4 ms·
I agree, this is literally what LORAN was/is for navigation (and we can and should build a better LORAN), and for time distribution WWVB and WWV already exist.
by rpcope1 2y ago
I agree, this is literally what LORAN was/is for navigation (and we can and should build a better LORAN), and for time distribution WWVB and WWV already exist.
- mikewarot 2y agoLORAN was great for being in the right part of the ocean, but being up to 1/4 mile off when navigating land is unacceptable as a replacement for GPS. WWV isn't a precision timing source, and is only sporadically available depending on a number of factors. The best option would be something like a sub carrier on DTV and FM broadcasting, along with a beacon at all cell sites. Auctions of the airwaves are a hidden tax, and should end.
- ianburrell 2y agoNextNav is city-wide navigation. It looks like beacone can cover a few miles which makes sense with the frequency. It can also work indoors. Navigation system like that is useful for more accuracy or when GPS has problem. But not at the expense of 900 MHz band for other useful things. I'm surprised that they can't find an awkward slice of low-band that mobile provider would get rid of or lease.