Astra 2E at 28.2E: General Discussion Part 1

[solly]

This time the bbc didn't advise on a specific date for the switchover,differently from previous satellites.
Strange because these transfers usually require interruption of services for some time at night

the change signal at probleu tonight and tomorow night

 

[satesco]

16 APSK mode is on 12441 MHz.

 

[Pietclock]

The modulation FEC changes all the time - ACM mode.

 

[timo_w2s]

Easy to understand info on ACM here http://www.telesat.com/sites/default/files/telesat/files/ACM.pdf

 

[Huevos]

ACM only makes sense when there is feedback between the client and the host. If there isn't, the only thing that can be checked is uplink success through self monitoring. Adaption for downlink quality at the client location is impossible without feedback. And even if there were feedback from the client, in the case of DTH there are multiple clients (millions) so the signal would have to be adapted for the poorest performing client, which is why ACM doesn't make sense in the concept of DTH. In the case of DTH there is no feedback from the client, so all the provider can can do is operate a non-adaptive, good-enough policy (fixed modulation and correction), and if one of the clients goes offline due to downlink quality (rainfade for example) that's tough luck.

 

[Pietclock]

switching has begun.... 11.720H and 11.739V had breaks and RF level went down here. Probably on 2E Europe beam now.

 

[Pietclock]

11.758H just changed satellites...

 

[Pietclock]

and the next one..... 11.778V has a new home ....

 

[Pietclock]

11798H left Astra 2A ...

 

[Pietclock]

11.836H was switched..... they are obviously clearing good old 2A.

 

[Pietclock]

11856V handed over..

 

[Pietclock]

11.934V & 11.914H no longer on 2A...

 

[solly]

here no receiver signal yet

 

[Pietclock]

12.012V was just switched.....

so the news is, all the 2A transponders so far go to the 2E Europe beam. Not the spot beam.

 

[solly]

more two left from astra 2a
12460h and 12383h
no reception here yet

 

[AHMET_YILDIRIM]

almost all 2aHD tp s moved to 2E or 2F?
if they move to 2E same signal rate with 2F in Istanbul

This is perfect news for us.
almost 12db signal rate in Istanbul with 170 cm dish

 

[Hug]

11758 H tp 3, has that moved from 2A to 2E? Am i right in thinking thats itv2,3,4?

If so im picking that up

 

[Acuario]

Minor signal differences here but they could be down to atmospherics or measuring differences. Still waiting for 'the big one'

 

[AHMET_YILDIRIM]

As far as I realized below tp s move to 2F or 2E. I am not sure. the signal rate is the same with 2F. in Istanbul with 170 cm dish easy to get signal almost 12db all of them.

11720 H
11758 H
11836 H
11856 V
11914 H
12012 V
12382 H
12460 H

 

[timo_w2s]

Interesting that 2A was cleared first. End of an era for me, had Sky digital from the start. Now I need to decide if it's worth holding on for 2G in case they do use the Europe beam for some decent channels (not convinced they will), setup a Slingbox or just cancel and save £££... The latter is very tempting, but can I actually do it?!