Chii chinonziDuplexer?
Duplexer chishandiso chinobvumira kutaurirana kwemativi maviri kuburikidza nechiteshi chimwe chete. Muhurongwa hwekutaurirana neredhiyo, chinoparadzanisa receiver kubva kune transmitter uku chichibvumira kuti ishandise antenna yakafanana. Mazhinji masystem eredhiyo repeater anosanganisira duplexer.
Vatyairi vemaduplex vanofanira:
Yakagadzirwa kuti ishande mubhendi rema frequency rinoshandiswa neanogamuchira uye transmitter uye inofanira kukwanisa kubata simba rekubuda kwetransmitter.
Kurambwa kwakakwana kweruzha rwekutumira runoitika pahuwandu hwekugamuchira, uye runofanira kugadzirwa kuti rushande pa, kana kuti pasi pe, kupatsanurwa kwema frequency pakati pekutumira nekugamuchira.
Isa nzvimbo yakakwana yekuzviparadzanisa kudzivirira kusanzwa kwemugamuchiri.
Diplexer vs Duplexer. Musiyano uripi?
Diplexer chishandiso chinoshandiswa passive chinosanganisa ma inputs maviri kuita chinhu chimwe chete chinobuda. Masignals ari pa inputs 1 ne2 anogara muma frequency bands akasiyana. Nekuda kweizvozvo, masignals ari pa inputs 1 ne2 anogona kugara pamwe chete pakubuda pasina kukanganisana. Inozivikanwawo se cross band combiner. Duplexer chishandiso chinoshandiswa passive chinobvumira kutaurirana kwe bi-directional (duplex) kwe transmit nekugamuchira ma frequency mukati me band rimwe chete munzira imwe chete.
Mhando dzeDuplexers
Kune mhando mbiri huru dzemaduplexer: Band Pass neBand Reject.
Antena yakajairika ine duplexer
Chinhu chakanaka chekushandisa duplexer ndechekuti tinokwanisa kutumira nekugamuchira neantenna imwe chete. Nenzvimbo iri pashongwe panzvimbo dzechiteshi chepasi iri yepamusoro, iyi inyaya yakanaka kwazvo.
Mumasystem echiteshi chimwe chete, uko kune transmitter imwe chete nereceiver imwe chete, kushandisa duplexer kuti vagovane antenna yakafanana isarudzo iri nyore. Zvisinei, kana masisitimu echiteshi akawanda ane nzira dzakasiyana siyana dzekutumira nekugamuchira akafungwa, mamiriro acho ezvinhu anova akaoma.
Dambudziko guru rekushandisa maduplexer mumasystem e multichannel rinogona kuonekwa kana tikafunga nezve transmitter intermodulation. Uku ndiko kusanganiswa kwemasaini akawanda ekutumira masaini pa antenna.
Maantenna eTx neRx akasiyana
Kana tikashandisa ma antenna akasiyana ekutumira nekugamuchira, zvinotora nzvimbo yakawanda pashongwe.
Chinhu chikuru ndechekuti, nepo passive intermodulation ichiri kuitika nenzira imwecheteyo pakati pezviratidzo zvinotumirwa zvakabatana, hapasisina nzira yakatwasuka yekuti zvigadzirwa izvi zvisvike.
mugamuchiri. Pane kudaro, kuparadzaniswa pakati pemaantenna ekutumira nekugamuchira kunopa dziviriro yakawedzerwa. Kana matransmitter neanogamuchira akarongwa nenzira yakafanana (kureva: imwe iri pamusoro peimwe, kazhinji neantenna yekugamuchira iri pamusoro peshongwe), saka kuparadzaniswa kunodarika 50dB kunogona kuitwa zviri nyore.
Saka mukupedzisa, kune masisitimu echiteshi chimwe chete, enderera mberi nekushandisa duplexer. Asi kune masisitimu ane machannel akawanda, nepo maantenna akasiyana achikutorera nzvimbo yakawanda pashongwe yega yega, iyi ndiyo sarudzo yakasimba. Inodzivirira sisitimu yako zviri nani kubva mukukanganiswa kukuru kubva papassive intermodulation nekuda kwezvikanganiso zvidiki uye zvakaoma kusiyanisa pakuungana kana kugadzirisa.
UHF DuplexerPurojekiti
Chinonyanya kukosha apa ndechekuchengetedza kuiswa kwetambo mumba.
Payakavakwa, imba yangu yakaiswa netambo imwe chete yekudzikisa denga kubva padenga kuenda kuimba yekutandarira, yakavanzwa zvakanaka mumadziro emukati. Tambo iyi inotakura maDVB TV channels kubva padenga reantenna kuenda kuTV iri muimba yekutandarira. Ndinewo cable TV box muimba yekutandarira yandinoda kugovera mumba uye distribution amp ndiyo inonyanya kuiswa muimba yekutandarira kuti ive nyore kusvika kumakamuri ese. Saka, Duplexer iri kumagumo e drop cable ichaibvumira kutakura DVB-TV pasi pe coax uye Cable-TV kumusoro panguva imwe chete, chero bedzi ndikasarudza Frequency yakakodzera yekugovera Cable-TV.
MaTV Multiplexes anotanga pa739MHz uye anotambanuka kusvika pa800MHz. Kugoverwa kweCable-TV kunogona kurongwa kubva pa471-860 MHz. Saka ndichaisa chikamu chepasita yakaderera kuti CableTV ikwire necoax pa~488MHz uye chikamu chepasita yakakwirira kuti ikwire DVB-TV pasi. Chikamu chepasita yakaderera chichatakurawo DC kuti ishandise amp yekugovera iri mudenga uye makodhi ekudzora eMagic-eye adzoke pasi mubhokisi reCable-TV.
Tinogonawo kugadzirisa Cavity Duplexer zvichienderana nezvamunoda. Munogona kupinda papeji rekugadzirisa kuti mupe zvinodiwa zvamunoda.
Nguva yekutumira: Gunyana-24-2022
