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[Gast]

Hoi,

 

Kan iemand me vertellen wat SCPC en MCPC-kanalen zijn ?

 

Nico <img src="/ubbthreads/images/icons/confused.gif" alt="" />

[Gast]

SORRY VOOR HET ENGELS !!!!!!!

 

Single Channel Per Carrier (SCPC)

 

SCPC is used for economical distribution of broadcast data, digital audio and video materials, as well as for full-duplex or two-way data, audio or video communications.

 

In an SCPC system, user data is transmitted to the satellite continuously on a single satellite carrier. The satellite signal is received at a single location, in the case of a point-to-point system, or at many locations in a broadcast application, providing hubless connectivity among multiple sites.

 

 

SCPC got its name from the older analog transmission technology, when a single satellite channel could carry only one data carrier. With today's digital technology, SCPC can actually operate in a MCPC (Multiple Channel Per Carrier) mode, with several data carrier multiplexed into a single digital aggregate. For example, two earth stations transmitting 64 kbps carriers to each other can actually provide several compressed digital telephone circuits as well as full-time low speed data circuits if proper voice/data multiplexing equipment is added to each basic system.

 

 

 

[Gerdy]

Om het wat eenvoudig te houden:

 

SCPC: transponder met één enkele zender

(wordt meestal toegepast voor niet-omroep doeleinden zoals feeds)

 

MCPC: transponder met méérdere zenders waarbij het onderscheid onderling gebeurd via de pid's

(wordt over het algemeen toegepast voor particuliere ontvangst bestemde programma's = commerciële zenders)

 

 

[Gerdy]

Nico,

 

Véél antwoorden op vragen kun je ook hier vinden!