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On Thu, 2007-04-19 at 12:42 +0100, stinga wrote: > It sat terms I don't think you have a 'digital' signal, the data is > digital over an analogue signal (maybe sort of??) > Isn't this the same as ADSL? > My phone line is not digital. > If you're interested: digital satellite and adsl are both digital and don't travel over analogue signals. If you have adsl then your phone line IS digital, well some of it. The adsl part is transmitted digitally and the voice part is analogue. The two parts are separated into different frequency bands, which is why you have to use a filter on you phone line if you have adsl as it makes sure that these two bands are separated so that your phone doesn't interfere with the adsl. I can pretty much guarantee that your voice call gets digitalised if you're speaking to someone that isn't connected to the same exchange as yourself. ADSL and digital satellite, like most modern digital communication technologies are physically very similar in that they use QAM, quadrature amplitude modulation as a carrier. -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html