Astra 1N tests - latest chat

[Llew]

what is a acm modulation then?? i assume qbox wont do it but i aint scanning just trying to use satfinder to confirma singal the agc is flicking which is usually what happens when it detects a signal but cant get a snr if therre nothing it sits at 56% consant no moving it happen with one of the other transponders when they whre litting up but not fully lit up

ACM - Adaptive Coding and Modulation. Used for data transmission, where the modulation and FEC rates are changed to suit the link conditions (noise, weather etc.) I think it's mostly used where the last link in the chain is terrestrial, where these conditions can have an adverse effect on the signal. There must of course be a return link to report any adversity, so the sender can change the FEC for maximum efficiency.

So trying to resolve an ACM channel with constantly changing modulation and FEC rates is impossible with non-ACM cards and STB's.

 

[solly]

please let me know 11185 V,sr.21666,3/5 if it use now dvbs normal or acm system ?

 

[radioagogo]

Hi Milestone 11, Must admit never heard of one of those but if it's intermittently picking up Ch 4 HD on a 1.35 metre dish it cant be that bad .2db noise figure sounds right but noise figures can be misleading, depends at what temperature it was measured. Would like to do a test when I feel better.

 

[Llew]

please let me know 11185 V,sr.21666,3/5 if it use now dvbs normal or acm system ?

Neither. Transmission ended.

 

[Huevos]

Neither. Transmission ended.

The carrier is still there, strong as it was last night.

 

[Ratchet]

I can't lock the 11185 V signal but can draw the constellation in Crazy Scan. I assume my device (TBS 5980) can't handle ACM.

 

[satesco]

I assume my device (TBS 5980) can't handle ACM.

Unfortunately this card does not know this demod

Transmission ended.

No,transponder is active:

 

[Shrubsole]

Meanwhile over on 11053 H (The ITV transponder) 20780 has now gone encrypted and 20711 is now back on air after disappearing for a few days.

 

[Llew]

Unfortunately this card does not know this demod



No,transponder is active:

Yes you're right. Scanned horizontal

 

[milestone 11]

Hi Milestone 11, Must admit never heard of one of those but if it's intermittently picking up Ch 4 HD on a 1.35 metre dish it cant be that bad .2db noise figure sounds right but noise figures can be misleading, depends at what temperature it was measured. Would like to do a test when I feel better.

No problem radioagogo, look forward to it.

 

[Analoguesat]

Ive moved most of the BBCi chat to a new thread - its well off topic for an Astra 1N discussion.

http://www.satellites.co.uk/forums/...support-forum/195691-bbci-streams-abroad.html

 

[Dan Dan]

sorry to ask - are the ITV channels on ASTRA 1N running with full channel names and in the clear...

 

[Analoguesat]

They are in the clear but are named in the 20xxx series

 

[Shrubsole]

Apart from 20780 (The HDish) one which went encrypted at about 11am UK time (GMT) this morning.

 

[Frantic]

They are in the clear but are named in the 20xxx series

...will they stay in the clear?

 

[Analoguesat]

...will they stay in the clear?

We expect them to.

 

[welshman234]

ITV 2 3 and 4 HD versions are likely to stay encrypted on Sky for a while

 

[Analoguesat]

ITV 2 3 and 4 HD versions are likely to stay encrypted on Sky for a while

Realistically there is little chance of ITV 2 3 & 4 HD going clear anytime soon as they are nothing more than a revenue earning exercise for ITV.

 

[L0nk]

Which other channels are actually realistic to soon join Astra 1N. The Channel 5 tegions and extra channels will probably soon go clear, Channel 5 HD might be possible in middle 2012.. then we'll most likely see additional ITV1 regions for Freesat!

Are there other likely channels? What about the Channel 4 side channels in HD (E4, More4, Film4)? Any info on those?
And what other channels could you imagine to go FTA?

 

[Analoguesat]

Which other channels are actually realistic to soon join Astra 1N. The Channel 5 tegions and extra channels will probably soon go clear, Channel 5 HD might be possible in middle 2012.. then we'll most likely see additional ITV1 regions for Freesat!

Are there other likely channels? What about the Channel 4 side channels in HD (E4, More4, Film4)? Any info on those?
And what other channels could you imagine to go FTA?

Some of the C4 spinoffs are possible but there is no definite info on any of them. After that its just guesswork.

Pay channels on Sky are unlikely simply because they get a cut of the subscription money and would have to make that up in increased advertising - and thats not going to happen in the current economic climate.