2 ms·
> EU has the Galileo and USA GPS, so why not use Glonass? There's a good chance that the non-Russians in the area do not have Loran equipment. Further, all GNS
by throw0101a 5y ago
> EU has the Galileo and USA GPS, so why not use Glonass?
There's a good chance that the non-Russians in the area do not have Loran equipment. Further, all GNSS systems basically use the same set of frequencies (E1/L1, L2, E5/L5):
* https://gssc.esa.int/navipedia/index.php/GNSS_signal https://gssc.esa.int/navipedia/index.php/GNSS_signal
* https://gssc.esa.int/navipedia/index.php/GLONASS_Signal_Plan https://gssc.esa.int/navipedia/index.php/GLONASS_Signal_Plan
So they can jam these small number of frequencies, and take out their own system (along with everyone else's), but they are ready for this, and the opponent(s) may not be.
- LatteLazy 5y agoThey could also just turn it off. Or change encryption so it will work for Russia but not others.
- throw0101a 5y agoThey'd have to turn it off selectively for just that region, as they may want to keep it working in other places (Siberia, Vladivostok). Maybe be easier to just set up some jammers around the area of operations. Jamming would also probably take out all the other GNSS systems, which could be an operational benefit to them if they're better prepared; which is probably why they run a Chayka/Loran system in the first place—as does China: * https://www.gpsworld.com/china-expanding-loran-as-gnss-backup/ https://www.gpsworld.com/china-expanding-loran-as-gnss-backu...