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...at the top of a tall building or similar site. When used in such fashion, beacons can be considered a form of [[Telegraph#Optical telegraph|optical telegraph ...ated on land or on water. Lighted beacons are called ''lights''; unlighted beacons are called ''[[Day beacon|daybeacon]]s''. [[Aerodrome beacon]]s are used to ...

...|accurately]] repeats once per [[second]]. PPS signals are output by radio beacons, [[frequency standard]]s, other types of precision [[oscillator]]s and some ...

...ns, which have a limited range, hence requiring the user to be near these. Beacons include [[cellphone|cellular]] [[base station]]s, [[Wi-Fi positioning syste A spatial scan system uses (optical) beacons and sensors. Two categories can be distinguished: ...

...ia Minor]] to the Byzantine capital, [[Constantinople]]. The main line of beacons stretched over some {{cvt|450|mi|km|-1|order=flip}} with stations placed fr ...

...]] was said to have had a habit of fooling his warlords with false warning beacons to amuse [[Bao Si]], his concubine.<ref>{{cite book |author=Sima Qian |auth ...

...itle=Mathematical encoding within multi-resonant planetary systems as SETI beacons |journal=Monthly Notices of the Royal Astronomical Society |pages=4945–4950 ...rior searches wouldn't have detected cost-effective electromagnetic signal beacons.<ref>{{cite news |title=Stingy aliens may call us on cheap rates only |url= ...

...ime [[navigation]]al aids providing a platform for [[light]] and [[radio]] beacons ...

...7 RTGs<ref name=bbc20210105/> to power uncrewed lighthouses and navigation beacons on the [[Arctic policy of Russia|Soviet arctic coast]] by the late 1980s.<r |[[Beta-M]] || rowspan=8|Obsolete Soviet uncrewed <br />lighthouses and beacons || 10 || 230 || [[Strontium-90|⁹⁰Sr]]TiO₃<ref>{{cite ...

[[File:Pony in brecon2.jpg|thumb|A [[Welsh mountain pony]] in the [[Brecon Beacons]] [[National park]], [[Wales]]. Sheep and cattle also graze on this upland] ...

...n instrument receives radio signals from [[radio beacon|navigational radio beacons]] whose position is known, and by precisely measuring the arrival time of t ...io signal used by aircraft and ships for [[navigation]]. The locations of beacons are plotted on navigational maps used by aircraft and ships.<ref name="Delt ...

...n" on Dictionary.com, and the site installs up to 223 tracking cookies and beacons on your computer so that other Web sites can target you with antidepressant ...

...ef> have also launched experimental satellites carrying K_a band beacons recently.<ref name="spaceref-20050426">{{Cite web |date=26 April 2005 |titl ...

[[Category:Napoleonic beacons in England]] ...