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<blockquote data-quote="Adam792" data-source="post: 1127888" data-attributes="member: 330868">For the FM ones, yes they will have equipment that clears the sound as the audio has to then be modulated to an analogue FM signal.For the 30°W ones this will be DVB-IP equipment - for the Spanish and Portuguese radio stations (SER, LOS40, Rádio Comercial, Vodafone FM, etc.), the satellite transponder is being used like a private internet connection. A satellite router will be used, exactly like for people who use internet via satellite services. The audio signals for the radio stations are then available via Ethernet from the satellite router at the studios/transmitters via their respective multicast IP addresses.For DAB feeds, as the signal is digital, the data is “pre-assembled” in the transport format used for DAB multiplexes (ETI) before being carried over satellite. The DAB transmitter equipment accepts the pre-assembled data in this format and modulates it, only the end user’s radio has to decode the data after it’s been transmitted and received over Band III!For example, in Linux you can use the Dablin_gtk software to play DAB multiplexes you receive terrestrially if you have a DAB tuner, as well as via satellite, because the final content of the signal is the same format (ETI).</blockquote>

[QUOTE="Adam792, post: 1127888, member: 330868"] For the FM ones, yes they will have equipment that clears the sound as the audio has to then be modulated to an analogue FM signal. For the 30°W ones this will be DVB-IP equipment - for the Spanish and Portuguese radio stations (SER, LOS40, Rádio Comercial, Vodafone FM, etc.), the satellite transponder is being used like a private internet connection. A satellite router will be used, exactly like for people who use internet via satellite services. The audio signals for the radio stations are then available via Ethernet from the satellite router at the studios/transmitters via their respective multicast IP addresses. For DAB feeds, as the signal is digital, the data is “pre-assembled” in the transport format used for DAB multiplexes (ETI) before being carried over satellite. The DAB transmitter equipment accepts the pre-assembled data in this format and modulates it, only the end user’s radio has to decode the data after it’s been transmitted and received over Band III! For example, in Linux you can use the Dablin_gtk software to play DAB multiplexes you receive terrestrially if you have a DAB tuner, as well as via satellite, because the final content of the signal is the same format (ETI). [/QUOTE]

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