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Porsche Cars in Russia Shut Down After Satellite System Failure
(headlinesmonitor.com)
This is a most excellent place for technology news and articles.
Well, it's because Russia is jamming GPS signal, it affects planes, cars, everything relying on GPS.
That's a huge leap to assume GPS blocking was also blanketing other 2 way satellite communication frequencies.
None of these things need GPS to function. Even planes. A compass, a map and a clock go a long way.
For planes maybe it's not strictly necessary but makes things way safer