Talk:DVB-RCS

Comment

My apologies to the original author but I read this article and found the paragraphs I edited to be poorly put together and they seemed 'wrong'. I'm not qualified to make much in the way of amendments but I believe it is now less confusing and feels more 'grown up'. I did briefly research the MFTDMA reference and am taking it to be a modification of TDMA (there are a number of google-able references relating to satellite transmissions using this protocol). I also think that shedular was a mis-spelling... --Thickycat (talk) 15:04, 18 January 2009 (UTC)

Comment

There is a big mistake. DVB-RCS is not a digital broadcasting technology. It is a return link specification. There is no broadcasting involved in satellite user uplink. —Preceding unsigned comment added by SatcomMan (talk • contribs) 17:10, 31 March 2010 (UTC)

I read it again, and can't believe in my eyes. I am sorry but this article is rubbish, pure and simple; great argument for people who believe wikipedia is unreliable. I don't have enough time at the moment to correct it. DVB-RCS is a satellite return link specification, designed for geostationary satellites in Ku and Ka bands. The specification was developed by the DVB organisation, and endorsed by European Telecommunications Standards Institute (ETSI). SES Astra is a satellite operator that uses DVB-RCS among many others. There is no need of mentioning Astra, or any other commercial entity, specifically.

GMSK is not part of DVB-RCS specification. QPSK is. Indeed, a satcom terminal transmitting in GMSK is not DVB-RCS compliant.

DVB-RCS terminals are compliant with DVB-S and DVB-S2 signals on the forward link. Now, DVB-S and DVB-S2 are broadcasting specifications. DVB-RCS uses multi-frequency TDMA on the return link. Nothing fancy, apart from the name. MF-TDMA enables terminals with smaller antennas and lower transmission powers. The return link band is divided into smaller chunks and each chunk is allocated dynamically on a TDMA-basis. Dynamic allocation is based on CF-DAMA.

If you're a student like me, don't waste your time with this article. Just go to http://pda.etsi.org/pda/queryform.asp and download the specification. Also read the implementation guidelines. Specification doc no: EN 301 790 Implementation Guidelines doc no: TR 101 790 ......................................................

External links modified

Hello fellow Wikipedians,

I have just modified one external link on DVB-RCS. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

• Added archive https://web.archive.org/web/20101214075631/http://dvb.org/technology/dvbrcs/tm4164.DVB-RCS%20NG%20Call%20For%20Technologies.pdf to http://www.dvb.org/technology/dvbrcs/tm4164.DVB-RCS%20NG%20Call%20For%20Technologies.pdf

When you have finished reviewing my changes, please set the checked parameter below to true or failed to let others know (documentation at {{Sourcecheck}}).

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 18 January 2022).

• If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
• If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 21:46, 4 December 2016 (UTC)

External links modified

Hello fellow Wikipedians,

I have just modified 2 external links on DVB-RCS. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

• Added archive http://arquivo.pt/wayback/20160522190718/http://telecom.esa.int/telecom/www/object/index.cfm?fobjectid=27702 to http://telecom.esa.int/telecom/www/object/index.cfm?fobjectid=27702
• Added archive http://arquivo.pt/wayback/20160522190813/http://telecom.esa.int/telecom/media/document/ASN%20Mesh%20Presentation.pdf to http://telecom.esa.int/telecom/media/document/ASN%20Mesh%20Presentation.pdf

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 18 January 2022).

• If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
• If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 02:41, 3 September 2017 (UTC)