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    (2012-05-03 15:53:31, Hit : 7984, Vote : 523)
Subject  
   µ¿°æ128.2µµ õ¸®¾È À§¼º (COMS 1) Ka-band ¼ö½Å ½ÇÇè
µ¿°æ128.2µµ õ¸®¾È À§¼º (COMS 1) Ka-band ¼ö½Å ½ÇÇè (ÀÛ¼ºÁß)

2011/12/27 07:30

 

(1) ±â»ó/ÇØ¾ç À§¼º õ¸®¾È (COMS 1)

 

     µ¿°æ 128.2µµ À§Ä¡ÇÑ Ãµ¸®¾ÈÀ§¼º(COMS 1)Àº ´Ù±â´É Á¤ÁöÀ§¼ºÀ¸·Î Åë½Å, ÇØ¾ç ¹×

     ±â»ó°üÃø¿ë À§¼ºÀÔ´Ï´Ù.  

 

     ¶ÇÇÑ Ka-bandÀÇ À§¼ºTV ½ÃÇè¹æ¼ÛÀ» ÀϺΠ½ÃÇàÇϰí ÀÖ½À´Ï´Ù(KBS).

     ÇöÀç À§¼ºTV¿ëÀ¸·Î »ç¿ëµÇ°í ÀÖ´Â C-band ¹× Ku-band¿Í ´Þ¸® Ka-band¿¡¼­ ÇÏ´Â

     ÀÌ ½ÃÇè¹æ¼ÛÀ» ¸ð´ÏÅÍÇØ º¸µµ·Ï ÇϰڽÀ´Ï´Ù.

 

     ¿ì¼±  SATBEAMS »çÀÌÆ®¿¡ ³ª¿ÍÀִ õ¸®¾ÈÀ§¼º °ü·Ã ÀÚ·áÀÔ´Ï´Ù.

 

     Satellite Name: COMS 1 (Chollian)
     Status: active
     Position: 128¡Æ E (128.2¡Æ E)
     Norad: 36744
     Cospar number: 2010-032A
     Operator: Korea Aerospace Research Institute (KARI)
     Launch date: 26-Jun-2010
     Launch site: Guiana Space Center
     Launch vehicle: Ariane 5 ECA
     Launch mass (kg): 2460
     Dry mass (kg): 
     Manufacturer: EADS Astrium
     Model (bus): Eurostar-3000
     Orbit: GEO
     Expected lifetime: 7 years Call sign: 
     Beacon(s): 
     Details:
     Korean multi-function geostationary satellite COMS (Communication, Ocean and

     Meteorological Satellite). S/L-band transponder, Ka-band transponders
     Beams:

     Charts:

 

   Âü°íÀÚ·á : Ãµ¸®¾È À§¼º½Ã½ºÅÛ

 

(2) Daum "À§¼º¹æ¼ÛÄ«Æä"¿¡ "¿À¸®Áö³¯ °õÅÊÀÌ" ´Ô²²¼­ ¿Ã·ÁÁֽŠõ¸®¾È À§¼ºÀÇ Á֯ļöÁ¤º¸ÀÔ´Ï´Ù.

     (11.12.08. 16:22)


----- ÀÎ¿ë ½ÃÀÛ ----------------------------------------------------------------------------

 

¾È³çÇϽʴϱî? ±Ã±ÝÇϽŠ»çÇ×Àº Ka-Band Lo :18.85GHz


DVB-S2 20098 V 27000 KBS HD ½ÃÇè¹æ¼Û(º¸ÅëÀº Áö»óÆÄ)
DVB-S2 20141 V 27000 SBS HD Áö»óÆÄ
DVB-S2 20141 V 27000 MBC HD Áö»óÆÄ
DVB-S2 20141 V 27000 KBS-2 HD Áö»óÆÄ

ÀÌ»ó 4°³Ã¤³ÎÀÌ OpenµÇ¾î ÀÖ±¸¿ä LNB´Â ÇöÀç·Î´Â DRO LNB°¡ ¾ø¾î¼­ PLL LNB¸¦ »ç¿ëÇϰí ÀÖ½À´Ï´Ù.   °¡°ÝÀÌ 50¸¸¿ø ÀÌ»óÇÕ´Ï´Ù ¾ÈÅ׳ª´Â 55Cm Offset ANT¸¦ »ç¿ë ½ÃÇèÇϰí ÀÖÀ¸³ª 75 Á¤µµ¸é ¾ÈÁ¤ÀûÀÔ´Ï´Ù.

 

----- Àο렳¡ ------------------------------------------------------------------------------

 

(3) Ka-band ¼ö½Å¿ë LNB

     À§¼ºTV ¼ö½Å¿ë LNB (Low Noise Block Down Converter)´Â À§¼º¿¡¼­ ¼ÛÃâµÇ´Â ÀüÆÄ¸¦ ¼ö½ÅÇÏ¿©

     À§¼º¼ö½Å±â (set-top box)¿¡¼­ ¼ö½Å°¡´ÉÇÑ Á֯ļö (950~2150Mhz)·Î ³·Ãß°í ÀúÀâÀ½ ÁõÆø±â¸¦

     »ç¿ëÇØ ½ÅÈ£¸¦ ÁõÆøÇÏ´Â ÀåÄ¡ÀÔ´Ï´Ù.

 

     À§¼ºÀüÆÄÀÇ Á֯ļö¸¦ ³·Ãß±â À§Çؼ­, LNB ³»ºÎ¿¡ ±¹ºÎ¹ßÁø±â (Local Oscillator)¸¦ »ç¿ëÇØ ÀÏÁ¤

     Á֯ļö¸¦ ¸¸µé¾î ³»¾î À§¼º½ÅÈ£Á֯ļö¿Í È¥ÇÕÇÏ¿© ±× Â÷À̸¸Å­ ³·ÀºÁ֯ļö·Î º¯È¯ÇÏ°Ô µË´Ï´Ù.

     (ÀÌ·¯ÇÑ ¹æ½ÄÀ» ½´ÆÛÇìÅ׷δÙÀÎ Á֯ļö º¯È¯ ¹æ½ÄÀ̶ó°í ÇÕ´Ï´Ù)

 

    ÀÌ LO(±¹ºÎ¹ßÁø±â)ÀÇ Á¾·ù¿¡ µû¶ó PLL ¹æ½Ä°ú DRO ¹æ½ÄÀ¸·Î ±¸ºÐÇÒ ¼ö ÀÖ½À´Ï´Ù.

 

     PLL LNB : PLLÀº Phase Locked Loop ÀÇ ¾àÀÚ·Î ½Åµ¥»çÀÌÀú µî°ú °°Àº °÷¿¡ ¸¹ÀÌ »ç¿ëµÇ´Â

                    ¹æ½ÄÀ¸·Î ¼öÁ¤¹ßÁøÀÚµîÀÇ ±âÁØ ¹ßÁø Á֯ļö¿Í VCO (Àü¾ÐÁ¦¾î ¹ßÁø±â) ÀÇ À§»óÂ÷À̸¦

                    °ËÃâÇØ À̰ÍÀ» º¸»óÇÏ´Â ¹æ½ÄÀ¸·Î Çǵå¹éÀ» ÇÏ¿© ¾ÈÁ¤ÀûÀÎ Á֯ļö¸¦ ¸¸µé¾î³»´Â

                    ¹æ½ÄÀÔ´Ï´Ù.   (³Ê¹« º¹ÀâÇϹǷΠÀÌ ÀÌ»óÀº Àü¹®ÀڷḦ ÂüÁ¶ÇϽñæ.... )

                    ÀÌ ¹æ½ÄÀº Á֯ļö ¾ÈÁ¤µµ°¡ ÁÁÀ¸¹Ç·Î °ªºñ½Ñ ÇÁ·Î¿ë LNB¿¡ »ç¿ëµÇ¸ç ¹«Ã´ °í°¡ÀÔ´Ï´Ù.

 

     DRO type LNB : DRO ´Â dielectric resonator oscillator (À¯Àüü °øÁø ¹ßÁø±â)ÀÇ ¾àÀÚÀÔ´Ï´Ù. 

                            ¸¶ÀÌÅ©·Î¿þÀÌºê ´ë¿ª¿¡¼­ÀÇ À¯Àüü °øÁø Çö»óÀ» ÀÌ¿ëÇÑ ¹ßÁø±â·Î PLL ¹æ½Ä

                            º¸´Ù´Â Àú°¡ÀÔ´Ï´Ù.   ¿©±â À§Å°¹é°ú ¼³¸íÀ» ÂüÁ¶Çϼ¼¿ä.

 

     ÀÎÅͳݿ¡¼­ °Ë»öÇØ º» Ka-band DRO type LNB ÀÔ´Ï´Ù.   ´ë·«ÀûÀÎ °¡°ÝÀº ¾à USD 250~300 Á¤µµ

     (¼Û·áÁ¦¿Ü) ÀÎ °Í °°½À´Ï´Ù.

       - orbital_research_net :

       - Fujitsu General

 

(2) Å×½ºÆ®¿ë Ka-band LNB 

 

¾ÆÁ÷ À§¼ºTV ¿ëÀ¸·Î ½ÃÀå¿¡ ³ª¿ÍÀÖ´Â Ka-band¿ë LNB´Â ¾ø´Â °Í °°½À´Ï´Ù.   ÇÁ·Î¿ëÀ¸·Î ³ª¿À´Â

PLL LNB´Â °¡°ÝÀÌ ³Ê¹« ºñ½Î¼­ Å×½ºÆ®¸ñÀûÀ¸·Î ±¸ÀÔÇÑ´Ù´Â °ÍÀº ¾öµÎ¸¦ ¸ø³»°Ú°í, DRO Typeµµ

°¡°ÝÀ» ¾Ë¾Æº¸´Ï ¸¸¸¸ÇÑ°Ô ¾Æ´Ï¾ú½À´Ï´Ù.

 

µû¶ó¼­, Ebay¿¡¼­ Áß°íǰÀ» ¹°»öÇÏ¿© Çϳª ³«ÂûÀ» ¹Þ¾Ò½À´Ï´Ù.

 

´ÙÀ½°ú °°Àº Á¦Ç°ÀÔ´Ï´Ù.

 

ÀÌ Á¦Ç°Àº ¹Ì±¹ÀÇ À§¼ºÀÎÅÍ³Ý ¾÷üÀÎ Hughesnet »çÀÇ HN-9000 ½Ã½ºÅÛ¿¡ »ç¿ëµÇ´Â ºÎǰÀÔ´Ï´Ù.

 

 

LNB (DRO Type) : ¿ÞÂÊ À­ºÎºÐ 19.7~20.2 GHz (Part No. # 1027441-0005)

ÇǵåÈ¥ : ¿À¸¥ÂÊ À­ºÎºÐ : Part No. # 1500658-0001

1W Ãâ·ÂÀÇ ¼Û½Å AMP (BUC) : ¾Æ·¡ ºÎºÐ (Part No. # 1037673-0001)

 

¿¬¸»¿¬½Ã°¡ ³¢¾î¼­ ¹è¼Û¿¡ ½Ã°£ÀÌ °É¸±°Í °°½À´Ï´Ù.   ±¸Á¤ÈÄ¿¡³ª Å×½ºÆ® °¡´ÉÇϸ®¶ó ¿¹»óµË´Ï´Ù.

Å×½ºÆ® ÈÄ °á°ú¸¦ ¿Ã¸®°Ú½À´Ï´Ù.




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