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1.
TEST REPORT
Satellite Reception INFOSAT ﺑﻮﻕ ﺗﻐﺬﻳﺔ INFOSAT ﻣﺰﺩﻭﺝ C/Ku-band ﻣﻊ ﺳﻮﻳﺘﺶ DiSEqC ▲ ﻟﻘﺪ ﻟﻤﺴﻨﺎ ﻣﻮﺿﻮﻉ ﺍﺳﺘﻘﺒﺎﻝ C-bandﻓﻰ ﻣﺠﻠﺔ ﺗﻴﻠﻰ ﺳﺘﻼﻳﺖ ﺍﻟﺪﻭﻟﻴﺔ ﺃﺣﻴﺎﻧﺎ ﻣﻊ ﺍﺳﺘﺨﺪﺍﻡ ﺃﻃﺒﺎﻕ ﻛﺒﻴﺮﺓ ﺿﻤﻦ ﺍﻟﻌﺒﻮﺓ : ﺑﻮﻕ ﺗﻐﺬﻳﺔ ﻣﺰﺩﻭﺝ C ﺍﻟﺤﺠﻢ ﻟﻞ C-bandﻣﻊ Ku-bandﻣﻊ ﺳﻮﻳﺘﺶ DiSEqCﻟﻠﺘﻨﻘﻞ ﺑﻴﻨﻬﻤﺎ ﻭ ﺳﻮﻳﺘﺶ 81/41 ﻓﻮﻟﺖ ﻟﻠﺘﻨﻘﻞ ﻭ Ku-Bandﻳﺜﺒﺖ ﻋﻠﻴﺔ ﻭﺣﺪﺍﺕ ﺑﻴﻦ ﺍﻟﺤﺰﻣﺔ ﺍﻟﻤﻨﺨﻔﻀﺔ ﻭ ﺍﻟﻌﺎﻟﻴﺔ ﻣﻦ ﺍﻟﺘﺮﺩﺩﺍﺕ ﻭﻟﻜﻨﻨﺎ ﻟﻢ ﻧﻘﻢ ﺑﺎﺧﺘﺒﺎﺭ ﻫﺬﻩ ﺍﻟﺘﺠﺮﺑﺔ . ﺧﻔﺾ ﺷﻮﺷﺮﺓ ﺓ ﻛﺎﺑﻞ ﻟﻠﺘﻮﺻﻴﻞ ﻣﻊ ﺳﻮﻳﺘﺶ DiSEqCﺍﻟﻤﺪﻣﺞ ﻃﺒﻖ ﺑﻘﻄﺮ 2.1 ﻣﺘﺮ ﻭ ﺍﻟﺬﻯ ﻛﺎﻥ ﺇﻥ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﺍﻟﻤﺰﺩﻭﺝ ﺍﻟﻤﻘﺪﻡ ﻣﺜﺒﺘﺎ ﻋﻠﻰ ﺳﻄﺢ ﺍﻟﻤﺒﻨﻰ ، ﻭ ﺍﻟﻐﺮﻳﺐ ﻣﻦ ﺷﺮﻛﺔ Combifeedﻓﻰ ﺑﺎﻧﻜﻮﻙ ﺑﻤﺎ ﻓﻴﻪ ﺍﻟﻜﻔﺎﻳﺔ ﺃﻥ ﻫﺬﺍ ﺍﻟﻄﺒﻖ ﻳﻤﺜﻞ ﺑﺘﺎﻳﻼﺭﻧﺪ ، ﺑﻴﻨﻤﺎ ﺃﻥ ﺍﺳﺘﻘﺒﺎﻝ ﺍﻝ -C ﻧﻔﺲ ﺍﻟﻤﺸﻜﻠﺔ ﻟﻬﻮﺍﺓ ﺍﺳﺘﻘﺒﺎﻝ ﺍﻷﻗﻤﺎﺭ bandﻟﻠﻢ ﺗﻌﺪ ﻛﺜﻴ ﺮﺍ ﻓﻰ ﺃﻭﺭﻭﺑﺎ ﺍﻟﺼﻨﺎﻋﻴﺔ ﻓﻰ ﺃﻭﺭﻭﺑﺎ : ﻭ ﻫﻰ ﺇﺫﺍ ﻟﻢ ﻓﻬﻮ ﻻ ﻳﺘﺄﺛﺮ ﺑﺎﻧﺨﻔﺎﺽ ﺍﻟﻄﺎﻗﺔ ﻣﻦ ﻳﻜﻦ ﻟﺪﻳﻚ ﻓﻨﺎء ﻓﻌﻠﻴﻚ ﺗﺮﻛﻴﺐ ﺍﻟﻄﺒﻖ ﺍﻟﻘﻤﺮ ﺍﻟﺼﻨﺎﻋﺔ ﺃﻭ ﺑﺎﻟﺮﻃﻮﺑﺔ ﺍﻟﻌﺎﻟﻴﺔ ﻋﻠﻰ ﺳﻄﺢ ﻣﻨﺤﺪﺭ ﺃﻭ ﺍﻟﺸﺮﻓﺔ ﻭ ﻫﻨﺎ ﻣﻘﺎﺭﻧﻪ ﻣﻊ Ku-bandﻓﺎﻥ ﺍﺳﺘﻘﺒﺎﻝ ﻳﺼﻌﺐ ﺍﺳﺘﺨﺪﺍﻡ ﺃﻃﺒﺎﻕ ﻛﺒﻴﺮﺓ ﺍﻟﺤﺠﻢ ﻛﻠﻰ ﺍﻟﺤﺰﻣﺘﻴﻦ ﻣﻊ ﺑﻮﻕ ﺗﻐﺬﻳﺔ ﻭﺍﺣﺪ . ﻓﻘﻂ ﻳﻌﺘﺒﺮ ﺃﻣﺮ ﺟﻴﺪ ﻓﻬﻮ ﻳﻮﻓﺮ ﺗﻜﻠﻔﺔ ﺗﺮﻛﻴﺐ ﻃﺒﻖ ﺃﺧﺮ ، ﻭ ﻫﺬﺍ ﻳﻌﻄﻴﻨﺎ ﻭ ﻧﺸﻜﺮ ﻫﻨﺎ ﺍﻷﻗﻤﺎﺭ ﺍﻟﺼﻨﺎﻋﻴﺔ ﺳﺒﺒﺎ ﻟﻠﻌﻠﺐ ﺣﻮﻝ C-bandﻣﺮﺓ ﺍﻟﺤﺪﻳﺜﺔ ﻣﻦ C-bandﺃﻭ -Ku ﺃﺧﺮﻯ ﻫﻨﺎ ﻓﻰ ﺃﻭﺭﻭﺑﺎ . bandﺍﻟﺘﻰ ﺗﺒﺚ ﻟﻨﺎ ﺇﺷﻌﺎﻋﻬﺎ ﺑﻤﺰﻳﺪ ﻣﻦ ﺍﻟﻄﺎﻗﺔ ﻭ ﻟﻬﺬﺍ ﻟﻢ ﻳﻌﺪ ﺿﺮﻭﺭﻳﺎ ﺇﻥ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﺍﻟﻤﺰﺩﻭﺝ -C/Ku ﺍﺳﺘﺨﺪﺍﻡ ﺃﻃﺒﺎﻕ ﻛﺒﻴﺮﺓ ﺍﻟﺤﺠﻢ ، ﺇﻥ bandﺍﻟﺬﻯ ﺃﺗﻰ ﺇﻟﻴﻨﺎ ﻣﻦ ﺗﺎﻳﻼﻧﺪ ﻗﺪ ﻃﺒﻖ ﺑﻘﻄﺮ Ku-bandﻣﺘﺮ ﻳﻌﻄﻴﻨﺎ ﺗﻢ ﺗﺼﻤﻴﻤﻪ ﺃﺳﺎﺳﺎ ﻟﻼﺳﺘﺨﺪﺍﻡ ﻣﻊ ﺇﻣﻜﺎﻧﻴﺔ ﺍﺳﺘﻘﺒﺎﻝ ﺍﻵﻻﻑ ﻣﻦ ﺍﻟﻘﻨﻮﺍﺕ ﺍﻷﻃﺒﺎﻕ ﺍﻟﻤﻀﺒﻮﻃﺔ ﺍﻟﺒﺆﺭﺓ ﺑﺎﻟﺮﻏﻢ ﻣﻦ ﻣﻊ ﺣﺰﻣﺔ Ku-bandﻟﻜﻦ ﺍﺳﺘﺨﺪﺍﻡ ▲ ﺃﻥ ﻣﻊ ﻋﻤﻞ ﺑﻌﺾ ﺍﻟﺘﻌﺪﻳﻼﺕ ﻳﻤﻜﻦ ﺃﻥ ﻧﻈﺮﺓ ﺩﺍﺧﻞ ﻓﺘﺤﺔ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﻭ ﺑﻮﻕ ﺗﻐﺬﻳﺔ ﻣﺰﺩﻭﺝ ﻳﺘﻴﺢ ﻟﻚ ﺍﺳﺘﻘﺒﺎﻝ ﻳﺜﺒﺖ ﻋﻠﻰ ﻃﺒﻖ ﻏﻴﺮ ﻣﻀﺒﻮﻁ ﺍﻟﺒﺆﺭﺓ ﺳﻮﻑ ﺗﺮﻯ ﺑﻮﺿﻮﺡ ﻣﺼﺪﺭ ﺍﻟﻜﻬﺮﺑﺎء C-bandﺃﻳﻀﺎ ﻭ ﺑﺴﻬﻮﻟﺔ . ، ﻭ ﺃﺛﻨﺎء ﺍﻻﺧﺘﺒﺎﺭ ﻗﻤﻨﺎ ﺑﺎﺳﺘﺨﺪﺍﻡ ﺍﻟﻘﻄﺒﻴﺔ ﻻﺳﺘﻘﺒﺎﻝ ﺍﻟﻀﺮﻭﺭﻱ ﺍﻟﺪﺍﺋﺮﻳﺔ ، ﻳﻤﻜﻦ ﺇﺯﺍﻟﺘﻪ ﻓﻰ ﺣﺎﻟﺔ ﺍﺳﺘﻘﺒﺎﻝ ﺍﻟﻘﻄﺒﻴﺔ ﺍﻟﺨﻄﻴﺔ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﺍﻟﻤﺰﺩﻭﺝ INFOSAT ▲ C/Kuﺗﺮﺍﻩ ﻫﻨﺎ ﻣﺜﺒﺖ ﻋﻠﻰ ﻃﺒﻖ ﺑﻘﻄﺮ8.1 ﻣﺘﺮ 46 TELE-satellite & Broadband — 08-09/2007 — www.TELE-satellite.com
2.
ﻗﻮﻳﺔ ﻋﻨﺪ ﺗﺮﺩﺩ
3675Rﻭ ﻋﻨﺪﻫﺎ ﺷﻮﺷﺮﺓ C-bandﻭ ﺟﻬﺎﺯ ﺭﻳﺴﻴﻔﺮ ﻭ ﺑﺴﺮﻋﺔ ﺑﺪﺃﻧﺎ ﺍﻟﺒﺤﺚ ﻋﻦ ﺍﻟﻘﻨﻮﺍﺕ ﻣﺴﺠﻞ Eycos S55.12PVR ﻭﻭﺟﺪﻧﺎ ﺍﻟﻌﺪﻳﺪ ﻣﻦ ﺍﻟﻘﻨﻮﺍﺕ ﺍﻟﺮﻭﺳﻴﺔ ﻣﻊ ﺟﻬﺎﺯ ﻗﻴﺎﺱ ﺇﺷﺎ ﺭﺍﺕ -Prodig ﻣﻊ ﻭﻓﺮﺓ ﻓﻰ ﻗﻮﺓ ﺍﻹﺷﺎﺭﺓ ، ﻭ ﻃﺒﻘﺎ 5 ، ﻭ ﻗﻤﻨﺎ ﺑﺘﻮﺟﻴﻪ ﺍﻟﻄﺒﻖ ﺇﻟﻰ ﺍﻟﻘﻤﺮ ﻟﻠﻘﻨﻮﺍﺕ ﻓﺎﻥ ﻟﻘﻮﺍﺋﻢ SatcoDX EXPRESS A1Rﻭ ﻫﻮ ﻗﻤﺮ ﺍﻟﻘﻨﻮﺍﺕ ﻣﻦ ﺃﻣﺮﻳﻜﺎ ﺍﻟﺸﻤﺎﻟﻴﺔ ﻣﻊ C-bandﺫﻭ ﺍﻹﺷﺎﺭﺓ ﺍﻟﻘﻮﻳﺔ ﻋﻨﺪ ﺇﺷﺎ ﺭﺍﺕ ﻗﻮﻳﺔ ﻳﻤﻜﻦ ﺍﻟﺤﺼﻮﻝ ﻋﻠﻴﻬﺎ 04 ﺩﺭﺟﺔ ﺷﺮﻕ . ﻣﻦ ﺍﻟﻘﻤﺮ 608 NSSﻋﻨﺪ 5.04 ﺩﺭﺟﺔ ﻏﺮﺏ . ﻭ ﻫﻨﺎﻙ ﺍﻟﻌﺪﻳﺪ ﻣﻦ ﻭ ﻃﺒﻘﺎ ﻟﻤﻮﺍﺻﻔﺎﺕ ﺍﻟﺸﺮﻛﺔ ﻧﻮﺍﻗﻞ ﺍﻟﺒﺎﻗﺎﺕ ﻭ ﺍﻟﻘﻨﻮﺍﺕ ﺍﻟﻤﻔﺮﺩﺓ ﺍﻟﻤﻨﺘﺠﺔ INFOSATﻓﺎﻥ ﺑﻮﻕ ﺑﻤﻘﺪﺍﺭ ﺇﺷﺎﺭﺓ ﻛﺎﻓﻲ ، ﻛﻤﺎ ﻳﻮﺟﺪ ﻗﻨﻮﺍﺕ ﺍﻟﺘﻐﺬﻳﺔ ﺍﻟﻤﺰﺩﻭﺝ ﻳﻌﻤﻞ ﻋﻠﻰ ﻣﺪﻯ ﺑﺈﺷﺎ ﺭﺍﺕ ﻗﻮﻳﺔ ﻣﺜﻞ ﻗﻨﺎﺓ Rede ﺗﺮﺩﺩﺍﺕ ﻟﺤﺰﻣﺔ Ku-bandﻣﻦ Gospelﻋﻠﻰ ﺗﺮﺩﺩ 4108Rﻭ ﻗﻨﺎﺓ 7.01 ﺇﻟﻰ 57.21 ﺟﻴﺠﺎﻫﻴﺮﺗﺰ RCN TVﻋﻠﻰ ﺗﺮﺩﺩ 4016Rﻭ ﺑﺎﻹﺿﺎﻓﺔ ﺇﻟﻰ ﺣﺰﻣﺔ C-bandﻣﻦ ﻟﻸﺳﻒ ﺇﻥ ﻫﺬﻩ ﺍﻟﻘﻨﻮﺍﺕ ﻣﺸﻔﺮﺓ ، ﺣﺘﻰ ﻣﺪﻯ 4.3 ﺇﻟﻰ 2.4 ﺟﻴﺠﺎﻫﻴﺮﺗﺰ ﻣﻊ ﺃﻥ ﺑﺎﻗﺔ ImpSatﻣﻦ ﻓﻨﺰﻭﻳﻼ ﻋﻠﻰ LOFﺑﻤﻘﺪﺍﺭ 051.5 ﺟﻴﺠﺎﻫﻴﺮﺗﺰ ﺍﻟﺘﺮﺩﺩ 3880Rﻳﻤﻜﻦ ﺍﺳﺘﻘﺒﺎﻟﻬﺎ ﻭ ، ﻭ ﺍﻟﻤﻮﺍﺻﻔﺎﺕ ﺃﻳﻀﺎ ﺗﺪﻋﻰ ﺇﻥ ﻗﺪﺭﺓ ﺍﻟﺴﻴﺪ / Thomas Haringﻣﺤﺮﺭ ﺑﻤﺠﻠﺔ ▲ ﺗﻴﻠﻰ ﺳﺘﻼﻳﺖ ﻳﻘﻮﻡ ﺑﺘﻮﺟﻴﻪ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﺍﻟﻤﺰﺩﻭﺝ C/Ku-Bandﻋﻠﻰ ﻃﺒﻖ ﻏﻴﺮ ﻣﻀﺒﻮﻁ ﺍﻟﺒﺆﺭﺓ ﺑﻘﻄﺮ2.1 ﻣﺘﺮ. ﻟﻜﻦ ﻟﻴﺲ ﻓﻰ ﺣﺎﻻﺕ ﺍﻟﻄﻘﺲ ﺍﻟﺴﻴﺌﺔ ﺍﻟﻜﺴﺐ 56 ﺩﻳﺴﻴﺒﻞ ﺑﻤﻘﺪﺍﺭ ﺧﻔﺾ ﻟﻴﺲ ﺍﺣﺘ ﺮﺍﻓﻴﺎ ﻭ ﻟﻜﻨﻪ ﻓﻌﺎﻝ ﻭ ﻗﻠﻴﻞ ﻭ ﺣﻴﺚ ﺃﻥ ﺍﻟﻄﺒﻖ ﻏﻴﺮ ﻣﻀﺒﻮﻁ ، ﻛﻤﺎ ﺗﻮﺟﺪ ﺑﻌﺾ ﺍﻟﻨﻮﺍﻗﻞ ﺍﻷﺧﺮﻯ ﺷﻮﺷﺮﺓ 3.0 ﺩﻳﺴﻴﺒﻞ . ﺍﻟﺘﻜﻠﻔﺔ ، ﺇﻥ ﻋﻤﻠﻴﺔ ﺍﻟﺘﺮﻛﻴﺐ ﺗﺤﺘﺎﺝ ﺍﻟﺒﺆﺭﺓ ﻏﻴﺮ ﻣﺼﻤﻢ ﻓﻰ ﺍﻷﺳﺎﺱ ﺃﻳﻀﺎ . ﺇﻟﻰ ﺩﻗﺔ ﻛﺒﻴﺮﺓ ﻭ ﻟﻜﻦ ﺑﻌﺪ ﻣﺤﺎﻭﻻﺕ ﻣﻦ ﻓﻴﻤﻜﻦ C-band ﻻﺳﺘﻘﺒﺎﻝ ﻭ ﻓﻰ ﺃﺛﻨﺎء ﺍﻻﺧﺘﺒﺎﺭ ﺭﻛﺰﻧﺎ ﻋﻠﻰ ﻋﻤﻠﻴﺔ ﺍﻟﻀﺒﻂ ﺗﻢ ﻭﺿﻊ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﺍﻟﺤﺼﻮﻝ ﻋﻠﻰ ﻛﻼﺑﺔ ﻟﻠﻜﺎﺑﻼﺕ ﻭ ﻟﻘﺪ ﻧﺠﺤﻨﺎ ﻓﻰ ﺗﺠﺮﺑﺔ ﺍﺳﺘﻘﺒﺎﻝ C-bandﻭ ﺗﻢ ﺿﺒﻂ LOFﻭ ﻓﻰ ﻣﻜﺎﻧﻪ ﺍﻟﺼﺤﻴﺢ ﻋﻠﻰ ﺍﻟﻄﺒﻖ ﻭ ﺗﻢ ﻣﻦ ﺃﻱ ﻣﺘﺠﺮ ﺇﻟﻜﺘﺮﻭﻧﻴﺎﺕ ﻭ ﺍﻟﺬﻯ ﺍﻟﻘﻤﺮ 7 NSSﻋﻨﺪ 22 ﺩﺭﺟﺔ ﻧﻈﺮﻧﺎ ﺇﻟﻰ ﺟﻬﺎﺯ ﻗﻴﺎﺱ ﺍﻹﺷﺎ ﺭﺍﺕ ﺍﺳﺘﺨﺪﺍﻡ ﻭﺣﺪﺓ ﺧﻔﺾ ﺷﻮﺷﺮﺓ -Ku ﻳﺴﺘﺨﺪﻡ ﻟﺘﺜﺒﻴﺖ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﻏﺮﺏ ﻭ ﺍﺳﺘﻄﻌﻨﺎ ﺍﺳﺘﻘﺒﺎﻝ ﺍﻟﺘﺮﺩﺩ ﻭ ﺍﻟﺬﻯ ﺃﺷﺎﺭ ﺇﻟﻰ ﻭﺟﻮﺩ ﺇﺷﺎ ﺭﺍﺕ bandﺑﻘﻄﺮ 04ﻣﻢ ﻭ ﻭﺣﺪﺓ ﺧﻔﺾ ﺍﻟﻤﺰﺩﻭﺝ ﻋﻠﻰ ﺍﻟﻄﺒﻖ ﻭ ﻫﺬﺍ ﺍﻟﺤﻞ www.TELE-satellite.com — 08-09/2007 — TELE-satellite & Broadband 74
3.
ﻓﻰ ﺍﻟﻄﺒﻖ .
Ku-band ﺩﺭﺟﺔ ﺷﺮﻕ ﻭ ﺍﻟﻘﻤﺮ ASTRA ﺍﻟﺬﻯ ﺃﻭﺿﺢ ﺇﻥ ﺇﺷﺎ ﺭﺍﺕ ﻫﺬﺍ ﺍﻟﻘﻤﺮ 3650Rﺑﺪﻭﻥ ﺃﻳﺔ ﻣﺸﻜﻼﺕ ، ﻭ 3Aﻋﻨﺪ 5.32 ﺩﺭﺟﺔ ﺷﺮﻕ ﻭ ﺗﻢ ﺿﻌﻴﻔﺔ . ﻋﻨﺪ ﺍﻟﻘﻤﺮ 3 Atlantic Bird ﺩﻋﻨﺎ ﻧﻐﻴﺮ ﺍﻷﻣﻮﺭ ﻗﻠﻴﻼ ﻭ ﻧﺜﺒﺖ ﺍﺳﺘﻘﺒﺎﻝ ﻛﻞ ﻫﺬﻩ ﺍﻷﻗﻤﺎﺭ ﺑﺪﻭﻥ 5 ﺩﺭﺟﺔ ﻏﺮﺏ ﺍﺳﺘﻄﻌﻨﺎ ﺍﺳﺘﻘﺒﺎﻝ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﺍﻟﻤﺰﺩﻭﺝ ﻋﻠﻰ ﻃﺒﻖ ﺃﻳﺔ ﻣﺸﺎﻛﻞ ، ﻭ ﺍﻟﺠﺪﻳﺮ ﺑﺎﻟﺬﻛﺮ ﺁﻥ ﻭ ﺍﻟﺨﻄﻮﺓ ﺍﻟﺘﺎﻟﻴﺔ ﻛﺎﻧﺖ ﺑﺈﻟﻘﺎء ﺍﻟﺘﺮﺩﺩ 4157Lﻟﻜﻦ ﺑﻘﻴﺔ ﺍﻟﺘﺮﺩﺩﺍﺕ ﺑﻘﻄﺮ 8.1 ﻣﺘﺮ ﺍﻟﻤﻮﺟﻮﺩ ﻓﻰ ﻣﺮﻛﺰ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﺍﻟﻤﺰﺩﻭﺝ INFOSAT ﻧﻈﺮﺓ ﺇﻟﻰ ﺍﻟﺸﺮﻕ ، ﻭ ﻟﻘﺪ ﻗﻤﻨﺎ ﺑﺘﻮﺟﻴﻪ ﻛﺎﻧﺖ ﺿﻌﻴﻔﺔ ﻭ ﻻ ﻳﻤﻜﻦ ﺍﺳﺘﻘﺒﺎﻟﻬﺎ SatcoDXﻓﻰ ﻣﺪﻳﻨﺔ ﻟﻴﻮﻥ ﺑﻔﺮﻧﺴﺎ C/Ku-bandﻣﺼﻤﻢ ﻻﺳﺘﻘﺒﺎﻝ ﺍﻟﻄﺒﻖ ﺇﻟﻰ ﺍﻟﺸﺮﻕ ﻭ ﻛﺎﻧﺖ ﻫﻨﺎﻙ ، ﻭ ﻋﻠﻰ ﺍﻟﺮﻏﻢ ﻣﻦ ﺃﻥ ﺟﻬﺎﺯ ﻗﻴﺎﺱ . ﺍﻟﻘﻄﺒﻴﺔ ﺍﻟﺪﺍﺋﺮﻳﺔ ﻭ ﻟﻬﺬﺍ ﺗﻢ ﺍﺳﺘﻘﺒﺎﻝ ﺑﻌﺾ ﺍﻟﻤﻔﺎﺟﺌﺎﺕ ﻭ ﻟﻜﻦ ) ﻟﻸﺳﻒ ﺍﻹﺷﺎ ﺭﺍﺕ ﺃﻭﺿﺢ ﺃﻥ ﺗﻮﺟﺪ ﺍﻟﻌﺪﻳﺪ ﻣﻦ ﺍﻟﻘﻤﺮ 4 EUTELSAT Wﻋﻨﺪ 63 ﺍﻟﺒﺎﻗﺎﺕ ﻛﺎﻧﺖ ﻣﺸﻔﺮﺓ ( ﻓﻘﺪ ﺍﺳﺘﻄﻌﻨﺎ ﺍﻹﺷﺎ ﺭﺍﺕ ﻭﻟﻜﻨﻬﺎ ﻟﻢ ﺗﻜﻦ ﻗﻮﻳﺔ ﺑﻤﺎ ﻓﻴﻪ ﻭ ﻟﻢ ﻧﻔﺎﺟﺊ ﺑﺎﻟﻨﺘﺎﺋﺞ ﻓﻘﺪ ﺗﻢ ﺗﺜﺒﻴﺖ ﺩﺭﺟﺔ ﺷﺮﻕ ﺑﺠﻮﺩﺓ ﻣﺪﻫﺸﺔ ، ﻭ ﺇﺫﺍ ﺍﺳﺘﻘﺒﺎﻝ ﺑﺎﻗﺔ AFNﻋﻠﻰ ﺍﻟﻘﻤﺮ ﺍﻟﻜﻔﺎﻳﺔ ﻟﻼﺳﺘﻘﺒﺎﻝ ﺍﻟﻔﻌﻠﻲ . ﻭﺣﺪﺓ ﺧﻔﺾ ﺷﻮﺷﺮﺓ C-band ﻗﻤﻨﺎ ﺑﺈﺯﺍﻟﺔ ﺍﻟﻜﻬﺮﺑﺎﺋﻴﺔ ﻣﻦ ﺍﻟﺒﻮﻕ ﻓﺎﻥ 609 INTELSATﻋﻨﺪ 5.86 ﺑﻤﻘﺪﺍﺭ ﺧﻔﺾ ﺷﻮﺷﺮﺓ 17Kﻭ ﻗﺪ ﺍﻹﺷﺎ ﺭﺍﺕ ﺍﻷﻓﻘﻴﺔ ﻭ ﺍﻟ ﺮﺍﺳﻴﺔ ﺍﻟﻘﻴﺎﺳﻴﺔ ﺩﺭﺟﺔ ﺷﺮﻕ ﻋﻨﺪ ﺗﺮﺩﺩ 4080L ﻭ ﺗﺤﺴﻨﺖ ﺍﻷﻣﻮﺭ ﻗﻠﻴﻼ ﻣﻊ ﺍﻟﻘﻤﺮ ﺍﺛﺒﺖ ﺟﻬﺎﺯ ﻣﺤﻠﻞ ﺍﻹﺷﺎ ﺭﺍﺕ ﺍﻧﻪ ﻓﻰ ﻟﻞ Ku-bandﺳﺘﺴﺘﻘﺒﻞ ﺑﺪﻭﻥ ﺃﻳﺔ ، ﻭ ﺑﺎﻗﺔ Bangla Visionﻋﻠﻰ ﻋﻨﺪ 5.72 709 INTELSAT ﺑﻌﺾ ﺍﻟﺘﺮﺩﺩﺍﺕ ﻗﺪ ﺍﺳﺘﻄﺎﻉ ﺑﻮﻕ ﻣﺸﺎﻛﻞ . ﻋﻨﺪ ﺍﻟﻘﻤﺮ 01 TELSTAR ﺩﺭﺟﺔ ﻏﺮﺏ ﺣﻴﺚ ﺗﻢ ﺍﺳﺘﻘﺒﺎﻝ ﺛﻼﺛﺔ ﺍﻟﺘﻐﺬﻳﺔ ﺍﻟﻤﺰﺩﻭﺝ ﺇﻋﻄﺎء ﻧﺘﺎﺋﺞ ﺗﻔﻮﻕ 5.67 ﺩﺭﺟﺔ ﺷﺮﻕ ﺑﺘﺮﺩﺩ 4049H ﺗﺮﺩﺩﺍﺕ ) 3715R ، 3831Rﻭ ﻭﺣﺪﺓ ﺧﻔﺾ ﺍﻟﺸﻮﺷﺮﺓ ﺍﻟﻐﺎﻟﻴﺔ ﺍﻟﺜﻤﻦ ﺇﻥ ﺳﺒﺐ ﺍﻷﺩﺍء ﺍﻟﻤﻨﺨﻔﺾ ﻗﻠﻴﻼ ، ﻭ ﻗﺪ ﺗﻢ ﺍﺳﺘﻘﺒﺎﻝ ﺍﻟﻌﺪﻳﺪ ﻣﻦ ﺍﻟﻘﻨﻮﺍﺕ ، ( 4048Rﻭ ﺗﻢ ﺍﺳﺘﻘﺒﺎﻝ ﺗﺮﺩﺩ ﻭﺍﺣﺪ ﺑﻤﻘﺪﺍﺭ ﺧﻔﺾ ﺷﻮﺷﺮﺓ 15Kﺍﻟﺬﻯ ﺗﻢ ﻓﻰ ﺍﺳﺘﻘﺒﺎﻝ Ku-bandﻛﺎﻥ ﻭﺍﺿﺤﺎ ﺍﻟﺮﻭﺳﻴﺔ ﻋﻠﻰ ﺍﻟﻘﻤﺮ Express ﻓﻘﻂ ﻓﻰ ﻛﻠﻰ ﺍﻟﻘﻤﺮﻳﻦ NTELSAT ﺍﺧﺘﺒﺎﺭﻩ ﻋﻠﻰ ﺍﻟﻄﺒﻖ ﺍﻟﻐﻴﺮ ﻣﻀﺒﻮﻁ ﺣﻴﺚ ﺃﻥ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﺍﻟﻤﺰﺩﻭﺝ 1 AMﻋﻨﺪ 04 ﺩﺭﺟﺔ ﺷﺮﻕ ﻋﻠﻰ 108 ﻋﻨﺪ 5.13 ﺩﺭﺟﺔ ﻏﺮﺏ ﻭ ﺍﻟﺒﺆﺭﺓ . ﺇﻥ ﺍﺳﺘﻘﺒﺎﻝ Ku-band ﻣﺼﻤﻤﺎ ﻓﻰ ﺍﻷﺳﺎﺱ ﻟﻠﺘﺮﻛﻴﺐ ﻋﻠﻰ ﺍﻟﺮﻏﻢ ﻣﻦ ﺣﺎﻻﺕ ﺍﻟﻄﻘﺲ ﺍﻟﺴﻴﺌﺔ . ﻋﻨﺪ ﺍﻟﻘﻤﺮ 309 INTELSAT ﻳﺨﺘﻠﻒ ﻧﻮﻋﺎ ﻣﺎ ﺣﻴﺚ ﻳﺠﺐ ﺃﻥ ﻳ ﺰﺍﻝ ﻃﺒﻖ ﻣﻀﺒﻮﻁ ﺍﻟﺒﺆﺭﺓ ﻭ ﻟﻬﺬﺍ ﻻ ﻳﻤﻜﻦ 5.43 ﺩﺭﺟﺔ ﻏﺮﺏ . ﻣﺼﺪﺭ ﺍﻟﻜﻬﺮﺑﺎء ﻋﻦ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﻟﻮﻡ ﺍﻟﺸﺮﻛﺔ ﺍﻟﻤﻨﺘﺠﺔ ﻟﻬﺬﺍ ﺍﻟﺘﻘﺼﻴﺮ ﻭ ﺣﺘﻰ ﺍﻵﻥ ﻛﻨﺎ ﻣﺴﺮﻭﺭﻭﻥ ﺗﻤﺎﻣﺎ ﺍﻟﻤﺰﺩﻭﺝ . ﻓﻰ ﺍﻷﺩﺍء . ﺑﺎﻟﻨﺘﺎﺋﺞ ﺍﻟﺘﻰ ﺣﺼﻠﻨﺎ ﻋﻠﻴﻬﺎ ﻭ ﺍﻵﻥ ﻭ ﺑﺎﻟﻨﺴﺒﺔ ﻟﺒﺎﻗﻲ ﺍﻷﻗﻤﺎﺭ ﻛﺎﻥ ﺍﻟﻄﺒﻖ ﻋﻠﻴﻨﺎ ﺗﺠﺮﺑﺔ ﺍﺳﺘﻘﺒﺎﻝ Ku-band ﺻﻐﻴﺮ ﺟﺪﺍ ﺑﺤﻴﺚ ﻻ ﻳﻤﻜﻦ ﺍﺳﺘﻘﺒﺎﻟﻬﺎ ﻭ ﻳﻤﻜﻨﻨﺎ ﺍﻟﻘﻮﻝ ﺍﻧﻪ ﺑﺎﻟﺘﺄﻛﻴﺪ ﻭ ﻣﻦ ﻧﺎﺣﻴﺔ ﺃﺧﺮﻯ ﺃﻥ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ . ﻭ ﻗﻤﻨﺎ ﺑﺘﻮﺟﻴﻪ ﺍﻟﻄﺒﻖ ﺇﻟﻰ ﺍﻷﻗﻤﺎﺭ ، ﻭ ﻃﺒﻴﻌﻴﺎ ﻓﺎﻥ ﺍﻟﻘﻤﺮ ﺍﻟﻤﺘﻮﺳﻂ ﻳﻤﻜﻨﻚ ﺗﻐﻴﻴﺮ ﻭﺣﺪﺓ ﺧﻔﺾ ﺍﻟﺸﻮﺷﺮﺓ ﺍﻟﻤﺰﺩﻭﺝ ﺍﻟﻤﺼﻨﻮﻉ ﻳﺪﻭﻳﺎ ﻳﺼﻌﺐ ﻣﻦ ASTRA ﺍﻟﻘﻮﻳﺔ ﻣﺜﻞ ﺍﻟﻘﻤﺮ EXPRESS ﺍﻟﻘﻮﺓ ﻓﻰ ﺍﻹﺷﺎﺭﺓ ﺍﻟﺤﺎﻟﻴﺔ ﺑﺒﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﺍﻟﻤﺰﺩﻭﺝ ﻣﻦ ﻋﻤﻠﻴﺔ ﺗﻮﺟﻴﻪ ﻗﻄﻌﺔ ﺧﻔﺾ ﺍﻟﺸﻮﺷﺮﺓ ﻋﻨﺪ 2.91 ﺩﺭﺟﺔ ﺷﺮﻕ ﻭ ﺍﻟﻘﻤﺮ 3 Aﻋﻨﺪ 11 ﺩﺭﺟﺔ ﻏﺮﺏ ﻻ ﻳﻤﻜﻦ ، INFOSAT C/Ku-bandﻭ ﺇﻟﻰ ﺑﺆﺭﺓ ﺍﻟﻄﺒﻖ ﻭ ﺩﻋﻨﺎ ﻻ ﻧﻨﺴﻰ ﺃﻥ HOTBIRDﻋﻨﺪ 31 ﺩﺭﺟﺔ ﺷﺮﻕ ﺍﺳﺘﻘﺒﺎﻟﻪ ﺑﻄﺒﻖ ﺑﻘﻄﺮ 021ﺳﻢ ﻭ ﻟﻘﺪ ﻻ ﺗﺘﻮﻗﻊ ﻣﻌﺠ ﺰﺍﺕ ﻣﻊ ﺟﻮﺩﺓ ﺍﻹﺷﺎ ﺭﺍﺕ ﺗﻮﺟﻴﻪ C-bandﺍﺳﻬﻞ ﻣﻦ ﺗﻮﺟﻴﻪ ﻭ ﺍﻟﻘﻤﺮ 2 ASTRAﻋﻨﺪ 2.82 ﺭﺋﻴﻨﺎ ﻫﺬﺍ ﻓﻰ ﺟﻬﺎﺯ ﻣﺤﻠﻞ ﺍﻹﺷﺎ ﺭﺍﺕ ﻗﻴﺎﺱ ﺍﻹﺷﺎﺭﺍﺕ ﺑﺎﺳﺘﺨﺪﺍﻡ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﺍﻟﻤﺰﺩﻭﺝ C/Ku-Band ﻋﻠﻰ ﺍﻟﻘﻤﺮ 1 EXPRESS AMﻋﻨﺪ 04 ﺩﺭﺟﺔ ﻋﻠﻰ ﺍﻟﻘﻤﺮ 202 YAMALﻋﻨﺪ 94 ﺩﺭﺟﺔ ﺷﺮﻕ ﻋﻠﻰ ﺍﻟﻘﻤﺮ 608 NSSﻋﻨﺪ 5.913 ﺩﺭﺟﺔ ﺷﺮﻕ ﺷﺮﻕ ﺍﻟﻘﻄﺒﻴﺔ ﺍﻟﻴﻤﻨﻰ ﺍﻟﻘﻄﺒﻴﺔ ﺍﻟﻴﺴﺮﻯ )5.04 ﺩﺭﺟﺔ ﻏﺮﺏ ( ﺍﻟﻘﻄﺒﻴﺔ ﺍﻟﻴﻤﻨﻰ ﺍﻟﻘﻴﺎﺳﺎﺕ ﺑﺎﺳﺘﺨﺪﺍﻡ ﻭﺣﺪﺓ ﺧﻔﺾ ﺷﻮﺷﺮﺓ ﻋﺎﺩﻳﺔ ﺍﻟﻘﻴﺎﺳﺎﺕ ﺑﺎﺳﺘﺨﺪﺍﻡ ﻭﺣﺪﺓ ﺧﻔﺾ ﺷﻮﺷﺮﺓ ﻋﺎﺩﻳﺔ ﺍﻟﻘﻴﺎﺳﺎﺕ ﺑﺎﺳﺘﺨﺪﺍﻡ ﻭﺣﺪﺓ ﺧﻔﺾ ﺷﻮﺷﺮﺓ ﻋﺎﺩﻳﺔ C/Ku-Band ﺍﻟﻘﻴﺎﺳﺎﺕ ﺑﺎﺳﺘﺨﺪﺍﻡ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﺍﻟﻤﺰﺩﻭﺝ C/Ku-Band ﺍﻟﻘﻴﺎﺳﺎﺕ ﺑﺎﺳﺘﺨﺪﺍﻡ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﺍﻟﻤﺰﺩﻭﺝ C/Ku-Band ﺍﻟﻘﻴﺎﺳﺎﺕ ﺑﺎﺳﺘﺨﺪﺍﻡ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﺍﻟﻤﺰﺩﻭﺝ 48 TELE-satellite & Broadband — 08-09/2007 — www.TELE-satellite.com
4.
ﻭ ﻓﻰ ﻧﻔﺲ
ﺍﻟﻮﻗﺖ ﻳﻤﻜﻨﻚ ﺇﻟﻘﺎء ﻟﻜﻦ ﻓﺎﻥ ﺑﻮﻕKu-band ﻓﻰ ﺍﻟ ﺮﺍﺋﻊC-band ﻧﻈﺮﺓ ﻋﻠﻰ ﻋﺎﻟﻢ ﺍﻟﺘﻐﺬﻳﺔ ﺍﻟﻤﺰﺩﻭﺝ ﻳﻌﺘﺒﺮ ﺍﺧﺘﻴﺎﺭ ﺟﻴﺪ ﺑﺎﺳﺘﺨﺪﺍﻡ ﻃﺒﻖ ﺻﻐﻴﺮ ﺍﻟﺤﺠﻢ ﺑﺪﻭﻥ Ku- ﻭC ﻓﻰ ﺣﺎﻟﺔ ﺍﺳﺘﻘﺒﺎﻝ ﺃﻗﻤﺎﺭ . Ku-band ﺇﻟﻐﺎء ﺍﺳﺘﻘﺒﺎﻝ . ﺍﻟﻘﻮﻳﺔband TECHNIC DATA Model CKU Digital LNBF Function C/Ku-Band Combifeed Manufacturer Infosat Intertrade Co., Ltd., 46/22 Moo. 5, Tiwanon Road, Baanmai, Pakkred, Nonthaburi, Thailand Homepage www.infosats.com Email niran@infosats.com Input Frequency Range Ku: 10.7~11.7 GHz/ 11.7~12.75 GHz linear/circular C: 3.4~4.2 GHz linear/circular L.O. Frequency Ku: 9.75GHz / 10.6GHz C: 5.150 GHz Conversion Gain 65 dB Band Switching 22 KHz Polarization Switching 14/18V C/KU-Band Switching DiSEqC Noise Figure 0.3 db (Typ.) Output Connectors 75 Ohm F Type ﺑﻌﺾ ﺍﻷﻣﺜﻠﺔ ﻟﻘﻨﻮﺍﺕ ﺍﻟﺘﻰC-Band ﺗﻢ ﺍﺳﺘﻘﺒﺎﻟﻬﺎ ﺑﺒﻮﻕ C/ ﺍﻟﺘﻐﺬﻳﺔ ﺍﻟﻤﺰﺩﻭﺝ Ku-Band ﻋﻨﺪ 5 ﺩﺭﺟﺔ ﻏﺮﺏRTG1 ﻗﻨﺎﺓ ﻋﻨﺪ 5.72 ﺩﺭﺟﺔ ﻏﺮﺏVOA ﻗﻨﺎﺓ ﻋﻨﺪ5.04 ﺩﺭﺟﺔﻏﺮﺏTV Centroﻗﻨﺎﺓ 40.5 ﻋﻨﺪRede Gospel ﻗﻨﺎﺓ ﻋﻨﺪ 22 ﺩﺭﺟﺔTV5 Africa ﻗﻨﺎﺓ ﺩﺭﺟﺔ ﻏﺮﺏ ﻏﺮﺏ ﻋﻠﻰ ﺍﻟﻘﻤﺮHope Channel ﻗﻨﺎﺓ ﺍﻟﻘﻨﻮﺍﺕ ﺍﻟﺮﻭﺳﻴﺔ ﻋﻨﺪ 04 ﺩﺭﺟﺔ ﻋﻨﺪ 86 ﺩﺭﺟﺔ ﺷﺮﻕINTELSAT7 ﺷﺮﻕ
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