I-Radiyo ye-Digital Mobile (DMR) iziphindaphindi ziye zashintsha indlela yokuxhumana ezimbonini ezahlukene, kusukela ezokuphepha komphakathi kuya emicimbini emikhulu. Lezi zisetshenziswa njengezinsiza ezibalulekile ezandulela ukufinyelela kwemaradiyo esandleni kanye nezinsiza zokuxhumana ezihambayo, zenza ukuthi ukudluliswa kwezwi nedatha kube lula phezu kwezindawo ezibanzi. Njengoba izidingo zokuxhumana zikhula zibe nzima futhi zibe zinkulu, ukubaluleka kwe-DMR iziphindaphindi okuqinisekisiwe kuyavela ngokucacile. Ziqinisekisa izingxoxo ezicacile, ezingaphazamiseki ngisho nasezindaweni ezinzima, zenza zibe zibalulekile kumabhizinisi nezinhlelo ezithembele ekuxhumaneni okubalulekile.

Ukuthuthuka kobuchwepheshe be-digital radio kulethe izici ezithuthukisiwe ezifana nokucaca kwe-audio okuthuthukisiwe, ukusetshenziswa kahle kwespectrum, kanye nokuhlangana phakathi kwezinsiza. Ama-DMR repeaters akhona phambili kulolu shintsho, ehlinzeka ngezixazululo eziqinile ezixazulula izithiyo zezinhlelo ezijwayelekile ze-analog. Indima yabo ekuthuthukiseni ukusebenza kahle nokuphepha ayinakuphikwa, ikakhulukazi emikhakheni efana nezinsizakalo eziphuthumayo, ukuthutha, kanye nokwakha.

Ukuqonda ukusebenza kanye nezinzuzo ze-DMR repeaters kusiza amabhizinisi ukwenza izinqumo ezihlakaniphile lapho etshala imali kwi-communication infrastructure. I-Retevis RT97P Portable DMR Repeater iyisibonelo esihle sokwakhiwa okusha okuhlangana nokusetshenziswa okusebenzayo, kuhlinzeka abasebenzisi ngenkululeko nokusebenza. Le ndatshana ihlola izici zobuchwepheshe, izinzuzo, nezici ze-DMR repeaters, igxile kumodeli ye-Retevis RT97P, ukuze iqondise amabhizinisi ekwandiseni amakhono abo okuxhumana.

A DMR repeater iyithuluzi elakhiwe ukuze lamukele isignali ye-radio ye-digital bese iyithumele kabusha ngamandla aphezulu noma endaweni ehlukile, ngaleyo ndlela ikhulisa ibanga lokuxhumana phakathi kokusebenzisa i-radio. Ngokwehlukile kumarepeater ajwayelekile, ama-DMR repeater asebenzisa ubuchwepheshe be-Time Division Multiple Access (TDMA). I-TDMA ivumela izindlela ezimbili zokuxhumana ezihambisanayo nezizimele kumkhawulo owodwa ngokuhlukanisa isignali ibe yizikhala zexesha. Le miphumela ikhulisa amandla omjikelezo ngaphandle kokudinga ukwabiwa kwe-frequency eyengeziwe, okwenza i-DMR ibe nekhono eliphezulu ekusetshenzisweni kwesikhala.

I-repeater ithola ukudluliswa okuvela kumaradiyo ngaphakathi kwendawo yayo yokumboza futhi ikudlulisele kumaradiyo akude, ikwazi ukweqa izithiyo ezifana nezakhiwo, umhlaba, nezinye izithiyo zomsindo. Le nkonzo ibalulekile ukuze kugcinwe ubuqotho bokuxhumana ezindaweni ezikude noma ezinzima lapho ukuxhumana okuqondile phakathi kwamadivayisi kungasebenzi. Ngaphezu kwalokho, ubunjalo bedijithali be-DMR repeaters busekelwa izici advanced ezifana nokuxhumana okuvikelwe, imiyalezo yombhalo, nokudluliswa kwedatha ye-GPS, kuthuthukisa ukuphepha kokusebenza nokusebenza.

I-technology ye-DMR iphinde iqinisekise ukuhambisana kokubuyela emuva nezinhlelo ze-analog, ivumela ukudlulela kalula kumabhizinisi athuthukisa isakhiwo sabo sokuxhumana. Ikhono lokushintsha phakathi kwemodi ye-analog ne-digital likhuphula ukuhamba kwe-DMR repeaters futhi lunciphisa isidingo sokushintsha ngokushesha ama-radio akhona, lunikeza izixazululo ezisebenzayo kwezomnotho ezizimele zonke.

Enye yezinzuzo ezibaluleke kakhulu ze-DMR repeaters ukukwazi kwazo ukwandisa ububanzi bokuxhumana. Ngokwandisa nokuphinda kuthumele izimpawu, lezi zinsiza zenza abasebenzisi bakwazi ukugcina uxhumano ezindaweni ezinde, okubalulekile ikakhulukazi emikhakheni efana nezokuthutha, imicimbi yangaphandle, kanye nokuphendula ezimeni eziphuthumayo. Le ndawo ebanzi iqinisekisa ukuthi amaqembu angakwazi ukuhlela kahle ngisho noma ehlakazekile ezindaweni ezinkulu zejografi noma ehamba ezindaweni ezinzima.

Ngaphezu kokuhamba, ama-DMR repeaters athuthukisa ikhwalithi yesignali. Izimpawu zedijithali azithinteki kalula ekuphazamisekeni nasezwi elingalungile uma kuqhathaniswa nezimpawu ze-analog. Lokhu kuholela ekudlulisweni kwezwi okucacile, kunciphisa ukungaqondi kahle nokwandisa ukusebenza kahle. Ezindaweni zokuxhumana ezixhunywe kakhulu, njengezindawo zasemadolobheni noma ezindaweni zezimboni, ama-DMR repeaters asiza ukunciphisa ukujolisa kweziteshi nokuphazamiseka, asekelwa ukuxhumana okuthembekile ngaphansi kwezimo ezinzima.

Ngaphezu kwalokho, ama-DMR repeaters ahlinzeka ngendawo ebanzi yokumboza, okwenza kube kufanelekile ezindaweni zokusebenza ezinkulu, ezinhlelweni zokuphepha zomphakathi, nasekuphathweni kwemicimbi ehlelekile. Ikhono lawo lokuphatha imikhawulo eminingi kanye nabasebenzisi ngesikhathi esisodwa liqinisekisa ukuthi ukuxhumana kuhlala kungaphazamiseki, ngisho nasemazingeni aphezulu okudinga. Le scalability ibalulekile kumabhizinisi adinga amanethiwekhi okuxhumana athembekile ukuze kuqinisekiswe ukuphepha nokukhiqiza.

I-Retevis RT97P Portable DMR Repeater ibonakala njengesisombululo esihlukahlukene nesithembekile kumabhizinisi afuna ukuthuthukisa izinhlelo zabo zokuxhumana. Le divayisi isekela kokubili izimpawu zedijithali nezokwenziwa, ihlinzeka ngokuhlanganiswa okungaphazamiseki nezinsiza ezikhona kanye nokuguquguquka ezidingweni ezahlukene zokusebenza. Ukuthwala kwayo nokwakheka kwayo okuncane kuyenza ifaneleka ezimisweni ezihambayo, ukufakwa okwesikhashana, nezidingo zokuxhumana ezisekelwe emicimbini.

Izici ezisemqoka ze-RT97P zifaka phakathi ukwesekwa kwemigqa eyisishiyagalombili enezinga eliqinile lokuphakanyiswa nokwehla, okuvumela abasebenzisi ukuthi baphathe amaqembu okuxhumana amaningi kahle. I-duplexer eyakhelwe ngaphakathi kanye ne-LCD display kulula ukusebenza nokubheka, kwenza idivayisi ibe lula ukuyisebenzisa ngisho nabelungu abasha kwi-DMR technology. I-RT97P, enesisindo esingaphansi kwamakhilogremu ama-3, kulula ukuyithwala nokuyisebenzisa, inikeza ukuhamba kahle ezindaweni eziguquguqukayo.

Izinketho zamandla ze-RT97P zihluke-hluke, zifaka phakathi okokufaka kwe-DC12V kuya ku-24V, ama-adaptha wamandla ezimoto, kanye nokuhambisana namabhethri elanga. Lezi zinketho ziqinisekisa ukusebenza okuqhubekayo ezindaweni ezikude noma ngesikhathi sokusetshenziswa isikhathi eside ngaphandle, lapho imithombo yamandla ejwayelekile ingase ingatholakali. Yakhiwe ukuze ikwazi ukumelana nezimo zezulu ezinzima nokuphathwa okungafanele, i-RT97P iletha ukuqina okuhlangabezana nezidingo zabasebenzisi abangochwepheshe. Ngaphezu kwalokho, i-repeater ivumela ukwenziwa kwezifiso ze-TX ne-RX, okuvumela ukusethwa kokuxhumana okwenziwe ngokwezifiso ukuze kuhambisane nezidingo ezithile zokusebenza.

泉州市金通光电技术有限公司, eyaziwa ngokuzinikela kwayo ekwakheni nasekuthuthukiseni, ihlinzeka nge-Retevis RT97P, ekhombisa ugqozi lwenkampani lokuhlinzeka ngezixazululo zokuxhumana ezikhangayo nezithuthukisiwe. Ubuchwepheshe bawo buqinisekisa ukuthi amakhasimende athola imikhiqizo ethembekile esekelwa ngosizo lwezobuchwepheshe nolwazi olunembile. Ukuze uthole olunye ulwazi olunembile mayelana nohlu lwemikhiqizo yabo namakhono obuchwepheshe, abafundi abanentshisekelo bangavakashela ku-Imikhiqizoikhasi.

I-DMR repeaters, njenge-Retevis RT97P Portable DMR Repeater, idlala indima ebalulekile ekwandiseni amanethiwekhi okuxhumana ezimbonini ezahlukene. Ikhono lazo lokwandisa ibanga, ukuthuthukisa ikhwalithi yesignali, nokumboza izindawo ezinkulu lenza zibe amathuluzi abalulekile kumabhizinisi nezinhlelo ezincike ekuxhumaneni okwakho ngesikhathi nangokucacile. Ukuhlanganiswa kwezici advanced ezifana ne-TDMA technology nokuhambisana nezinhlelo ze-analog kunikeza abasebenzisi isakhiwo sokuxhumana esizokwazi ukuhamba phambili esivumelana nezidingo ezishintshashintshayo.

泉州市金通光电技术有限公司 ibonisa ubuholi ekunikezeni imikhiqizo yokuxhumana emisha ehlanganisa ukusebenza, ukuqina, kanye nomklamo olula kumsebenzisi. Ngokukhetha ama-DMR repeaters afana ne-RT97P, amabhizinisi angaqinisekisa ukusebenza kahle, ukuphepha, nokuxhumana nakwazulu ezinzima kakhulu.

Kulabo abanentshisekelo yokuhlola okwengeziwe mayelana ne-Retevis repeaters nokuthi ziqhathaniswa kanjani phakathi kwemodeli, izinsiza ezengeziwe nezilinganiso zitholakala ukuze ziqondise ukukhetha kwakho. Ukubandakanya imibono yezichwepheshe nolwazi oluphelele ngomkhiqizo kuzokwenza ukuthi amabhizinisi akwazi ukwandisa kahle izimali zawo zokuxhumana.

Sikhuthaza abafundi ukuthi bavakashele iMayelana Nathiikhasi lokufunda kabanzi nge-Qingzhou Jin Tong Optoelectronic Technology Co., Ltd. kanye nezibopho zayo zokuletha ubuchwepheshe bokuxhumana obuphambili. Impendulo yakho nemibuzo iyamukeleka engxenyeni yokuphawula ngezansi, lapho ungabelana khona ngemibono yakho noma ubuze imibuzo mayelana ne-DMR repeaters nemikhiqizo ehlobene.

Hlala uxhumekile ngokwabelana ngalesi sihloko nokuhlanganyela engxoxweni ukuze uthuthukise ukuqonda kwakho ngezixazululo zokuxhumana nge-digital radio.