Ezingxenyeni zokuxhumana ezingenantambo , imishini yama-double-band iyakwazi ukudlulisela kunoma yiziphi izigaba ezimbili ezijwayelekile zezimvamisa. Amanethiwekhi asekhaya anamuhla we-Wi-Fi afaka ama- router aphezulu-bandband broadband asekela ama-2.4 GHz neziteshi ezingu-5 GHz.
Iziteshi zokuxhumana zenethiwekhi yokuqala zokuqala ekhaya ezikhiqizwa ngesikhathi sekupheleni kweminyaka yama-1990 kanye nasekuqaleni kwawo-2000 ziqukethe umsakazo owodwa we- 802.11b Wi-Fi osebenza ku-2.4 GHz band. Ngesikhathi esifanayo, inani elikhulu lamanethiwekhi webhizinisi lisekelwa ngamadivayisi angu- 802.11a (5 GHz). Ama-router wokuqala we-Wi-Fi wokuqala ahlanganiswa ukuze asekele amanethiwekhi axubekile anamakhasimende womabili angu-802.11a no-802.11b.
Kusukela ngama- 802.11n , amazinga we-Wi-Fi aqala ukufaka ukuxhaswa okubili kokubili-band 2.4 GHz no-5 GHz njengesici esimisiwe.
Izinzuzo ze-Dual Band Wireless Networking
Ngokuhlinzeka ngezixhumanisi ezingenazintambo ezingenazintambo zebhande ngalinye, ama-double-band 802.11n nama- 802.11ac routers anikezela ukuguquguquka okukhulu ekusekeni inethiwekhi yendlu. Amanye amadivaysi asekhaya adinga ukuhambisana kwefa kanye nokufinyeleleka okukhulu kwesignali okunikezwa yi-2.4 GHz kanti abanye bangase badinge umkhawulokudonsa owengeziwe wenethiwekhi owahlinzeka ngu- 5 GHz.
Ama-red-band routers anikezela uxhumo olwenzelwe izidingo zomuntu ngamunye. Amanethiwekhi amaningi asekhaya we-Wi-Fi ahlupheka ngokuphazamiseka okungenazintambo ngenxa yokusabalalisa kwamagajethi abathengi angu-2.4 GHz, njengama-oven microwave namafoni angenantambo, konke okusebenza kuphela kumashaneli angama-3 angafani. Ikhono lokusebenzisa i-5 GHz kwi-roual-band router iyakwazi ukugwema lezi zinkinga ngoba kuneziteshi ezingu-23 ezingenakunyakaziswa ezingasetshenziswa.
Ama-router aphindwe kabili futhi afaka ama- Multi-In Multiple-Out (MIMO) ukulungiselelwa komsakazo. Ukuhlanganiswa kwamarediyo amaningi kwiqembu elilodwa kanye nokusekelwa kwe-double-band kunikeza ukusebenza okuphezulu kakhulu kwezinethiwekhi zenethiwekhi kunalokho okushiwo yi-router single band.
Izibonelo zeDual Band Wireless Devices
Ama-routers ambalwa ahlinzeki ngamasevisi amabili angenazintambo ngaphandle kwama-adaptha wenethiwekhi ye-Wi-Fi namafoni.
Ama-Routers a-Dual Band angenantambo
I-TP-LINK Archer C7 AC1750 I-Dual Band Wireless AC Gigabit Router inezingamamitha angu-450 ku-2.4 GHz kanye no-1300 Mbps ku-5GHz, kanye nokulawula kwe-bandwidth okusekelwe e-IP ukuze ukwazi ukuqapha ukuhamba komkhawulo kuwo wonke amadivayisi axhunyiwe ku-router yakho.
I-NETGEAR N750 Dual Band I-Wi-Fi Gigabit Router yimizi emikhulu kuya emikhulu futhi iza ne-app genie ukuze ukwazi ukugcina amathebhu kunethiwekhi yakho bese uthole usizo lokuxazulula ukuxazulula uma kunesidingo.
Ama-adaptha we-Dual Band we-Wi-Fi
Ama-adaptha wenethiwekhi ye-Wi-Fi yama-Double-band aqukethe ama-radios angama-2.4 GHz nama-5 GHz angenazintambo ezifana namabhurotha amabili.
Ezinsukwini zokuqala ze-Wi-Fi, ezinye izixhumo ze-Wi-Fi ze-laptop zisekelwa ama-radios angu-802.11a no-802.11b / g ukuze umuntu angakwazi ukuxhuma ikhompyutha yakhe kumanethiwekhi ebhizinisi phakathi kwamanethiwekhi omsebenzi namanethiwekhi ngobusuku namaviki. Ama-adapter amasha angu-802.11n kanye no-802.11ac angalungiswa futhi ukusebenzisa i-band (kodwa hhayi kokubili ngesikhathi esisodwa).
Isibonelo esisodwa se-double band gigabit i-Wi-Fi inethiwekhi yenethiwekhi i-NETGEAR AC1200 WiFi USB Adapter.
Amakholi weDual Band
Ngokufana nemishini yokuxhumana ye-double-band wireless, amanye amafoni angasebenzisa futhi ama-bands amabili noma ngaphezulu okuxhumana kwamaseli ahlukene ne-Wi-Fi. Amakholi we-double-band akha ekuqaleni ukusekela ama-3G GPRS noma amasevisi wedatha we-EDGE ku-0.85 GHz, 0.9 GHz noma 1.9 GHz frequency frequency.
Amafoni ngezinye izikhathi asekela ama-tri-band (amathathu) noma ama-quad-band (amane) amabanga wendiza yokudlulisa amaselula ukuze kukhuliswe ukuhambisana nezinhlobo ezahlukene zenethiwekhi yefoni, eziwusizo ngenkathi zihamba noma zihamba.
I-modem yeselula ishintshanisa phakathi kwamaqembu ahlukene kodwa ayisekeli ukuxhumeka kokubili kweqembu okukanye ngesikhathi esisodwa.