Uyini-amplifier ngoba 3G imodemu

msindo isibonakaliso 3G-imodemu lusenza hhayi kakhulu kuphela ukwandisa ngejubane inethiwekhi imithombo, kodwa futhi uhlinzeke isignali uzinze ngokwengeziwe. Kwesinye isikhathi yokugcina kubaluleke kakhulu. Kunzima phikisana yokuthi kuba lula ukusebenza kwi-Inthanethi, okuyinto, nakuba awusebenzi ukunikeza ukufinyelela liphezulu kakhulu ijubane, kodwa akaphelelwa isignali ye nesiteshi.

Okungcono kakhulu, yebo, ngaphambi kokusebenzisa amandla ngenxa imodemu, kuhle ukuba anqume ukuthi yikuphi ngempela kubangelwa lizinga leliphansi imishini inethiwekhi. Lokhu ozolanda isixazululo olinganiselayo ezokwenza ngendlela elilungile ukuze anqobe le nkinga. Nokho, ngokuvamile incazelo eqondile ezifana akwenzeki ngaso sonke isikhathi, ngakho amplifier 3G-imodemu, njengoba umthetho, yidivayisi ezibanzi-spectrum - uhlobo ebucayini.

Kungani-Inthanethi ayisebenzi

Ukuqinisekisa amazwi akhe, ukunikeza uhlu izimbangela eziyinhloko ezithinta izinga imodemu operation engenantambo:

- Idivayisi kuthola kungekho eqondile kubonakala kusukela into impumuzo noma izakhiwo isignali. Banikezwe co-ukumuncwa futhi ukuhlanekezela, esimweni esinjalo ukufeza ngejubane uxhumano ezinzile akunakwenzeka njalo. Ngokwengxenye ukuxazulula le nkinga engakwazi ukusetshenziswa kokuhlela imodemu.

- imishini base station (umbhoshongo opharetha) isezingeni elikhulu kakhulu ibanga ukusuka indawo eyamukelayo. Ngakho kukhona ukwehla yemvelo amandla ayo ngenxa izakhiwo emkhathini. Kulesi simo amandla imodemu nge kahle eyanele, ongaxazulula ngokuphelele zonke izinkinga.

- eliseduze base esiteshini ngesikhathi esifanayo akhonzwa amakhasimende amaningi kakhulu, ngakho imithombo kwakhona obanele ukuba kunikezwe isevisi asezingeni elifanele.

Solutions ukuze uthuthukise ukukhulumisana

Naphezu kobuningi iziphakamiso ku nokwenza kahle isignali reception base station, bonke ngothi lwabo zingahlukaniswa ngamaqembu amahlanu:

- Ukusetshenziswa enothi lwangaphandle. Kudinga ukuba ukuklanywa imodemu esetshenzisiwe Kusolwa antenna adaptha uxhumano - pigtail okuthiwa. Kodwa-ke, umuntu ongakwazi nokunamathisela ngomthofu ngokunembile wesifunda chip ingakwazi uxhumeke idivayisi isixhumi, ukubukeka liwohloka.

- Isicelo amplifier modem design akhethekile, Akudingi izixhumi (noncontact).

- Ukubekwa zedivayisi ebhokisini uphawu bawuthwale ophahleni noma olungaphambili lwesonto.

- nokunamathisela ngomthofu imibuso eyakha lo wesifunda kudivayisi.

- Yamandla uhlobo esebenzayo ye imodemu.

I izixazululo okungenani ngempumelelo - yesibili neyesine. Ukusetshenziswa ezivame kakhulu i-antenna yangaphandle nge pigtail. Izindleko imishini eyengeziwe kuyinto iphansana, kanti ukufakwa futhi ukulungisa okwengeziwe kungenziwa kalula eyenziwe ngokwakho. Banikezwe ezahlukene antenna uzuza, kungenzeka ukuba ukhethe isixazululo esingcono kakhulu, okubonisa imiphumela emihle esimweni ngasinye.

Kodwa endaweni yokugcina kungongajwayelekile kwabaningi, kodwa isimiso esiqukethwe amplifier asebenzayo, kuyaziwa isikhathi eside, iye yasetshenziswa ngempumelelo kulezo zimboni. Isikimu okulandelayo: phezu olungaphambili lwesonto eziphoqelelwe enothi lwangaphandle okuyinto ngamakhasimende ngokuvumelana nesiqondiso nesiteshi; nge high imvamisa ikhebula nge impedance sici isignali 50 ohms ihlinzekwa kudivayisi amplifier - 3G-repeater (repeater). busebenze layo langaphakathi ukwandisa ukushuba isignali antenna uthathiwe ngocansi phezu-USB cable noma imvamisa radio kukhompyutha. I yokuntula kukhona umonakalo omkhulu isinqumo esinjalo, cishe izikhathi ezingu-4 intengo noma yiziphi izinketho ezisele.