Ukuba wakha wajonga ifowuni yakho, uzibuza ukuba kutheni unebha enye ngomzuzu omnye kwaye une-3 ngomzuzu olandelayo—okanye kutheni iifowuni zakho zicinywa nokuba kuthiwa unenkonzo—mhlawumbi ukhe wadibana neli gama.“dBm” ngaxa lithile. Ndichithe iminyaka eli-14 ndilungisa iingxaki zesignali zeselula emakhaya, kwiiofisi, nakwiindawo zasemaphandleni ezikude, kwayeNdingakuxelela: i-dBm yikhowudi eyimfihlo yokuqonda ukuba isignali yakho yeseli inamandla kangakanani (okanye ibuthathaka kangakanani). Kwaye eyona nto ingcono?IAyinzima kangako njengoko ivakala—mandiyichaze ngokungathi sincokola ngekomityi yekofu.
Okokuqala, masicacise into enye: i-dBm imele “ii-decibels xa kuthelekiswa ne-milliwatt enye.” Ndiyazi, oko kuvakala ngathi yi-jargon yetekhnoloji, kodwa konke okufuneka ukukhumbule yile:I-dBm yiyunithi elinganisa ukuba uqhagamshelo lwefowuni yakho kwinqaba yeselfowuni luqine kangakananiNgokungafaniyo namanani amaninzi owaqhelileyo—apho inkulu ingcono—i-dBm isebenza ngasemva. Okukhona inani lisondela ku-0, kokukhona isignali yakho iqina ngakumbi. Okukhona i-negative isiya iba buthathaka. Leyo yimpazamo yokuqala abantu abaninzi abayenzayo: babona inani elifana ne--80 baze bacinge ukuba libi kune--60, kodwa eneneni lichasene noko.
Masenze oku kube yinyani ngamanani ehlabathi lokwenyani—lawo uza kuwabona kwifowuni yakho. Ukuba i-dBm yakho imalunga ne -50 ukuya kwi -70, ulungile. Loo nto yimigca epheleleyo, iifowuni ezicacileyo, kunye nedatha ekhawulezayo—akukho buffering, akukho zingcingo eziwisiweyo, uqhagamshelo olugudileyo. Oku kuya kufumaneka ukuba ume ecaleni kwenqaba yeselfowuni, okanye kwindawo evulekileyo engenazithintelo.
Ngoku, ukuba i-dBm yakho iphakathi kwe--70 kunye ne--90, oko kuselungile—uza kuba neebha ezi-2-3, kwaye uninzi lweefowuni kunye neeapps ziya kusebenza kakuhle. Usenokubona ukwehla kancinci kwedatha ngamanye amaxesha, ingakumbi kwiindawo ezixakekileyo, kodwa akukho nto ibalulekileyo. Eli ligunya lesignali eliqhelekileyo kumakhaya amaninzi nakwiiofisi ezingekude kakhulu kwinqaba.
Ingxaki iqala xa ufikelela kwi -90 ukuya kwi -110 dBm. Loo nto yi-1 bar (okanye ngamanye amaxesha "akukho nkonzo"), kwaye uza kuqala ukuba neengxaki: iifowuni ziyayeka ukuncokola, imiyalezo ithatha ixesha elide ukuthunyelwa, kwaye ukusasazwa kweendaba akunakwenzeka. Oku kuqhelekile kwiindawo ezingaphantsi komhlaba, izakhiwo ezineendonga ezixineneyo, okanye kwiindawo ezikude neenqaba zeselfowuni—njengezindlu zasemaphandleni okanye ngaphakathi kwiiofisi ezinkulu.
Kwaye ukuba i-dBm yakho ingaphantsi kwe--110? Loo ndawo ayisebenzi. Ifowuni yakho isenokuba nzima ukuqhagamshela, kwaye nokuba iyasebenza, isignali ibuthathaka kangangokuba ayisebenzi. Ndiyibona le nto rhoqo kwiigaraji zokupaka ezingaphantsi komhlaba, kwiitonela, okanye emakhaya ajikelezwe yimithi emide okanye iintaba—iindawo apho isignali ingenakungena lula khona.
Usenokuba uzibuza: ndingayijonga njani i-dBm yam? Kulula, kwaye awudingi zixhobo zintle. Kwi-iPhone, ungasebenzisa iField Test Mode (cofa nje u-*3001#12345#* uze ucofe u-“LTE” emva koko ucofe u-“Serving Cell Meas”) ukuze ubone i-dBm yakho echanekileyo. Kwi-Android, uninzi lweefowuni lunokhetho lwe-"Signal Strength" kwi-app yeSettings, okanye ungenza njalokhuphela usetyenziso lwasimahla olufana neCellularZ ukuze ufumane ukufundwa okucacileyo.Wakuba uyazi i-dBm yakho, uya kwazi kakuhle ukuba isignali yakho inamandla kangakanani—kwaye nokuba kufuneka wenze into ngayo.
Nantsi into endiyixelela bonke abathengi bam: akufuneki uphile ngesignali ebuthathaka. Ukuba i-dBm yakho ihlala ingaphantsi kwe--90, iisixhasi sesignali yenethiwekhi yeselfowuni inokunceda. Itsala loo signali ye-dBm ebuthathaka nengalunganga evela ngaphandle, iyandise, ize iyithumele ngaphakathi kwindawo yakho—ijika i--100 dBm ibe yi--70 okanye ngaphezulu, ukuze ube nenkonzo ethembekileyo kwakhona, wonge imali yakho ngento esombulula ingxaki ngokwenene.
Ndibone abantu abaninzi kakhulu bethenga ii-boosters abangazidingiyo, kuba nje becinga ukuba “isignali engaphezulu ingcono.” Kodwa i-dBm isifundisa ukuba imalunga nokulinganisela—udinga nje isignali eyaneleyo ukuze umsebenzi ugqitywe. Eyona nto ibalulekileyo kukwazi amanani akho, ukuze ukwazi ukwenza isigqibo esinolwazi.
Ukuba usadidekile malunga nokufunda kwakho i-dBm, okanye awuqinisekanga ukuba isixhobo sokunyusa isignali sikulungele na, ungathandabuzi ukunxibelelana nathi. Ndingakuvuyela ukukubonisa indlela yokujonga isignali yakho, ukucacisa ukuba ithetha ukuthini amanani akho, kunye nokukunceda ufumaneisisombululo esilula malunga nokugubungela isignalioko kusebenza kwindawo yakho. Akukho ntetho ingaqhelekanga, akukho ntetho ithethwayo—licebiso elinyanisekileyo nje elivela kumntu obelungisa iingxaki zesiginali kangangeminyaka engaphezu kweshumi.
Ixesha leposi: Epreli-15-2026