802.11a Wireless Networking paGumo
802.11a ndeimwe yekutanga 802.11 Wi-Fi yekukurukurirana mitemo yakagadzirwa muIEEE 802.11 mitemo yemhuri.
802.11a inowanzotaurwa nezvehumwe hutsika hunofanana ne802.11a, 802.11b / g / n, uye 802.11ac . Kuziva kuti ivo vakasiyana kunonyanya kukosha kana uchitenga router itsva kana kubatanidza zvishandiso zvitsva kumusangano chaiwo wekare unogona kunge usingatsigire tambo itsva.
Cherechedza: teknolojia yehupfumi ye 802.11a haifaniri kunge yakavhiringidzika ne 802.11ac, yakawanda zvikuru uye yakashambadza.
802.11a Nhoroondo
Izwi re 802.11a rakagamuchirwa muna 1999. Panguva iyoyo, imwe chete yehutaneti hweWi-Fi yakagadzirirwa pamusika waiva 802.11b . Iyo yepakutanga 802.11 haina kuwana kupararira kwakapararira pamusana pekukura kwayo kunonoka.
802.11a nemimwe mitemo yakanga isingabvumirane, zvinoreva kuti madivigisi 802.11a aisagona kutaurirana nemamwe marudzi, uye pamwe chete.
Iro 802.11a Wi-Fi network inotsigira bandwidth yakakura ye 54 Mbps , zvishoma nezvishoma kupfuura 11 Mbps ye 802.11b uye zvinotendwa neiyo 802.11g yaizotanga kupa makore mashoma gare gare. Kuitwa kwe 802.11a kwakaita kuti ive teknolojia inonakidza, asi kubudirira iyo yehutano inoshandiswa kushandiswa kushandisa mari inodhura.
802.11a yakagamuchira kubvumirwa mumakambani emakambani munzvimbo iyo mari yaisanyanya kudarika. Zvichakadaro, 802.11b uye mapepa ekutanga mumhuri yakaputika mukuzivikanwa panguva imwecheteyo.
802.11b uye ipapo 802.11g (802.11b / g) makambani akadzora mhizha mumakore mashomanana. Vamwe vanogadzirisa zvivakwa zvakagadziriswa neA uye G mazai akabatanidzwa kuitira kuti vakwanise kutsigira zviyero kune izvo zvinonzi a / b / g mitanho, kunyange zvazvo izvi zvisingasviki sezvishoma Vasati vashandisi vashanduri vaivepo.
Pakupedzisira, 802.11a Wi-Fi yakabviswa mumusika nekuda kwekutsvaga kusina mitambo.
802.11a uye kusina mifananidzo kusina mhepo
US hurumende yevatongi muma1980 yakavhura zvitatu zvakasiyana-siyana zvematare ehurumende zvinoshandiswa nevanhu - 900 MHz (0.9 GHz), 2.4 GHz, uye 5.8 GHz (dzimwe nguva inonzi 5 GHz). 900 MHz yakaratidza kuti yakanyanya kuderera kuti ive yakakosha pakutsvaga deta, kunyange zvazvo mafoni asina cord asina kushandisa zvikuru.
802.11a inotumira masayire eredhiyo asina kupararira mumatare e 5.8 GHz frequency range. Iri bhenji rakarongedzerwa muUnited States uye nyika dzakawanda kwenguva refu, zvinoreva kuti 802.11a Wi-Fi network dzisina kukwanisa kupikisana nechitinha chekupindira kubva kune mamwe marudzi emafaira ekutumira.
Mitambo 802.11b inoshandiswa maitiro akawandisa mune zvisingatongotarisirwi 2.4 GHz mararamiro uye ainyanya kunetseka neredhiyo kubva kune mamwe majaira.
Matambudziko Ane 802.11a Wi-Fi Networks
Kunyange zvazvo iyo inobatsira kuvandudza mitambo yehutano uye kuderedza kupindira, chiratidzo chema 802.11a chakanga chisina kushandiswa nekushandiswa kwema 5 GHz frequencies. An 802.11a access point transmitter inogona kuvhara pasi pechina-yechina nzvimbo inofananidzwa 802.11b / g unit.
Brick masvingo nezvimwe zvinokanganisa zvinoshandisa 802.11a mitambo dzisina kushandiswa kune yakawanda kudarika zvavanofananidza 802.11b / g mitambo.