I-GWB104G Wideband LNB

Izici:

Imvamisa yokokufaka: 10.7~12.75GHz.

Imvamisa ye-LO: 10.4GHz.

Idizayini yokuphakelayo yesilinganiso sokudla sokudla okungu-0.6 F/D.

Ukusebenza kwe-LO okuzinzile.

Izimbobo ezimbili ze-RF, ngayinye i-300MHz ~ 2350MHz.


IMINININGWANE YOMKHIQIZO

Incazelo Yomkhiqizo

I-GWB104G iyi-wideband LNB enemiphumela emibili ye-RF.Nge-oscillator yendawo engu-10.4GHz, i-GWB104G iguqula i-10.7GHz~12.75GHz Ku amasignali webhendi ibe ngu-300MHz~2350MHz ophumayo.

I-low-noise block downconverter (LNB) idivayisi eyamukelayo efakwe ezitsheni zesathelayithi, eqoqa amaza omsakazo esitsheni bese iwaguqulela kusignali ethunyelwa ngekhebula kumamukeli ongaphakathi kwesakhiwo.I-LNB ibizwa nangokuthi ibhulokhi yomsindo ophansi, isiguquli somsindo ophansi (LNC), noma ngisho nesiguquli somsindo ophansi (LND).

I-LNB iyinhlanganisela yeamplifier enomsindo ophansi, i-frequency mixer, i-oscillator yendawo kanye ne-intermediate frequency (IF) amplifier.Isebenza njengengxenye engaphambili ye-RF yesamukeli sesathelayithi, ithola isignali ye-microwave kwisathelayithi eqoqwe yisitsha, iyikhulise, futhi yehlise ibhulokhi yamafrikhwensi ibe ibhulokhi ephansi yamafrikhwensi aphakathi nendawo (IF).Lokhu kuguqulwa kuvumela isignali ukuthi ihanjiswe kumamukeli we-TV yesathelayithi yasendlini kusetshenziswa intambo eshibhile ye-coaxial;uma isignali ihlala kufrikhwensi yayo yasekuqaleni ye-microwave izodinga ulayini we-waveguide obizayo nongasebenzi.

I-LNB ivamise ukuba yibhokisi elincane elilengiswa ku-boom eyodwa noma ngaphezulu amafushane, noma izingalo zokuphakelayo, ngaphambi kwesibonisi sesitsha, lapho igxila khona (nakuba ezinye imiklamo yesitsha ine-LNB phezu noma ngemuva kwesibonisi).Isignali ye-microwave esitsheni ithathwa yi-feedhorn ku-LNB futhi inikezwa engxenyeni ye-waveguide.Iphinikhodi yensimbi eyodwa noma ngaphezulu, noma ama-probe, aphumela ku-waveguide kuma-engeli angakwesokudla ku-eksisi futhi asebenze njengezimpondo, ephakela isignali ebhodini lesekethe eliphrintiwe ngaphakathi kwebhokisi elivikelwe le-LNB ukuze licutshungulwe.Isignali ephansi yefrikhwensi ye-IF iphuma kusokhethi ebhokisini lapho intambo ye-coaxial ixhumeka khona.

Ezinye izici:

Izimbobo ezimbili ze-RF, ngayinye i-300MHz ~ 2350MHz.

Isibalo somsindo ophansi.

Ukufakwa kalula.

Ukusetshenziswa kwamandla okuphansi.

Izinga eliphezulu lokuvikela isimo sezulu.

Ukufakwa okugcwele kwe-Ku-Band ye-Analog ne-HD Digital reception.


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