Ma'anar Almanac na GPS
Idan ka taba yin mamakin dalilin da yasa mai karɓar GPS a wasu lokutan yana daukan lokaci don ya kasance a shirye ya kewaya bayan an kunna shi, saboda dole ne ya samo wasu bayanan da suka hada da ɗaukar sakonnin tauraron GPS.
Zaka iya haɗuwa da jinkirin farawa idan ba'a amfani da GPS don kwanaki ko makonni ba, ko an dauke shi da nisa mai nisa yayin da aka kashe. A cikin waɗannan lokuta, GPS dole ne ta sabunta bayanan almanac da ephemeris sannan sannan adana shi cikin ƙwaƙwalwar.
Matsalar GPS tsofaffi wanda ba shi da wani almanac, ya ɗauki mafi tsayi ga "tayawa" kuma ya zama mai amfani saboda dole ne ya yi bincike a cikin tauraron dan adam. Duk da haka, wannan tsari yafi sauri a cikin sabon na'ura koda kuwa sun rasa almanac.
Jimlar lokacin da ake buƙatar tattara wannan bayanan GPS an kira TTFF, wanda ke nufin lokaci zuwa na farko gyara , kuma yawanci kimanin minti 12.
Abinda ke ciki a cikin Bayanin Almanac na GPS
Almanac GPS yana da jerin bayanai da kowane tauraron dan adam GPS ya watsa, kuma ya haɗa da bayani game da jihar (kiwon lafiya) na dukan tauraron tauraron dan adam na GPS da kuma bayanan sirri a kowane tauraron tauraron dan adam.
Lokacin da mai karɓar GPS yana da ƙwaƙwalwar almanac na yanzu a ƙwaƙwalwar ajiya, zai iya samo sigina na tauraron dan adam kuma ƙayyade matsayi na farko da sauri.
Almanac na GPS yana haɗa da bayanan zane-zane na GPS da kuma bayanai don taimakawa wajen gyarawa saboda ɓarna ta hanyar ionosphere.
Zaka iya sauke almanac bayanai daga ALM, AL3, da kuma TXT fayil din daga shafin yanar gizon Intanet na Amurka.