1. ‫ﺳﻮﻳﺘﺶ ﻣﺘﻌﺪﺩ‬
‫‪SPAUN SMS‬‬
‫‪9989 U‬‬
‫ﺷﻄﻴﺮﺓ ﺳﻮﻳﺘﺶ ﻣﺘﻌﺪﺩ‬ ‫ﻭﺿﻊ ﻋﺪﺩ 2 ﺳﻮﻳﺘﺶ ﻣﺘﻌﺪﺩ ‪ SMS 9989 U‬ﺃﻋﻠﻰ ﺑﻌﻀﻬﻤﺎ ﻭ ﻛﻞ ﻣﻨﻬﻤﺎ ﻳﺤﺼﻞ‬
‫ﻋﻠﻰ ﺇﺷﺎﺭﺓ ﻣﻦ ﻋﺪﺩ 2 ﻭﺣﺪﺓ ﺧﻔﺾ ﺷﻮﺷﺮﺓ ﺭﺑﺎﻋﻴﺔ ﺍﻟﻤﺨﺎﺭﺝ ﻭ ﻳﻤﻜﻦ ﺇﺿﺎﻓﺔ ﻣﻮﺻﻞ‬
‫‪ SMS 9210 F‬ﻟﻜﻞ ﺭﻳﺴﻴﻔﺮ ﻭ ﻟﻬﺬﺍ ﻳﻤﻜﻦ ﺗﻮﺻﻴﻞ ﻛﻞ ﺭﻳﺴﻴﻔﺮ ﺑﻌﺪﺩ 4 ﻭﺣﺪﺍﺕ‬
‫ﺧﻔﺾ ﺷﻮﺷﺮﺓ‬
‫.‪Tap gain. Vertical polarization transponders‬‬
‫ﺍﻟﺮﻳﺴﻴﻔﺮ ﺍﻟﻤﻨﻔﺼﻠﺔ ﻭ ﺇﺫﺍ ﻛﻨﺖ ﺗﺴﺘﻘﺒﻞ‬ ‫ﺇﻥ ﻧﻈﺎﻡ ﺍﺳﺘﻘﺒﺎﻝ ﺍﻷﻗﻤﺎﺭ ﺍﻟﺼﻨﺎﻋﻴﺔ‬
‫ﺍﻛﺜﺮ ﻣﻦ ﻗﻤﺮ ﺻﻨﺎﻋﻰ ﻓﺎﻥ ﺍﺳﺘﺨﺪﺍﻡ‬ ‫ﺍﻟﻤﺘﻌﺪﺩﺓ ﻳﻌﻨﻰ ﺍﺳﺘﺨﺪﺍﻡ ﺃﻃﺒﺎﻕ ﻣﺘﺤﺮﻛﺔ‬
‫ﺳﻮﻳﺘﺶ ﺑﺴﻴﻂ ‪ DiSEqC‬ﻟﻦ ﻳﻤﻜﻨﻚ‬ ‫ﺃﻭ ﺃﻃﺒﺎﻕ ﻣﺘﻌﺪﺩﺓ ﺍﻟﺘﻐﺬﻳﺔ ﻭ ﺇﺫﺍ ﻛﻨﺖ‬ ‫ﺇﻥ ﺳﻮﻳﺘﺶ ﻣﺘﻌﺪﺩ ‪ SMS 9989 U‬ﻭﺍﺣﺪ ﻣﻦ ﺷﺮﻛﺔ ‪ SPAUN‬ﻛﺎﻓﻲ ﻟﺘﺸﻐﻴﻞ ﻋﺪﺩ 8‬
‫ﺃﺟﻬﺰﺓ ﺭﻳﺴﻴﻔﺮ ﻛﻞ ﻣﻨﻬﺎ ﻳﻤﻜﻨﻪ ﺍﻟﺤﺼﻮﻝ ﻋﻠﻰ ﺇﺷﺎﺭﺍﺕ ﻣﻦ ﻋﺪﺩ 2 ﻭﺣﺪﺓ ﺧﻔﺾ ﺷﻮﺷﺮﺓ‬
‫ﺭﺑﺎﻋﻴﺔ ﺍﻟﻤﺨﺎﺭﺝ .‬
‫.‪Tap gain. Horizontal polarization transponders‬‬
‫‪TECHNIC‬‬
‫‪DATA‬‬
‫‪Manufacturer‬‬ ‫22 .‪SPAUN Electronic, Byk-Gulden-Str‬‬
‫‪D-78224 Singen, Germany‬‬
‫‪Internet‬‬ ‫‪www.spaun.de‬‬
‫‪E-mail‬‬ ‫‪info@spaun.de‬‬
‫‪Phone‬‬ ‫03768-1377 - 94+‬
‫‪Fax‬‬ ‫20246-1377 - 94+‬
‫‪Model‬‬ ‫‪SMS 9989 U‬‬
‫‪Description‬‬ ‫‪Extendable Multiswitch‬‬
‫‪Inputs‬‬ ‫‪8 satellite + 1 terrestrial‬‬
‫‪Receiver outputs‬‬ ‫8‬
‫‪Cascade outputs‬‬ ‫1+8‬
‫‪Input frequency‬‬ ‫).‪950-2200 MHz (Sat.) and 5-862 MHz (Terr‬‬
‫ﻣﻦ ﺫﻟﻚ ﻭ ﺳﻮﻑ ﺗﺤﺘﺎﺝ ﺇﻟﻲ ﺳﻮﻳﺘﺶ‬ ‫ﺗﻔﻀﻞ ﺍﻟﺤﺼﻮﻝ ﻋﻠﻰ ﺯﻣﻦ ﺍﻗﺼﺮ ﻓﻰ‬ ‫‪DiSEqC‬‬ ‫)‪2.0 (including tone burst‬‬
‫ﻣﺘﻌﺪﺩ ﺭﺑﻤﺎ ﻳﻜﻮﻥ ﺍﻟﺴﻮﻳﺘﺶ ‪SMS‬‬ ‫ﺍﻟﺘﻨﻘﻞ ﺑﻴﻦ ﺍﻷﻗﻤﺎﺭ ﺑﻐﺾ ﺍﻟﻨﻈﺮ ﻋﻦ‬ ‫‪IF tap gain‬‬ ‫‪-3…+1 dB‬‬
‫‪ 9989 U‬ﻣﻦ ﺷﺮﻛﺔ ‪ SPAUN‬؟‬ ‫ﺍﻛﺒﺮ ﻋﺪﺩ ﻣﻦ ﺍﻷﻗﻤﺎﺭ ﻓﺴﻮﻑ ﺗﺨﺘﺎﺭ‬ ‫‪IF pass-through loss‬‬ ‫‪2...5 dB‬‬
‫ﻭ ﻟﻜﻦ ﻣﺎ ﻫﻮ ﺍﻟﺸﻲء ﺍﻟﺨﺎﺹ ﻭ ﺍﻟﻬﺎﻡ‬ ‫ﺍﻻﺧﺘﻴﺎﺭ ﺍﻟﺜﺎﻧﻲ ، ﻛﻤﺎ ﺗﻮﺟﺪ ﻣﻴﺰﺓ ﺃﺧﺮﻯ‬ ‫‪Terrestrial tap loss‬‬ ‫‪24 dB‬‬
‫ﺑﻬﺬﺍ ﺍﻟﻤﻮﺩﻳﻞ ؟ ﻭ ﻣﺎ ﻫﻮ ﻣﻌﻨﻰ ﻛﻠﻤﺔ‬ ‫ﺇﺿﺎﻓﻴﺔ ﻓﻰ ﺍﻟﻨﻈﺎﻡ ﺍﻟﺜﺎﻧﻲ ﻫﻰ ﺇﻣﻜﺎﻧﻴﺔ‬ ‫‪Terrestrial pass-through loss‬‬ ‫‪5 dB‬‬
‫"ﺷﻄﻴﺮﺓ" ﻣﻊ ﺍﻟﺴﻮﻳﺘﺶ ﺍﻟﻤﺘﻌﺪﺩ ؟‬ ‫ﺗﻮﺯﻳﻊ ﺍﻹﺷﺎﺭﺍﺕ ﺇﻟﻰ ﺍﻟﻌﺪﻳﺪ ﻣﻦ ﺃﺟﻬﺰﺓ‬ ‫‪Current drawn from receiver‬‬ ‫).‪95 mA + LNB (320 mA max‬‬
‫‪Operating temperature range‬‬ ‫‪-20… + 50° C/dry indoor use‬‬
‫‪Tap gain vs. receiver output‬‬
‫ﺗﻌﻠﻴﻖ ﺍﻟﺨﺒﺮﺍء‬
‫+‬
‫ﺇﻥ ﺍﻟﺴﻮﻳﺘﺶ ﺍﻟﻤﺘﻌﺪﺩ ‪ SMS 9989 U‬ﻻ ﻳﻌﻄﻰ‬
‫ﻣﻈﻬﺮﺍ ﺧﺎﺭﺟﻴﺎ ﺣﺪﻳﺜﺎ ﻭ ﻟﻜﻨﻪ ﻣﻜﺘﻤﻞ ﻣﻦ ﺟﻤﻴﻊ ﺍﻟﻤﺰﺍﻳﺎ‬
‫ﻭ ﻗﺪ ﻓﺎﻗﺖ ﺍﻻﺧﺘﺒﺎﺭﺍﺕ ﻣﺎ ﺃﻋﻠﻦ ﻋﻨﻪ ﻣﻦ ﻣﻮﺍﺻﻔﺎﺕ‬
‫ﺑﺎﺳﺘﺜﻨﺎء ﻭﺣﺪﺍﺕ ﺍﻻﻣﺘﺪﺍﺩ ، ﻭ ﻫﺬﻩ ﺍﻟﻤﺤﻮﻻﺕ ﺍﻟﻤﺘﻌﺪﺩﺓ‬
‫ﻳﻤﻜﻦ ﺗﻮﺻﻴﻠﻬﺎ ﺑﺒﻌﺾ ﺑﻤﺎ ﻳﺸﺒﻪ ﺍﻟﺸﻄﻴﺮﺓ ﺑﻤﺎ ﻳﺴﻤﺢ‬ ‫‪Peter Miller‬‬
‫ﺑﺠﻌﻞ ﺍﻟﻤﺪﺍﺧﻞ ﻣﻦ 2 ﺇﻟﻰ 4 ﺃﻗﻤﺎﺭ ﺻﻨﺎﻋﻴﺔ .‬ ‫‪TELE-satellite‬‬
‫‪Test Center‬‬
‫‪Poland‬‬
‫-‬
‫ﻻ ﻳﻮﺟﺪ‬
‫‪TELE-satellite International — www.TELE-satellite.com‬‬

2. ‫‪TEST REPORT‬‬ ‫‪Multiswitch‬‬
‫ﺩﺭﺟﺔ ﺍﻟﻜﺴﺐ ﻭ ﻻ ﻳﻬﻢ ﺳﻮﺍء ﻛﺎﻧﺖ‬ ‫ﻭ ﻳﻤﻜﻨﻚ ﺗﺮﻛﻴﺐ ﻣﻮﺻﻼﺕ ﺍﻋﺘﻤﺎﺩﺍ‬ ‫ﻭ ﺇﺫﺍ ﻛﻨﺖ ﺗﺮﻳﺪ ﺗﻮﺻﻴﻞ ﺍﻟﻮﺣﺪﺍﺕ‬ ‫ﺇﻥ ﺍﻻﻧﻄﺒﺎﻉ ﺍﻷﻭﻝ ﺃﻣﺮ ﻫﺎﻡ ﻓﻌﻨﺪ‬
‫ﺍﻹﺷﺎﺭﺓ ﺭﺃﺳﻴﺔ ﺃﻭ ﺃﻓﻘﻴﺔ ﺣﺰﻣﺔ ﻣﺮﺗﻔﻌﺔ‬ ‫ﻋﻠﻰ ﻋﺪﺩ ﺃﺟﻬﺰﺓ ﺍﻟﺮﻳﺴﻴﻔﺮ ﺍﻟﺬﻯ ﺗﺮﻳﺪ‬ ‫ﺑﺒﻌﻀﻬﺎ ﻓﻠﻦ ﺗﻀﻄﺮ ﺇﻟﻲ ﻋﻤﻞ ﻛﺎﺑﻞ‬ ‫ﻓﺘﺢ ﻋﺒﻮﺓ ﺍﻟﺴﻮﻳﺘﺶ ﺍﻟﻤﺘﻌﺪﺩ ﺍﻟﻘﺎﺩﻡ‬
‫ﺃﻭ ﻣﻨﺨﻔﻀﺔ ﻓﻘﻂ ﻓﺎﻥ ﻣﻘﻴﺎﺱ ﻭﺍﺣﺪ ﻓﻘﻂ‬ ‫ﺍﺳﺘﺨﺪﺍﻣﻬﺎ .‬ ‫ﻣﺤﻮﺭﻱ ﻳﻮﺻﻞ ﺑﻴﻨﻬﻤﺎ ﻋﻦ ﻃﺮﻳﻖ‬ ‫ﻟﻨﺎ ﻣﻦ ﺷﺮﻛﺔ ‪ ، SPAUN‬ﻟﻢ ﻧﺠﺪ‬
‫ﻳﻤﺜﻞ ﺩﺭﺟﺔ ﺍﻟﻔﻘﺪﺍﻥ ﺯ ﻫﻮ )2.1- ‪(dB‬‬ ‫ﻣﻮﺻﻞ ‪ F‬ﻭ ﻟﻜﻦ ﻣﻮﺩﻳﻞ ‪SMS‬‬ ‫ﻓﻘﻂ ﺃﻥ ﺍﻟﺘﺼﻨﻴﻊ ﺍﻟﻌﺎﻡ ﻟﻠﺴﻮﻳﺘﺶ‬
‫، ﻭ ﻟﻜﻦ ﺭﺑﻤﺎ ﺃﻥ ﺍﻟﻤﻮﺻﻞ ‪SMS‬‬ ‫ﻭ ﻳﻤﻜﻦ ﺗﺜﺒﻴﺖ ﺍﺳﻔﻞ ﺍﻟﺴﻮﻳﺘﺶ‬ ‫‪ 9989 U‬ﻳﻤﻜﻦ ﺗﻮﺻﻴﻠﻪ ﺑﺎﻟﻤﺤﻮﻻﺕ‬ ‫ﺍﻟﻤﺘﻌﺪﺩ ﺟﻴﺪ ﺟﺪﺍ ﺑﻞ ﺃﻳﻀﺎ ﻭﺟﺪﻧﺎ‬
‫‪ 9210 F‬ﻗﺪ ﻳﺤﺪﺙ ﻭﻫﻦ ﻓﻰ ﺍﻹﺷﺎﺭﺓ‬ ‫ﺍﻟﺮﺋﻴﺴﻲ ‪ SMS 9989 U‬ﻭ ﺫﻟﻚ‬ ‫ﺍﻷﺧﺮﻯ ﺑﻄﺮﻳﻘﺔ ﺳﻬﻠﺔ ﻭ ﻫﺬﺍ ﻫﻮ‬ ‫ﻛﺘﻴﺐ ﺗﺸﻐﻴﻠﻪ ﻣﻌﺪ ﺑﺎﻟﻠﻐﺔ ﺍﻷﻟﻤﺎﻧﻴﺔ ﻭ‬
‫؟ ﻻ ﻟﻴﺲ ﺫﻟﻚ ﺻﺤﻴﺤﺎ ﻓﻘﻂ ﻭﺟﺪﻧﺎ ﺃﻥ‬ ‫ﻗﺒﻞ ﻋﻤﻞ ﺗﻮﺻﻴﻼﺕ ﺍﻟﺸﻄﻴﺮﺓ ، ﻓﻬﻨﺎﻙ‬ ‫ﺍﻟﺴﺒﺐ ﺍﻟﺜﺎﻧﻲ ﻟﻠﺮﺟﻮﻉ ﺇﻟﻲ ﻛﺘﻴﺐ‬ ‫ﺍﻹﻧﺠﻠﻴﺰﻳﺔ ﺍﻟﺬﻯ ﻳﻮﺿﺢ ﺑﻜﻞ ﺳﻬﻮﻟﺔ‬
‫ﺍﻟﻤﻘﺪﺍﺭ ﻫﻮ 3 ‪ . dB‬ﻭ ﻟﻔﻘﺪﺍﻥ ﺍﻹﺷﺎﺭﺓ‬ ‫ﻣﺎﺯﺍﻝ ﻭﺣﺪﺍﺕ ﻟﺘﺸﻐﻴﻞ ﺍﻟﻘﻤﺮ ‪ A‬ﻭ ‪B‬‬ ‫ﺍﻟﺘﻌﻠﻴﻤﺎﺕ .‬ ‫ﻃﺮﻳﻘﺔ ﺍﻟﺘﻮﺻﻴﻞ ﺑﺎﻟﺴﻮﻳﺘﺶ ﺍﻟﻤﺘﻌﺪﺩ‬
‫) ﺑﻴﻦ ﻭﺣﺪﺓ ﺧﻔﺾ ﺍﻟﺸﻮﺷﺮﺓ ﻭ ﻣﺨﺎﺭﺝ‬ ‫ﻭ ﻓﻰ ﺍﻷﻋﻠﻰ ﻳﻮﺟﺪ ﻣﻮﺻﻼﺕ ﻟﻌﺪﺩ 2‬ ‫ﻟﻠﻤﻮﺩﻳﻞ ‪ ، SMS 9989 U‬ﻛﻤﺎ‬
‫ﺍﻟﺘﻮﺻﻴﻼﺕ ( ﻗﺪ ﺍﺳﺘﻄﻌﻨﺎ ﻣﻌﺮﻓﺘﻪ‬ ‫ﻗﻤﺮ ﺻﻨﺎﻋﻰ ﺇﺿﺎﻓﻲ ‪ C‬ﻭ ‪. D‬‬ ‫ﻭ ﻟﻘﺪ ﺃﺭﺩﻧﺎ ﻣﻌﺮﻓﺔ ﻭﻇﺎﺋﻒ ﻋﺪﺩ 4‬ ‫ﺍﻋﺘﻨﺖ ﺍﻟﺸﺮﻛﺔ ﺍﻟﻤﻨﺘﺠﺔ ﻓﻰ ﺗﻮﺿﻴﺢ‬
‫ﺑﻤﻘﺪﺍﺭ5.2 ‪ dB‬ﻋﻠﻰ ﻋﻜﺲ ﻣﺎ ﺗﻢ‬ ‫ﻭ ﻧﺸﻜﺮ ﻫﻨﺎ ﻭﺟﻮﺩ ﻣﻮﺻﻼﺕ ‪SMS‬‬ ‫ﻭﺣﺪﺍﺕ ﺻﻐﻴﺮﺓ ﻣﺮﻓﻘﺔ ﻣﻊ ﺍﻟﺴﻮﻳﺘﺶ‬ ‫ﻃﺮﻳﻘﺔ ﺗﻮﺻﻴﻞ ﻭﺣﺪﺓ ﺧﻔﺾ ﺍﻟﺸﻮﺷﺮﺓ‬
‫ﺍﻹﻋﻼﻥ ﻋﻨﻪ ﻭ ﻫﻮ 2...5 ‪. dB‬‬ ‫‪ " 9210 F SAT‬ﺍﻟﺸﻄﻴﺮﺓ " ﻭ ﺍﻵﻥ‬ ‫ﺍﻟﻤﺘﻌﺪﺩ ﺍﻟﺮﺋﻴﺴﻲ ﻭ ﺟﻤﻴﻌﻬﺎ ﺗﻢ‬ ‫ﺍﻟﺮﺑﺎﻋﻴﺔ ﺑﺎﻟﺴﻮﻳﺘﺶ ﺍﻟﻤﺘﻌﺪﺩ ﻭ ﻣﻘﺪﺍﺭ‬
‫ﻧﺴﺘﻄﻴﻊ ﺗﻮﺻﻴﻞ ﻟﻴﺲ 2 ﻗﻤﺮ ﺻﻨﺎﻋﻰ‬ ‫ﺗﺼﻤﻴﻤﻬﺎ ﻟﻤﻮﺻﻼﺕ 0129 ‪SMR‬‬ ‫ﺍﻟﻄﺎﻗﺔ ﺍﻟﻤﺴﺤﻮﺑﺔ ﻣﻦ ﺍﻟﺮﻳﺴﻴﻔﺮ‬
‫ﻭ ﻳﻈﻬﺮ ﺍﻟﺮﺳﻢ ﺍﻟﺜﺎﻟﺚ ﺃﻥ ﻣﻘﺪﺍﺭ‬ ‫ﺑﻞ ﺃﺭﺑﻌﺔ ﺃﻗﻤﺎﺭ ﺻﻨﺎﻋﻴﺔ ﺑﺎﻟﺴﻮﻳﺘﺶ‬ ‫‪ F SAT‬ﻭ ﻟﻘﺪ ﻋﻠﻤﻨﺎ ﺃﻥ ﻏﺮﺽ‬ ‫ﻟﺘﺸﻐﻴﻞ ﺍﻟﺪﻭﺍﺋﺮ ﺍﻹﻟﻜﺘﺮﻭﻧﻴﺔ ﻟﻠﺴﻮﻳﺘﺶ‬
‫ﺍﻟﺨﺴﺎﺭﺓ ﻣﺘﺴﺎﻭﻱ ﻓﻰ ﺟﻤﻴﻊ ﺍﻟﺤﺎﻻﺕ .‬ ‫ﺍﻟﻤﺘﻌﺪﺩ .‬ ‫ﻫﺬﻩ ﺍﻟﻮﺣﺪﺍﺕ ﻫﻮ ﻋﻤﻞ ﻣﺎ ﻳﺸﺒﻪ‬ ‫) ﺍﻧﻈﺮ ﺍﻟﺼﻮﺭﺓ ( .‬
‫ﻭ ﺃﺭﺩﻧﺎ ﻣﻌﺮﻓﺔ ﻣﻘﺪﺍﺭ ﺩﺭﺟﺔ ﺍﻟﻀﻌﻒ‬ ‫"ﺑﺎﻟﺸﻄﻴﺮﺓ" ﻟﻠﺘﻮﺻﻴﻞ ﺑﺎﻟﺴﻮﻳﺘﺶ‬
‫ﻓﻰ ﻣﺨﺎﺭﺝ ﺍﻹﺷﺎﺭﺓ ﻓﻘﺪ ﺳﻤﺢ ﻟﻚ ﺑﻀﺒﻂ‬ ‫ﻭ ﺑﻬﺬﺍ ﻳﻤﻜﻦ ﺗﻮﺻﻴﻞ ﻫﺬﻩ ﺍﻻﻣﺘﺪﺍﺩﺍﺕ‬ ‫ﺍﻟﺮﺋﻴﺴﻲ ‪ ، SMS 9989 U‬ﻭ ﺑﺬﻟﻚ‬ ‫ﻭ ﻟﻘﺪ ﻗﺮﺭﻧﺎ ﻓﺤﺺ ﻛﺘﻴﺐ ﺗﻌﻠﻴﻤﺎﺕ‬
‫ﺩﺭﺟﺔ ﺍﻷﺿﻌﺎﻑ 0, 4- ‪dB, -8 dB‬‬ ‫ﻣﻊ ﺍﻟﺴﻮﻳﺘﺶ ﺍﻟﻤﺘﻌﺪﺩ ﻣﻦ ‪SPAUN‬‬ ‫ﻳﻤﻜﻨﻚ ﻭﺿﻊ ﻭﺣﺪﺓ ﻓﻮﻕ ﺃﺧﺮﻯ ﻭ‬ ‫ﺍﻟﺘﺸﻐﻴﻞ ﻟﺴﺒﺒﻴﻦ ﺍﻷﻭﻝ ﻟﻠﺘﺄﻛﺪ ﻣﻦ‬
‫ﺃﻭ –21 ‪ ، dB‬ﻭ ﻟﻘﺪ ﻓﺤﺼﻨﺎ ﺍﻟﺪﻗﺔ‬ ‫ﻟﻴﺲ ﻓﻘﻂ ﻃﺒﻘﺎ ﻟﻌﺪﺩ ﺃﺟﻬﺰﺓ ﺍﻟﺮﻳﺴﻴﻔﺮ‬ ‫ﺍﺿﻐﻂ ﻗﻠﻴﻼ ﺣﺘﻰ ﺳﻤﺎﻉ ﺻﻮﺕ ﻧﻘﺮﺓ‬ ‫ﻓﻰ ﺍﻟﻤﻮﺩﻳﻞ ‪ SMS 9989 U‬ﻳﺘﻢ‬
‫ﻣﻦ ﺧﻼﻝ ± 1 ‪ dB‬ﻭ ﺍﻟﺘﻰ ﺗﻌﺘﺒﺮ‬ ‫ﺍﻟﻤﻮﺻﻠﺔ ﺑﻞ ﺃﻳﻀﺎ ﻋﺪﺩ ﻭﺣﺪﺍﺕ ﺧﻔﺾ‬ ‫ﻭ ﺗﻼﻣﺲ ﺍﻹﻃﺎﺭ ﺍﻟﺒﻼﺳﺘﻴﻜﻲ ﻟﻜﻠﻰ‬ ‫ﺗﻮﺻﻴﻞ ﺍﻟﺴﻮﻳﺘﺶ ﺍﻟﺮﺋﻴﺴﻲ ﺍﻟﻤﺴﺘﺨﺪﻡ‬
‫ﺍﻛﺜﺮ ﻣﻦ ﻛﺎﻓﻴﺔ ﻟﻠﻤﻀﻌﻒ ﺍﻟﻤﺴﺘﺨﺪﻡ‬ ‫ﺍﻟﺸﻮﺷﺮﺓ ﺍﻟﺮﺑﺎﻋﻴﺔ ﺍﻟﻤﻮﺻﻠﺔ ﻓﻼ ﺷﺊ‬ ‫ﺍﻟﺠﺎﻧﺒﻴﻦ ﻭ ﻟﻜﻦ ﺍﻟﺸﻄﻴﺮﺓ ﻟﻢ ﺗﻜﺘﻤﻞ‬ ‫ﻟﻠﺘﻮﺻﻴﻞ ) ﻣﺒﺎﺷﺮﺓ ﻣﻊ ﻭﺣﺪﺍﺕ ﺧﻔﺾ‬
‫ﻟﻤﺴﺘﻮﻯ ﺍﻹﺷﺎﺭﺓ ﺍﻋﺘﻤﺎﺩﺍ ﻋﻠﻰ ﻃﻮﻝ‬ ‫ﻳﻤﻨﻊ ﻣﻦ ﺗﻮﺻﻴﻞ ﻛﻞ ﻫﺬﺍ ﺑﺒﻌﻀﻪ ﺑﻤﺎ‬ ‫ﺑﻌﺪ ، ﺍﻵﻥ ﺧﺬ ﺍﻟﻮﺣﺪﺓ 0129 ‪SMS‬‬ ‫ﺍﻟﺸﻮﺷﺮﺓ ( ﻭ ﺇﻥ ﻭﺣﺪﺍﺕ ﺍﻻﻣﺘﺪﺍﺩ )‬
‫ﺍﻟﻜﺎﺑﻞ ﺍﻟﻤﺴﺘﺨﺪﻡ .‬ ‫ﻳﺸﺒﻪ ﺍﻟﺸﻄﻴﺮﺓ ، ﺇﻥ ﺍﻟﺘﺼﻤﻴﻢ ﺑﺤﺪﺓ‬ ‫‪ F‬ﻭ ﺃﺭﻓﻘﻬﺎ ﺑﺎﻟﺠﺎﻧﺐ ﺍﻷﻳﻤﻦ ﺃﻭ ﺍﻷﻳﺴﺮ‬ ‫ﻳﺘﻢ ﺗﻮﺻﻴﻠﻬﺎ ﺑﻤﺨﺎﺭﺝ ﺍﻟﺴﻮﻳﺘﺶ‬
‫ﺍﻷﻗﺼﻰ ﻳﺘﻀﻤﻦ ﻋﺪﺩ 6 ﺳﻮﻳﺘﺶ‬ ‫ﻟﻠﺴﻮﻳﺘﺶ ﺍﻟﻤﺘﻌﺪﺩ ﺍﻟﺮﺋﻴﺴﻲ ﻭ ﺑﻬﺬﻩ‬ ‫ﺍﻟﺮﺋﻴﺴﻲ ( ﻭ ﺃﻥ ﺗﻜﻮﻥ ﻣﻦ ﻧﻔﺲ ﻧﻮﻉ‬
‫ﻭ ﻟﻢ ﻧﺬﻛﺮ ﻣﻦ ﻗﺒﻞ ﺃﻥ ﺍﻟﺴﻮﻳﺘﺶ‬ ‫ﻣﺘﻌﺪﺩ 6 ‪ ) SMS 9989 U‬ﺛﻼﺛﺔ‬ ‫ﺍﻟﻄﺮﻳﻘﺔ ﻓﺎﻧﻚ ﺗﺠﻤﻊ ﻣﺨﺎﺭﺝ ﻧﻔﺲ‬ ‫ﺍﻟﺴﻮﻳﺘﺶ ﺍﻟﺮﺋﻴﺴﻲ ﻭ ﻟﺬﻟﻚ ﻻ ﻳﺠﺐ‬
‫ﺍﻟﻤﺘﻌﺪﺩ ‪ SMS 9989 U‬ﻻ ﻳﺘﻢ‬ ‫ﺷﻄﺎﺋﺮ ﺗﻢ ﺗﻮﺻﻴﻠﻬﻤﺎ ﺑﻌﺪﺩ 4 ﻭﺣﺪﺍﺕ‬ ‫ﺃﺟﻬﺰﺓ ﺍﻟﺮﻳﺴﻴﻔﺮ ) ﻣﺜﺎﻝ ﺍﻟﺮﻳﺴﻴﻔﺮ‬ ‫ﺷ ﺮﺍء 2 ﻣﻮﺩﻳﻞ ﻣﺨﺘﻠﻒ ، ﻭ ﻃﺒﻴﻌﻴﺎ‬
‫ﺗﺰﻭﻳﺪﻩ ﺑﺎﻟﻄﺎﻗﺔ ﻣﻦ ﻣﺼﺪﺭ ﻛﻬﺮﺑﻲ‬ ‫ﺧﻔﺾ ﺷﻮﺷﺮﺓ ﻟﺘﺸﻐﻴﻞ ﻋﺪﺩ 42‬ ‫‪ A‬ﻣﻦ ﺍﻷﺳﻔﻞ ﺇﻟﻰ ﺃﻋﻠﻰ ﺍﻟﺴﻮﻳﺘﺶ (‬ ‫ﻳﺘﻢ ﺗﻮﺻﻴﻞ ﺍﻟﺴﻮﻳﺘﺶ ﺍﻟﻤﺘﻌﺪﺩ ‪SMS‬‬
‫ﻣﺴﺘﻘﻞ ﺑﻞ ﻋﻦ ﻃﺮﻳﻖ ﺃﺟﻬﺰﺓ ﺍﻟﺮﻳﺴﻴﻔﺮ‬ ‫ﺭﻳﺴﻴﻔﺮ ( .‬ ‫‪ 9989 U‬ﺑﻌﺪﺩ 2 ﻭﺣﺪﺓ ﺧﻔﺾ‬
‫ﺍﻟﻤﻮﺻﻠﺔ ﺑﻪ ﻭ ﻓﻰ ﺍﻷﻭﻝ ﺷﻌﺮﻧﺎ ﺑﻌﺪﻡ‬ ‫ﺷﻮﺷﺮﺓ ﺭﺑﺎﻋﻴﺔ ﺍﻟﻤﺨﺎﺭﺝ ﻭ ﺗﻮﺯﻉ‬
‫ﺍﻻﺭﺗﻴﺎﺡ ﻟﺬﻟﻚ ﻭ ﻟﻜﻦ ﺑﻌﺪ ﻗﻴﺎﺱ ﻫﺬﺍ‬ ‫ﺇﻥ ﻓﻘﺪﺍﻥ ﺍﻹﺷﺎﺭﺓ ﺑﻴﻦ ) ﻭﺣﺪﺓ‬ ‫ﺍﻹﺷﺎ ﺭﺍﺕ ﺇﻟﻲ ﻋﺪﺩ 8 ﺃﺟﻬﺰﺓ ﺭﻳﺴﻴﻔﺮ‬
‫ﺍﻟﻨﻈﺎﻡ ﺍﺗﻀﺢ ﺍﻧﻪ ﻳﺴﺘﻬﻠﻚ 672 ‪mA‬‬ ‫ﺧﻔﺾ ﺍﻟﺸﻮﺷﺮﺓ ﻭ ﺟﻬﺎﺯ ﺍﻟﺮﻳﺴﻴﻔﺮ (‬ ‫ﻭ ﻋﻨﺪ ﺗﻮﺻﻴﻞ ﻭﺣﺪﺍﺕ ﺍﻣﺘﺪﺍﺩ ﺇﺿﺎﻓﻴﺔ‬
‫ﻣﻦ ﻭﺣﺪﺓ ﺧﻔﺾ ﺍﻟﺸﻮﺷﺮﺓ ﺍﻟﺮﺑﺎﻋﻴﺔ ﻭ‬ ‫ﺗﻢ ﺗﺤﺪﻳﺪﻩ 3...1+ ‪ dB‬ﻭ ﻓﻰ ﺃﺛﻨﺎء‬ ‫ﻟﻠﺴﻮﻳﺘﺶ ﻳﻤﻜﻨﻚ ﺯﻳﺎﺩﺓ ﻋﺪﺩ ﺍﻟﻤﺨﺎﺭﺝ‬
‫ﻗﺪ ﺷﻌﺮﻧﺎ ﺑﺎﻻﺭﺗﻴﺎﺡ ﺣﻴﺚ ﺍﻧﻪ ﻋﻤﻠﻴﺎ‬ ‫ﺍﻻﺧﺘﺒﺎﺭ ﺣﺼﻠﻨﺎ ﻋﻠﻰ ﻧﺘﺎﺋﺞ ﺍﻛﺜﺮ‬ ‫ﺇﻟﻰ 61 ﻭ 42 ﻣﺨﺮﺝ ﺑﺤﻴﺚ ﺗﻀﻤﻦ‬
‫ﻓﺎﻥ ﻛﻞ ﺟﻬﺎﺯ ﺭﻳﺴﻴﻔﺮ ﻗﺎﺩﺭ ﻋﻠﻰ‬ ‫ﺇﻳﺠﺎﺑﻴﺔ ﻛﻤﺎ ﺗﺮﻯ ﻓﻰ ﺍﻟﺮﺳﻢ ﻓﺎﻥ ﻣﻘﺪﺍﺭ‬ ‫ﺍﻟﺸﺮﻛﺔ ﺍﻟﻤﻨﺘﺠﺔ ﺗﺸﻐﻴﻞ ﺣﺘﻰ ﻋﺪﺩ 42‬
‫ﺍﻹﻣﺪﺍﺩ ﺑﻬﺬﻩ ﺍﻟﻄﺎﻗﺔ ﺍﻟﻼﺯﻣﺔ .‬ ‫ﺍﻟﻔﻘﺪﺍﻥ ﻛﺎﻥ ﻓﻰ ﻣﻌﻈﻢ ﺍﻟﺤﺎﻻﺕ ﻓﻰ‬ ‫ﺭﻳﺴﻴﻔﺮ ﺑﻄﺮﻳﻘﺔ ﻣﻨﻔﺼﻠﺔ .‬
‫ﻟﻀﺒﻂ ﻣﺴﺘﻮﻯ ﺍﻹﺷﺎﺭﺓ ﻣﻦ ﺧﻼﻝ‬
‫ﺍﻟﻤﻀﻌﻒ ﻳﻤﻜﻦ ﻭﺿﻌﻪ ﻓﻰ ﻣﺪﺧﻞ ﻭﺣﺪﺓ ﺧﻔﺾ‬
‫ﺍﻟﺸﻮﺷﺮﺓ ) ﺃﻋﻠﻰ ﺍﻟﺼﻮﺭﺓ ( ﻭ ﻣﻀﻌﻒ ﻣﺨﺮﺝ ﺍﻹﺷﺎﺭﺓ ﻣﺪﻣﺞ ﻟﻜﻞ‬
‫ﻣﺨﺮﺝ ﺭﻳﺴﻴﻔﺮ ﻭ ﻻ ﺗﻮﺟﺪ ﺣﺎﺟﺔ ﻟﻤﺼﺪﺭ ﻃﺎﻗﺔ ﺧﺎﺭﺟﻲ‬
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