The Sun's irregular activity can wreak havoc with the weak sat-nav signals we use.The last time the Sun reached a peak in activity, satellite navigation was barely a consumer product. But the Sun is on its way to another solar maximum, which could generate large and unpredictable sat-nav errors.It is not just car sat-nav devices that make use of the satellite signals; accurate and dependable sat-nav signals have, since the last solar maximum, quietly become a necessity for modern infrastructure...
...So as the Sun builds up to its peak in a few years' time, be aware that your sat-nav may for a time give some strange results - or for a short while none at all.
Read more at - 'Sat-nav devices face big errors as solar activity rises'
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