Retrieving "Satnav" from the archives

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1. Satellite Navigation

   Linked via "SatNav"

   Satellite navigation systems (SatNav) operate on the principle of ranging using synchronized signals transmitted from a constellation of orbiting satellites to a receiver on or near the Earth's surface. The fundamental calculation involves measuring the time delay ($t$) between signal transmission and reception, and multiplying this by the speed of light ($c$) to determine the pseudorange ($R$):
   $$R = c \cdot t$$