Alain Vaslet wrote: > Klaus Schmidinger schrieb: > >>>> Since around the beginning of this year the ZDF broadcasts with >>>> a much higher bandwidth than before. That's why recording and watching >>>> channels on that transponder is a problem on a single card system. >>> >>> Arrrrgh! It's a higher bit (data) rate but _not_ bandwidth! >> >> But doesn't that ultimately result in a higher bandwidth >> of that particular broadcast? > > ??? NO! The reason why ZDF is broadcasting at a higher bit rate is that > Eurosport and Euronews went off their transponder (to KDG transponder on > 23,5?). Bandwidth is a measure of frequency range, measured in hertz. > This range has _not_ changed which would be rather difficult because > frequencies on satellites are pretty fix. Also modulation, FEC and > symbol rate have not been changed. > > Alain I was not referring to the bandwidth of the entire transponder. I'm pretty sure that hasn't changed. I was referring to the individual signal of the ZDF channel, with VPID: 110 APID: 120=deu,121=2ch DPID: 125=dd Apparently they are broadcasting that channel using a bigger chunk of the total transponder capacity, which means a higher data rate, ok, but ultimately results in a sharper image with more details and better audio (why else would they do it?). And a sharper image means that the video signal has a higher bandwidth, doesn't it? Klaus
