New: Specification of DVB-S, DVB-S2 and DVB-T
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08-01-2015, 01:55 PM
Post: #1
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Specification of DVB-S, DVB-S2 and DVB-T
DVB-S (Digital Video Broadcasting — Satellite):
DVB-S is basically SD (NOT HD). Technically DVB-S sends in MPEG2 compression algorithm. DVB-S is used in both multiple channel per carrier (MCPC) and Single channel per carrier (SCPC) modes for broadcast network feeds. Roll-off factor: α = 0.35 DVB-S2 (Digital Video Broadcasting – Satellite – Second Generation): DVB-S2 is basically SD and HD. DVB-S2 sends in MPEG4 witch is a better compression algorithm (MPEG4 doesn’t mean HD). DVB-S is used in both multiple channel per carrier (MCPC) and Single channel per carrier (SCPC) modes for broadcast network feeds. Modulation schemes up to 32APSK and QPSK. DVB-S2 performance gain over DVB-S is around 30% at the same satellite transponder bandwidth and emitted signal power. Roll-off factor: α = 0.20 and α = 0.25 DVB-T (Digital Video Broadcasting — Terrestrial): There are two choices for the number of carriers known as 2K-mode or 8K-mode. These are actually 1,705 or 6,817 carriers that are approximately 4 kHz or 1 kHz apart. DVB-T offers three different modulation schemes (QPSK, 16QAM, 64QAM). DVB-T’s main feature is that it uses COFDM (Coded Orthogonal Frequency Division Multiplexing) modulation. enjoy ........................... |
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The following 2 users Like biswanandan's post: SENTHIL KUMAR, SHFARUN |
08-01-2015, 02:06 PM
Post: #2
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RE: Specification of DVB-S, DVB-S2 and DVB-T
Great Information Dear biswanandan Bro.
+Reps add Please Upload Screenshots Here : http://www.sathunters.in I Do Not Answer Questions In PM! For All Questions There Is a Forum Where, To The Extent Possible, I Will Answer. |
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The following 1 user Likes SHFARUN's post: biswanandan |
08-01-2015, 03:34 PM
Post: #3
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RE: Specification of DVB-S, DVB-S2 and DVB-T
Very Good Information bro
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The following 1 user Likes Sajee's post: biswanandan |
08-01-2015, 04:28 PM
Post: #4
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RE: Specification of DVB-S, DVB-S2 and DVB-T
Gud information.
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The following 1 user Likes Sgokul gp's post: biswanandan |
03-12-2015, 11:16 PM
Post: #5
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RE: Specification of DVB-S, DVB-S2 and DVB-T
Very nice information
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