3 ms·
They need to drop beacons on all the surfaces to make navigation easier.
by mannyv 2y ago
They need to drop beacons on all the surfaces to make navigation easier.
- tonyarkles 2y agoYou know… something I’d never really considered before now is that Mars has an absolutely pristine RF environment that would be pretty much impossible to find anywhere on Earth. I’m not sure how the overall noise floor would look with the lack of a global magnetic field but I would guess that you could set up a really great positioning system using small low-power beacons since you could use any frequency you want instead of trying to compete with, say, all the 2.4 and 5GHz noise on Earth.
- throwup238 2y agoIt’s been studied somewhat, at least with satellites: > Assuming a dish antenna with 1-m diameter, for a downward-looking antenna the total noise temperature is about the same as the Earth’s for all frequency bands of interest, with ±15 percent deviations. For an upward-looking antenna, the noise temperature is less than half that of Earth. [1] [1] https://ipnpr.jpl.nasa.gov/2000-2009/progress_report/42-149/149C.pdf https://ipnpr.jpl.nasa.gov/2000-2009/progress_report/42-149/...