GLB3500M-3 Terr TV iyo Hal ballaadhan oo LNB ah oo ka sarreeya fiber
Sharaxaada Alaabta
GLB3500M-3 waa isku xirka xargaha fibreerka ee CWDM ee modular, wuxuu gudbiyaa laba 290MHz ~ 2350MHz Satellite RF (taageeraya UK 290MHz ~ 2340MHz ama Europe 300MHz ~ 2350MHz) iyo hal 45MHz ~ 806MHz Terrestrial TV RF si ay ugu badan yihiin hal fiber.RF ballaaran wuxuu saaran yahay 1530nm ama 1550nm, TV-ga terrestrial RF wuxuu saaran yahay 1570nm.Waxaa jira fiber optic CWDM mux ama aaladda demux ee gudbiyaha indhaha ama hel si loo xaqiijiyo hal gudbinta fiber-ka.
SMTV (Satellite Master Antenna TV) ayaa caan ku ah in uu bixiyo TV satalaytka iyo TV-ga dhulka macaamiisha macaamiisha ku nool guryaha ama bulshada.SMTV-dhaqameedku waxa uu u qaybin karaa waxa ku jira anteenada sayidkiisa iyada oo loo sii marayo multiswitch-ka qaata satalaytka ee koraya fiilada coaxial.Khasaaraha sarreeya ee soo noqnoqda dayax-gacmeedka oo sarreeya awgeed, masaafada fiilada SMTV waa in ka yar 150 mitir xitaa haddii cod-weyneeye khadka ah.Si ka duwan nidaamka Quattro LNB SMTV ee caadiga ah, nidaamka ballaaran ee LNB SMTV wuxuu leeyahay kala badh xirayaasha RF iyo nambarada fiilada kala bar, taas oo badbaadisa qiimaha gudbinta.Kadib fiber-ka dhismaha, wideband SMTV optical receiver waa in uu la shaqeeyaa dCSS multiswitch si uu u yeesho hal wax soo saar RF ah oo leh 32 isticmaale oo firfircoon, halkaas oo xidhidh kasta oo isticmaala satalaytka STB ee midaysan.Midkan fiber-ka ah ee dhismaha iyo hal xadhig oo coaxial ah oo loogu talagalay isticmaaleyaasha badan ee dhismaha ayaa ka dhigaya rakibidda iyo dayactirka fiilada.
GLB3500M-3 isku xirka fiber waxaa ka mid ah GLB3500M-3T gudbiyaha indhaha iyo GLB3500M-3R qaataha indhaha.Iyada oo leysarka CWDM/photodiode iyo sanqadha hoose ee RF kontoroolka kontoroolka, hal GLB3500M-3T ayaa si toos ah u gaarsiin kara RF tayo sare leh ilaa ugu badnaan 32pcs GLB3500M-3R.
Sifooyin kale:
• Guryaha aluminium ee is haysta.
• 3 RF ballaaran oo madax banaan oo ka badan hal gudbinta fiber SM.
• Xaraf kasta oo RF ah: ballaaran LNB 290 ~ 2350MHz ama 45 ~ 806MHz.
• Photodiode Linearity High.
• Sawaxan hooseeya wareegga Xakamaynta Gain RF.
