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- 1. TEST REPORT DiSEqC Switch EMP P.168-W ﺳﻮﻳﺘﺶ DiSEqCﻟﻨﻈﺎﻡ ﺍﻷﻃﺒﺎﻕ ﺍﻟﻤﺘﺤﺮﻙ : ﺳﻮﻳﺘﺶ 1 ) ، ( A/Bﺳﻮﻳﺘﺶ 2 ﺍﻟﺘﺤﻜﻢ ﻓﻰ ﻋﻤﻠﺔ ﻋﻦ ﻃﺮﻳﻖ ﺃﻭﺍﻣﺮ ﺃﻳﻀﺎ ، ﻭ ﺑﺎﻟﻄﺒﻊ ﺳﻮﻑ ﺗﺤﺘﺎﺝ ﺇﻟﻰ DiSEqC ﺑﺮﻭﺗﻮﻛﻮﻝ ﺇﻥ ) ، ( A/Bﺳﻮﻳﺘﺶ 3 ) ( A/Bﻭ 1 " DiSEqC 1.1 " Write Nﻭ ﻓﺼﻞ ﺑﻴﻦ ﻛﻮﺍﺑﻞ ﺍﺳﺘﻘﺒﺎﻝ ﺍﻷﻗﻤﺎﺭ ﺍﻹﺻﺪﺍﺭ 0.1 ﻭ 1.1 ﻳﺴﺘﺨﺪﻡ ﻟﻠﺘﻨﻘﻞ ﺳﻮﻳﺘﺶ 4 ). ( A/B ﺍﻟﺘﻲ ﻳﻤﻜﻦ ﻣﻦ ﺧﻼﻟﻬﺎ ﺍﺧﺘﻴﺎﺭ ﻣﺨﺮﺝ ﺍﻟﺼﻨﺎﻋﻴﺔ ﻭ ﻛﺎﺑﻞ ﺍﺳﺘﻘﺒﺎﻝ ﺍﻹﺭﺳﺎﻝ ﺑﻴﻦ ﻭﺣﺪﺍﺕ ﺧﻔﺾ ﺍﻟﺸﻮﺷﺮﺓ LNB ﻭ ﺇﺫﺍ ﻛﻨﺖ ﻻ ﺗﻜﺘﻔﻲ ﺑﺎﺳﺘﻘﺒﺎﻝ ﻭﺍﺣﺪ ﻣﻦ ﺛﻤﺎﻧﻴﺔ " uncommitted ﺍﻷﺭﺿﻲ ﺑﻌﺪ ﺗﻤﺮﻳﺮﺓ ﻣﻦ ﺍﻟﻨﺎﻓﺬﺓ ﺃﻭ ، ﻭ ﺑﺮﻭﺗﻮﻛﻮﻝ DiSEqCﺍﻹﺻﺪﺍﺭ ﺛﻤﺎﻧﻴﺔ ﺃﻗﻤﺎﺭ ﺻﻨﺎﻋﻴﺔ ﻓﻴﻤﻜﻦ ﺯﻳﺎﺩﺓ ) " switchesﻭ ﻫﻮ ﺧﺎﺹ ﺑﺎﻝ ﺍﻟﺠﺪﺍﺭ . 2.1 ﻭ 3.1 ﺍﻟﻤﺴﻤﻰ )USALS ﻧﻈﺎﻡ ﺍﻟﺘﻮﺯﻳﻊ ﺑﺎﺳﺘﺨﺪﺍﻡ ﺳﻮﻳﺘﺶ ( DiSEqCﻭ ﻳﻤﻜﻦ ﺗﺴﻤﻴﺔ ﺫﻟﻚ ﺇﻥ ﻭ ﻟﻜﻦ ﺩﻋﻨﺎ ﻧﻘﻮﻝ ﺷﺊ ﻋﻦ ﺇﻣﻜﺎﻧﻴﺔ ( ﻟﻠﺘﺤﻜﻢ ﻓﻰ ﺍﻟﻤﻮﺍﺗﻴﺮ ﺍﻟﺘﻲ ﺗﻌﻤﻞ 0.1 ، DiSEqCﻭ ﺣﻴﺚ ﺃﻥ ﺳﻮﻳﺘﺶ ﺃﻭﺍﻣﺮ DiSEqCﺍﻟﺘﺎﻟﻴﺔ ﺍﻟﻤﺴﺘﺨﺪﻣﺔ ﺍﻟﺘﺤﻜﻢ ﻓﻰ ﺍﻟﺴﻮﻳﺘﺶ ﺍﻟﺬﻱ ﻳﻤﻜﻦ ﺑﻨﻈﺎﻡ ، DiSEqCﻫﻞ ﻫﺬﺍ ﺻﺤﻴﺢ P.168-Wﻳﺘﺠﺎﻭﺏ ﻓﻘﻂ ﻣﻪ ﺃﻭﺍﻣﺮ 1.1 ، DiSEqCﻓﻌﻨﺪ ﺍﺯﺩﻭﺍﺝ ﺍﻟﻨﻈﺎﻡ ﻳﻤﻜﻦ ﺍﻟﺤﺼﻮﻝ ﻋﻠﻰ 23 ﻣﺪﺧﻞ ﺇﺷﺎ ﺭﺍﺕ ﻟﻮﺣﺪﺍﺕ ﺧﻔﺾ ﺍﻟﺸﻮﺷﺮﺓ ) 4×8( ﻭ ﻃﺒﻴﻌﻴﺎ ﻳﺠﺐ ﺃﻥ ﻳﻜﻮﻥ ﺟﻬﺎﺯ ﺍﻟﺮﻳﺴﻴﻔﺮ ﺍﻟﻤﺴﺘﺨﺪﻡ ﻣﺘﻮﺍﻓﻖ ﻣﻊ ﺑﺮﻭﺗﻮﻛﻮﻝ DiSEqCﺍﻹﺻﺪﺍﺭ 0.1 . ﻭ 1.1 ﻭ ﻟﻜﻦ ﺩﻋﻨﺎ ﻧﺮﻛﺰ ﻋﻠﻰ ﻋﺪﺩ 8 ﻣﺪﺍﺧﻞ ﺇﺷﺎ ﺭﺍﺕ ، ﻓﻔﻲ ﺍﻟﻮﺍﻗﻊ ﻟﻴﺲ ﺟﻤﻴﻊ ﺃﺟﻬﺰﺓ ﺍﻟﺮﻳﺴﻴﻔﺮ ﺗﺪﻋﻢ 1-017002/1 ﺑﺮﻭﺗﻮﻛﻮﻝ 1.1 DiSEqCﻓﺈﺫﺍ ﻛﺎﻥ EMP P.168-W A very smart switching device with ﺟﻬﺎﺯ ﺍﻟﺮﻳﺴﻴﻔﺮ ﺍﻟﺬﻱ ﺗﻤﺘﻠﻜﻪ ﻣﺠﻬﺰ superior performance ﻓﻘﻂ ﺑﺒﺮﻭﺗﻮﻛﻮﻝ 0.1 ، DiSEqC ﻓﺎﻥ ﺳﻮﻳﺘﺶ P.168-Wﻏﻴﺮ ﻣﻨﺎﺳﺐ ﻟﻚ ، ﻭ ﻟﻜﻦ ﺇﺫﺍ ﻛﺎﻥ ﺍﻟﺮﻳﺴﻴﻔﺮ ﻳﺪﻋﻢ ﺑﺮﻭﺗﻮﻛﻮﻝ 2.1 DiSEqCﻓﻴﻤﻜﻦ ﺍﺳﺘﺨﺪﺍﻡ ﻫﺬﺍ ﺍﻟﺴﻮﻳﺘﺶ ﺑﻜﻞ ﺳﻬﻮﻟﻪ ، ﻭ ﻫﻨﺎ ﻳﻮﺟﺪ ﺍﻟﺴﺤﺮ ﻓﻰ ﻫﺬﺍ ﺍﻟﻤﻨﺘﺞ ! ﻃﺒﻴﻌﻴﺎ ﺗﺴﺘﺨﺪﻡ ﺃﻭﺍﻣﺮ DiSEqC 2.1 ﻟﺘﺤﺮﻳﻚ ﺍﻟﻤﻮﺍﺗﻴﺮ ﻟﻠﺸﺮﻕ ﺃﻭ .Figure 1. The principle of operation of P.168-W ؟ ﻧﻌﻢ ﺻﺤﻴﺢ ﻟﻠﺠﻤﻴﻊ ﻭ ﻟﻜﻦ ﻟﻴﺲ .Figure 2. Signal loss versus frequency for different inputs ﻟﺸﺮﻛﺔ ! EMP-Centauriﺇﻥ ﺷﺮﻛﺔ EMP-Centauriﻫﻲ ﺷﺮﻛﺔ ﻛﺒﻴﺮﺓ ﻟﺘﺼﻨﻴﻊ ﺍﻟﺴﻮﻳﺘﺸﺎﺕ ﺍﻟﻤﺘﻌﺪﺩﺓ ﻭ ﺳﻮﻳﺘﺸﺎﺕ EMP-Centauriﻭ ﻛﻤﺎﻟﻴﺎﺗﻬﺎ ، ﺣﻴﺚ ﻗﺎﻣﺖ ﺍﻟﺸﺮﻛﺔ ﺑﻌﻤﻞ ﺳﻮﻳﺘﺶ P.168-Wﻳﻤﻜﻨﻪ ﺍﻟﺘﺤﻜﻢ ﻓﻰ ﺃﻭﺍﻣﺮ 1.1 DiSEqCﻭ 2.1 . ! DiSEqC ﺃﻭﻝ ﺷﺊ ﺟﻴﺪ ﺑﺎﻟﻨﺴﺒﺔ ﻟﻬﺬﺍ ﺍﻟﺴﻮﻳﺘﺶ ﺗ ﺮﺍﻩ ﻋﻨﺪ ﻓﺘﺢ ﻋﺒﻮﺓ ﺍﻟﺴﻮﻳﺘﺶ ﻷﻭﻝ ﻣﺮﺓ ، ﺇﻥ ﻫﺬﺍ ﺍﻟﺴﻮﻳﺘﺶ ﻳﻤﻜﻦ ﺗﺮﻛﻴﺒﺔ ﺧﺎﺭﺟﻴﺎ ﺣﻴﺚ ﺍﻧﻪ ﻣﺤﻤﻰ ﻭ ﻣﻌﺰﻭﻝ ﺟﻴﺪﺍ ﻭ ﺟﻤﻴﻊ ﺍﻟﻤﻮﺻﻼﺕ ﺍﻟﺘﻲ ﺗﻮﺟﺪ ﺑﻪ ﺑﺎﻟﺠﺎﻧﺐ ﺍﻟﺴﻔﻠﻲ ﻭ ﻫﺬﺍ ﻳﻌﻨﻰ ﺍﻧﻪ ﻳﻤﻜﻦ ﻣﻦ ﺧﻼﻝ ﻧﺎﻓﺪﺓ ﻭﺍﺣﺪﺓ ﻳﻤﻜﻦ ﺍﺳﺘﻘﺒﺎﻝ ﺣﺘﻰ ﻋﺪﺩ 8 ﺃﻃﺒﺎﻕ ﻭ ﺑﺎﻹﺿﺎﻓﺔ ﺇﻟﻰ ﺫﻟﻚ ﻳﻤﻜﻦ ﺗﻤﺮﻳﺮ ﺇﺷﺎ ﺭﺍﺕ ﺍﺳﺘﻘﺒﺎﻝ ﺍﻹﺭﺳﺎﻝ ﺍﻷﺭﺿﻲ 1-01 — 48 TELE-satellite & Broadband 1/2007 — www.TELE-satellite.com
- 2. 2 ﻭ ﻫﻜﺬﺍ ، ﻭ ﻟﻘﺪ ﻗﻤﻨﺎ ﺑﻔﺤﺺ ﻫﺬﺍ ﺇﻟﻰ ﺍﻟﻐﺮﺏ " ﻓﺎﻥ ﺍﻟﺮﻳﺴﻴﻔﺮ ﺳﻮﻑ ﺍﻷﺣﻴﺎﻥ ﺗﻜﻮﻥ " ﺧﻄﻮﺓ ﺗﺠﺎﻩ ﺍﻟﺸﺮﻕ ﻟﻠﻐﺮﺏ ، ﻓﻰ ﻗﺎﺋﻤﺔ ﺍﻟﺘﺮﻛﻴﺐ ﻳﻮﺟﺪ ﺍﻟﻨﻈﺎﻡ ﻭ ﻗﻤﻨﺎ ﺑﺘﻜ ﺮﺍﺭ ﻫﺬﻩ ﺍﻟﻌﻤﻠﻴﺔ ﻓﻰ ﻳﺼﺪﺭ ﺃﻭﺍﻣﺮ ﻟﺘﺤﺮﻳﻚ ﺍﻟﻤﻮﺗﻮﺭ ﺇﻟﻰ " ﻭ " ﺧﻄﻮﺓ ﺗﺠﺎﻩ ﺍﻟﻐﺮﺏ " ﻭ ﺍﻵﻥ ﺇﺫﺍ ﺃﻭﺍﻣﺮ ﻣﺜﻞ " ﺍﺫﻫﺐ ﺇﻟﻰ ﻧﻘﻄﺔ ﺍﻟﺼﻔﺮ ﻛﻠﻰ ﺍﻻﺗﺠﺎﻫﻴﻦ : ﺍﻟﺸﺮﻕ ﻭ ﺍﻟﻐﺮﺏ ﻭ ﺍﻟﻐﺮﺏ ﺑﺨﻄﻮﺍﺕ ﻗﻠﻴﻠﺔ . ﺇﻥ ﺍﻟﺴﻮﻳﺘﺶ ﺗﻢ ﺍﻟﻀﻐﻂ ﻋﻠﻰ " " ، " ﺍﺫﻫﺐ ﺇﻟﻲ ﺍﻟﻐﺮﺏ " ﻭ " ﻟﻢ ﺗﺤﺪﺙ ﺃﻱ ﻣﺸﺎﻛﻞ ﻋﻠﻰ ﺍﻹﻃﻼﻕ P.168-Wﻣﺼﻤﻢ ﺑﻨﻔﺲ ﺍﻟﻄﺮﻳﻘﺔ ﺍ ﺫ ﻫﺐ ﺍﺫﻫﺐ ﺇﻟﻰ ﺍﻟﺸﺮﻕ " ﻟﻜﻲ ﺗﻌﻠﻢ ﺟﻬﺎﺯ ﺍﻟﺮﻳﺴﻴﻔﺮ ﻛﻴﻒ ﻟﻠﺘﻌﺮﻑ ﻋﻠﻰ " ﻣﻮﻗﻊ ﺍﻟﻤﻮﺗﻮﺭ " ﻭ ﻭ ﻓﻰ ﺑﻌﺾ ﻳﺘﺤﻜﻢ ﻓﻰ ﺍﻟﺴﻮﻳﺘﺶ ، P.168-Wﻗﻢ ﻳﻘﻮﻡ ﺑﺎﻟﺘﺤﻮﻝ ﺑﻴﻦ ﺍﻟﻤﻮﺍﺗﻴﺮ ﺑﺎﻟﺘﻨﺎﻭﺏ ﺑﺘﻮﺻﻴﻞ ﻭﺣﺪﺓ ﺧﻔﺾ ﺍﻟﺸﻮﺷﺮﺓ ﺇﻟﻰ ﻛﻤﺎ ﻳﻤﻜﻦ ﺗﻮﺿﻴﺤﻪ ﻓﻰ ﺍﻟﺸﻜﻞ ﻣﺪﺧﻞ ﻣﻦ ﻣﺪﺍﺧﻞ ﺍﻟﺴﻮﻳﺘﺶ ، ﺍﺫﻫﺐ ﺭﻗﻢ 1 . ﺇﻟﻲ ﻗﺎﺋﻤﺔ ﺍﻟﺘﺮﻛﻴﺐ ﺍﻟﺘﻲ ﺑﻬﺎ ﺍﻟﻘﻤﺮ ﻛﻤﺜﺎﻝ ، ﺇﺫﺍ ﻗﻤﻨﺎ ﺍﻟﺼﻨﺎﻋﻲ ﺍﻟﻤﺴﺘﻘﺒﻞ ﺑﻨﻈﺎﻡ ﻣﻮﺍﺗﻴﺮ ﺍﻟﻄﺒﻖ ﺑﺘﺤﺮﻳﻚ ﻣﺘﺤﺮﻙ 2.1 ، DiSEqCﻭ ﺍﺑﺪﺃ ﺇﻟﻰ ﺑﺎﺳﺘﻤ ﺮﺍﺭ ﻓﻰ ﺗﺤﺮﻳﻚ ﺍﻟﻄﺒﻖ ﺳﻮﺍء ﺇﻟﻰ ﺍﻟﺸﺮﻕ ﻓﺒﻌﺪ ﺍﻟﻐﺮﺏ ﺃﻭ ﺇﻟﻰ ﺍﻟﻐﺮﺏ ﻭ ﺑﻌﺪ ﻟﺤﻈﺎﺕ ﻗﻠﻴﻠﺔ ﻟﺤﻈﺎﺕ ﻓﺎﻥ ﺳﻮﻑ ﺗﻼﺣﻆ ﻭﺟﻮﺩ ﺇﺷﺎﺭﺓ ﻭ ﺑﻌﺪ ﺫﻟﻚ ﺍ ﻟﺴﻮ ﻳﺘﺶ ﺍﺭﻓﻊ ﻳﺪﻙ ﻋﻦ ﺯﺭ ﺍﻟﺘﺤﺮﻳﻚ ﻭ ﻗﻢ ﺑﺤﻔﻆ ﺭﻗﻢ 1 ﺳﻮﻑ ﻣﻮﻗﻊ ﺍﻟﻘﻤﺮ ﻭ ﻣﻦ ﻫﺬﻩ ﺍﻟﻠﺤﻈﺔ ﻓﺎﻥ ﻳﻌﻤﻞ ﻭ ﺑﻌﺪ ﺟﻬﺎﺯ ﺍﻟﺮﻳﺴﻴﻔﺮ ﺳﻮﻑ ﻳﺘﺬﻛﺮ ﻛﻴﻒ ﻟﺤﻈﺎ ﺕ ﻳﻘﻮﻡ ﺑﺎﻟﺘﻨﻘﻞ ﺑﻴﻦ ﺍﻷﻗﻤﺎﺭ ﻋﻦ ﻃﺮﻳﻖ ﻑ ﺳﻮ ﺃﻭﺍﻣﺮ 2.1 ، DiSEqCﻭ ﻗﻢ ﺑﺘﻜ ﺮﺍﺭ ﻳﻐﻠﻖ ﻫﺬﻩ ﺍﻟﻌﻤﻠﻴﺔ ﻟﺒﻘﻴﺔ ﻣﺪﺍﺧﻞ ﻭﺣﺪﺍﺕ ﻳﺒﺪﺃ ﻭ ﺧﻔﺾ ﺍﻟﺸﻮﺷﺮﺓ ﺍﻟﻤﻮﺻﻠﺔ ﺑﻤﺪﺍﺧﻞ ﺍ ﻟﺴﻮ ﻳﺘﺶ ﺍﻟﺴﻮﻳﺘﺶ . 2 ﺭﻗﻢ ﻭ ﻋﻨﺪ ﻓﻬﻤﻚ ﻟﻄﺮﻳﻘﺔ ﺍﻟﺘﺤﻜﻢ ﻓﻰ ﺑﺎﻟﻌﻤﻞ ﻭ ﺃﻭﺍﻣﺮ 2.1 DiSEqCﻓﺎﻧﻚ ﻻﻥ ﻫﻜﺬﺍ ﺇﻟﻰ ﺗﺮﻏﺐ ﻓﻰ ﺍﻟﻌﻮﺩﺓ ﺇﻟﻰ ﺃﻭﺍﻣﺮ DiSEqC ﺁﺧﺮﻩ ، ﻭ ﺍﻟﺘﻘﻠﻴﺪﻳﺔ ﻣﺜﻞ ﻣﻮﻗﻊ ﺍﻟﻘﻤﺮ ) ( A/Bﺃﻭ ﺑﻌﺪ ﺍﻟﻮﺻﻮﻝ ﺧﻴﺎﺭ ) ( A/Bﻭ ﺍﻟﺘﻲ ﺗﺮﺑﻚ ﺍﻟﻤﺴﺘﺨﺪﻡ ﺇﻟﻲ ﺍﻟﺴﻮﻳﺘﺶ ﺍﻟﻌﺎﺩﻱ . ﺭﻗﻢ 8 ﺳﻮﻑ ﻛﻢ ﻫﻲ ﺳﺮﻋﺔ ﺍﻟﺘﻨﻘﻞ ﺑﻴﻦ ﺍﻷﻗﻤﺎﺭ ﻳﻌﻤﻞ ﺍﻟﺴﻮﻳﺘﺶ ؟ ﺑﺎﻟﻤﻘﺎﺭﻧﺔ ﻣﻊ ﻧﻈﺎﻡ ﺗﺤﺮﻳﻚ ﺃﻃﺒﺎﻕ ﺭﻗﻢ 1 ﻣﺮﺓ ﺃﺧﺮﻯ ﻭ ﺣﻘﻴﻘﻲ ؟ ﺑﺎﻟﻄﺒﻊ ﻻ ! ﺇﻥ ﺍﻟﺘﺤﻮﻝ ﺑﻌﺪﻫﺎ ﺍﻟﺴﻮﻳﺘﺶ ﺭﻗﻢ
- 3. TELE-satellite World www.TELE-satellite.com/... Download this report in other languages from the Internet: Arabic ﺍﻟﻌﺮﺑﻴﺔ www.TELE-satellite.com/TELE-satellite-0711/ara/emp.pdf Indonesian Indonesia www.TELE-satellite.com/TELE-satellite-0711/bid/emp.pdf Bulgarian Български www.TELE-satellite.com/TELE-satellite-0711/bul/emp.pdf German Deutsch www.TELE-satellite.com/TELE-satellite-0711/deu/emp.pdf English English www.TELE-satellite.com/TELE-satellite-0711/eng/emp.pdf Spanish Español www.TELE-satellite.com/TELE-satellite-0711/esp/emp.pdf French Français www.TELE-satellite.com/TELE-satellite-0711/fra/emp.pdf Greek Ελληνικά www.TELE-satellite.com/TELE-satellite-0711/hel/emp.pdf Croatian Hrvatski www.TELE-satellite.com/TELE-satellite-0711/hrv/emp.pdf Italian Italiano www.TELE-satellite.com/TELE-satellite-0711/ita/emp.pdf Hungarian Magyar www.TELE-satellite.com/TELE-satellite-0711/mag/emp.pdf Mandarin 中文 www.TELE-satellite.com/TELE-satellite-0711/man/emp.pdf Dutch Nederlands www.TELE-satellite.com/TELE-satellite-0711/ned/emp.pdf Side view of the EMP P.168-W DiSEqC Polish Polski www.TELE-satellite.com/TELE-satellite-0711/pol/emp.pdf 1.1/1.2 switch Russian Русский www.TELE-satellite.com/TELE-satellite-0711/rus/emp.pdf Turkish Türkçe www.TELE-satellite.com/TELE-satellite-0711/tur/emp.pdf Afbeelding 3. ﻳﺘﻢ ﻓﻮﺭﺍ ﻓﻘﻂ ﻓﻰ ﺃﺟ ﺰﺍء ﻣﻦ ﺍﻟﺜﺎﻧﻴﺔ ﻭ ﻟﻦ ﺗﻼﺣﻆ ﺃﻱ ﻓﺮﻕ ﻓﻰ ﺍﻟﺘﻨﻘﻞ ﺑﻴﻦ ﺍﻟﻘﻨﻮﺍﺕ ﻓﻰ ﺍﻟﻘﻤﺮ ﺍﻟﻮﺍﺣﺪ ﺃﻭ ﻓﻰ .! ﻟﻸﻗﻤﺎﺭ ﺍﻟﻤﺨﺘﻠﻔﺔ ﻭ ﻋﻨﺪ ﺍﻟﻘﻴﺎﻡ ﺑﻔﺤﺺ ﻋﻤﻠﻴﺔ ﺍﻟﺘﺮﻛﻴﺐ ﻭ ﺳﺮﻋﺔ ﺍﻟﺘﻨﻘﻞ ﺑﻴﻦ ﺍﻷﻗﻤﺎﺭ ﺍﻧﺘﻘﻠﻨﺎ ، ﺇﻟﻰ ﺍﻟﻤﻮﺍﺻﻔﺎﺕ ﺍﻟﻜﻬﺮﺑﻴﺔ ﻟﻠﺴﻮﻳﺘﺶ ﻓﻘﻂ ﻗﻤﻨﺎ ﺑﻘﻴﺎﺱ ﻣﺴﺘﻮﻯ ﻓﻘﺪﺍﻥ ﺍﻹﺷﺎﺭﺓ ﻳﻌﻤﻞP.168-W ، ﺇﻥ ﺍﻟﺴﻮﻳﺘﺶ ﺑﺘﻤﺮﻳﺮ ﺍﻹﺷﺎ ﺭﺍﺕ ﺑﻄﺮﻳﻘﺔ ﺳﻠﺒﻴﺔ ﻓﻬﻮ ﻻ ﻳﻘﻮﻡ ﺑﺘﻜﺒﻴﺮ ﺍﻹﺷﺎﺭﺓ ﻭ ﻟﻜﻦ ﻳﻘﻮﻡ ﻓﻘﻂ ﺑﺈﺿﻌﺎﻓﻬﺎ ، ﻭ ﻃﺒﻘﺎ ﻟﻠﻤﻮﺍﺻﻔﺎﺕ ﻓﺎﻥ ﻣﻘﺪﺍﺭ ﺍﻟﻔﻘﺪ ﻓﻰ ﺍﻹﺷﺎﺭﺓ 5 ﺩﻳﺴﻴﺒﻞ ﻭ ﻫﻮ ﻳﻌﺘﺒﺮ ﺟﻴﺪ ﻟﻠﺤﺰﻣﺔ ﺍﻟﻤﻨﺨﻔﻀﺔ ﻭ ﺳﻴﺌﺔ ﻟﻠﺤﺰﻣﺔL-band ﻣﻦ ﺍﻟﻤﺮﺗﻔﻌﺔ ، ﻭ ﻟﻬﺬﺍ ﻟﻢ ﻳﻜﻦ ﺿﺮﻭﺭﻳﺎ ﻟﻔﺤﺺ ﺍﻟﺤﺰﻡ ﺍﻟﻤﺨﺘﻠﻔﺔ ﺃﻭ ﺍﻷﻗﻄﺎﺏ ﺣﻴﺚ ﺃﻥ ﻛﻞ ﻣﺨﺮﺝ ﻣﻦ ﻭﺣﺪﺓ ﺧﻔﺾ ﺷﻮﺷﺮﺓ ﻳﻌﻤﻞ ﻋﻠﻰ ﺗﺮﺩﺩ ﻭﺳﻴﻂ ﻣﻦ . ﻣﺪﻯ059~0512 ﻣﻴﺠﺎﻫﻴﺮﺗﺰ ﻭ ﻟﻬﺬﺍ ﺍﻟﺤﺪ ﻓﺎﻥ ﺍﻷﻣﺮ ﺟﻴﺪ ﻭ ﺣﻴﺚ ﺃﻥ ﻓﻘﺪﺍﻥ ﺍﻹﺷﺎﺭﺓ ﻟﻴﺲ ﺑﺎﻷﻣﺮ ﺍﻟﻬﺎﻡ ﺑﺎﻟﻨﺴﺒﺔ ﻟﻠﺴﻮﻳﺘﺶ ﻓﻠﻘﺪ ﺭﻛﺰﻧﺎ ﻋﻠﻰ ﺃﺩﺍء ﺍﻟﻀﻮﺿﺎء ، ﻛﻴﻒ ﺗﺘﺄﺛﺮ ﺟﻮﺩﺓ ﺍﻹﺷﺎﺭﺓ ﻋﻨﺪ ﻣﺮﻭﺭﻫﺎ ﻣﻦ ﻫﺬﺍ ﺍﻟﺴﻮﻳﺘﺶ ؟ ﻭ ﻟﺘﻘﻴﻴﻢ ﻫﺬﺍ ﻗﻤﻨﺎ ﺑﻘﻴﺎﺱ ﻣﻌﺪﻝ ﺧﻄﺄ ﺍﻟﻨﺒﻀﺎﺕ ﻋﻨﺪ ﺗﻮﺻﻴﻞ ﻭﺣﺪﺓ ﺧﻔﺾ ﺍﻟﺸﻮﺷﺮﺓ ﻣﺒﺎﺷﺮﺓ ﻣﻊ ﺟﻬﺎﺯ ﺍﻟﻘﻴﺎﺱ ﻭ ﻋﻨﺪ ﺗﻮﺻﻴﻠﻬﺎ ﻣﻦ ﺧﻼﻝ ﺃﺣﺪ ﻣﺪﺍﺧﻞ ﺍﻟﺴﻮﻳﺘﺶ ، ﻭ ﻗﻤﻨﺎ ﺑﺎﺧﺘﺒﺎﺭ ﺍﻟﺜﻤﺎﻧﻴﺔ ﻣﺪﺍﺧﻞ ﻭ ﻛﺎﻧﺖ ﺍﻟﻨﺘﻴﺠﺔ ﺟﻴﺪﺓ ﺟﺪﺍ ﺑﺸﻜﻞ ﻣﺪﻫﺶ ! ﻛﻤﺎ ﺗ ﺮﺍﻫﺎ ﻓﻰ ﺍﻟﺸﻜﻞ ﺭﻗﻢ 3 ﺣﻴﺚ ﻳﻮﺟﺪ ﺟﻤﻊ ﺑﻴﻦ ﺍﻟﺘﺮﺩﺩﺍﺕ ﺍﻟﻤﺨﺘﻠﻔﺔ ﻭ ﻣﺪﺧﻞ ﺍﻟﺘﺮﺩﺩﺍﺕ ﻭ ﻟﻢ ﺗﺘﺄﺛﺮ ﺟﻮﺩﺓ ﺍﻹﺷﺎﺭﺓ ! ﻭ ﻓﻰ ﺃﺳﻮء ﺍﻟﺤﺎﻻﺕ ﻛﻞ ﺍﻟﻔﻘﺪ ﺍﻗﻞ ﻣﻦ 2 ﺩﻳﺴﻴﺒﻞ ، ﻭ ﻫﺬﺍ ﺃﻣﺮMER ﻓﻰ 2 ﺟﻴﺪ ! ﻭ ﻓﻰ ﺃﺛﻨﺎء ﺍﻻﺧﺘﺒﺎﺭ ﻛﺎﻥ ﺍﻟﻤﺪﺧﻞ ﺭﻗﻢ . ، 7 ﻭ 8 ﺃﻋﻄﺖ ﺍﻓﻀﻞ ﺍﻟﻨﺘﺎﺋﺞ ﺗﻌﻠﻴﻖ ﺍﻟﺨﺒﺮﺍء + ﻫﻮ ﺳﻮﻳﺘﺶEMP P.168-W ﺇﻥ ﺍﻟﺴﻮﻳﺘﺶ TECHNIC ، ﻭ ﻫﻮ ﻟﻴﺲ ﻓﻘﻂDiSEqC 1.1/1.2 ﺟﻴﺪ ﻟﻞ DATA ﺳﻬﻞ ﺍﻟﺘﺮﻛﻴﺐ ﻭ ﺍﻻﺳﺘﺨﺪﺍﻡ ﻭ ﻟﻜﻨﻪ ﻣﺘﻮﺍﻓﻖ ﻣﻊ ﺃﺟﻬﺰﺓ Manufacturer EMP-Centauri, Czech Republic ﺃﻭ 2.1 ﻭDiSEqC 1.1 ﺍﻟﺮﻳﺴﻴﻔﺮ ﺍﻟﺘﻲ ﺗﺪﻋﻢ Internet www.emp-centauri.cz ﺃﺩﺍءﻩ ﺍﻟﻜﻬﺮﺑﻲ ﻣﻤﺘﺎﺯ ﺟﺪﺍ ! ﻭ ﻓﻰ ﺑﻌﺾ ﺍﻟﻤﺪﺍﺧﻞ ﻟﻢ Peter Miller Fax +420-376-323-809 ﻧﻜﻦ ﻗﺎﺩﺭﻳﻦ ﻋﻠﻰ ﺍﻛﺘﺸﺎﻑ ﺃﻱ ﺗﻐﻴﻴﺮ ﻓﻰ ﺟﻮﺩﺓ ﺍﻹﺷﺎﺭﺓ TELE-satellite Test Center Model P.168-W ﺑﺎﻟﺮﻏﻢ ﻣﻦ ﺍﺳﺘﺨﺪﺍﻡ ﻭﺣﺪﺓ ﻗﺎﻳﺲ ﺍﺣﺘﺮﺍﻓﻴﺔ ﻭ ﻟﻴﺲ Poland Function 8+1 inputs DiSEqC 1.1/1.2 switch . ﺟﻬﺎﺯ ﺭﻳﺴﻴﻔﺮ ﺗﺠﺎﺭﻯ ﻋﺎﺩﻯ ﻟﻼﺧﺘﺒﺎﺭ Frequency range 5-2300 MHz Control DiSEqC 1.1, 1.2 - Insertion Loss Sat inputs: 5dB avg.; Terr. input: 3 dB avg. ﻣﻦ ﺍﻟﺼﻌﺐ ﺗﻮﺻﻴﻞ ﺍﻟﻜﻮﺍﺑﻞ ﺣﻴﺚ ﺃﻥ ﺍﻟﻤﻮﺻﻼﺕ ﻗﺮﻳﺒﺔ ﺟﺪﺍ ﻣﻦ Isolation 30 dB avg. ﺑﻌﻀﻬﺎ ﻭ ﺃﻳﻀﺎ ﺇﺫﺍ ﺍﺳﺘﻄﻌﻨﺎ ﺗﻐﻴﻴﺮ ﻟﻮﻥ ﻏﻄﺎء ﺍﻟﺴﻮﻳﺘﺶ ﺣﻴﺚ ﺃﻥ ﻫﺬﺍ LNB current 400 mA max. ﺍﻟﺴﻮﻳﺘﺶ ﻣﻌﺪ ﻟﻼﺳﺘﺨﺪﺍﻡ ﺧﺎﺭﺟﻴﺎ ﻓﻠﻤﺎﺫﺍ ﻻ ﻳﻜﻮﻥ ﺍﻟﻐﻄﺎء ﺭﻣﺎﺩﻳﺎ ﺃﻭ Current drawn 50 mA max. .ﺍﺑﻴﺾ ؟ Dimensions (w,d,h) 112.3 x 112.3 x 48.3 mm Temperature range -30°C~+70°C 50 TELE-satellite & Broadband — 10-1 1/2007 — www.TELE-satellite.com