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 95   3   1
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Name  
    (2012-05-03 15:53:31, Hit : 8456, Vote : 551)
Subject  
   128.2 õ (COMS 1) Ka-band
128.2 õ (COMS 1) Ka-band (ۼ)

2011/12/27 07:30

 

(1) /ؾ õ (COMS 1)

 

     128.2 ġ õ(COMS 1) ٱ , ؾ

     Դϴ.  

 

      Ka-band TV Ϻ ϰ ֽϴ(KBS).

     TV ǰ ִ C-band Ku-band ޸ Ka-band ϴ

     ϰڽϴ.

 

     켱  SATBEAMS Ʈ ִ õ ڷԴϴ.

 

     Satellite Name: COMS 1 (Chollian)
     Status: active
     Position: 128 E (128.2 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:

 

   ڷ : õ ý

 

(2) Daum "ī" " " Բ ÷ֽ õ ļԴϴ.

     (11.12.08. 16:22)


----- ο ----------------------------------------------------------------------------

 

ȳϽʴϱ? ñϽ Ka-Band Lo :18.85GHz


DVB-S2 20098 V 27000 KBS HD ( )
DVB-S2 20141 V 27000 SBS HD
DVB-S2 20141 V 27000 MBC HD
DVB-S2 20141 V 27000 KBS-2 HD

̻ 4ä OpenǾ ֱ LNB δ DRO LNB  PLL LNB ϰ ֽϴ.   50 ̻մϴ ׳ 55Cm Offset ANT ϰ 75 Դϴ.

 

----- ο  ------------------------------------------------------------------------------

 

(3) Ka-band ſ LNB

     TV ſ LNB (Low Noise Block Down Converter) Ǵ ĸ Ͽ

     ű (set-top box) Ű ļ (950~2150Mhz) ߰ ⸦

     ȣ ϴ ġԴϴ.

 

     ļ ߱ ؼ, LNB ο ι (Local Oscillator)

     ļ ȣļ ȥϿ ̸ŭ ļ ȯϰ ˴ϴ.

     (̷ ׷δ ļ ȯ ̶ մϴ)

 

    LO(ι) PLL İ DRO ֽϴ.

 

     PLL LNB : PLL Phase Locked Loop ڷ ŵ Ǵ

                    ڵ ļ VCO ( ) ̸

                    ̰ ϴ ǵ Ͽ ļ 

                    Դϴ.   (ʹ ϹǷ ̻ ڷḦ Ͻñ.... )

                    ļ Ƿ ο LNB Ǹ ô Դϴ.

 

     DRO type LNB : DRO dielectric resonator oscillator (ü ) Դϴ. 

                            ũο̺ 뿪 ü ̿ PLL

                            ٴ Դϴ.   Ű ϼ.

 

     ͳݿ ˻ Ka-band DRO type LNB Դϴ.   뷫 USD 250~300

     (۷) ϴ.

       - orbital_research_net :

       - Fujitsu General

 

(2) ׽Ʈ Ka-band LNB 

 

TV 忡 ִ Ka-band LNB ϴ.   ο

PLL LNB ʹ μ ׽Ʈ Ѵٴ θ ڰ, DRO Type

˾ƺ Ѱ ƴϾϴ.

 

, Ebay ߰ǰ Ͽ ϳ ޾ҽϴ.

 

ǰԴϴ.

 

ǰ ̱ ͳ ü Hughesnet HN-9000 ýۿ Ǵ ǰԴϴ.

 

 

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

ǵȥ : κ : Part No. # 1500658-0001

1W ۽ AMP (BUC) : Ʒ κ (Part No. # 1037673-0001)

 

ð  ۿ ð ɸ ϴ.   Ŀ ׽Ʈ ϸ ˴ϴ.

׽Ʈ øڽϴ.




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