAIL PROTECTED] Suite 201 http://www.lloyd.com St. Thomas, VI 00802 +1.340.998.9447 (voice) +1.360.838.9669 (fax)
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