3 ms·
> Hence the huge receiving dishes, and apparently one 100 foot dish alone does not collect enough energy to reconstruct the signal Around 30k photons a second.
by Intralexical 2y ago
> Hence the huge receiving dishes, and apparently one 100 foot dish alone does not collect enough energy to reconstruct the signal
Around 30k photons a second.
You have: ((23W/(pi*astronomicalunit^2)) * (pi(50ft)^2)) / (6.626e-34J/Hz * 10GHz)
You want:
Definition: 36024.297 / s
…I don't know if that's a lot, or where the noise floor is.
- quesera 2y agoAs a comparison of unlike but related units: > For example, the data rate used from Jupiter was about 115,000 bits per second And I think it affects the calculation slightly that Voyager's downlink transmits at about 8.4 GHz (X-band). Good stuff here: https://www.allaboutcircuits.com/news/voyager-mission-anniversary-celebration-long-distance-communications/ https://www.allaboutcircuits.com/news/voyager-mission-annive...