Editing Loran-C (section)

==Timing and synchronization==
[[File:LORAN Station Malone-Cesiums-Large.jpg|thumb|upright|left|Cesium atomic clocks]]
Each LORAN station is equipped with a suite of specialized equipment to generate the precisely timed signals used to modulate / drive the transmitting equipment. Up to three commercial cesium [[atomic clock]]s are used to generate 5&nbsp;MHz and [[Pulse-per-second signal|pulse per second]] (or 1&nbsp;Hz) signals that are used by timing equipment to generate the various GRI-dependent drive signals for the transmitting equipment.

While each U.S.-operated LORAN station is supposed to be synchronized to within 100&nbsp;ns of [[Coordinated Universal Time]] (UTC), the actual accuracy achieved as of 1994 was within 500&nbsp;ns.<ref name=LORANC2-6>{{cite web|title=Chapter 2 ̣– LORAN-C Transmissions|url=http://www.navcen.uscg.gov/pdf/loran/sigSpec/chapt2c.pdf|work=Specification of the Transmitted LORAN-C Signal / COMDTINST M16562.4A|publisher=U.S. Coast Guard|access-date=4 September 2012|pages=6, 7|year=1994|archive-date=15 October 2011|archive-url=https://web.archive.org/web/20111015065247/http://navcen.uscg.gov/pdf/loran/sigSpec/chapt2c.pdf|url-status=dead}}</ref>