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‫‪TEST REPORT‬‬                  ‫‪Big Dish for Ku-Band‬‬




        ‫ﻃﺒﻖ 041‪ P‬ﻣﻦ ﺷﺮﻛﺔ‬
           ‫‪Pasat Anteny‬‬
          ‫ﻃﺒﻖ ﻣﻀﺒﻮﻁ ﺍﻟﺒﺆﺭﺓ‬
        ‫ﻻﺳﺘﻘﺒﺎﻝ ‪Ku-Band‬‬

       ‫ﻋﻨﺪﻣﺎ ﺍﺳﺘﻠﻤﻨﺎ ﺍﻟﻄﺮﺩ ﻟﻢ ﻧﻜﻦ ﻧﻌﺮﻑ ﻣﺤﺘﻮﻳﺎﺗﻪ ، ﻓﻘﺪ ﺃﺗﻰ ﺇﻟﻴﻨﺎ‬
     ‫ﺻﻨﺪﻭﻕ ﺧﺸﺒﻲ ﺿﺨﻢ ﻳﻮﺯﻥ 69 ﻛﻴﻠﻮ ﺟﺮﺍﻡ ﻭ ﺍﻟﺬﻯ ﺍﺣﺘﻞ ﻧﺼﻒ‬
  ‫ﺣﺠﻢ ﺍﻟﺠﺮﺍﺝ ، ﻭ ﺑﻌﺪ ﻓﺤﺺ ﺍﻷﻭﺭﺍﻕ ﺍﻟﺘﻰ ﺃﺗﺖ ﻣﻊ ﺍﻟﻄﺮﺩ ﻭﺟﺪﺕ ﺍﻧﻪ‬
   ‫ﻓﻌﻼ ﻣﺮﺳﻞ ﺇﻟﻰ ﻣﺮﻛﺰ ﺍﺧﺘﺒﺎﺭ ﻣﺠﻠﺔ ﺗﻴﻠﻰ ﺳﺘﻼﻳﺖ ﻭ ﻋﻨﺪﻫﺎ ﺗﺬﻛﺮﺕ‬
      ‫ﺇﻥ ﺍﻟﺴﻴﺪ ‪ Alex‬ﺭﺋﻴﺲ ﺗﺤﺮﻳﺮ ﺍﻟﻤﺠﻠﺔ ﻗﺪ ﺃﺧﺒﺮﻧﻲ ﻋﻦ ﻭﺻﻮﻝ‬
    ‫ﻃﺒﻖ ﻫﻮﺍﺋﻲ ﻹﺟﺮﺍء ﺍﻻﺧﺘﺒﺎﺭ ﻋﻠﻴﺔ ﻣﻦ ﺷﺮﻛﺔ ﺍﻟﺒﻠﻐﺎﺭﻳﺔ ‪Pasat‬‬
 ‫‪ ، Anteny‬ﻭ ﺳﺄﻟﺖ ﻧﻔﺴﻲ ﺇﺫﺍ ﻛﺎﻥ ﺍﻟﻄﺮﺩ ﻛﺒﻴﺮ ﺍﻟﺤﺠﻢ ﻭ ﻣﺘﻴﻦ ﻓﻬﻞ‬
                                                                                             ‫90 02 /7 0- 60‬
   ‫ﻳﻌﺎﺩﻝ ﻫﺬﺍ ﻗﻮﺓ ﻓﻰ ﺍﻟﻄﺒﻖ ؟ ﻫﺬﺍ ﻛﺎﻥ ﻫﻮ ﺍﻟﺴﺆﺍﻝ ﻭ ﺍﻟﻤﻔﺮﻭﺽ ﺍﻟﺮﺩ‬              ‫‪P140 OF PASA‬‬
                                                                      ‫‪Very solid an‬‬         ‫‪T ANTENY‬‬
                                                                                    ‫‪d robust dish‬‬
                                                                                ‫‪stable rec eptio for highly‬‬
                                            ‫ﻋﻠﻴﺔ ﺃﺛﻨﺎء ﺍﻻﺧﺘﺒﺎﺭ .‬                                ‫‪n‬‬




‫ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﻣﺜﺒﺖ ﻋﻠﻰ ﺍﻟﺤﺎﻣﻞ ■‬

‫‪40 TELE-satellite & Broadband — 06-07/2009 — www.TELE-satellite.com‬‬
TELE-satelliteother languageswww.TELE-satellite.com/...
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Arabic       ‫ﺍﻟﻌﺮﺑﻴﺔ‬          www.TELE-satellite.com/TELE-satellite-0907/ara/pasat.pdf
Indonesian   Indonesia        www.TELE-satellite.com/TELE-satellite-0907/bid/pasat.pdf
Bulgarian    Български        www.TELE-satellite.com/TELE-satellite-0907/bul/pasat.pdf
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German       Deutsch          www.TELE-satellite.com/TELE-satellite-0907/deu/pasat.pdf
English      English          www.TELE-satellite.com/TELE-satellite-0907/eng/pasat.pdf
Spanish      Español          www.TELE-satellite.com/TELE-satellite-0907/esp/pasat.pdf
Farsi        ‫ﻓﺎﺭﺳﻲ‬            www.TELE-satellite.com/TELE-satellite-0907/far/pasat.pdf
French       Français         www.TELE-satellite.com/TELE-satellite-0907/fra/pasat.pdf
Greek        Ελληνικά         www.TELE-satellite.com/TELE-satellite-0907/hel/pasat.pdf
Croatian     Hrvatski         www.TELE-satellite.com/TELE-satellite-0907/hrv/pasat.pdf
Italian      Italiano         www.TELE-satellite.com/TELE-satellite-0907/ita/pasat.pdf
Hungarian    Magyar           www.TELE-satellite.com/TELE-satellite-0907/mag/pasat.pdf
Mandarin     中文               www.TELE-satellite.com/TELE-satellite-0907/man/pasat.pdf
Dutch        Nederlands       www.TELE-satellite.com/TELE-satellite-0907/ned/pasat.pdf
Polish       Polski           www.TELE-satellite.com/TELE-satellite-0907/pol/pasat.pdf
Portuguese   Português        www.TELE-satellite.com/TELE-satellite-0907/por/pasat.pdf
Romanian     Românesc         www.TELE-satellite.com/TELE-satellite-0907/rom/pasat.pdf
Russian      Русский          www.TELE-satellite.com/TELE-satellite-0907/rus/pasat.pdf
Swedish      Svenska          www.TELE-satellite.com/TELE-satellite-0907/sve/pasat.pdf
Turkish      Türkçe           www.TELE-satellite.com/TELE-satellite-0907/tur/pasat.pdf
                          Available online starting from 29 May 2009



                                                                                 www.TELE-satellite.com — 06-07/2009 — TELE-satellite & Broadband   41
‫ﻟﻼﺳﺘﺨﺪﺍﻡ ﻣﻊ ﺍﻷﻃﺒﺎﻕ ﻣﻀﺒﻮﻃﺔ‬              ‫ﺃﻧﻨﻲ ﺍﺣﺘﺎﺝ ﺇﻟﻰ ﺷﺎﻛﻮﺵ ﻭ ﻋﺘﻠﺔ‬
                                                                      ‫ﺍﻟﺒﺆﺭﺓ ﻭ ﻃﺒﻴﻌﻴﺎ ﻓﺎﻥ ﺗﺮﻛﻴﺐ ﻭﺣﺪﺓ‬         ‫ﻟﻜﻲ ﺃﺗﻤﻜﻦ ﻣﻦ ﻓﺘﺢ ﺍﻟﺼﻨﺪﻭﻕ ﺍﻟﺨﺸﺒﻲ‬
                                                                      ‫ﺧﻔﺾ ﺷﻮﺷﺮﺓ ﻣﻦ ﺍﻟﻨﻮﻉ ﺍﻟﻤﺴﺘﺨﺪﻡ‬            ‫ﻭ ﺍﺳﺘﺨ ﺮﺍﺝ ﺍﻟﻄﺒﻖ ﻭ ﺍﻟﻤﻜﻮﻧﺎﺕ‬
                                                                      ‫ﻋﻠﻰ ﺃﻃﺒﺎﻕ ﻏﻴﺮ ﻣﻀﺒﻮﻃﺔ ﺍﻟﺒﺆﺭﺓ ﻟﻦ‬         ‫ﺍﻷﺧﺮﻯ ﻭ ﻗﺪ ﺗﻢ ﺭﺑﻂ ﻭ ﺗﻐﻠﻴﻒ ﺟﻤﻴﻊ‬
                                                                      ‫ﺗﻌﻄﻰ ﻧﺘﺎﺋﺞ ﺟﻴﺪﺓ ﻋﻨﺪ ﺗﺮﻛﻴﺒﻬﺎ ﻋﻠﻰ‬        ‫ﺍﻟﻤﻜﻮﻧﺎﺕ ﺑﻜﻞ ﺣﺮﺹ ﺑﺤﻴﺚ ﻻ ﺗﻮﺟﺪ‬
                                                                                 ‫ﺃﻃﺒﺎﻕ ﻣﻀﺒﻮﻃﺔ ﺍﻟﺒﺆﺭﺓ .‬       ‫ﺃﻱ ﻓﺮﺻﺔ ﻟﺨﺪﺵ ﺍﻟﻄﺒﻖ ﺃﻭ ﺍﻟﻤﻜﻮﻧﺎﺕ‬
                                                                                                             ‫ﺃﺛﻨﺎء ﺍﻟﻨﻘﻞ ﻭ ﻟﻘﺪ ﺃﻋﺠﺒﻨﻲ ﺫﻟﻚ ، ﺣﻴﺚ‬
  ‫ﺗﻢ ﺗﺴﻠﻴﻢ ﺍﻟﻄﺒﻖ ﻓﻰ ﺻﻨﺪﻭﻕ ﺧﺸﺒﻲ ﻗﻮﻯ ■‬                                  ‫ﺇﻥ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﻣﺼﻤﻢ ﻟﺘﺮﻛﻴﺐ‬             ‫ﺃﻥ ﺍﻟﻤﻌﺪﺍﺕ ﺍﻻﺣﺘ ﺮﺍﻓﻴﺔ ﻓﻘﻂ ﻫﻰ ﺍﻟﺘﻰ‬
                                                                      ‫ﻭﺣﺪﺍﺕ ﺧﻔﺾ ﺷﻮﺷﺮﺓ ﺫﺍﺕ ﺷﻔﺔ ﻭ ﻟﻜﻦ‬          ‫ﺗﻐﻠﻒ ﺑﻌﻨﺎﻳﺔ ، ﻭ ﻋﻨﺪ ﺍﺳﺘﺨ ﺮﺍﺝ ﺟﻤﻴﻊ‬
                                                                      ‫ﻟﻸﺳﻒ ﻟﻢ ﻳﻜﻮﻥ ﻫﺬﺍ ﺍﻟﻨﻮﻉ ﻣﻮﺟﻮﺩ‬           ‫ﺍﻟﻤﻜﻮﻧﺎﺕ ﻻﺣﻈﺖ ﺃﻧﻬﺎ ﻣﻜﻮﻧﺎﺕ ﻗﻠﻴﻠﺔ‬
                                                                      ‫ﻋﻨﺪﻱ ﻭﻗﺖ ﺍﻻﺧﺘﺒﺎﺭ ﻭ ﻟﻜﻦ ﺍﻟﺬﻯ ﻛﺎﻥ‬                    ‫ﻭ ﻣﻦ ﺍﻟﺴﻬﻞ ﺗﺠﻤﻴﻌﻬﺎ .‬
                                                                      ‫ﻋﻨﺪﻱ ﻫﻮ ﻭﺣﺪﺓ ﺧﻔﺾ ﺷﻮﺷﺮﺓ -‪Ku‬‬
                                                                      ‫‪ Band‬ﻣﺰﻭﺩﺓ ﺑﺒﻮﻕ ﺗﻐﺬﻳﺔ ) ﺑﻤﻌﺪﻝ‬          ‫ﻭ ﻋﻠﻰ ﺍﻟﺮﻏﻢ ﻣﻦ ﺣﻘﻴﻘﺔ ﺍﻧﻪ ﻻ‬
                                                                      ‫ﺧﻔﺾ ﺷﻮﺷﺮﺓ ‪ ( 0.3dB‬ﻭ ﻛﺎﻧﺖ‬               ‫ﻳﻮﺟﺪ ﻛﺘﻴﺐ ﺗﺮﻛﻴﺐ ﻭ ﻟﻜﻦ ﻛﺎﻥ ﻳﻮﺟﺪ‬
                                                                      ‫ﻏﻠﻴﻈﺔ ﻭ ﻟﻢ ﺗﺘﻨﺎﺳﺐ ﻣﻊ ﺍﻟﺤﺎﻣﻞ ﺍﻟﺬﻯ‬       ‫ﺭﺳﻢ ﻳﻈﻬﺮ ﻛﻴﻔﻴﺔ ﺗﺠﻤﻴﻊ ﺍﻟﻄﺒﻖ ، ﻭ‬
                                                                      ‫ﺃﺗﻰ ﻣﻊ ﺍﻟﻄﺒﻖ ﻭ ﻛﺎﻥ ﻋﻠﻰ ﺗﺮﻛﻴﺐ‬           ‫ﺗﻤﺖ ﻋﻤﻠﻴﺔ ﺍﻟﺘﺮﻛﻴﺐ ﻓﻮﺭﺍ ﻭ ﺑﻄﺮﻳﻘﺔ‬
                                                                      ‫ﺣﺎﻣﻞ ﺑﻮﻕ ﺗﻐﺬﻳﺔ ﺁﺧﺮ ﻳﺘﻨﺎﺳﺐ ﻣﻊ‬           ‫ﺃﻥ ﺃﻱ ﺷﺨﺺ ﻳﻤﻜﻨﻪ ﺗﺠﻤﻴﻊ ﺍﻟﻄﺒﻖ‬
                                                                      ‫ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﺍﻟﺬﻯ ﺍﺳﺘﺨﺪﻣﻪ ﻭ ﺃﺧﻴ ﺮﺍ‬                      ‫ﻓﻰ ﻭﻗﺖ ﻗﻠﻴﻞ ﺟﺪﺍ .‬
                                                                      ‫ﺗﻢ ﺍﻟﺘﺮﻛﻴﺐ ﻭ ﻛﻨﺖ ﻣﺴﺘﻌﺪﺍ ﻹﺟ ﺮﺍء‬
  ‫ﻣﻜﻮﻧﺎﺕ ﺍﻟﻄﺒﻖ ﻟﻴﺴﺖ ﻛﺜﻴﺮﺓ... ■‬
                                                                                                ‫ﺍﻟﻘﻴﺎﺳﺎﺕ .‬   ‫ﻭ ﻟﻘﺪ ﺩﻫﺸﺖ ﻋﻨﺪﻣﺎ ﺍﻛﺘﺸﻔﺖ ﺃﻥ‬
                                                                                                             ‫ﺍﻟﻄﺒﻖ ﻣﺼﻤﻢ ﻟﻠﺘﺜﺒﻴﺖ ﻋﻠﻰ ﺻﺎﺭﻱ‬
                                                                      ‫ﻭ ﻟﻘﺪ ﻭﺟﻬﺖ ﺍﻟﻄﺒﻖ ﺇﻟﻰ ﺍﻻﺗﺠﺎﻩ‬            ‫ﺑﻘﻄﺮ 07ﻣﻢ ﺣﻴﺚ ﺃﻥ ﺍﻷﻗﻄﺎﺭ ﺍﻷﻛﺜﺮ‬
                                                                      ‫ﺍﻟﺼﺤﻴﺢ ﻭ ﻓﻮﺭﺍ ﺗﻢ ﺍﺳﺘﻘﺒﺎﻝ ﺍﻹﺷﺎﺭﺓ‬        ‫ﺷﻴﻮﻋﺎ ﻫﻰ 06ﻣﻢ ) ﻭ ﺑﺎﻟﻄﺒﻊ 04ﻣﻢ‬
                                                                      ‫ﻓﻰ ﺟﻬﺎﺯ ﻗﻴﺎﺱ ﺍﻹﺷﺎ ﺭﺍﺕ ﻭ ﻗﺪ ﺣﺪﺩ‬         ‫ﺑﺎﻟﻨﺴﺒﺔ ﻟﻸﻃﺒﺎﻕ ﺍﻟﺼﻐﻴﺮﺓ ( ﻭ ﺑﻌﺪ‬
                                                                      ‫ﺟﻬﺎﺯ ﻗﻴﺎﺱ ﺍﻹﺷﺎ ﺭﺍﺕ ﺃﻥ ﺍﻹﺷﺎ ﺭﺍﺕ‬         ‫ﺗﺜﺒﻴﺖ ﺍﻟﺼﻮﺍﻣﻴﻞ ﻭﻛﺎﻥ ﻃﻮﻝ ﺍﻟﺼﺎﺭﻱ‬
                                                                      ‫ﺍﻟﻤﺴﺘﻘﺒﻠﺔ ﻫﻰ ﻣﻦ ﺍﻟﻘﻤﺮ ﻋﻨﺪ 2.82‬         ‫ﺑﺎﻟﺸﻜﻞ ﺍﻟﻜﺎﻓﻲ ﻭ ﻗﺮﺭﺕ ﻋﺪﻡ ﻋﻤﻞ‬
                                                                      ‫ﺩﺭﺟﺔ ﺷﺮﻕ ) ﺍﻟﻘﻤﺮ ‪ ( Astra‬ﻭ ﻗﻤﺖ‬         ‫ﺻﺎﺭﻱ ﺟﺪﻳﺪ ﻭ ﺍﺳﺘﺨﺪﺍﻡ ﺍﻟﺼﺎﺭﻱ‬
                                                                      ‫ﺑﺘﺤﺮﻳﻚ ﺍﻟﻄﺒﻖ ﺣﺘﻰ ﺣﺼﻠﺖ ﻋﻠﻰ‬              ‫ﺍﻟﻘﺪﻳﻢ ﺑﻘﻄﺮ 06ﻣﻢ ﻭ ﺫﻟﻚ ﻟﻌﻤﻠﻴﺔ‬
                                                                      ‫ﺇﺷﺎ ﺭﺍﺕ ﺫﺍﺕ ﺟﻮﺩﺓ ﻋﺎﻟﻴﺔ ، ﻛﻤﺜﺎﻝ ﻗﻴﻢ‬     ‫ﺍﻻﺧﺘﺒﺎﺭ ﺍﻟﻮﻗﺘﻴﺔ ﻭ ﻟﻜﻨﻨﻲ ﺍﻧﺼﺢ‬
                                                                      ‫‪ MER = 17.4 dB‬ﺑﻞ ﻭ ﺍﻛﺜﺮ ﻣﻦ‬             ‫ﺑﺎﺳﺘﺨﺪﺍﻡ ﺍﻟﻘﻄﺮ ﺍﻟﻤﻨﺎﺳﺐ ﻟﻠﻄﺒﻖ‬
                                                                                                    ‫ﺫﻟﻚ .‬                         ‫ﺑﻘﻄﺮ 07ﻣﻢ .‬


                                                                      ‫ﻭ ﻟﻜﻦ ﻣﺎﺫﺍ ﻋﻦ ﺍﺳﺘﻘﺒﺎﻝ ﺍﻹﺷﺎ ﺭﺍﺕ‬         ‫ﻭ ﻋﻨﺪ ﻭﺿﻊ ﺍﻟﻄﺒﻖ ﻋﻠﻰ ﺍﻟﺼﺎﺭﻱ‬
                                                                      ‫ﺑﺪ ﺭﺍﺳﺔ‬   ‫ﻗﻤﺖ‬   ‫ﻟﻘﺪ‬   ‫؟‬    ‫ﺍﻟﻀﻌﻴﻔﺔ‬     ‫ﻭ ﺗﻢ ﺭﺑﻂ ﺍﻟﺼﻮﺍﻣﻴﻞ ، ﻻﺣﻈﺖ ﺃﻥ‬
                                                                      ‫ﻧﻄﺎﻕ ﺍﻟﺘﻐﻄﻴﺔ ﻟﻠﻌﺪﻳﺪ ﻣﻦ ﺍﻷﻗﻤﺎﺭ‬          ‫ﺍﻟﻄﺒﻖ ﻣﺘﻴﻦ ﻭ ﺻﻠﺐ ، ﻭ ﻫﺬﺍ ﻣﻬﻢ‬
                                                                      ‫ﺍﻟﺼﻨﺎﻋﻴﺔ ﻣﻦ ﻣﻮﻗﻊ ﻭ ﺃﺩﺭﻛﺖ ﺃﻥ‬            ‫ﺧﺼﻮﺻﺎ ﺑﺎﻟﻤﻨﺴﺒﺔ ﻟﻄﺒﻖ ﺑﻤﺜﻞ ﻫﺬﺍ‬
                                                                      ‫ﺍﻟﻌﻴﺶ ﻓﻰ ﺑﻮﻟﻨﺪﺍ ﻭ ﺍﺳﺘﻘﺒﺎﻝ ﺍﻷﻗﻤﺎﺭ‬       ‫ﺍﻟﺤﺠﻢ ، ﺇﻥ ﺯﺍﻭﻳﺔ ﺍﻟﺮﺅﻳﺔ ﺻﻐﻴﺮﺓ ﺟﺪﺍ‬
                                                                      ‫ﺍﻟﺼﻨﺎﻋﻴﺔ ﻳﻌﺘﺒﺮ ﻣﺘﻌﻪ ﻭ ﻟﻜﻦ ﻟﻴﺲ‬          ‫ﻭ ﺃﻱ ﺍﺭﺗﺠﺎﺝ ﺻﻐﻴﺮ ﺳﻮﻑ ﻳﺆﺛﺮ ﻋﻠﻰ‬
                                                                      ‫ﻣﻦ ﺍﻟﻀﺮﻭﺭﻱ ﺍﺳﺘﺨﺪﺍﻡ ﻃﺒﻖ ﺑﻘﻄﺮ‬                               ‫ﺍﻻﺳﺘﻘﺒﺎﻝ ﺑﻘﻮﺓ .‬
                                                                      ‫ﻛﺒﻴﺮ ﺣﻴﺚ ﺃﻧﻬﺎ ﺗﻘﻊ ﻓﻰ ﻣﻨﺘﺼﻒ‬             ‫ﻭ ﺃﺗﻰ ﺍﻟﻮﻗﺖ ﻟﺘﺮﻛﻴﺐ ﻭﺣﺪﺓ ﺧﻔﺾ‬
                                                                      ‫ﺃﻭﺭﻭﺑﺎ ﻭ ﺍﻹﺷﺎ ﺭﺍﺕ ﻗﻮﻳﺔ ﻟﺪﺭﺟﺔ ﻛﺎﻓﻴﺔ‬     ‫ﺍﻟﺸﻮﺷﺮﺓ ﻭ ﻗﺪ ﺗﻢ ﺗﺰﻭﻳﺪ ﺍﻟﻄﺒﻖ ﺑﺒﻮﻕ‬
                                                                      ‫ﻻﺳﺘﺨﺪﺍﻡ ﻃﺒﻖ ﺑﻘﻄﺮ 09ﺳﻢ ﻭ ﺫﻟﻚ‬            ‫ﺗﻐﺬﻳﺔ ﻟﻮﺣﺪﺓ ﺧﻔﺾ ﺷﻮﺷﺮﺓ ﻣﻦ ﻧﻮﻉ‬
                                                                      ‫ﻻﺳﺘﻘﺒﺎﻝ ﻣﻌﻈﻢ ﺍﻷﻗﻤﺎﺭ ﺍﻟﺼﻨﺎﻋﻴﺔ ،‬         ‫‪ Ku-Band‬ﻭ ﻫﺬﺍ ﺍﻟﺒﻮﻕ ﻣﺨﺼﺺ‬
  ‫... ﻭ ﻟﻬﺬﺍ ﻓﺎﻥ ﻋﻤﻠﻴﺔ ﺍﻟﺘﺠﻤﻴﻊ ﺳﻬﻠﺔ ■‬


‫‪42 TELE-satellite & Broadband — 06-07/2009 — www.TELE-satellite.com‬‬
‫ﺗﻢ ﺗﺮﻛﻴﺐ ﺁﺧﺮ ﺻﺎﻣﻮﻟﺔ ﻟﺘﺜﺒﻴﺖ ﺍﻟﻄﺒﻖ ﻋﻠﻰ ﺍﻟﺼﺎﺭﻱ ■‬                       ‫ﻟﻘﺪ ﺍﺳﺘﺨﺪﻣﻨﺎ ﻭﺣﺪﺓ ﺧﻔﺾ ﺷﻮﺷﺮﺓ ﻣﺰﻭﺩﺓ ﺑﺒﻮﻕ ﺗﻐﺬﻳﺔ ﻭ ﻟﻬﺬﺍ ﻟﻢ ﻳﻜﻦ ﻫﻨﺎﻙ ■‬
                                                                        ‫ﺣﺎﺟﺔ ﺇﻟﻰ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﻭ ﺍﻟﺤﺎﻣﻞ ﺍﻷﺻﻠﻲ‬




                                                                      ‫ﻓﻘﻂ ﻣﻊ ﺍﻷﻃﺒﺎﻕ ﺍﻟﻜﺒﻴﺮﺓ ﻳﻤﻜﻨﻚ ﺍﺳﺘﻘﺒﺎﻝ ﺇﺷﺎﺭﺍﺕ ﻣﺜﻞ ﻫﺬﻩ ■‬
  ‫ﻫﺬﺍ ﻫﻮ ﺣﺎﻣﻞ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ■‬                                             ‫ﺍﻟﻘﺮﺍءﺍﺕ ‪ MER‬ﻭ ‪. NM‬‬




  ‫ﺗﻢ ﺗﻮﺟﻴﻪ ﺍﻟﻄﺒﻖ ﺇﻟﻰ ﺍﻟﻘﻤﺮ ‪ HOTBIRD‬ﻋﻨﺪ 31 ﺩﺭﺟﺔ ﺷﺮﻕ ■‬


‫‪44 TELE-satellite & Broadband — 06-07/2009 — www.TELE-satellite.com‬‬
‫1.‪Fig‬‬




‫) ﻣﻌﺪﻝ ﺧﻔﺾ ﺍﻟﻀﻮﺿﺎء = ‪NF‬‬                  ‫ﻭ ﻛﺎﻥ ﻫﻨﺎﻙ ﺍﻟﻘﻠﻴﻞ ﻣﻦ ﺍﻷﻗﻤﺎﺭ ﺍﻟﺘﻰ‬
                ‫‪. ( 0.3~0.4 dB‬‬           ‫ﻻ ﺗﻐﻄﻰ ﻣﻮﻗﻌﻲ ﺑﺤﻴﺚ ﺃﻥ ﻃﺒﻖ ﺑﻘﻄﺮ‬
                                                    ‫041ﺳﻢ ﻟﻦ ﺗﻜﻮﻥ ﻛﺎﻓﻴﺔ .‬
‫ﻭ ﻛﻤﺎ ﺗﻮﻗﻌﺖ ﺃﻥ ﺟﻮﺩﺓ ﺍﻹﺷﺎﺭﺍﺕ‬
‫ﻛﺎﻧﺖ ﺍﻓﻀﻞ ﺑﺸﻜﻞ ﻣﻠﺤﻮﻅ ، ﻭ ﻛﺎﻧﺖ‬            ‫ﻭ ﻟﻘﺪ ﻗﻤﺖ ﺑﺎﺧﺘﺒﺎﺭ ﺍﻻﺳﺘﻘﺒﺎﻝ‬
‫ﻗﻴﻢ ‪ MER‬ﺍﻓﻀﻞ ﺏ 2-1 ‪ ، dB‬ﻟﻠﻄﺒﻖ‬            ‫ﺍﻟﻘﻤﺮ‬   ‫ﻣﻦ‬    ‫ﺍﻟﻀﻌﻴﻔﺔ‬     ‫ﻟﻺﺷﺎ ﺭﺍﺕ‬
‫ﺑﻘﻄﺮ 9.0 ﻣﺘﺮ ﻭ 4-3 ‪ dB‬ﻟﻠﻄﺒﻖ‬              ‫22‪ EXPRESS AM‬ﻋﻨﺪ 35‬
‫ﺑﻘﻄﺮ 6.0 ﻣﺘﺮ ، ﻭ ﺭﺑﻤﺎ ﺃﻥ ﺑﻌﺾ‬             ‫ﺩﺭﺟﺔ ﺷﺮﻕ ﺍﻟﺬﻯ ﺗﺒﺪﻭﺍ ﺇﺷﺎ ﺭﺍﺕ ﺗﻠﻚ‬
‫ﻗ ﺮﺍء ﺍﻟﻤﺠﻠﺔ ﺳﻮﻑ ﻳﺘﻌﺠﺒﻮﻥ ﻟﺬﻟﻚ ﺣﻴﺚ‬        ‫ﺍﻟﻘﻤﺮ ﻳﺠﺐ ﺃﻥ ﺗﺴﺘﻘﺒﻞ ﺑﻄﺒﻖ ﺑﻘﻄﺮ‬
‫ﺇﻥ ﻣﺴﺘﻮﻯ ﺍﻹﺷﺎﺭﺍﺕ ﻓﻰ ﺍﻟﻄﺒﻖ 041‪P‬‬           ‫051 – 091ﺳﻢ ) ﻗﻮﺓ ﺍﻹﺷﺎﺭﺓ < 04‬
‫ﺍﻟﻤﻀﺒﻮﻁ ﺍﻟﺒﺆﺭﺓ ﻣﻦ ﺍﻷﻃﺒﺎﻕ ﺍﻷﺻﻐﺮ‬           ‫‪ ( dBW‬ﻭ ﻟﻘﺪ ﺃﻣﻠﺖ ﺃﻥ ﺍﺣﺼﻞ ﻋﻠﻰ‬
‫ﺣﺠﻤﺎ ، ﻓﺒﺎﻟﻨﺴﺒﺔ ﻻﺳﺘﻘﺒﺎﻝ ﺍﻟﺘﻠﻴﻔﺰﻳﻮﻥ‬       ‫ﺷﺊ ﺑﺎﻟﻄﺒﻖ 041‪ P‬ﻭ ﺍﻟﺬﻯ ﻳﺠﺐ ﺃﻥ‬
‫ﺍﻟﺮﻗﻤﻲ ﻳﺠﺐ ﺍﺳﺘﺨﺪﺍﻡ ﻃﺒﻖ ﺑﺤﺠﻢ ﺍﻛﺒﺮ‬         ‫ﻳﻜﻮﻥ 34-24 ‪ ، dBW‬ﻭ ﻋﻨﺪﻫﺎ‬
                   ‫) ﺍﻟﺸﻜﻞ ﺭﻗﻢ 1 ( .‬     ‫ﻳﺴﺘﻄﻴﻊ ﺍﻟﻄﺒﻖ ﺍﺳﺘﻘﺒﺎﻝ ﺍﻹﺷﺎ ﺭﺍﺕ .‬


‫ﻭ ﺍﻋﺘﻤﺎﺩﺍ ﻋﻠﻰ ﺍﻟﻤﻘﺎﺭﻧﺔ ﺑﻴﻦ‬               ‫ﻭ ﻋﻨﺪﻣﺎ ﺣﺎﻭﻟﺖ ﺃﻥ ﺍﻭﺟﻪ ﺍﻟﻄﺒﻖ‬
‫ﺍﻟﻘﻴﺎﺳﺎﺕ ﻳﻤﻜﻨﻨﻲ ﺃﻥ ﺃﻗﻮﻝ ﺃﻥ ﺍﻟﻄﺒﻖ‬         ‫041 ‪ PASAT‬ﺇﻟﻲ ﻫﺬﺍ ﺍﻟﻘﻤﺮ ﺃﺩﺭﻛﺖ‬
‫041‪ P‬ﻳﺤﺼﻞ ﻋﻠﻰ ﺩﺭﺟﺔ ﻛﺴﺐ‬                   ‫ﺃﻥ ﺻﺎﻣﻮﻟﺔ ﺭﺑﻂ ﺯﺍﻭﻳﺔ ﺍﻟﺘﺼﻌﻴﺪ‬
‫ﻋﺎﻟﻴﺔ ﻟﻺﺷﺎﺭﺍﺕ ﻭ ﻫﺬﺍ ﻳﻌﻨﻰ ﺃﻥ ﺗﻜﻮﻳﺮ‬        ‫ﻟﺘﻮﺟﻴﻪ ﺍﻟﻄﺒﻖ ﺇﻟﻰ ﺍﻟﻘﻤﺮ ﻗﺼﻴﺮﺓ ﺟﺪﺍ‬
‫ﺳﻄﺢ ﺍﻟﻄﺒﻖ ﺻﺤﻴﺢ ﻭ ﺃﻥ ﺍﻹﺷﺎﺭﺍﺕ ﻳﺘﻢ‬          ‫، ﻓﺄﻧﺎ ﺍﺣﺘﺎﺝ ﺇﻟﻰ ﺯﺍﻭﻳﺔ ﺗﺼﻌﻴﺪ 4.12‬     ‫ﻧﻄﺎﻕ ﺍﻟﺘﻐﻄﻴﺔ ﻟﻬﺬﺍ ﺍﻟﻘﻤﺮ ﻻ ﻳﺼﻞ ﺇﻟﻲ ﻣﺮﻛﺰ ﺍﻻﺧﺘﺒﺎﺭ ﻭ ﻟﻜﻦ ﻃﺒﻖ ‪■ Pasat‬‬
‫ﺗﺮﻛﻴﺰﻫﺎ ﻋﻠﻰ ﺑﺆﺭﺓ ﺍﻟﻄﺒﻖ ﻛﻤﺎ ﺃﻥ ﺍﻟﻄﺒﻖ‬      ‫ﺩﺭﺟﺔ ، ﻭ ﻟﻜﻦ ﻫﺬﺍ ﻛﺎﻥ ﺧﺎﺭﺝ ﻧﻄﺎﻕ‬          ‫ﺍﺳﺘﻄﺎﻉ ﺍﻟﺘﻘﺎﻁ ﺑﻌﺾ ﺍﻹﺷﺎﺭﺍﺕ .‬

   ‫ﻗﻮﻯ ﻭ ﻣﺘﻴﻦ ﻭ ﻳﺼﻤﺪ ﻟﻌﺪﺓ ﺳﻨﻮﺍﺕ .‬        ‫ﺍﻟﻄﺒﻖ ﺣﻴﺚ ﺃﻥ ﺍﻟ ﺰﺍﻭﻳﺔ ﻟﻠﻄﺒﻖ ﻳﺠﺐ‬                                               ‫ﺗﻌﻠﻴﻖ ﺍﻟﺨﺒﺮﺍء‬
                                                                                                                                  ‫+‬
                                         ‫ﺃﻥ ﺗﻜﻮﻥ ﻣﻦ 52 ﺇﻟﻰ 07 ﺩﺭﺟﺔ ، ﻭ‬           ‫ﻃﺒﻖ ﻗﻮﻯ ﺟﺪﺍ ﻭ ﻣﺘﻴﻦ ﻭ ﺟﻤﻴﻊ ﻣﻜﻮﻧﺎﺗﻪ ﺗﺘﻨﺎﺳﺐ ﻣﻊ‬
‫ﺇﻥ ﺯﺍﻭﻳﺔ ﺍﻟﺘﺼﻌﻴﺪ ) 07-52 ﺩﺭﺟﺔ‬            ‫ﻛﺎﻥ ﻋﻠﻰ ﺧﻔﺾ ﺍﻟﻄﺒﻖ ﺇﻟﻰ ﺃﻗﺼﻰ‬              ‫ﺑﻌﻀﻬﺎ ، ﻭ ﻳﺘﻢ ﺗﻐﻠﻴﻒ ﺍﻟﻤﻜﻮﻧﺎﺕ ﺟﻴﺪﺍ ، ﺍﻟﺘﺼﻨﻴﻊ ﺍﻟﻌﺎﻡ‬
                                                                                                           ‫ﻻ ﻳﺘﺮﻙ ﻟﺪﻳﻚ ﺷﺊ ﺗﺮﻏﺒﻪ .‬
‫( ﻭ ﻫﻰ ﺩﺭﺟﺔ ﻣﻨﺎﺳﺒﺔ ﻟﻠﺪﻭﻝ ﺍﻟﻘﺮﻳﺒﺔ‬                                     ‫ﺩﺭﺟﺔ .‬
‫ﻣﻦ ﺧﻂ ﺍﻻﺳﺘﻮﺍء ) ﻭ ﻣﻮﻗﻌﻲ ﻓﻰ ﻫﻮﻟﻨﺪﺍ‬                                                                                                          ‫-‬      ‫‪Jacek Pawlowski‬‬
                                                                                                                                                      ‫‪TELE-satellite‬‬
‫) 52 ﺩﺭﺟﺔ ﺷﺮﻕ ( ﻭ ﻟﻜﻦ ﺑﺎﻟﻄﺒﻊ‬             ‫ﻭ ﺑﻌﺪ ﻓﻌﻞ ﻫﺬﺍ ﻻﺣﻈﺖ ﻃﻴﻒ‬                                                                    ‫ﻻ ﻳﻮﺟﺪ‬               ‫‪Test Center‬‬
                                                                                                                                                             ‫‪Poland‬‬

‫ﻳﻌﺘﻤﺪ ﻫﺬﺍ ﻋﻠﻰ ﺍﻟﻘﻤﺮ ﺍﻟﻤ ﺮﺍﺩ ﺍﺳﺘﻘﺒﺎﻟﻪ‬     ‫‪EXPRESS‬‬          ‫ﻟﻠﻘﻤﺮ‬    ‫ﺍﻹﺷﺎ ﺭﺍﺕ‬
‫، ﺇﻥ ﺷﺮﻛﺔ ‪ Pasat‬ﺗﻘﻮﻡ ﺃﻳﻀﺎ ﺑﺘﺼﻨﻴﻊ‬         ‫22‪ AM‬ﻋﻠﻰ ﺟﻬﺎﺯ ﻗﻴﺎﺱ ﺍﻹﺷﺎ ﺭﺍﺕ ﻭ‬                                         ‫‪TECHNIC‬‬
                                                                                                                       ‫‪DATA‬‬
‫ﺍﻷﻃﺒﺎﻕ ﻃﺒﻘﺎ ﻟﻠﻤﻮﺍﺻﻔﺎﺕ ﺍﻟﺨﺎﺻﺔ ﺇﺫﺍ‬         ‫ﻛﺎﻧﺖ ﻗ ﺮﺍءﺍﺕ ﻗﻴﻢ ‪ C/N‬ﻋﻨﺪ ﻣﺴﺘﻮﻯ‬
                                                                                ‫‪Manufacturer‬‬                             ‫‪Pasat Anteny, Bulgaria‬‬
                  ‫ﺍﺣﺘﺠﺖ ﺇﻟﻰ ﺫﻟﻚ .‬        ‫8 ‪ ، dB‬ﻭ ﻛﺎﻧﺖ ﺍﻗﻞ ﻣﻦ ﺍﻟﻘﺪﺭ‬             ‫‪Telephone‬‬                                ‫1136 6 053 953+ ,1193 6 053 953+‬

                                         ‫ﺍﻟﻤﻨﺎﺳﺐ ﻟﻼﺳﺘﻘﺒﺎﻝ ، ﻓﻘﺪ 1 ﺩﻳﺴﻴﺒﻞ‬        ‫‪Fax‬‬                                      ‫1104 6 053 953+‬
                                                                                ‫‪Website‬‬                                  ‫‪www.sat.bg‬‬
‫ﻭ ﺇﺫﺍ ﻗﺮﺭﺕ ﺷ ﺮﺍء ﺇﺣﺪﻯ ﻫﺬﻩ ﺍﻷﻃﺒﺎﻕ‬         ‫ﺃﻭ ﺍﻛﺜﺮ ﻛﺎﻥ ﻛﺎﻓﻴﺎ ﻟﻤﺸﺎﻫﺪﺓ ﺍﻟﻘﻨﻮﺍﺕ .‬    ‫‪Email‬‬                                    ‫‪sales@pasat.bg‬‬
‫ﺍﻟﻘﻮﻳﺔ ﻭ ﺳﻬﻠﺔ ﺍﻟﺘﺮﻛﻴﺐ ﺗﺬﻛﺮ ﺃﻥ‬                                                   ‫‪Function‬‬                                 ‫‪Prime focus aluminum dish for Ku-Band‬‬
                                                                                ‫‪Model‬‬                                    ‫041 ‪P‬‬
‫ﺍﻟﺼﺎﺭﻱ ﻳﺠﺐ ﺃﻥ ﻳﻜﻮﻥ ﺑﻘﻄﺮ 07ﻣﻢ‬             ‫ﻭ ﻟﻜﻦ ﻛﺎﻥ ﻫﻨﺎﻙ ﺳﻮء ﺣﻆ ﻭ‬
                                                                                ‫‪Diameter‬‬                                 ‫‪140 cm‬‬
‫ﻭ ﺃﻥ ﻳﻜﻮﻥ ﻟﺪﻳﻚ ﻭﺣﺪﺓ ﺧﻔﺾ ﺷﻮﺷﺮﺓ‬            ‫ﺃﺧﻴ ﺮﺍ ﻗﺮﺭﺕ ﺇﻟﻰ ﺍﻻﻧﺘﻘﺎﻝ ﺇﻟﻰ ﻗﻤﺮ‬        ‫‪Focus‬‬                                    ‫‪50 cm‬‬

‫ﻣﺰﻭﺩ ﺑﺸﻔﺔ ﻟﻠﺘﺜﺒﻴﺖ ﻋﻠﻰ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ‬        ‫ﺫﺍﺕ ﺇﺷﺎ ﺭﺍﺕ ﺃﻗﻮﻯ ﻭ ﻫﻮ ﺍﻟﻘﻤﺮ‬            ‫‪F/D‬‬                                      ‫573.0‬
                                                                                ‫‪Gain @ 11.350 GHz‬‬                        ‫‪42.2 dB‬‬
                  ‫ﺑﻌﺪﺩ 4 ﺻﻮﺍﻣﻴﻞ .‬        ‫‪ HOTBIRD‬ﻋﻨﺪ 31 ﺩﺭﺟﺔ ﺷﺮﻕ‬
                                                                                ‫‪Gain @ 12.125 GHz‬‬                        ‫‪42.8 dB‬‬
                                         ‫ﻭ ﻗﻴﺎﺱ ﺟﻮﺩﺓ ﺍﻹﺷﺎ ﺭﺍﺕ ﻭ ﻣﻘﺎﺭﻧﺔ‬          ‫‪Gain @ 12.626 GHz‬‬                        ‫‪43.5 dB‬‬

‫ﺇﻥ ﺃﻃﺒﺎﻕ ﺷﺮﻛﺔ ‪ Pasat‬ﺗﺘﻨﺎﺳﺐ‬               ‫ﺍﻟﻄﺒﻖ ﺑﺄﻃﺒﺎﻕ ﺃﺧﺮﻯ ﺑﻘﻄﺮ ﻣﺘﺮ 6.0‬         ‫)°24 ‪Noise temperature (at elevation‬‬     ‫‪47 K‬‬
                                                                                ‫)‪Opening angle (-3dB‬‬                     ‫°52.1<‬
‫ﻣﻊ ﺍﻻﺣﺘ ﺮﺍﻓﻴﻴﻦ ﻭ ﺍﻟﻤﺴﺘﺨﺪﻡ ﺍﻟﻌﺎﺩﻱ‬         ‫ﻭ 9.0 ﻣﺘﺮ ، ﻭ ﻗﺪ ﺗﻢ ﺗﺠﻬﻴﺰ ﺍﻷﻃﺒﺎﻕ‬       ‫‪Thickness‬‬                                ‫‪1.2 mm‬‬
              ‫ﺇﺫﺍ ﺃﺭﺍﺩ ﺇﺷﺎ ﺭﺍﺕ ﺛﺎﺑﺘﺔ .‬   ‫ﺑﻮﺣﺪﺍﺕ ﺧﻔﺾ ﺷﻮﺷﺮﺓ ﺑﺠﻮﺩﺓ ﻋﺎﻟﻴﺔ‬           ‫‪Reflector mass‬‬                            ‫‪6 kg‬‬
                                                                                ‫‪Supporting hardware mass‬‬                 ‫‪5.2 kg‬‬




‫‪46 TELE-satellite & Broadband — 06-07/2009 — www.TELE-satellite.com‬‬

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Pasat

  • 1. ‫‪TEST REPORT‬‬ ‫‪Big Dish for Ku-Band‬‬ ‫ﻃﺒﻖ 041‪ P‬ﻣﻦ ﺷﺮﻛﺔ‬ ‫‪Pasat Anteny‬‬ ‫ﻃﺒﻖ ﻣﻀﺒﻮﻁ ﺍﻟﺒﺆﺭﺓ‬ ‫ﻻﺳﺘﻘﺒﺎﻝ ‪Ku-Band‬‬ ‫ﻋﻨﺪﻣﺎ ﺍﺳﺘﻠﻤﻨﺎ ﺍﻟﻄﺮﺩ ﻟﻢ ﻧﻜﻦ ﻧﻌﺮﻑ ﻣﺤﺘﻮﻳﺎﺗﻪ ، ﻓﻘﺪ ﺃﺗﻰ ﺇﻟﻴﻨﺎ‬ ‫ﺻﻨﺪﻭﻕ ﺧﺸﺒﻲ ﺿﺨﻢ ﻳﻮﺯﻥ 69 ﻛﻴﻠﻮ ﺟﺮﺍﻡ ﻭ ﺍﻟﺬﻯ ﺍﺣﺘﻞ ﻧﺼﻒ‬ ‫ﺣﺠﻢ ﺍﻟﺠﺮﺍﺝ ، ﻭ ﺑﻌﺪ ﻓﺤﺺ ﺍﻷﻭﺭﺍﻕ ﺍﻟﺘﻰ ﺃﺗﺖ ﻣﻊ ﺍﻟﻄﺮﺩ ﻭﺟﺪﺕ ﺍﻧﻪ‬ ‫ﻓﻌﻼ ﻣﺮﺳﻞ ﺇﻟﻰ ﻣﺮﻛﺰ ﺍﺧﺘﺒﺎﺭ ﻣﺠﻠﺔ ﺗﻴﻠﻰ ﺳﺘﻼﻳﺖ ﻭ ﻋﻨﺪﻫﺎ ﺗﺬﻛﺮﺕ‬ ‫ﺇﻥ ﺍﻟﺴﻴﺪ ‪ Alex‬ﺭﺋﻴﺲ ﺗﺤﺮﻳﺮ ﺍﻟﻤﺠﻠﺔ ﻗﺪ ﺃﺧﺒﺮﻧﻲ ﻋﻦ ﻭﺻﻮﻝ‬ ‫ﻃﺒﻖ ﻫﻮﺍﺋﻲ ﻹﺟﺮﺍء ﺍﻻﺧﺘﺒﺎﺭ ﻋﻠﻴﺔ ﻣﻦ ﺷﺮﻛﺔ ﺍﻟﺒﻠﻐﺎﺭﻳﺔ ‪Pasat‬‬ ‫‪ ، Anteny‬ﻭ ﺳﺄﻟﺖ ﻧﻔﺴﻲ ﺇﺫﺍ ﻛﺎﻥ ﺍﻟﻄﺮﺩ ﻛﺒﻴﺮ ﺍﻟﺤﺠﻢ ﻭ ﻣﺘﻴﻦ ﻓﻬﻞ‬ ‫90 02 /7 0- 60‬ ‫ﻳﻌﺎﺩﻝ ﻫﺬﺍ ﻗﻮﺓ ﻓﻰ ﺍﻟﻄﺒﻖ ؟ ﻫﺬﺍ ﻛﺎﻥ ﻫﻮ ﺍﻟﺴﺆﺍﻝ ﻭ ﺍﻟﻤﻔﺮﻭﺽ ﺍﻟﺮﺩ‬ ‫‪P140 OF PASA‬‬ ‫‪Very solid an‬‬ ‫‪T ANTENY‬‬ ‫‪d robust dish‬‬ ‫‪stable rec eptio for highly‬‬ ‫ﻋﻠﻴﺔ ﺃﺛﻨﺎء ﺍﻻﺧﺘﺒﺎﺭ .‬ ‫‪n‬‬ ‫ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﻣﺜﺒﺖ ﻋﻠﻰ ﺍﻟﺤﺎﻣﻞ ■‬ ‫‪40 TELE-satellite & Broadband — 06-07/2009 — www.TELE-satellite.com‬‬
  • 2. TELE-satelliteother languageswww.TELE-satellite.com/... Download this report in World from the Internet: Arabic ‫ﺍﻟﻌﺮﺑﻴﺔ‬ www.TELE-satellite.com/TELE-satellite-0907/ara/pasat.pdf Indonesian Indonesia www.TELE-satellite.com/TELE-satellite-0907/bid/pasat.pdf Bulgarian Български www.TELE-satellite.com/TELE-satellite-0907/bul/pasat.pdf Czech Česky www.TELE-satellite.com/TELE-satellite-0907/ces/pasat.pdf German Deutsch www.TELE-satellite.com/TELE-satellite-0907/deu/pasat.pdf English English www.TELE-satellite.com/TELE-satellite-0907/eng/pasat.pdf Spanish Español www.TELE-satellite.com/TELE-satellite-0907/esp/pasat.pdf Farsi ‫ﻓﺎﺭﺳﻲ‬ www.TELE-satellite.com/TELE-satellite-0907/far/pasat.pdf French Français www.TELE-satellite.com/TELE-satellite-0907/fra/pasat.pdf Greek Ελληνικά www.TELE-satellite.com/TELE-satellite-0907/hel/pasat.pdf Croatian Hrvatski www.TELE-satellite.com/TELE-satellite-0907/hrv/pasat.pdf Italian Italiano www.TELE-satellite.com/TELE-satellite-0907/ita/pasat.pdf Hungarian Magyar www.TELE-satellite.com/TELE-satellite-0907/mag/pasat.pdf Mandarin 中文 www.TELE-satellite.com/TELE-satellite-0907/man/pasat.pdf Dutch Nederlands www.TELE-satellite.com/TELE-satellite-0907/ned/pasat.pdf Polish Polski www.TELE-satellite.com/TELE-satellite-0907/pol/pasat.pdf Portuguese Português www.TELE-satellite.com/TELE-satellite-0907/por/pasat.pdf Romanian Românesc www.TELE-satellite.com/TELE-satellite-0907/rom/pasat.pdf Russian Русский www.TELE-satellite.com/TELE-satellite-0907/rus/pasat.pdf Swedish Svenska www.TELE-satellite.com/TELE-satellite-0907/sve/pasat.pdf Turkish Türkçe www.TELE-satellite.com/TELE-satellite-0907/tur/pasat.pdf Available online starting from 29 May 2009 www.TELE-satellite.com — 06-07/2009 — TELE-satellite & Broadband 41
  • 3. ‫ﻟﻼﺳﺘﺨﺪﺍﻡ ﻣﻊ ﺍﻷﻃﺒﺎﻕ ﻣﻀﺒﻮﻃﺔ‬ ‫ﺃﻧﻨﻲ ﺍﺣﺘﺎﺝ ﺇﻟﻰ ﺷﺎﻛﻮﺵ ﻭ ﻋﺘﻠﺔ‬ ‫ﺍﻟﺒﺆﺭﺓ ﻭ ﻃﺒﻴﻌﻴﺎ ﻓﺎﻥ ﺗﺮﻛﻴﺐ ﻭﺣﺪﺓ‬ ‫ﻟﻜﻲ ﺃﺗﻤﻜﻦ ﻣﻦ ﻓﺘﺢ ﺍﻟﺼﻨﺪﻭﻕ ﺍﻟﺨﺸﺒﻲ‬ ‫ﺧﻔﺾ ﺷﻮﺷﺮﺓ ﻣﻦ ﺍﻟﻨﻮﻉ ﺍﻟﻤﺴﺘﺨﺪﻡ‬ ‫ﻭ ﺍﺳﺘﺨ ﺮﺍﺝ ﺍﻟﻄﺒﻖ ﻭ ﺍﻟﻤﻜﻮﻧﺎﺕ‬ ‫ﻋﻠﻰ ﺃﻃﺒﺎﻕ ﻏﻴﺮ ﻣﻀﺒﻮﻃﺔ ﺍﻟﺒﺆﺭﺓ ﻟﻦ‬ ‫ﺍﻷﺧﺮﻯ ﻭ ﻗﺪ ﺗﻢ ﺭﺑﻂ ﻭ ﺗﻐﻠﻴﻒ ﺟﻤﻴﻊ‬ ‫ﺗﻌﻄﻰ ﻧﺘﺎﺋﺞ ﺟﻴﺪﺓ ﻋﻨﺪ ﺗﺮﻛﻴﺒﻬﺎ ﻋﻠﻰ‬ ‫ﺍﻟﻤﻜﻮﻧﺎﺕ ﺑﻜﻞ ﺣﺮﺹ ﺑﺤﻴﺚ ﻻ ﺗﻮﺟﺪ‬ ‫ﺃﻃﺒﺎﻕ ﻣﻀﺒﻮﻃﺔ ﺍﻟﺒﺆﺭﺓ .‬ ‫ﺃﻱ ﻓﺮﺻﺔ ﻟﺨﺪﺵ ﺍﻟﻄﺒﻖ ﺃﻭ ﺍﻟﻤﻜﻮﻧﺎﺕ‬ ‫ﺃﺛﻨﺎء ﺍﻟﻨﻘﻞ ﻭ ﻟﻘﺪ ﺃﻋﺠﺒﻨﻲ ﺫﻟﻚ ، ﺣﻴﺚ‬ ‫ﺗﻢ ﺗﺴﻠﻴﻢ ﺍﻟﻄﺒﻖ ﻓﻰ ﺻﻨﺪﻭﻕ ﺧﺸﺒﻲ ﻗﻮﻯ ■‬ ‫ﺇﻥ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﻣﺼﻤﻢ ﻟﺘﺮﻛﻴﺐ‬ ‫ﺃﻥ ﺍﻟﻤﻌﺪﺍﺕ ﺍﻻﺣﺘ ﺮﺍﻓﻴﺔ ﻓﻘﻂ ﻫﻰ ﺍﻟﺘﻰ‬ ‫ﻭﺣﺪﺍﺕ ﺧﻔﺾ ﺷﻮﺷﺮﺓ ﺫﺍﺕ ﺷﻔﺔ ﻭ ﻟﻜﻦ‬ ‫ﺗﻐﻠﻒ ﺑﻌﻨﺎﻳﺔ ، ﻭ ﻋﻨﺪ ﺍﺳﺘﺨ ﺮﺍﺝ ﺟﻤﻴﻊ‬ ‫ﻟﻸﺳﻒ ﻟﻢ ﻳﻜﻮﻥ ﻫﺬﺍ ﺍﻟﻨﻮﻉ ﻣﻮﺟﻮﺩ‬ ‫ﺍﻟﻤﻜﻮﻧﺎﺕ ﻻﺣﻈﺖ ﺃﻧﻬﺎ ﻣﻜﻮﻧﺎﺕ ﻗﻠﻴﻠﺔ‬ ‫ﻋﻨﺪﻱ ﻭﻗﺖ ﺍﻻﺧﺘﺒﺎﺭ ﻭ ﻟﻜﻦ ﺍﻟﺬﻯ ﻛﺎﻥ‬ ‫ﻭ ﻣﻦ ﺍﻟﺴﻬﻞ ﺗﺠﻤﻴﻌﻬﺎ .‬ ‫ﻋﻨﺪﻱ ﻫﻮ ﻭﺣﺪﺓ ﺧﻔﺾ ﺷﻮﺷﺮﺓ -‪Ku‬‬ ‫‪ Band‬ﻣﺰﻭﺩﺓ ﺑﺒﻮﻕ ﺗﻐﺬﻳﺔ ) ﺑﻤﻌﺪﻝ‬ ‫ﻭ ﻋﻠﻰ ﺍﻟﺮﻏﻢ ﻣﻦ ﺣﻘﻴﻘﺔ ﺍﻧﻪ ﻻ‬ ‫ﺧﻔﺾ ﺷﻮﺷﺮﺓ ‪ ( 0.3dB‬ﻭ ﻛﺎﻧﺖ‬ ‫ﻳﻮﺟﺪ ﻛﺘﻴﺐ ﺗﺮﻛﻴﺐ ﻭ ﻟﻜﻦ ﻛﺎﻥ ﻳﻮﺟﺪ‬ ‫ﻏﻠﻴﻈﺔ ﻭ ﻟﻢ ﺗﺘﻨﺎﺳﺐ ﻣﻊ ﺍﻟﺤﺎﻣﻞ ﺍﻟﺬﻯ‬ ‫ﺭﺳﻢ ﻳﻈﻬﺮ ﻛﻴﻔﻴﺔ ﺗﺠﻤﻴﻊ ﺍﻟﻄﺒﻖ ، ﻭ‬ ‫ﺃﺗﻰ ﻣﻊ ﺍﻟﻄﺒﻖ ﻭ ﻛﺎﻥ ﻋﻠﻰ ﺗﺮﻛﻴﺐ‬ ‫ﺗﻤﺖ ﻋﻤﻠﻴﺔ ﺍﻟﺘﺮﻛﻴﺐ ﻓﻮﺭﺍ ﻭ ﺑﻄﺮﻳﻘﺔ‬ ‫ﺣﺎﻣﻞ ﺑﻮﻕ ﺗﻐﺬﻳﺔ ﺁﺧﺮ ﻳﺘﻨﺎﺳﺐ ﻣﻊ‬ ‫ﺃﻥ ﺃﻱ ﺷﺨﺺ ﻳﻤﻜﻨﻪ ﺗﺠﻤﻴﻊ ﺍﻟﻄﺒﻖ‬ ‫ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﺍﻟﺬﻯ ﺍﺳﺘﺨﺪﻣﻪ ﻭ ﺃﺧﻴ ﺮﺍ‬ ‫ﻓﻰ ﻭﻗﺖ ﻗﻠﻴﻞ ﺟﺪﺍ .‬ ‫ﺗﻢ ﺍﻟﺘﺮﻛﻴﺐ ﻭ ﻛﻨﺖ ﻣﺴﺘﻌﺪﺍ ﻹﺟ ﺮﺍء‬ ‫ﻣﻜﻮﻧﺎﺕ ﺍﻟﻄﺒﻖ ﻟﻴﺴﺖ ﻛﺜﻴﺮﺓ... ■‬ ‫ﺍﻟﻘﻴﺎﺳﺎﺕ .‬ ‫ﻭ ﻟﻘﺪ ﺩﻫﺸﺖ ﻋﻨﺪﻣﺎ ﺍﻛﺘﺸﻔﺖ ﺃﻥ‬ ‫ﺍﻟﻄﺒﻖ ﻣﺼﻤﻢ ﻟﻠﺘﺜﺒﻴﺖ ﻋﻠﻰ ﺻﺎﺭﻱ‬ ‫ﻭ ﻟﻘﺪ ﻭﺟﻬﺖ ﺍﻟﻄﺒﻖ ﺇﻟﻰ ﺍﻻﺗﺠﺎﻩ‬ ‫ﺑﻘﻄﺮ 07ﻣﻢ ﺣﻴﺚ ﺃﻥ ﺍﻷﻗﻄﺎﺭ ﺍﻷﻛﺜﺮ‬ ‫ﺍﻟﺼﺤﻴﺢ ﻭ ﻓﻮﺭﺍ ﺗﻢ ﺍﺳﺘﻘﺒﺎﻝ ﺍﻹﺷﺎﺭﺓ‬ ‫ﺷﻴﻮﻋﺎ ﻫﻰ 06ﻣﻢ ) ﻭ ﺑﺎﻟﻄﺒﻊ 04ﻣﻢ‬ ‫ﻓﻰ ﺟﻬﺎﺯ ﻗﻴﺎﺱ ﺍﻹﺷﺎ ﺭﺍﺕ ﻭ ﻗﺪ ﺣﺪﺩ‬ ‫ﺑﺎﻟﻨﺴﺒﺔ ﻟﻸﻃﺒﺎﻕ ﺍﻟﺼﻐﻴﺮﺓ ( ﻭ ﺑﻌﺪ‬ ‫ﺟﻬﺎﺯ ﻗﻴﺎﺱ ﺍﻹﺷﺎ ﺭﺍﺕ ﺃﻥ ﺍﻹﺷﺎ ﺭﺍﺕ‬ ‫ﺗﺜﺒﻴﺖ ﺍﻟﺼﻮﺍﻣﻴﻞ ﻭﻛﺎﻥ ﻃﻮﻝ ﺍﻟﺼﺎﺭﻱ‬ ‫ﺍﻟﻤﺴﺘﻘﺒﻠﺔ ﻫﻰ ﻣﻦ ﺍﻟﻘﻤﺮ ﻋﻨﺪ 2.82‬ ‫ﺑﺎﻟﺸﻜﻞ ﺍﻟﻜﺎﻓﻲ ﻭ ﻗﺮﺭﺕ ﻋﺪﻡ ﻋﻤﻞ‬ ‫ﺩﺭﺟﺔ ﺷﺮﻕ ) ﺍﻟﻘﻤﺮ ‪ ( Astra‬ﻭ ﻗﻤﺖ‬ ‫ﺻﺎﺭﻱ ﺟﺪﻳﺪ ﻭ ﺍﺳﺘﺨﺪﺍﻡ ﺍﻟﺼﺎﺭﻱ‬ ‫ﺑﺘﺤﺮﻳﻚ ﺍﻟﻄﺒﻖ ﺣﺘﻰ ﺣﺼﻠﺖ ﻋﻠﻰ‬ ‫ﺍﻟﻘﺪﻳﻢ ﺑﻘﻄﺮ 06ﻣﻢ ﻭ ﺫﻟﻚ ﻟﻌﻤﻠﻴﺔ‬ ‫ﺇﺷﺎ ﺭﺍﺕ ﺫﺍﺕ ﺟﻮﺩﺓ ﻋﺎﻟﻴﺔ ، ﻛﻤﺜﺎﻝ ﻗﻴﻢ‬ ‫ﺍﻻﺧﺘﺒﺎﺭ ﺍﻟﻮﻗﺘﻴﺔ ﻭ ﻟﻜﻨﻨﻲ ﺍﻧﺼﺢ‬ ‫‪ MER = 17.4 dB‬ﺑﻞ ﻭ ﺍﻛﺜﺮ ﻣﻦ‬ ‫ﺑﺎﺳﺘﺨﺪﺍﻡ ﺍﻟﻘﻄﺮ ﺍﻟﻤﻨﺎﺳﺐ ﻟﻠﻄﺒﻖ‬ ‫ﺫﻟﻚ .‬ ‫ﺑﻘﻄﺮ 07ﻣﻢ .‬ ‫ﻭ ﻟﻜﻦ ﻣﺎﺫﺍ ﻋﻦ ﺍﺳﺘﻘﺒﺎﻝ ﺍﻹﺷﺎ ﺭﺍﺕ‬ ‫ﻭ ﻋﻨﺪ ﻭﺿﻊ ﺍﻟﻄﺒﻖ ﻋﻠﻰ ﺍﻟﺼﺎﺭﻱ‬ ‫ﺑﺪ ﺭﺍﺳﺔ‬ ‫ﻗﻤﺖ‬ ‫ﻟﻘﺪ‬ ‫؟‬ ‫ﺍﻟﻀﻌﻴﻔﺔ‬ ‫ﻭ ﺗﻢ ﺭﺑﻂ ﺍﻟﺼﻮﺍﻣﻴﻞ ، ﻻﺣﻈﺖ ﺃﻥ‬ ‫ﻧﻄﺎﻕ ﺍﻟﺘﻐﻄﻴﺔ ﻟﻠﻌﺪﻳﺪ ﻣﻦ ﺍﻷﻗﻤﺎﺭ‬ ‫ﺍﻟﻄﺒﻖ ﻣﺘﻴﻦ ﻭ ﺻﻠﺐ ، ﻭ ﻫﺬﺍ ﻣﻬﻢ‬ ‫ﺍﻟﺼﻨﺎﻋﻴﺔ ﻣﻦ ﻣﻮﻗﻊ ﻭ ﺃﺩﺭﻛﺖ ﺃﻥ‬ ‫ﺧﺼﻮﺻﺎ ﺑﺎﻟﻤﻨﺴﺒﺔ ﻟﻄﺒﻖ ﺑﻤﺜﻞ ﻫﺬﺍ‬ ‫ﺍﻟﻌﻴﺶ ﻓﻰ ﺑﻮﻟﻨﺪﺍ ﻭ ﺍﺳﺘﻘﺒﺎﻝ ﺍﻷﻗﻤﺎﺭ‬ ‫ﺍﻟﺤﺠﻢ ، ﺇﻥ ﺯﺍﻭﻳﺔ ﺍﻟﺮﺅﻳﺔ ﺻﻐﻴﺮﺓ ﺟﺪﺍ‬ ‫ﺍﻟﺼﻨﺎﻋﻴﺔ ﻳﻌﺘﺒﺮ ﻣﺘﻌﻪ ﻭ ﻟﻜﻦ ﻟﻴﺲ‬ ‫ﻭ ﺃﻱ ﺍﺭﺗﺠﺎﺝ ﺻﻐﻴﺮ ﺳﻮﻑ ﻳﺆﺛﺮ ﻋﻠﻰ‬ ‫ﻣﻦ ﺍﻟﻀﺮﻭﺭﻱ ﺍﺳﺘﺨﺪﺍﻡ ﻃﺒﻖ ﺑﻘﻄﺮ‬ ‫ﺍﻻﺳﺘﻘﺒﺎﻝ ﺑﻘﻮﺓ .‬ ‫ﻛﺒﻴﺮ ﺣﻴﺚ ﺃﻧﻬﺎ ﺗﻘﻊ ﻓﻰ ﻣﻨﺘﺼﻒ‬ ‫ﻭ ﺃﺗﻰ ﺍﻟﻮﻗﺖ ﻟﺘﺮﻛﻴﺐ ﻭﺣﺪﺓ ﺧﻔﺾ‬ ‫ﺃﻭﺭﻭﺑﺎ ﻭ ﺍﻹﺷﺎ ﺭﺍﺕ ﻗﻮﻳﺔ ﻟﺪﺭﺟﺔ ﻛﺎﻓﻴﺔ‬ ‫ﺍﻟﺸﻮﺷﺮﺓ ﻭ ﻗﺪ ﺗﻢ ﺗﺰﻭﻳﺪ ﺍﻟﻄﺒﻖ ﺑﺒﻮﻕ‬ ‫ﻻﺳﺘﺨﺪﺍﻡ ﻃﺒﻖ ﺑﻘﻄﺮ 09ﺳﻢ ﻭ ﺫﻟﻚ‬ ‫ﺗﻐﺬﻳﺔ ﻟﻮﺣﺪﺓ ﺧﻔﺾ ﺷﻮﺷﺮﺓ ﻣﻦ ﻧﻮﻉ‬ ‫ﻻﺳﺘﻘﺒﺎﻝ ﻣﻌﻈﻢ ﺍﻷﻗﻤﺎﺭ ﺍﻟﺼﻨﺎﻋﻴﺔ ،‬ ‫‪ Ku-Band‬ﻭ ﻫﺬﺍ ﺍﻟﺒﻮﻕ ﻣﺨﺼﺺ‬ ‫... ﻭ ﻟﻬﺬﺍ ﻓﺎﻥ ﻋﻤﻠﻴﺔ ﺍﻟﺘﺠﻤﻴﻊ ﺳﻬﻠﺔ ■‬ ‫‪42 TELE-satellite & Broadband — 06-07/2009 — www.TELE-satellite.com‬‬
  • 4. ‫ﺗﻢ ﺗﺮﻛﻴﺐ ﺁﺧﺮ ﺻﺎﻣﻮﻟﺔ ﻟﺘﺜﺒﻴﺖ ﺍﻟﻄﺒﻖ ﻋﻠﻰ ﺍﻟﺼﺎﺭﻱ ■‬ ‫ﻟﻘﺪ ﺍﺳﺘﺨﺪﻣﻨﺎ ﻭﺣﺪﺓ ﺧﻔﺾ ﺷﻮﺷﺮﺓ ﻣﺰﻭﺩﺓ ﺑﺒﻮﻕ ﺗﻐﺬﻳﺔ ﻭ ﻟﻬﺬﺍ ﻟﻢ ﻳﻜﻦ ﻫﻨﺎﻙ ■‬ ‫ﺣﺎﺟﺔ ﺇﻟﻰ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ﻭ ﺍﻟﺤﺎﻣﻞ ﺍﻷﺻﻠﻲ‬ ‫ﻓﻘﻂ ﻣﻊ ﺍﻷﻃﺒﺎﻕ ﺍﻟﻜﺒﻴﺮﺓ ﻳﻤﻜﻨﻚ ﺍﺳﺘﻘﺒﺎﻝ ﺇﺷﺎﺭﺍﺕ ﻣﺜﻞ ﻫﺬﻩ ■‬ ‫ﻫﺬﺍ ﻫﻮ ﺣﺎﻣﻞ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ ■‬ ‫ﺍﻟﻘﺮﺍءﺍﺕ ‪ MER‬ﻭ ‪. NM‬‬ ‫ﺗﻢ ﺗﻮﺟﻴﻪ ﺍﻟﻄﺒﻖ ﺇﻟﻰ ﺍﻟﻘﻤﺮ ‪ HOTBIRD‬ﻋﻨﺪ 31 ﺩﺭﺟﺔ ﺷﺮﻕ ■‬ ‫‪44 TELE-satellite & Broadband — 06-07/2009 — www.TELE-satellite.com‬‬
  • 5. ‫1.‪Fig‬‬ ‫) ﻣﻌﺪﻝ ﺧﻔﺾ ﺍﻟﻀﻮﺿﺎء = ‪NF‬‬ ‫ﻭ ﻛﺎﻥ ﻫﻨﺎﻙ ﺍﻟﻘﻠﻴﻞ ﻣﻦ ﺍﻷﻗﻤﺎﺭ ﺍﻟﺘﻰ‬ ‫‪. ( 0.3~0.4 dB‬‬ ‫ﻻ ﺗﻐﻄﻰ ﻣﻮﻗﻌﻲ ﺑﺤﻴﺚ ﺃﻥ ﻃﺒﻖ ﺑﻘﻄﺮ‬ ‫041ﺳﻢ ﻟﻦ ﺗﻜﻮﻥ ﻛﺎﻓﻴﺔ .‬ ‫ﻭ ﻛﻤﺎ ﺗﻮﻗﻌﺖ ﺃﻥ ﺟﻮﺩﺓ ﺍﻹﺷﺎﺭﺍﺕ‬ ‫ﻛﺎﻧﺖ ﺍﻓﻀﻞ ﺑﺸﻜﻞ ﻣﻠﺤﻮﻅ ، ﻭ ﻛﺎﻧﺖ‬ ‫ﻭ ﻟﻘﺪ ﻗﻤﺖ ﺑﺎﺧﺘﺒﺎﺭ ﺍﻻﺳﺘﻘﺒﺎﻝ‬ ‫ﻗﻴﻢ ‪ MER‬ﺍﻓﻀﻞ ﺏ 2-1 ‪ ، dB‬ﻟﻠﻄﺒﻖ‬ ‫ﺍﻟﻘﻤﺮ‬ ‫ﻣﻦ‬ ‫ﺍﻟﻀﻌﻴﻔﺔ‬ ‫ﻟﻺﺷﺎ ﺭﺍﺕ‬ ‫ﺑﻘﻄﺮ 9.0 ﻣﺘﺮ ﻭ 4-3 ‪ dB‬ﻟﻠﻄﺒﻖ‬ ‫22‪ EXPRESS AM‬ﻋﻨﺪ 35‬ ‫ﺑﻘﻄﺮ 6.0 ﻣﺘﺮ ، ﻭ ﺭﺑﻤﺎ ﺃﻥ ﺑﻌﺾ‬ ‫ﺩﺭﺟﺔ ﺷﺮﻕ ﺍﻟﺬﻯ ﺗﺒﺪﻭﺍ ﺇﺷﺎ ﺭﺍﺕ ﺗﻠﻚ‬ ‫ﻗ ﺮﺍء ﺍﻟﻤﺠﻠﺔ ﺳﻮﻑ ﻳﺘﻌﺠﺒﻮﻥ ﻟﺬﻟﻚ ﺣﻴﺚ‬ ‫ﺍﻟﻘﻤﺮ ﻳﺠﺐ ﺃﻥ ﺗﺴﺘﻘﺒﻞ ﺑﻄﺒﻖ ﺑﻘﻄﺮ‬ ‫ﺇﻥ ﻣﺴﺘﻮﻯ ﺍﻹﺷﺎﺭﺍﺕ ﻓﻰ ﺍﻟﻄﺒﻖ 041‪P‬‬ ‫051 – 091ﺳﻢ ) ﻗﻮﺓ ﺍﻹﺷﺎﺭﺓ < 04‬ ‫ﺍﻟﻤﻀﺒﻮﻁ ﺍﻟﺒﺆﺭﺓ ﻣﻦ ﺍﻷﻃﺒﺎﻕ ﺍﻷﺻﻐﺮ‬ ‫‪ ( dBW‬ﻭ ﻟﻘﺪ ﺃﻣﻠﺖ ﺃﻥ ﺍﺣﺼﻞ ﻋﻠﻰ‬ ‫ﺣﺠﻤﺎ ، ﻓﺒﺎﻟﻨﺴﺒﺔ ﻻﺳﺘﻘﺒﺎﻝ ﺍﻟﺘﻠﻴﻔﺰﻳﻮﻥ‬ ‫ﺷﺊ ﺑﺎﻟﻄﺒﻖ 041‪ P‬ﻭ ﺍﻟﺬﻯ ﻳﺠﺐ ﺃﻥ‬ ‫ﺍﻟﺮﻗﻤﻲ ﻳﺠﺐ ﺍﺳﺘﺨﺪﺍﻡ ﻃﺒﻖ ﺑﺤﺠﻢ ﺍﻛﺒﺮ‬ ‫ﻳﻜﻮﻥ 34-24 ‪ ، dBW‬ﻭ ﻋﻨﺪﻫﺎ‬ ‫) ﺍﻟﺸﻜﻞ ﺭﻗﻢ 1 ( .‬ ‫ﻳﺴﺘﻄﻴﻊ ﺍﻟﻄﺒﻖ ﺍﺳﺘﻘﺒﺎﻝ ﺍﻹﺷﺎ ﺭﺍﺕ .‬ ‫ﻭ ﺍﻋﺘﻤﺎﺩﺍ ﻋﻠﻰ ﺍﻟﻤﻘﺎﺭﻧﺔ ﺑﻴﻦ‬ ‫ﻭ ﻋﻨﺪﻣﺎ ﺣﺎﻭﻟﺖ ﺃﻥ ﺍﻭﺟﻪ ﺍﻟﻄﺒﻖ‬ ‫ﺍﻟﻘﻴﺎﺳﺎﺕ ﻳﻤﻜﻨﻨﻲ ﺃﻥ ﺃﻗﻮﻝ ﺃﻥ ﺍﻟﻄﺒﻖ‬ ‫041 ‪ PASAT‬ﺇﻟﻲ ﻫﺬﺍ ﺍﻟﻘﻤﺮ ﺃﺩﺭﻛﺖ‬ ‫041‪ P‬ﻳﺤﺼﻞ ﻋﻠﻰ ﺩﺭﺟﺔ ﻛﺴﺐ‬ ‫ﺃﻥ ﺻﺎﻣﻮﻟﺔ ﺭﺑﻂ ﺯﺍﻭﻳﺔ ﺍﻟﺘﺼﻌﻴﺪ‬ ‫ﻋﺎﻟﻴﺔ ﻟﻺﺷﺎﺭﺍﺕ ﻭ ﻫﺬﺍ ﻳﻌﻨﻰ ﺃﻥ ﺗﻜﻮﻳﺮ‬ ‫ﻟﺘﻮﺟﻴﻪ ﺍﻟﻄﺒﻖ ﺇﻟﻰ ﺍﻟﻘﻤﺮ ﻗﺼﻴﺮﺓ ﺟﺪﺍ‬ ‫ﺳﻄﺢ ﺍﻟﻄﺒﻖ ﺻﺤﻴﺢ ﻭ ﺃﻥ ﺍﻹﺷﺎﺭﺍﺕ ﻳﺘﻢ‬ ‫، ﻓﺄﻧﺎ ﺍﺣﺘﺎﺝ ﺇﻟﻰ ﺯﺍﻭﻳﺔ ﺗﺼﻌﻴﺪ 4.12‬ ‫ﻧﻄﺎﻕ ﺍﻟﺘﻐﻄﻴﺔ ﻟﻬﺬﺍ ﺍﻟﻘﻤﺮ ﻻ ﻳﺼﻞ ﺇﻟﻲ ﻣﺮﻛﺰ ﺍﻻﺧﺘﺒﺎﺭ ﻭ ﻟﻜﻦ ﻃﺒﻖ ‪■ Pasat‬‬ ‫ﺗﺮﻛﻴﺰﻫﺎ ﻋﻠﻰ ﺑﺆﺭﺓ ﺍﻟﻄﺒﻖ ﻛﻤﺎ ﺃﻥ ﺍﻟﻄﺒﻖ‬ ‫ﺩﺭﺟﺔ ، ﻭ ﻟﻜﻦ ﻫﺬﺍ ﻛﺎﻥ ﺧﺎﺭﺝ ﻧﻄﺎﻕ‬ ‫ﺍﺳﺘﻄﺎﻉ ﺍﻟﺘﻘﺎﻁ ﺑﻌﺾ ﺍﻹﺷﺎﺭﺍﺕ .‬ ‫ﻗﻮﻯ ﻭ ﻣﺘﻴﻦ ﻭ ﻳﺼﻤﺪ ﻟﻌﺪﺓ ﺳﻨﻮﺍﺕ .‬ ‫ﺍﻟﻄﺒﻖ ﺣﻴﺚ ﺃﻥ ﺍﻟ ﺰﺍﻭﻳﺔ ﻟﻠﻄﺒﻖ ﻳﺠﺐ‬ ‫ﺗﻌﻠﻴﻖ ﺍﻟﺨﺒﺮﺍء‬ ‫+‬ ‫ﺃﻥ ﺗﻜﻮﻥ ﻣﻦ 52 ﺇﻟﻰ 07 ﺩﺭﺟﺔ ، ﻭ‬ ‫ﻃﺒﻖ ﻗﻮﻯ ﺟﺪﺍ ﻭ ﻣﺘﻴﻦ ﻭ ﺟﻤﻴﻊ ﻣﻜﻮﻧﺎﺗﻪ ﺗﺘﻨﺎﺳﺐ ﻣﻊ‬ ‫ﺇﻥ ﺯﺍﻭﻳﺔ ﺍﻟﺘﺼﻌﻴﺪ ) 07-52 ﺩﺭﺟﺔ‬ ‫ﻛﺎﻥ ﻋﻠﻰ ﺧﻔﺾ ﺍﻟﻄﺒﻖ ﺇﻟﻰ ﺃﻗﺼﻰ‬ ‫ﺑﻌﻀﻬﺎ ، ﻭ ﻳﺘﻢ ﺗﻐﻠﻴﻒ ﺍﻟﻤﻜﻮﻧﺎﺕ ﺟﻴﺪﺍ ، ﺍﻟﺘﺼﻨﻴﻊ ﺍﻟﻌﺎﻡ‬ ‫ﻻ ﻳﺘﺮﻙ ﻟﺪﻳﻚ ﺷﺊ ﺗﺮﻏﺒﻪ .‬ ‫( ﻭ ﻫﻰ ﺩﺭﺟﺔ ﻣﻨﺎﺳﺒﺔ ﻟﻠﺪﻭﻝ ﺍﻟﻘﺮﻳﺒﺔ‬ ‫ﺩﺭﺟﺔ .‬ ‫ﻣﻦ ﺧﻂ ﺍﻻﺳﺘﻮﺍء ) ﻭ ﻣﻮﻗﻌﻲ ﻓﻰ ﻫﻮﻟﻨﺪﺍ‬ ‫-‬ ‫‪Jacek Pawlowski‬‬ ‫‪TELE-satellite‬‬ ‫) 52 ﺩﺭﺟﺔ ﺷﺮﻕ ( ﻭ ﻟﻜﻦ ﺑﺎﻟﻄﺒﻊ‬ ‫ﻭ ﺑﻌﺪ ﻓﻌﻞ ﻫﺬﺍ ﻻﺣﻈﺖ ﻃﻴﻒ‬ ‫ﻻ ﻳﻮﺟﺪ‬ ‫‪Test Center‬‬ ‫‪Poland‬‬ ‫ﻳﻌﺘﻤﺪ ﻫﺬﺍ ﻋﻠﻰ ﺍﻟﻘﻤﺮ ﺍﻟﻤ ﺮﺍﺩ ﺍﺳﺘﻘﺒﺎﻟﻪ‬ ‫‪EXPRESS‬‬ ‫ﻟﻠﻘﻤﺮ‬ ‫ﺍﻹﺷﺎ ﺭﺍﺕ‬ ‫، ﺇﻥ ﺷﺮﻛﺔ ‪ Pasat‬ﺗﻘﻮﻡ ﺃﻳﻀﺎ ﺑﺘﺼﻨﻴﻊ‬ ‫22‪ AM‬ﻋﻠﻰ ﺟﻬﺎﺯ ﻗﻴﺎﺱ ﺍﻹﺷﺎ ﺭﺍﺕ ﻭ‬ ‫‪TECHNIC‬‬ ‫‪DATA‬‬ ‫ﺍﻷﻃﺒﺎﻕ ﻃﺒﻘﺎ ﻟﻠﻤﻮﺍﺻﻔﺎﺕ ﺍﻟﺨﺎﺻﺔ ﺇﺫﺍ‬ ‫ﻛﺎﻧﺖ ﻗ ﺮﺍءﺍﺕ ﻗﻴﻢ ‪ C/N‬ﻋﻨﺪ ﻣﺴﺘﻮﻯ‬ ‫‪Manufacturer‬‬ ‫‪Pasat Anteny, Bulgaria‬‬ ‫ﺍﺣﺘﺠﺖ ﺇﻟﻰ ﺫﻟﻚ .‬ ‫8 ‪ ، dB‬ﻭ ﻛﺎﻧﺖ ﺍﻗﻞ ﻣﻦ ﺍﻟﻘﺪﺭ‬ ‫‪Telephone‬‬ ‫1136 6 053 953+ ,1193 6 053 953+‬ ‫ﺍﻟﻤﻨﺎﺳﺐ ﻟﻼﺳﺘﻘﺒﺎﻝ ، ﻓﻘﺪ 1 ﺩﻳﺴﻴﺒﻞ‬ ‫‪Fax‬‬ ‫1104 6 053 953+‬ ‫‪Website‬‬ ‫‪www.sat.bg‬‬ ‫ﻭ ﺇﺫﺍ ﻗﺮﺭﺕ ﺷ ﺮﺍء ﺇﺣﺪﻯ ﻫﺬﻩ ﺍﻷﻃﺒﺎﻕ‬ ‫ﺃﻭ ﺍﻛﺜﺮ ﻛﺎﻥ ﻛﺎﻓﻴﺎ ﻟﻤﺸﺎﻫﺪﺓ ﺍﻟﻘﻨﻮﺍﺕ .‬ ‫‪Email‬‬ ‫‪sales@pasat.bg‬‬ ‫ﺍﻟﻘﻮﻳﺔ ﻭ ﺳﻬﻠﺔ ﺍﻟﺘﺮﻛﻴﺐ ﺗﺬﻛﺮ ﺃﻥ‬ ‫‪Function‬‬ ‫‪Prime focus aluminum dish for Ku-Band‬‬ ‫‪Model‬‬ ‫041 ‪P‬‬ ‫ﺍﻟﺼﺎﺭﻱ ﻳﺠﺐ ﺃﻥ ﻳﻜﻮﻥ ﺑﻘﻄﺮ 07ﻣﻢ‬ ‫ﻭ ﻟﻜﻦ ﻛﺎﻥ ﻫﻨﺎﻙ ﺳﻮء ﺣﻆ ﻭ‬ ‫‪Diameter‬‬ ‫‪140 cm‬‬ ‫ﻭ ﺃﻥ ﻳﻜﻮﻥ ﻟﺪﻳﻚ ﻭﺣﺪﺓ ﺧﻔﺾ ﺷﻮﺷﺮﺓ‬ ‫ﺃﺧﻴ ﺮﺍ ﻗﺮﺭﺕ ﺇﻟﻰ ﺍﻻﻧﺘﻘﺎﻝ ﺇﻟﻰ ﻗﻤﺮ‬ ‫‪Focus‬‬ ‫‪50 cm‬‬ ‫ﻣﺰﻭﺩ ﺑﺸﻔﺔ ﻟﻠﺘﺜﺒﻴﺖ ﻋﻠﻰ ﺑﻮﻕ ﺍﻟﺘﻐﺬﻳﺔ‬ ‫ﺫﺍﺕ ﺇﺷﺎ ﺭﺍﺕ ﺃﻗﻮﻯ ﻭ ﻫﻮ ﺍﻟﻘﻤﺮ‬ ‫‪F/D‬‬ ‫573.0‬ ‫‪Gain @ 11.350 GHz‬‬ ‫‪42.2 dB‬‬ ‫ﺑﻌﺪﺩ 4 ﺻﻮﺍﻣﻴﻞ .‬ ‫‪ HOTBIRD‬ﻋﻨﺪ 31 ﺩﺭﺟﺔ ﺷﺮﻕ‬ ‫‪Gain @ 12.125 GHz‬‬ ‫‪42.8 dB‬‬ ‫ﻭ ﻗﻴﺎﺱ ﺟﻮﺩﺓ ﺍﻹﺷﺎ ﺭﺍﺕ ﻭ ﻣﻘﺎﺭﻧﺔ‬ ‫‪Gain @ 12.626 GHz‬‬ ‫‪43.5 dB‬‬ ‫ﺇﻥ ﺃﻃﺒﺎﻕ ﺷﺮﻛﺔ ‪ Pasat‬ﺗﺘﻨﺎﺳﺐ‬ ‫ﺍﻟﻄﺒﻖ ﺑﺄﻃﺒﺎﻕ ﺃﺧﺮﻯ ﺑﻘﻄﺮ ﻣﺘﺮ 6.0‬ ‫)°24 ‪Noise temperature (at elevation‬‬ ‫‪47 K‬‬ ‫)‪Opening angle (-3dB‬‬ ‫°52.1<‬ ‫ﻣﻊ ﺍﻻﺣﺘ ﺮﺍﻓﻴﻴﻦ ﻭ ﺍﻟﻤﺴﺘﺨﺪﻡ ﺍﻟﻌﺎﺩﻱ‬ ‫ﻭ 9.0 ﻣﺘﺮ ، ﻭ ﻗﺪ ﺗﻢ ﺗﺠﻬﻴﺰ ﺍﻷﻃﺒﺎﻕ‬ ‫‪Thickness‬‬ ‫‪1.2 mm‬‬ ‫ﺇﺫﺍ ﺃﺭﺍﺩ ﺇﺷﺎ ﺭﺍﺕ ﺛﺎﺑﺘﺔ .‬ ‫ﺑﻮﺣﺪﺍﺕ ﺧﻔﺾ ﺷﻮﺷﺮﺓ ﺑﺠﻮﺩﺓ ﻋﺎﻟﻴﺔ‬ ‫‪Reflector mass‬‬ ‫‪6 kg‬‬ ‫‪Supporting hardware mass‬‬ ‫‪5.2 kg‬‬ ‫‪46 TELE-satellite & Broadband — 06-07/2009 — www.TELE-satellite.com‬‬