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ASTRA 3B - KONTROLA SIGNÁLU

SAT technikaAstra 3B už je na cieľovej pozícii a postupne aktivuje svoje transpondéry. Je tu čas na prvé merania signálu v praxi. Ako kontrolný etalón je ideálne použiť menšiu parabolu a to kvôli detailnejšiemu posúdeniu nameraných hodnôt. Naša zostava je pripravená, pozrime si prvé namerané hodnoty. Ospravedlňujem sa, materiál bude doplnený o niekoľko desiatok minút. Po vyrovnávacom góle NZ-SR som stratil koncentráciu a následne i súbor.Opakované meranie som uskutočnil 15.6.2010 o 20.15. Použitá offsetová parabolka má rozmer 38/35 cm, materiál hliník, LNB Twin Opticum LTP 02F šumové číslo 0,1 dB. Merací prístroj je SAT Finder s obrazovkou 7", teda uhlopriečka má rozmer cca 18 cm. Obloha bola v čase merania mierne zamračená. Namerané hodnoty sú nasledovné: STV 1 - 81/35, TA 3 - 81/53, ČT 1 - 81/38, PRIMA COOL - 81/53, TV NOVA - 81/30, TV BARRANDOV - 81/53, ČT 4 - 81/38, Z 1 - 81/53, ČT 24 - 81/38, Očko TV - 81/46, NOE TV - 81/38, PUBLIC TV - 81/30. Prvá hodnota je úroveň signálu, druhá, najdôležitejšia je kvalita. Tieto namerané hodnoty budú slúžiť pre porovnávanie až do definitívneho nábehu družice ASTRA 3B.
Luteran , June 15 2010 15:44:44 1 Komentáre · 5373 Prečítané · Vytlačiť

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