3 ms·

No, if you do the math it's about 40 bytes per second (300bps) for Earth-Moon-Earth using their 240-antenna array.

• shakna 1y ago
  Care to share the math, if you've done it? It's 1.3 to 1.6 seconds each way to the moon, by radio link. JPL's much, much, much bigger arrays can only achieve 64kbps.
  • ant6n 1y ago
    I dont get it, How does latency affect bandwidth here?
    • shakna 1y ago
      Because we're not stationary, and nor is the moon. Latency means greater dispersion, and lower successful return rates.
      • but-vaccum 1y ago
        Latency itself doesn't mean squat. Throw a pair of trancievers into deep space and no relative motion and all bitrate limiting factors (dispersion, multipath, doppler shift- I'm sure there's more) disappear besides SNR/inverse square and retransmission. Going beyond intuition- secondary reasoning says since GSO bandwidth & bitrate is acceptable for TV and sat phones by the hundred. Tercheriary is we have/had a few hundred bps from Voyager II and that's a might bit further out than the moon, and it was called out that using an 80meter dish it could be pushed to a little over 1kbps- which means at some point inverse square becomes the only non-neglegiable factor. So please, explain with something besides repeatedly saying "latency." Even if I'm wrong, they're strong enough counters to deserve more than a single word.
        • shakna 1y ago
          ... I'd love to see, this particular project, "throw a pair" of tranceivers into deep space.
  • deleted 1y ago
    [deleted]
    • shakna 1y ago
      That would be with laser, which isn't really relevant here?