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View Full Version : Lnb Conectat Prin Fibra Optica


bonou2
16-03-08, 23:27
http://www.tele-satellite.com/TELE-satellite-0803/eng/invacom.pdf
yky
17-03-08, 00:14
DA intersanta chestie asa dispare factorul de atenuare pe cabu....:D ca la 0.3dB /km e insesizabil . Numai ca asta presupune si alte receptoare + ca atunci pentru controlul polaritatilor si alimentarea LNB.......trebuie alte ''solutii''=cabluri.
stal
17-03-08, 21:47
mmmda .E o chestie de dragul patentarii dar nu e rea
dan2000
17-03-08, 21:52
pai nu e rea dar nu foloseste la nimic , bani aruncati
laleauaneagra
17-03-08, 22:45
probabil ca alimentarea va fi facuta separat ce a ce nu ma incanta,costul cablului optic foarte scump mai ales pe distante mari iar receptoare cu intrare opticala via lnb nu exista,insa ma gandesc la calitatea imagini si a sunetului care sant fenomenale,om vedea:)
dan2000
17-03-08, 23:02
nu are legatura calitatea imaginii cu cablul de la lnb , in cel mai rau caz iti atenueaza semnalul . degeaba pun cablu optic , pierderile pe frecventa intermediara se compenseaza destul de usor plin amplificarea semnalului dar asta in cazul unui cablu foarte lung ,oricum pentru alimentarea lnb si motor va trebui sa ai alte cabluri . chiar nu vad rostul
unuldinei
17-03-08, 23:04
Aha , cam cum am vazut ca scrie acum pe lnb-uri ..."HD Ready".. politici comerciale.Poate ar prinde bine in radioastronomie ?
dan2000
17-03-08, 23:07
prinde bine la reclama ... am vazut antene de camera dvbt ready ...
zmeura
04-04-11, 16:41
Daca tot s-a readus in discutie .....
Iesirea unor astfel de LNB-uri este cuprinsa intre 950-5450 MHz deoarece face conversia tuturor celor 4 benzi.Semnalul se poate imparti in pana la 32 de clienti prin splitere pasive (deci nu ai nevoie de amplificatoare).Exista convertoare care fac trecerea la standardul normal dar ganditiva pe viitor cand vom avea receptoare cu astfel de intrari.
Avantaje ar fi: lungimi mari ale cablului,folosirea doar a unui cablu de la antena pana in casa,receptionarea simpla a benzilor low si high precum si a celor de pe H si V de catre toate receptoarele deodata,posibilitatea de a imparti semnalul la multe receptoare,fibra optica mult mai subtire si mai rezistenta.
Dezavantaj:alimentare separata,pret (deocamdata).
http://www.vanjak.com/index.php?dispatch=products.view&product_id=32473
marck
05-04-11, 10:11
Cu circa 400 de euro ai tot kit-ul

http://www.eubnet.de/images/sat-fo/whole/201005180000.jpg







http://www.televes.com/italiano/producto/catalogos/fibra_ottica.pdf
oasisone
27-04-11, 09:30
sunt foarte bune chestiile astea, desigur pentru acasa nu merita
dar pentru cladiri mari sunt esentiale, odata pentru blocuri foarte inalte, unde nu ai cum sa ajungi cu cablu coaxial de sus pana jos si doi in medii industriale, unde nu poti din cauza interderentelor electromagnetice.

Eu as zice ca mai degraba o sa prinda tehnologia catv-fo, media converterele au ajuns sa fie foarte ieftine aprox 300 400 lei si fibra este mai usor de tras, nu de lipit ce-i drept, dar se schimba
bonou2
30-05-13, 22:40
http://i56.photobucket.com/albums/g171/bonou12/LNB%20OPTIC%20INVACOM/DSCF3947_zps79e7ad42.jpg (http://s56.photobucket.com/user/bonou12/media/LNB%20OPTIC%20INVACOM/DSCF3947_zps79e7ad42.jpg.html)

http://i56.photobucket.com/albums/g171/bonou12/LNB%20OPTIC%20INVACOM/DSCF3948_zps5a850917.jpg (http://s56.photobucket.com/user/bonou12/media/LNB%20OPTIC%20INVACOM/DSCF3948_zps5a850917.jpg.html)

http://i56.photobucket.com/albums/g171/bonou12/LNB%20OPTIC%20INVACOM/DSCF3958_zpsa7c5f79d.jpg (http://s56.photobucket.com/user/bonou12/media/LNB%20OPTIC%20INVACOM/DSCF3958_zpsa7c5f79d.jpg.html)

http://i56.photobucket.com/albums/g171/bonou12/LNB%20OPTIC%20INVACOM/DSCF3985_zps05904e21.jpg (http://s56.photobucket.com/user/bonou12/media/LNB%20OPTIC%20INVACOM/DSCF3985_zps05904e21.jpg.html)

http://i56.photobucket.com/albums/g171/bonou12/LNB%20OPTIC%20INVACOM/DSCF3972_zps43e0270b.jpg (http://s56.photobucket.com/user/bonou12/media/LNB%20OPTIC%20INVACOM/DSCF3972_zps43e0270b.jpg.html)
claudiu
31-05-13, 08:44
solutie pentru ansambluri rezidentiale mari. Dar la cite convertoare optic-rf si multiswitchuri se aduna pentru distributie ,iesi mai ieftin pe o distributie clasica lnburi quattro-multiswitchuri.
val
31-05-13, 11:20
Semnalul de la LNB poate fi transmis pe net? Mai avem rude şi prieteni in State şi Canada...
Stefan Pop
02-06-13, 21:41
Printr-un receptor si slingbox? Ca altfel nu vad cum poti transmite transpondere intregi (S2), in direct pe net, la debit "full", chiar pe gigabit. :)
bonou2
06-06-13, 01:07
http://i56.photobucket.com/albums/g171/bonou12/LNB%20OPTIC%20INVACOM/DSCF3997_zps2987c8bb.jpg (http://s56.photobucket.com/user/bonou12/media/LNB%20OPTIC%20INVACOM/DSCF3997_zps2987c8bb.jpg.html)

http://i56.photobucket.com/albums/g171/bonou12/LNB%20OPTIC%20INVACOM/DSCF3999_zpscb710be5.jpg (http://s56.photobucket.com/user/bonou12/media/LNB%20OPTIC%20INVACOM/DSCF3999_zpscb710be5.jpg.html)

http://i56.photobucket.com/albums/g171/bonou12/LNB%20OPTIC%20INVACOM/DSCF4000_zpsaea4c6e1.jpg (http://s56.photobucket.com/user/bonou12/media/LNB%20OPTIC%20INVACOM/DSCF4000_zpsaea4c6e1.jpg.html)

http://i56.photobucket.com/albums/g171/bonou12/LNB%20OPTIC%20INVACOM/DSCF4002_zps4a64023a.jpg (http://s56.photobucket.com/user/bonou12/media/LNB%20OPTIC%20INVACOM/DSCF4002_zps4a64023a.jpg.html)

http://i56.photobucket.com/albums/g171/bonou12/LNB%20OPTIC%20INVACOM/DSCF4003_zps79ecaa03.jpg (http://s56.photobucket.com/user/bonou12/media/LNB%20OPTIC%20INVACOM/DSCF4003_zps79ecaa03.jpg.html)

urmeaza sa fac teste/comparatii cu alte lnb ca de exemplu familia inverto black ultra ,familia invacom
bonou2
09-06-13, 22:15
Eutelsat 5 West A @ 5° West

http://i56.photobucket.com/albums/g171/bonou12/LNB%20OPTIC%20INVACOM/DSCF4007_zps7f7e8ac4.jpg (http://s56.photobucket.com/user/bonou12/media/LNB%20OPTIC%20INVACOM/DSCF4007_zps7f7e8ac4.jpg.html)

http://i56.photobucket.com/albums/g171/bonou12/LNB%20OPTIC%20INVACOM/DSCF4013_zpsa2a18324.jpg (http://s56.photobucket.com/user/bonou12/media/LNB%20OPTIC%20INVACOM/DSCF4013_zpsa2a18324.jpg.html)

http://i56.photobucket.com/albums/g171/bonou12/LNB%20OPTIC%20INVACOM/DSCF4012_zps58bcdbf8.jpg (http://s56.photobucket.com/user/bonou12/media/LNB%20OPTIC%20INVACOM/DSCF4012_zps58bcdbf8.jpg.html)

http://i56.photobucket.com/albums/g171/bonou12/LNB%20OPTIC%20INVACOM/DSCF4014_zpsf84d937c.jpg (http://s56.photobucket.com/user/bonou12/media/LNB%20OPTIC%20INVACOM/DSCF4014_zpsf84d937c.jpg.html)


http://i56.photobucket.com/albums/g171/bonou12/LNB%20OPTIC%20INVACOM/DSCF4015_zps62f73462.jpg (http://s56.photobucket.com/user/bonou12/media/LNB%20OPTIC%20INVACOM/DSCF4015_zps62f73462.jpg.html)

antena offset 1m,lnb inverto ultra black,lnb optic--madrid-spania

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http://i56.photobucket.com/albums/g171/bonou12/LNB%20OPTIC%20INVACOM/DSCF4023_zpsd1d92153.jpg (http://s56.photobucket.com/user/bonou12/media/LNB%20OPTIC%20INVACOM/DSCF4023_zpsd1d92153.jpg.html)

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http://i56.photobucket.com/albums/g171/bonou12/LNB%20OPTIC%20INVACOM/DSCF4026_zpse49c4f54.jpg (http://s56.photobucket.com/user/bonou12/media/LNB%20OPTIC%20INVACOM/DSCF4026_zpse49c4f54.jpg.html)

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http://i56.photobucket.com/albums/g171/bonou12/LNB%20OPTIC%20INVACOM/DSCF4032_zpscc0a8c61.jpg (http://s56.photobucket.com/user/bonou12/media/LNB%20OPTIC%20INVACOM/DSCF4032_zpscc0a8c61.jpg.html)