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    Infosat Infosat Document Transcript

    • ‫‪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
    • ‫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
    • ‫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
    • ‫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