Uma uke wabuka ifoni yakho, uzibuza ukuthi kungani unebha eyodwa ngomzuzu owodwa bese kuba yi-3 ngokulandelayo—noma ukuthi kungani izingcingo zakho ziwa ngisho noma kuthiwa unesevisi—kungenzeka ukuthi uke wahlangana naleli gama.“dBm” ngesinye isikhathi. Ngichithe iminyaka eyi-14 ngilungisa izinkinga zesignali yeselula emakhaya, emahhovisi, ngisho nasezindaweni zasemakhaya ezikude, futhiNgingakutshela: i-dBm ikhodi eyimfihlo yokuqonda ukuthi isignali yakho yeselula inamandla kangakanani (noma ibuthakathaka). Futhi ingxenye engcono kakhulu?IAkuyona into eyinkimbinkimbi njengoba kuzwakala—ake ngikuchaze njengokungathi sixoxa ngenkomishi yekhofi.
Okokuqala, ake siqonde into eyodwa: i-dBm imele “ama-decibel uma kuqhathaniswa ne-milliwatt eyodwa.” Ngiyazi, lokho kuzwakala njengolimi lobuchwepheshe, kodwa okudingeka ukukhumbule yilokhu:I-dBm iyiyunithi elinganisa ukuthi uxhumano lwefoni yakho nombhoshongo weselula luqine kangakananiNgokungafani nezinombolo eziningi ozijwayele—lapho okukhulu kungcono khona—i-dBm isebenza emuva. Lapho inombolo isondela ku-0, isignali yakho iqina kakhulu. Lapho iba negative kakhulu, iba buthakathaka kakhulu. Lelo yiphutha lokuqala abantu abaningi abalenzayo: babona inombolo efana no--80 bese becabanga ukuthi imbi kakhulu kuno--60, kodwa empeleni kuphambene nalokho.
Ake senze lokhu kube ngokoqobo ngezinombolo zangempela—lezo ozozibona ngempela efonini yakho. Uma i-dBm yakho icishe ibe yi--50 kuya ku--70, usendaweni efanele. Lokho kuyizibha ezigcwele, izingcingo ezicacile, kanye nedatha esheshayo—akukho kubhafa, akukho izingcingo eziphonswayo, ukuxhumana okubushelelezi kuphela. Yilokhu ozokuthola uma ume eduze kombhoshongo weseli, noma endaweni evulekile engenazithiyo.
Manje, uma i-dBm yakho iphakathi kuka--70 no--90, lokho kusese kuhle—uzoba namabha angu-2-3, futhi izingcingo eziningi nezinhlelo zokusebenza zizosebenza kahle. Ungase uqaphele ukwehla okuncane kwedatha ngezikhathi ezithile, ikakhulukazi ezindaweni ezimatasa, kodwa akukho okufanele ukhathazeke ngakho. Lokhu kuyisignali yamandla ejwayelekile emakhaya amaningi nasemahhovisi angekude kakhulu nombhoshongo.
Inkinga iqala uma ushaya u--90 kuya ku--110 dBm. Lokho kuyibha eli-1 (noma ngisho "akukho sevisi" ngezinye izikhathi), futhi uzoqala ukuba nezinkinga: izingcingo ziyayeka ukuxoxa phakathi, imiyalezo ithatha isikhathi eside ukuthunyelwa, futhi ukusakaza akunakwenzeka. Lokhu kuvamile ezindlini ezingaphansi komhlaba, ezakhiweni ezinezindonga ezibanzi, noma ezindaweni ezikude nemibhoshongo yeseli—njengezindlu zasemakhaya noma ngaphakathi emahhovisi amakhulu.
Futhi uma i-dBm yakho ingu-110 noma ngaphansi? Leyo indawo efile. Ifoni yakho ingase ibe nenkinga yokuxhuma nhlobo, futhi noma ngabe ixhumeka, isignali ibuthakathaka kakhulu kangangokuthi ayisizi ngalutho. Ngikubona lokhu ngaso sonke isikhathi emagaraji okupaka angaphansi komhlaba, emihubheni, noma emakhaya azungezwe izihlahla ezinde noma izintaba—izindawo lapho isignali ingenakungena kalula khona.
Ungase uzibuze: ngiyihlola kanjani i-dBm yami? Kulula, futhi awudingi amathuluzi amahle. Ku-iPhone, ungasebenzisa i-Field Test Mode (vele ushayele u-*3001#12345#* bese uthinta u-“LTE” bese uthinta u-“Serving Cell Meas”) ukuze ubone i-dBm yakho eqondile. Ku-Android, amafoni amaningi anenketho ethi “Amandla Esiginali” kuhlelo lokusebenza lwezilungiselelo, noma ungakwazilanda uhlelo lokusebenza lwamahhala olufana ne-CellularZ ukuze uthole ukufundwa okucacile.Uma usuyazi i-dBm yakho, uzokwazi kahle ukuthi isignali yakho iqine kangakanani—nokuthi ngabe udinga ukwenza okuthile ngayo.
Nansi into engiyitshela wonke amakhasimende ami: akudingeki uphile ngesignali ebuthakathaka. Uma i-dBm yakho ingaphansi kuka--90 njalo,isikhuthazi sesignali yenethiwekhi yeselula ingasiza. Idonsa leso signali se-dBm esibuthakathaka, esingesihle sivela ngaphandle, siyikhulise, futhi siyithumele ngaphakathi kwesikhala sakho—iguqula i--100 dBm ibe yi--70 noma ngaphezulu, ukuze ube nesevisi ethembekile futhi, wonge imali yakho ngento exazulula inkinga ngempela.
Ngibone abantu abaningi kakhulu bethenga ama-booster abangawadingi, ngoba nje becabanga ukuthi “isignali eyengeziwe ingcono.” Kodwa i-dBm isifundisa ukuthi kumayelana nokulinganisela—udinga nje isignali eyanele ukuze uqede umsebenzi. Isihluthulelo ukwazi izinombolo zakho, ukuze ukwazi ukwenza isinqumo esinolwazi.
Uma usadidekile ngokufunda kwakho i-dBm, noma ungaqiniseki ukuthi i-signal booster ikufanele yini, ungangabazi ukuxhumana nawe. Ngiyajabula ukukubonisa ukuthi ngihlola kanjani isignali yakho, ngichaze ukuthi izinombolo zakho zisho ukuthini, futhi ngikusize utholeIsixazululo esilula mayelana nokumbozwa kwesiginalilokho kusebenza endaweni yakho. Akukho magama alula, akukho zindlela zokuthengisa—iseluleko esiqotho esivela kumuntu obelokhu elungisa izinkinga zesiginali iminyaka engaphezu kweyishumi.
Isikhathi sokuthunyelwe: Ephreli-15-2026