Uma isethelayithi eyodwa inama-transponder anothile, ama-transponder atholakala ezindaweni ezimbili ezihlukene: I-Polarity Eqondile Nevundlile noma Yesandla Sesobunxele (LHCP) kanye Ne-Right Hand Circular Polarity (RHCP). Umamukeli ojwayelekile wesathelayithi angafunda umkhawulokudonsa we-RF ongu-950~2150MHz. Kunama-transponder aphezulu angama-32 ukusuka ku-950MHz ukuya ku-2150MHz.
I-Twin LNB kungenzeka iqoke i-LO frequency nge-satellite MSO. Imiphumela emibili ye-RF i-Vertical (RHCP) ne-Horizontal (LHCP), ngayinye inomkhawulokudonsa ongu-950~2150MHz. Uma isamba sesathelayithi inombolo ye-transponder ingaphansi kwama-64, singasebenzisa isisombululo esilandelayo ukusabalalisa lokhu okuqukethwe kwesathelayithi ezinkulungwaneni zamakhaya ngefayibha.
Emdwebeni ongenhla, i-GLB3500A-2T i-optical transmitter iguqula ama-LNB RF amawele kanye ne-Terrestrial TV (174~700MHz) RF ibe yifayibha eyodwa engu-1550nm ophahleni olulodwa lwesakhiwo. Okukhiphayo kokubona kweI-GLB3500A-2Tingashayela ama-32pcs optical receiver ngqo nge-PLC fiber splitter, lapho eyodwaGLB2000Ai-optical receiver inikeza amasignali e-satellite kanye ne-Terr TV ku-STB eyodwa ne-TV endlini eyodwa,I-GLB3500A-2WRisamukeli sokubona sisekela imbobo ye-Terr TV eyodwa yama-multi-TV kanye nama-STB ahlezi angu-4 endlini eyodwa. Uma inombolo yobhalisile ingaphezu kwamakhulu noma izinkulungwane emphakathini noma edolobheni, sizoba ne-amplifier eyodwa ye-GWA3530 ngemva kwe-GLB3500A-2T yesidluliseli esibonakalayo.GWA3530i-optical amplifier ine-8 noma 16 noma 32 noma 64 port, imbobo ngayinye ingashayela 16 noma 32 noma 64 optical receiver. Ngamanye amazwi, i-GWA3530 ingashayela izemukeli ze-optical ezingu-1024 noma izamukeli ze-optical ezingu-2048 noma izamukeli ze-optical ezingu-4096 ngebanga le-fiber elingu-20Km. Ngembobo yokufaka ye-OLT yokuzithandela, i-GWA3530 ingafaka i-TV RF yesathelayithi phezu kwefayibha efanayo ye-GPON noma yenethiwekhi ye-XGPON.
Izinzuzo zesathelayithi TV FTTH:
- Isidlo esisodwa sasihlala ababhalisile abangu-32 noma izinkulungwane zababhalisile
- Ikhwalithi engcono yesignali yesathelayithi endaweni ngayinye yefayibha
- Itheminali ye-Fiber ifakwa kalula emizuzwini emi-5 ngokuklama "plug and play".
- Isamukeli esivamile
Uma kukhona ama-transponder wesathelayithi angaphezu kuka-32 ku-polarity ngayinye yesathelayithi, ibhendi ephansi nebhendi ephakeme (ngaphansi kwethoni engu-22KHz) yethulwa ukuze ihlangabezane nesamukeli esivamile sesathelayithi esingu-950MHz~2150MHz ububanzi befrikhwensi. I-Twin wideband LNBI-GWB104Gine-10.4GHz LO imvamisa kanye nomkhawulokudonsa ophumayo we-RF ongu-300MHz~2350MHz, okungukuthi, i-wideband Vertical RF ilingana ne-Vertical Lower (VL) kanye ne-Vertical Higher (VH) kuyilapho i-wideband Horizontal RF ilingana ne-Horizontal Lower (HL) kanye ne-Horizontal Higher (HH) ). Nokho, i-wideband RF yomkhawulokudonsa ingaphezu komkhawulokudonsa we-RF wesamukeli sesathelayithi, sidinga i-chip ye-Digital Channel Satellite Switcher (dCSS) ukuze siguqule i-wideband RF ibe uhla lwesamukeli sesathelayithi. Ngaphezu kwalokho, umamukeli wesathelayithi kufanele asekele izinga elingavumelekile.
Emdwebeni ongenhla,I-GLB3500E-2Ti-optical transmitter iguqula ama-twin wideband LNB RFs kanye ne-Terrestrial TV (Max 7ch VHF, 174~250MHz) RF ibe yifayibha eyodwa engu-1550nm ophahleni olulodwa lwesakhiwo. Okukhiphayo okubonakalayo kwe-GLB3500E-2T kungashayela ama-32pcs ama-optical receiver ngqo noma izinkulungwane zabamukeli be-opticalGWA3530i-amplifier. Efulethini ngalinye, eyodwaI-GLB3500E-2WRi-optical receiver isekela izamukeli zesathelayithi ezi-4 ezingatholakali.
E-Europe, kuneziteshi ze-DTT ezingaphezu kuka-7 (174~700MHz), sinomdwebo olandelayo wokusabalalisa okuqukethwe okugcwele kwesathelayithi (njenge-Hot Bird 13E) kanye neziteshi ze-Maximum 28 DTT.
Emdwebeni ongenhla,I-GLB3500E-3Ti-optical transmitter iguqula ama-twin wideband LNB RFs kanye ne-Terrestrial TV (174~700MHz) RF ibe yifayibha eyodwa engu-1550nm ophahleni olulodwa lwesakhiwo. Okukhiphayo okubonakalayo kwe-GLB3500E-3T kungashayela ama-32pcs ama-optical receiver ngqo noma izinkulungwane zabamukeli be-opticalGWA3530i-amplifier. Efulethini ngalinye, eyodwaI-GLB3500-3WRisamukeli sokubona sinembobo ye-Terr TV yama-multi-TV kanye nembobo eyodwa ehlala izamukeli ezi-4 zesathelayithi ezingatholakali.