Emhlabeni wanamuhla oxhumene kakhulu, ukuxhumana okungenazintambo okushelelayo akuseyona into yokunethezeka kodwa kuyinto eyisisekelo elindelekile emabhizinisini nakubathengi ngokufanayo. I-DAS Antenna, noma i-Distributed Antenna System, iyinethiwekhi yamaphoyinti e-antenna ahlukaniswe ngokwesikhala axhunywe kumthombo owodwa oletha ukuxhumana okuthembekile ngaphandle kwezinkinga ezakhiweni ezinkulu nasemakhampasi. Lokhu kwakhiwa kusebenza ngokusabalalisa amasignali e-radio frequency avela kumthombo omaphakathi ukuya kuma-antenna amancane amaningi abekwe kuyo yonke indawo yesakhiwo, kuqinisekiswa ukuthi yonke ikona ithola ukuxhumana okuqinile nokungaguquki. Ngokunqoba izithiyo ezibonakalayo zikakhonkolo, insimbi, nengilazi ezivame ukwenza buthaka amasignali eselula angaphandle, i-DAS Antenna ekhandwe kahle igcina izinsizakalo zezwi, idatha, ne-IoT zisebenza ngokuthembekile ngaphakathi endlini. Ukubaluleka kwalezi zinhlelo kukhule kakhulu ngokuqaliswa kwamanethiwekhi esizukulwane sesihlanu, ancike kumafrikhwensi aphezulu avame ukuba sengozini yokuncipha nokuvinjelwa. Njengoba izinhlangano ziqhubeka nokuncika ekuxhumaneni kweselula emisebenzini yazo yansuku zonke, indima yezinhlelo ze-antenna ezisabalalisiwe ezisebenza kahle kakhulu iba ibaluleke kakhulu empumelelweni yebhizinisi iyonke.

Isidingo sokuqinisekisa ukumboza okuqinile kwe-DAS ngaphakathi endlini asikaze sibe siphuthuma kangaka, njengoba izinto zokwakha zanamuhla zivame ukuvimba noma zinciphise kakhulu amasignali ahamba emibhoshongweni emikhulu yangaphandle. Noma ngabe abasebenzi badlala ividiyo enekhwalithi ephezulu ngesikhathi semihlangano noma amakhasimende esebenzisa izinhlelo zokukhokha ngomakhalekhukhwini ematafuleni ezitolo, isignali engenamandla ithinta ngqo ukukhiqiza, ukwaneliseka, kanye nemali engenayo. Ukusetshenziswa kwe-Distributed Antenna System (DAS) 5G kumelela utshalomali olukhulu kubanikazi bezakhiwo nabaqhubi bezokuxhumana, yingakho ukukhetha umlingani onobuchwepheshe ofanele kubalulekile ekukhuliseni lolo tshalomali esikhathini eside. Uhlelo lwe-antenna yedijithali lukhulisa ukumboza ngokuguqula nokusabalalisa amasignali ngokwedijithali, lunikeza ukuguquguquka okukhulu, ukukala, nokusebenza kahle uma kuqhathaniswa nezindlela zendabuko ze-analog. Ukuqonda ukuthi lezi zinhlelo zisebenza kanjani, yiziphi izingxenye ezibaluleke kakhulu, nokuthi yimuphi umkhiqizi ohlinzeka ngokusebenza okuthembekile kakhulu, isinyathelo sokuqala ekwakheni ingqalasizinda yezokuxhumana ebheke esikhathini esizayo. Lo mhlahlandlela obanzi uhlola ukuthi i-Shenzhen Narwhal Electronic Technology Co., Ltd. ihlinzeka kanjani ngezixazululo ze-DAS antenna ezisezingeni eliphezulu ezihlangabezana nezidingo eziqinile zamabhizinisi anamuhla emhlabeni wonke.

Shenzhen Narwhal Electronic Technology Co., Ltd. isungule ukuzinza njengomkhiqizi othembekile wama-antenna okuxhumana kanye nemikhiqizo ye-RF connectivity emkhakheni womhlaba wonke. Ngeminyaka eminingi yokuzibandakanya nolwazi olujulile kwezobunjiniyela be-radio frequency kanye nokukhiqizwa kwama-antenna, inkampani yethu ithuthukise ukuqonda okujulile kwezinselele zobuchwepheshe ezibhekana nabaqhubi benethiwekhi, abahlanganisi bezinhlelo, kanye namakhasimende ezinkampani ngokufanayo. Indawo yethu yokukhiqiza esezingeni eliphezulu ifakwe amathuluzi athuthukile okuhlola nokulinganisa, okuqinisekisa ukuthi wonke ama-antenna aphuma emgqeni wethu wokukhiqiza ahlangabezana nemigomo eqinile yokusebenza nokwethembeka. Sikhethekile ephothifoliyo yemikhiqizo ehlukahlukene ehlanganisa i-TV, umsakazo, i-mobile, i-satellite, kanye nezinhlelo eziyinkimbinkimbi ze-DAS antenna eziklanyelwe izindawo zangaphakathi eziyinselele. Inhloso yethu ilula kodwa inamandla: ukuhlinzeka ngezixazululo zama-antenna ezithembekile, ezintsha, nezonga izindleko ezinika amandla amabhizinisi nemiphakathi ukuthi ihlale ixhumekile ngaso sonke isikhathi. Ukuze uthole ukubuka okuningiliziwe komlando wethu, amakhono ethu, kanye nesiko lethu lobunjiniyela, izivakashi ziyakhuthazwa ukuthi zihlole iwebhusayithi yethu.mayelana ikhasi ukuze uqonde izindinganiso eziqhubela amaqembu ethu azinikele.

Ikhwalithi iyisisekelo sakho konke esikwenzayo e-Shenzhen Narwhal, yingakho sinamathela ezindinganisweni eziqinile zamazwe ngamazwe futhi sinikeze izitifiketi eziqinisekisa izinqubo zethu zokukhiqiza nokuphepha komkhiqizo. Kusukela ekukhetheni izinto zokusetshenziswa kuya ekuhlanganiseni kokugcina nokupakishwa, isigaba ngasinye sokukhiqiza siqashwa ngokucophelela futhi sibhalwe phansi ukuze kuqinisekiswe ukungaguquguquki kulo lonke uhla lwethu lwemikhiqizo. Ukuzibophezela kwethu ekhwalithi kudlulela ngalé kwesizinda sokukhiqiza, njengoba siqhubeka sitshala imali ocwaningweni nasekuthuthukisweni ukuze sihlale sihamba phambili kwezobuchwepheshe ezisafufusa njenge-5G, i-IoT, nezinhlelo zokwakha ezihlakaniphile. Siyaqonda ukuthi uhlelo lwe-antenna olusabalalisiwe luhle kuphela ngokwezinga lengxenye yalo ebuthakathaka, ngakho sakha wonke ama-connector, izintambo, nezinto ezisakazayo ngokunemba nangokunakekela. Lokhu kuzinikela okungapheliyo kusenze sazuza idumela lokuba nguzakwethu othembekile kuma-opereyitha wezokuxhumana nabahlanganisi bezinhlelo emazwenikazi amaningi. Ngokukhetha i-Shenzhen Narwhal, amakhasimende athola ukufinyelela kumkhiqizi ophatha yonke iphrojekthi ngezinga elifanayo lobuchwepheshe, ukuziphendulela kobuchwepheshe, nokuzibophezela kwesikhathi eside.

Umkhiqizo wezintambo ze-DAS we-Narwhal unikeza ukukhethwa okuphelele kwamamodeli aklanyelwe ukubhekana nezidingo ezahlukahlukene zokumboza, izakhiwo zezakhiwo, kanye nezimo zokufaka. Iphothifoliyo yethu ihlanganisa izintambo ezisakaza amasignali ngokulinganayo kuzo zonke izinhlangothi, okwenza zilungele izindawo ezivulekile njengamalobhini, ama-atrium, namahholo emihlangano lapho ukumboza kufanele kufane. Kwezinye izinhlelo eziqondisiwe, izintambo zethu eziqondisayo namaphaneli zigxilisa amandla ezindaweni ezithile, okubaluleke kakhulu emaphaseji amade, izakhiwo zamahhovisi ahlukanisiwe, nezindawo zokuthengisa ezinophahla oluphakeme. Imodeli ngayinye ye-DAS antenna itholakala ngezindlela eziningi zokumisa ukusekela izakhiwo ezahlukahlukene zenethiwekhi nengqalasizinda yezokuxhumana ekhona ngokushintsha okuncane. Noma ngabe iphrojekthi idinga iyunithi encane efakwa ophahleni noma iphaneli elinenzuzo ephezulu elenzelwe ngaphandle, ikhathalogi yethu inikeza izixazululo ezilinganisa ukusebenza, ubuhle, nokufakwa kalula. Abathengi abanentshisekelo bangahlola uhla olugcwele lwekhono lethu lokuklama nokukhiqiza ngokuvakashelaImikhiqizo ikhasi lemininingwane eningiliziwe nokuhleleka kokuthenga.

Izintini zethu ze-DAS ziklanyelwe ukusekela uhla olubanzi lwamabhendi efrikhwensi, kuhlanganise noma yini kusukela kumanethiwekhi amadala e-2G ne-3G kuya ku-4G LTE yesimanje kanye nokusetshenziswa kwakamuva kwe-5G. Leli khono lamabhendi amaningi liqinisekisa ukuthi uhlelo olulodwa lwe-antenna olusabalalisiwe lungasebenza kanyekanye kuma-opharetha amaningi futhi lusekele ubuchwepheshe obuhlukahlukene bezintambo, likhulise imbuyiselo kuyo yonke imali etshalwe engqalasizinda. I-antenna ngayinye ilungiswa ngokucophelela ngesikhathi sokukhiqizwa ukuze ilethe ukuzuza okuzinzile nokulahlekelwa okuphansi kokubuyisela kulo lonke uhla lwayo lokusebenza lwefrikhwensi, iqinisekise ukusakazeka kwesignali okuphumelelayo nokungamoshi amandla. Emikhiqizweni yesizukulwane sesihlanu, sinikeza amamodeli akhethekile e-distributed antenna system 5g ahlangabezana nomkhawulomkhulu we-bandwidth, ukumodlela okuminyene, kanye nezidingo eziyinkimbinkimbi ze-beamforming zezinga elisha lomsakazo. Siyaqonda nokuthi isakhiwo ngasinye sihlukile, ngakho sinikeza izinketho eziqinile zokwenza ngendlela oyifisayo ukuze silungise impendulo yefrikhwensi, izinhlobo zezixhumi, ubude bezintambo, izinto zokufaka, kanye nemibala yezivalo ukuze kuhlangatshezwane nezidingo ezithile zokusetshenziswa. Lokhu kuvumelana nezimo kuvumela abaklami bezinhlelo ukuthi balungise kahle i-indoor das architecture yabo ukuze bathole ukusebenza okuphelele ngaphandle kokudela izindleko zephrojekthi, isheduli, noma ukuhlanganiswa kobuhle.

Ukusebenza kuyisici esiyinhloko sayo yonke i-antenna ye-DAS emgqeni wethu, futhi imininingwane esiyishicilelayo ikhuluma ngokwayo ezimweni eziyinselele zokusebenza emhlabeni wangempela. Ama-antenna ethu anenzuzo ephezulu (high gain) ekhuphula ngempumelelo amasignali angenayo abuthakathaka, enweba ububanzi bokusebenza futhi athuthukise ikhwalithi yesignali kuyo yonke indawo ekuhlosiwe. Okubaluleke ngokulinganayo i-Voltage Standing Wave Ratio (VSWR) yethu ephansi ehamba phambili embonini, ekhombisa ukudluliswa kwamandla okuphumelela kakhulu kusuka kumthumeli kuya ku-antenna ngaphandle kokulahlekelwa okubonakalayo okwehlisa ukusebenza kukonke. Le nhlanganisela enamandla yenzuzo ephezulu ne-VSWR ephansi ihumushela ngqo ekuxhumaneni okuqinile, okungaguquki kubasebenzisi bokugcina, noma ngabe benza izingcingo, bephequlula i-inthanethi, noma bedlulisa amafayela amakhulu edatha. Ngokuthuthukisa lezi zici eziyisisekelo, sisiza abaqhubi ukuthi banciphise inani lamaphoyinti e-antenna ye-DAS adingekayo ukumboza indawo ethile, okwehlisa kakhulu izindleko zokufaka nokugcina. Ithimba lethu lobunjiniyela liqhubeka nokuthuthukisa le miklamo ngokulingisa nokuhlola emkhakheni ukuze kuqinisekiswe ukuthi yonke i-antenna ye-Narwhal DAS idlula ezinye ezijwayelekile kunoma iyiphi indawo noma isimo sokusebenza.

Ukuqina kungenye yezimpawu ezivelele zamasistimu ethu e-DAS antenna, njengoba wonke amamodeli akhiwe ngezinto ezingagqwali futhi avalelwe ngaphakathi kwezivalo ze-IP ezivikela uthuli, umswakama, kanye namazinga okushisa ashubisa kakhulu. Lokhu kwakhiwa okuqinile kuqinisekisa ukuthembeka kwesikhathi eside ezindaweni ezinzima zangaphakathi njengezigceme zokupaka, izikhungo zezimboni, amakamu angaphansi komhlaba, kanye nokufakwa ophahleni olubhekana nesimo sezulu esiqondile. Sikhathalela kakhulu nokunciphisa ukuphazamiseka, siklamela ama-antenna ethu ngendlela enokuhlunga okunembile, ukuvikela, kanye namasu okuhlukanisa anciphisa ukuphazamiseka phakathi kwemigqa kanye nokonakala kwesignali okuvela kwezinto zikagesi eziseduze. Umphumela wukulethwa kwesignali ecacile, ezinzile ngisho nasezindaweni eziminyene zasemadolobheni lapho ukuminyana kwezinkundla zomsakazo kuyinselele eqhubekayo futhi ekhulayo. Ngale kokuhamba phambili kwezobuchwepheshe, sihlala sizibophezele ekubekeni amanani ancintisanayo, siqinisekisa ukuthi ubuchwepheshe be-DAS antenna bezinga lomhlaba bufinyeleleka emabhizinisini awo wonke amakhulu namancane noma isabelomali. Ku-Narwhal, sikholelwa ngobuqotho ukuthi ukusebenza kahle kakhulu nokufinyeleleka kwezindleko akufanele kuhlukaniswe, futhi isu lethu elisobala lamanani libonisa lo mqondo wethu oyisisekelo webhizinisi.

Ukuguquguquka kwezinhlelo zethu zamasistimu okusabalalisa izintambo (distributed antenna systems) kuzenza zibe ukukhethwa okufanele kakhulu ezinhlobonhlobo zezindawo zangaphakathi lapho ukuxhumana kwefoni okuthembekile kubaluleke kakhulu. Izakhiwo zamahhovisi zizuzisa ngokuthuthuka kokuthembeka kwezingcingo kanye nesivinini esiphezulu sedatha yamaselula, okuthuthukisa ngokuqondile umkhiqizo wabasebenzi, ukubambisana, kanye nokwaneliseka kuzo zonke izitezi namagumbi emihlangano. Izikhungo zezitolo ezinkulu nezindawo zokuthengisa zisebenzisa izixazululo ze-indoor DAS ukuze zigcine amakhasimende exhumekile ngenkathi edlula, kuthuthukiswe ukuhlanganyela ngezikhangiso zamaselula, izinsiza ezisekelwe endaweni, kanye nokwamukelwa kwezinkokhelo zedijithali. Izibhedlela nezikhungo zezempilo zincike ekuxhumaneni okuthembekile ezingxoxweni ezibalulekile phakathi kwabasebenzi bezokwelapha, amadivayisi okuqapha aselula, nokuhlela ukusabela okuphuthumayo, lapho ukwehluleka kwesignali kungaba udaba lokuphila noma ukufa. Amahhotela athuthukisa ulwazi lwezivakashi ngokuhlinzeka ukuxhumana okungenazihibe kumakamelo ezivakashi, izindawo zezingqungqulu, izindawo zokudlela, amalobhu, nezinsiza zokungcebeleka, okuholela ekubuyekezweni okuhle nasekubhukheni okuphindwayo. Lezi zibonelo ezingokoqobo zibonisa indlela isistimu yamasistimu okusabalalisa izintambo etshalwe ngobuchule eba ingxenye engabonakali kodwa ebalulekile yokusebenza kwezakhiwo zanamuhla kuyo yonke imikhakha yezohwebo.

Ukuhlanganiswa nengqalasizinda ekhona yezokuxhumana kucatshangelwa okubalulekile kunoma yikuphi ukusetshenziswa kwe-DAS, futhi izintambo ze-Narwhal ziklanyelwe ngokuqondile ukuthi zisebenze kahle nemithombo emikhulu yamasignali nezinkundla zokusabalalisa. Noma ngabe inethiwekhi yakho isekelwe ekwakhiweni kwe-passive, active, noma hybrid distributed antenna system, izintambo zethu zixhuma kalula enkabeni, kuma-fiber-optic distribution nodes, kuma-remote radio units, nakuma-bidirectional amplifiers. Sisekela ama-connector ajwayelekile ezimbonini namaphrothokholi okuxhumana, okwenza lula umsebenzi wabahlanganisi bezinhlelo futhi kunciphisa kakhulu isikhathi sokufaka nezindleko zabasebenzi. Ithimba lethu elinobuchwepheshe elinamava lingaphinde lincome ukumiswa okufanele kwezintambo ngokusekelwe kumapulani aphansi, izinto zokwakha, inani elilindelekile labasebenzisi, nezidingo zomhlinzeki wezinsiza kumaphrojekthi ngamunye. Izifundo zangempela ezivela ekusetshenzisweni kwethu ezakhiweni zamahhovisi ezentengiselwano, amakhampasi ezikhungo zemfundo, nezindawo zokungenisa izihambi zibonisa ngokuqhubekayo ukuthuthuka okulinganisekayo kwamandla esignali, ukudluliswa kwedatha, nokwaneliseka kwabasebenzisi. Lezi zindaba zempumelelo ezibhaliwe ziqinisa ukuthi kungani i-Shenzhen Narwhal isiphenduke uzakwethu wezintambo okhethwayo kumaphrojekthi adinga izixazululo zokumboza ngaphakathi ezithembekile neziqhubekayo.

Ukukhetha umkhiqizi ofanele kubaluleke njengokukhetha ubuchwepheshe obufanele be-antenna, futhi i-Shenzhen Narwhal igqama kuzo zombili lezi zici ezibalulekile ngasikhathi sinye. Indawo yethu yokukhiqiza ethuthukile kanye nethimba lethu elizinikele locwaningo nokuthuthukisa kusenza sikwazi ukusungula izinto ezintsha njalo, silethe imiklamo emisha nethuthukisiwe ye-DAS antenna emakethe ngokushesha kunezimbangi eziningi ezinkulu. Sitshala izimali ezinkulu emishinini ekhethekile yokuhlola, okuhlanganisa amagumbi angenasindi (anechoic chambers), ama-network analyzers, namagumbi ezemvelo, ukuze siqinisekise ukusebenza kwe-antenna ngaphansi kwezimo ezilawulwayo ngaphambi kokuba noma yimuphi umkhiqizo uthunyelwe kumakhasimende. Abasebenzi bethu bezobunjiniyela banikeza ukwesekwa kwezobuchwepheshe okuzinikele, besiza amakhasimende ngokukhetha i-DAS antenna, ukubonisana ngomklamo wesistimu, ukucatshangelwa kokufakwa, nokuxazulula izinkinga kuyo yonke impilo yephrojekthi. Inkonzo yangemva kokuthengisa nayo iqinile ngokulinganayo, nethimba lethu eliphendulayo lihlala litholakala ukuze linikeze isiqondiso esiqhubekayo sokunakekela, izingxenye zokushintsha, nokusekelwa komkhiqizo isikhathi eside ngemva kokulethwa kokuqala. Leli modeli elibanzi lokusekela liqinisekisa ukuthi wonke umakhasimende uthola isiqondiso sochwepheshe asidingayo ukuze afeze imiphumela ekahle kanye nenzuzo ephezulu kakhulu ekutshalweni kwengqalasizinda yakhe.

Ukufinyelela emhlabeni wonke kungenye inzuzo ebalulekile yokusebenzisana ne-Shenzhen Narwhal, njengoba sinamandla okuthutha impahla asunguliwe asekela ukuthunyelwa kwamazwe ngamazwe ngempumelelo kumakhasimende kuzo zonke izifunda ezinkulu nezindawo zesikhathi. Siqonda kahle ukuthi izikhathi zokuqedwa kwephrojekthi zivame ukuba zinzima kakhulu, yingakho silungiselele ukuhlela kwethu kokukhiqiza nezinqubo zokufeza ukuze sinikeze izikhathi zokulethwa ezisheshayo ngaphandle kokudela amazinga ekhwalithi. Ithimba lethu elinamava lijwayele ukusingatha imibhalo yokuthumela ngaphandle, ukugunyazwa kwamasiko, izidingo zokupakisha, nokuthobela imithethonqubo yezimakethe ezahlukene zamazwe ngamazwe, okwenza kube lula kakhulu inqubo yokuthenga kubathengi baphesheya kwezilwandle. Noma ngabe ungumqhubi wezokuxhumana owandisa ukusatshalaliswa kwenethiwekhi kuzwelonke noma umhlanganisi wezinhlelo ofaka ibhilidi elilodwa lezentengiselwano, ukuguquguquka kwethu kwezokukhiqiza kuhlangabezana kalula namaphrojekthi wanoma yimuphi usayizi nobunkimbinkimbi. Siyakumema ukuthi ubuyekeze intuthuko yakamuva yenkampani yethu, ukwethulwa kwemikhiqizo, nokuqonda kwemboni kwi-Izindaba ikhasi lokubona indlela esibumba ngayo ikusasa lobuchwepheshe bezimpondo. Ukuze uqonde kangcono ukuthi sisekela kanjani ingqalasizinda yokuxhumana yomhlaba wonke, i-Izixazululo ikhasi linikeza umbono obanzi ngezixazululo zethu zobuchwepheshe bezimpondo kwezethelevishini, umsakazo, umakhalekhukhwini, izimoto, kanye nezinhlelo zesathelayithi.

Ukutshala ohlelweni lwe-DAS antenna olusebenza kahle kakhulu kungenye yezinqumo ezinobuhlakani kakhulu inhlangano engayenza ukuze iqinisekise ukuxhumana okungaphazamiseki kubasebenzi, amakhasimende, nezivakashi ngokufanayo. Kulo mhlahlandlela wonke, sigqamise ukuthi izinhlelo zezintambo ezisabalalisiwe zika-Narwhal zihlanganisa ukuzuza okuphezulu, i-VSWR ephansi, ukwakhiwa okuqinile okulinganiselwe nge-IP, ukunciphisa ukuphazamiseka, kanye namanani ancintisanayo ukuze kulethwe inani elihle kakhulu lesikhathi eside. Umkhiqizo wethu obanzi usekela amanethiwekhi akudala e-2G ne-3G kuyilapho uhlala usesimweni esihle sesikhathi esizayo se-4G LTE ne-5G zanamuhla, futhi izinketho zethu zokwenza ngendlela oyifisayo zivumelana nezici zezakhiwo ezihlukile zanoma yisiphi isakhiwo. Kusukela emibhoshongweni yamahhovisi ematasa kuya ezibhedlela ezinkulu ezisabalalisiwe namahhotela anokunethezeka, izintambo zethu zivele zafakazela ukuthembeka kwazo ezindaweni ezinzima zomhlaba wonke. Sisekelwa ubuchwepheshe beminyaka ye-RF, izimboni zokukhiqiza ezithuthukile, amazinga aqinile ekhwalithi, nokusekelwa kwamakhasimende okuzinikele, i-Shenzhen Narwhal ingumlingani wokukhiqiza izinkampani ezithembayo ngokuqinisekile ngezidingo zazo ezibalulekile zokuxhumana kwe-DAS yangaphakathi.

Ukulungele ukuphakamisa ukufinyeleleka kwakho ngaphakathi nokuthola inzuzo ephelele kukho konke uhlelo lwanamuhla lokusabalalisa izintambo olungakunikeza kwenhlangano yakho? Sikukhuthaza ngamandla ukuthi uxhumane nethimba lethu elinamava namuhla ukuze sixoxe ngezidingo zakho ezithile futhi sithole isincomo esikulungele esihambisana nesabelomali sakho, isikhathi sakho, kanye nemigomo yakho yokusebenza. Onjiniyela bethu bakulungele ukunikeza imininingwane ephelele yemikhiqizo, isiqondiso sokusetshenziswa, ukwesekwa kwamasampula, kanye nezilinganiso eziqhudelanayo zamaphrojekthi wanoma yisiphi isilinganiso. Vakashela i-Ikhaya ikhasi ukuze uhlole amakhono ethu aphelele, noma usebenzise eyethu Xhumana Nathi ikhasi lokusithumela imininingwane yephrojekthi yakho ngqo. Nge-Shenzhen Narwhal Electronic Technology Co., Ltd., awuthengi nje izimpondo — usungisa ubudlelwano besikhathi eside nomkhiqizi ozibophezele ngokujulile empumelelweni yakho yokuxhumana. Xhumana nathi namuhla futhi uzwe umehluko we-Narwhal ekugqamiseni izimpondo ze-DAS.