{"id":43816,"date":"2020-10-22T10:09:48","date_gmt":"2020-10-22T08:09:48","guid":{"rendered":"https:\/\/sviluppo.fracarro.com\/multiswitch-scd2\/tecnologia-wideband\/"},"modified":"2023-06-21T13:57:43","modified_gmt":"2023-06-21T11:57:43","slug":"technologie-wideband","status":"publish","type":"page","link":"https:\/\/fracarro.com\/fr\/multiswitch-scd2\/technologie-wideband\/","title":{"rendered":"Technologie Wide Band"},"content":{"rendered":"

TECHNOLOGIE WIDE BAND<\/h1><\/div>

Gr\u00e2ce \u00e0 la technologie Wide band, les LNB peuvent \u00eatre connect\u00e9s aux multiswitches Fracarro SCD2 avec seulement 2 c\u00e2bles coaxiaux pour chaque satellite, permettant une installation rapide et facile m\u00eame dans les plus petits espaces.<\/p>\n<\/div><\/div><\/div><\/div><\/div>

Avec la technologie WIDE BAND, le LNB fournit toute la polarit\u00e9 horizontale et verticale sur les deux sorties, occupant la bande de 290 \u00e0 2340 MHz et laissant la t\u00e2che au multiswitch de s\u00e9parer chacune d\u2019elles en deux parties basse et haute.<\/p>\n

Comme dans la technologie QUATTRO, le multiswitch envoie alors au r\u00e9cepteur uniquement la bande souhait\u00e9e (VL, HL, VH ou HH) ou le transpondeur unique en fonction de la commande DiSEqC re\u00e7ue.<\/p>\n<\/div>

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<\/span><\/div>
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WIDE BAND et QUATTRO: comparaison des deux technologies<\/h2><\/div>
<\/div><\/div><\/div>

Nombre de c\u00e2bles<\/h3><\/div>

Avec la technologie WIDEBAND, le nombre de c\u00e2bles coaxiaux reliant la LNB au multiswitch est de moiti\u00e9 (2 au lieu de 4): l\u2019installation est donc plus rapide et plus facile \u00e0 r\u00e9aliser, m\u00eame dans le cas de petits espaces. En utilisant les c\u00e2bles existants, la technologie WIDE BAND permet \u00e9galement de convertir un syst\u00e8me traditionnel \u00e0 un seul satellite QUATTRO en double satellite WIDEBAND: en fait, Hotbird 13 \u00b0 E et Astra 19,2 \u00b0 E peuvent \u00eatre re\u00e7us et distribu\u00e9s avec seulement 4 c\u00e2bles descendant du toit.<\/p>\n<\/div>

Choix de produits<\/h3><\/div>

Les bandes occup\u00e9es par les signaux de sortie des LNB qui vont vers les multi-commutateurs sont diff\u00e9rentes dans les deux technologies et peuvent \u00e9galement varier sur diff\u00e9rents mod\u00e8les de LNB WIDE BAND; pour cette raison, si vous utilisez un LNB de type WIDE BAND avec un oscillateur local \u00e0 10410 MHz (le plus courant du march\u00e9), le multiswitch qui y est connect\u00e9 doit \u00e9galement \u00eatre compatible WIDE BAND et calibr\u00e9 sur la m\u00eame fr\u00e9quence que l\u2019oscillateur.<\/p>\n<\/div>

D\u00e9codeur et distribution<\/h3><\/div>

Ils sont les m\u00eames dans les deux technologies car le signal satellite \u00e9mis par le multiswitch QUATTRO ou WIDE BAND, qui dessert la prise utilisateur, occupe toujours la bande de 950 \u00e0 2150 MHz; Les c\u00e2bles, les r\u00e9partiteurs et les r\u00e9cepteurs (qu\u2019ils soient standard, SCR ou SCD2 dCSS) sont dans tous les cas compatibles avec les deux technologies. Dans les syst\u00e8mes WIDE BAND, lorsqu\u2019il y a une division du signal le long du conducteur descendant (entre la LNB et le multiswitch), il est n\u00e9cessaire d\u2019utiliser des produits avec une bande allant jusqu\u2019\u00e0 2340 MHz.<\/p>\n<\/div>

<\/div><\/div><\/div>

LNB<\/h3><\/div>
\n\n\n\n\n\n\n
QUATTRO<\/td>\nWIDEBAND<\/td>\n<\/tr>\n
Elle re\u00e7oit les polarit\u00e9s verticale et horizontale du satellite.<\/td>\nElle re\u00e7oit les polarit\u00e9s verticale et horizontale du satellite.<\/td>\n<\/tr>\n
S\u00e9pare chacune d\u2019elles dans la bande basse de 10,7 \u00e0 11,7 GHz et la bande haute de 11,7 \u00e0 12,75 GHz.<\/td>\n<\/td>\n<\/tr>\n
Elle les transpose sur 4 c\u00e2bles coaxiaux sur des fr\u00e9quences<\/strong> allant de 950 MHz \u00e0 2150 MHz.<\/td>\nElle les transpose sur 2 c\u00e2bles coaxiaux sur des fr\u00e9quences<\/strong> allant de 290 \u00e0 2340 MHz.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>

MULTISWITCH<\/h3><\/div>
\n\n\n\n\n\n\n
QUATTRO<\/td>\nWIDEBAND<\/td>\n<\/tr>\n
Il re\u00e7oit de la LNB les bandes VL, HL, VH et HH<\/td>\nIl re\u00e7oit de la \u2019LNB les polarit\u00e9s horizontale et verticale.<\/td>\n<\/tr>\n
<\/td>\nIl s\u00e9pare chacune d\u2019elles en bande basse de 950 \u00e0 1950 MHz et bande haute de 1100 \u00e0 2150 MHz.<\/strong><\/td>\n<\/tr>\n
Il envoie au d\u00e9codeur uniquement la bande, et polarit\u00e9 demand\u00e9es en fonction du signal DiSEqC re\u00e7u.<\/td>\nIl envoie au d\u00e9codeur uniquement la bande, et polarit\u00e9 demand\u00e9es en fonction du signal DiSEqC re\u00e7u.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>
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