hoi,
that's right
some more info from the relevant company statement
the FTA broadcast was an accident because we rebuilt our headend that day in Switzerland. In fact, many transmitters are only configured in the test setup.
That's because we originally wanted to do a mix of SD and HD. But the new MPEG4 AVC h264 encoders are now so good that there is almost no optical difference between MPEG-4 and HEVC in the lower bit rate range. That was also extremely surprising for us. Bit rate is not always bit rate, the mistake is very often made. It depends on the encoding quality / efficiency and the source signal. Unfortunately we very often have marginal sources, even what we get from MGRTL and P7S1 via glass is not the quality as on ASTRA19E, but as sources we have to take that we get.
We then tried out the planned SD transmitters as a test in 1280x720p50 at a low bit rate, and the picture is worlds better than SD with a similar bit rate. Interestingly, some channels that are actually in 1080i25 work at least exactly well at 720p50, we made parallel comparisons. With 1080i25 there are fields with 25 frames and with 720p50 there are 50 frames, which makes an extreme difference. That was the reason why the öffis made 720p50 and not 1080i25! And they were right. Only the advertising suggests to us that 1080 is more than 720 and must be better, but that one is 25 fields and the other 50 full images are omitted. Ok, we waste more power when we use the p50, because more computing power is required, but with a lower bit rate you get a passable picture, visually speaking. We will now turn this "test transmitter" into a dynamic stat. Pack Mux where the bit rate distribution mechanism takes place as required, this will bring even more quality. All in all, we organize the Mux very efficiently.
Much work will be done on this in the coming week.
The FEC will stay that way so that there are also bad weather reserves. If you change from 3/4 to 5/6, you need at least C / N of 9.35 dB, in bad weather you have to add 4-6dB, so in good weather the carrier has to come in with just under 15 dB C / N, you usually can't do that with a 90cm. 3/4 FEC has carrier lock at 7.9 dB C / N + 4-6 dB = in good weather 13 dB are feasible with 90cm.
We will switch to HEVC together with SRG, so it is agreed.
Our slogan is "One for all", you can also see all of the SRG channels via the Kabelio module! i.e. you no longer need the SRG card. Exactly for the reason what you say, most TV sets STB only have one CI slot! i.e. we are the first company that is allowed to use the SRG broadcast on the Hotbird in Simulcrypt! The Simulcrypt with our Panaccess will go live in October.
And that we use Viaccess is impossible. With Viaccess it takes a few weeks and the cards run in Oscam / Controlword sharing. Our system is CSA3, cardless and the so-called advanced security SoCs. Viaccess has a different strategy than Panaccess. Viaccess always wants to sell new smart cards, so leaks are always helpful, then sell something new and better. Panaccess says safe is safe.