Iindaba - I-Helical Duplexer yoNxibelelwano lwe-VHF/UHF

Iibhendi zefrikhwensi ze-VHF/UHF ziyaqhubeka nokudlala indima engenakutshintshwa kunxibelelwano lwabantu kunye nolwemizi-mveliso.i-duplexer ejikelezayoIsebenza kakuhle ekuhluzeni, ihlala ixesha elide kwaye ixabisa kancinci, nto leyo eyenza ukuba ibe lolona khetho luphezulu kwiinkqubo zikanomathotholo, iziphindaphindi kunye nezixhobo eziphathwayo.

Inzuzo ephambili yokui-duplexer yeselula ye-helicalixhomekeke kuyilo lwayo lwesakhiwo esijikelezayo, esidityaniswe nobude obupheleleyo¼ λiteknoloji yesandi. Olu yilo luvumela ukulungiswa ngaphakathi I-frequency ye-150MHz kunye ne-380-450MHz iphakathi kwe-85 dB yokwahlulwa—ihluza ngempumelelo i-clutter ye-electromagnetic kwaye inciphisa ilahleko yokufaka ngokupheleleyo. Ngokwesakhiwo,i-duplexer ejikelezayoinendlu ye-aluminium encinci ekhutshiweyo, encediswa yi-chassis yentsimbi engashukumiyo kunye nezinto ezifakwe i-Teflon-insulated. Ingaphandle layo ligqunywe nge-vinyl emnyama engagqwaliyo, ukuqinisekisa ukusebenza okuzinzileyo nakwiindawo ezingaphandle nezoshishino ezinzima.

⭐Imizekelo emithathu yesicelo esingundoqo

1.Iziphindaphindo zamandla aphantsi: Igcina i-Voltage Standing Wave Ratio (VSWR) ezinzileyo nezinzileyo ngexesha lokusebenza ixesha elide komthwalo opheleleyo, inciphisa kakhulu ukulahleka kwamandla. Ifanelekile ngokukodwa ukuthunyelwa ngaphandle kwengqwalaselo kwiindawo ezisezintabeni, ezingaphantsi komhlaba, nakwezinye iindawo, inceda ekwandiseni ukugubungela unxibelelwano.

2. Iirediyo ezingenazingcingo zedijithali kunye ne-analog: Igubungela iibhendi zefrikhwensi ze-VHF 150 MHz kunye ne-UHF 380–450 MHz, ivumela ukuhlanganiswa okungenamthungo nezixhobo eziqhelekileyo ngaphandle kwesidingo sokulungiswa kweefrikhwensi ezongezelelweyo. Isusa ngokupheleleyo i-crosstalk kwiindawo ezintsonkothileyo ze-electromagnetic, ilungiselela zombini iimfuno zonxibelelwano lokuthunyelwa kobuchwephesha kunye neemfuno zokusetyenziswa kwerediyo yabaqalayo.

3. Iselfowuni igcwele Izixhobo zeDuplex: Inesakhiwo esincinci, ukumelana nokungcangcazela, kunye nokuguquguquka kobushushu, ivumela ukuhanjiswa kwesignali okugudileyo nokungqameneyo. Yinto efanelekileyo yokufanisa iimeko ezifana nokuhlangula ngexesha likaxakeka kunye nemisebenzi yasentsimini.

Xa kuthelekiswa nobukhulu be-duplexer yendabuko, le mveliso ifikelela kulungelelwano olugqibeleleyo phakathi kokusebenza nokusebenza kakuhle, kunye neenzuzo ezibalulekileyo ekusebenziseni amandla kakuhle kunye nokusebenza kakuhle kweendleko. Ifanelekile ukusasazwa okukhulu kwiiprojekthi ezincinci kunye nokuphuculwa kwezixhobo zobungcali, inika inkxaso enamandla kunxibelelwano lwesizukulwana esilandelayo lwe-VHF/UHF..

Qhagamshelana nathi ukuze ufumane isicatshulwa! Le mveliso isetyenziswa kakhulu kukhuseleko loluntu, uthutho kunye nothutho, ukwenziwa kwezinto ngokuzenzekelayo kwimizi-mveliso, kunye nonomathotholo wabantu abangengabo abaqhelekileyo, ithembeke kakhulu yimarike.