Chii chinonzi aDuplexer?
Duplexer chishandiso chinobvumira bi-directional kutaurirana pane imwe chiteshi. Mumaredhiyo ekutaurirana masisitimu, inoparadzanisa inogamuchira kubva kune inotapurirana ichivabvumidza kugovera yakafanana antenna. Mazhinji eredhiyo anodzokorora masisitimu anosanganisira duplexer.
Duplexers vanofanira:
Gadzirira kushanda mubhendi re frequency rinoshandiswa neanogamuchira uye transmitter uye inofanirwa kukwanisa kubata simba rinobuda reiyo transmitter.
Ipa kwakaringana kurambwa kweruzha rwetransmitter runoitika panguva yekugamuchira frequency, uye inofanirwa kugadzirwa kuti ishande pa, kana zvishoma pane, kupatsanurwa kwefrequency pakati peanotumira uye anogamuchira.
Ipa yakakwana yekuzvimiririra kudzivirira inogamuchira desensitization.
Diplexer vs Duplexer. Chii chakasiyana?
A diplexer chinhu chinongoitwa chinosanganisa maviri ekuisa mune zvakajairika kubuda. Iwo masiginecha pamapupu 1 uye 2 anogara akasiyana mabhendi. Nekuda kweizvozvo, masaini ari pamapupu 1 uye 2 anogona kugarisana pane zvakabuda pasina kupindirana. Iyo inozivikanwa zvakare semuchinjika bhendi musanganiswa. A duplexer chishandiso chinotendera chinobvumira bi-directional (duplex) kutaurirana kwekutumira uye kugamuchira ma frequency mukati mebhendi rimwe chete pamusoro penzira imwe.
Mhando dzeDuplexers
Kune maviri akakosha marudzi e duplexers: Band Pass uye Band Reject.
Yakajairika antenna ine duplexer
Chakanakira kushandisa duplexer ndechekuti isu tinogona kutamisa uye kugamuchira neantenna imwe chete. Iine nzvimbo pashongwe panzvimbo dzezviteshi zvepasi paprimiyamu, iyi mukana chaiwo.
Mune imwechete chiteshi masisitimu, mune imwe chete transmitter uye imwe chete inogamuchira, kushandisa duplexer kuitira kuti vagovane antenna yakajairika isarudzo yakatwasuka. Nekudaro, kana akawanda-chaneru masisitimu ane akati wandei akasanganiswa ekufambisa uye ekugamuchira chiteshi akatariswa, mamiriro acho anowedzera kuoma.
Iko kusarudzika kukuru kwekushandisa duplexers mune multichannel masisitimu inogona kuoneka kana isu tichifunga transmitter intermodulation. Uku ndiko kusanganiswa kwemasaini akawanda ekutumira masaini pane antenna.
Kuparadzanisa Tx uye Rx antennas
Kana tikashandisa yakaparadzana kutumira uye kugamuchira antennas, zvinotora imwe nzvimbo pashongwe.
Mukana wakakura ndewekuti, nepo passive intermodulation ichiri kuitika nenzira imwechete pakati peakasanganiswa anofambiswa masaini, hapasisina nzira yakananga yekuti zvigadzirwa izvi zvisvike.
mugamuchiri. Pane kudaro, kuzviparadzanisa pakati pekutumira uye kugamuchira antenna kunopa imwe dziviriro. Kana ma transmitters uye vanogamuchira vakarongerwa mune co-linear fashoni (kureva: imwe yakananga pamusoro peimwe, kazhinji ine antenna inogashira yakakwirira kumusoro kweshongwe), saka kuzviparadzanisa zvinopfuura makumi mashanu dB zvinogoneka nyore.
Saka mukupedzisa, kune imwechete chiteshi masisitimu, enda kumberi uye shandisa duplexer. Asi kune akawanda-channel masisitimu, nepo akaparadzana antenna achikubhadharira imwe nzvimbo pashongwe yega yega, iyi ndiyo yakanyanya kusimba sarudzo. Iyo inodzivirira system yako zvirinani kubva pakukanganiswa kwakakosha kubva mukupindirana kwekuita semhedzisiro yeayo madiki uye akaoma kupatsanura kukanganisa kwekusangana kana kugadzirisa.
UHF DuplexerProject
Kukurudzira apa ndiko kuchengetedza kuiswa kwetambo mukati memba.
Payakavakwa, imba yangu yakaiswa nekamwe coaxial kudonhedza tambo kubva kumusoro kusvika kuimba yekutandarira, yakanyatsovigwa mumadziro egomba. Iyi tambo inotakura DVB TV chiteshi kubva padenga antenna kuenda kuTV muimba yekutandarira. Ini zvakare ndine tambo yeTV bhokisi muimba yekutandarira yandinoda kugovera kutenderedza imba uye yekugovera amp inoiswa zvakanyanya muloft kuti iwane nyore kumakamuri ese. Naizvozvo, Duplexer kune chero kumagumo kwetambo yekudonha inoibvumira kutakura DVB-TV pasi coax uye Cable-TV kumusoro coax panguva imwe chete, zvichipa ini kusarudza yakakodzera Frequency yekugovera Cable-TV.
Iyo TV Multiplexes inotanga pa739MHz uye inowedzera kusvika ku800MHz. Iyo Cable-TV yekugovera inorongeka kubva ku471-860 MHz. Ini nokudaro ndichashandisa chikamu chepasi-pasi kuti nditakure CableTV kukwidza coax pa ~ 488MHz uye chikamu chepamusoro-soro kutakura DVB-TV pasi. Iyo yakaderera pass chikamu ichatakurawo DC kuti isimbise kugovera amp mune loft uye Magic-ziso kure kure kudzora macode kumashure pasi pasi Cable-TV bhokisi.
Isu tinogona zvakare kugadzirisa iyo Cavity Duplexer zvinoenderana nezvaunoda. Iwe unogona kupinda peji rekugadzirisa kuti upe zvakatemwa zvaunoda.
Nguva yekutumira: Sep-24-2022
