EAS for the UK?

JV

James Vertigan Founding member 9 June 2007 9:02pm

Janner south west posted:

And if there were a NBC Attack on the UK, with No EAS, what would happen?

You mean we're all going to be hit by flying multi-coloured peacocks?

NG

noggin Founding member 10 June 2007 11:02pm

Steve in Pudsey posted:

noggin posted:

And also note that it is 14:9 pillarboxed as a result. (The network feed into regional vision mixers is always from the 4:3 analogue network - whether the region is analogue or digital - because the analogue network is "earlier")

When is that likely to be re-engineered?

Analogue still arrives in the regions before digital (because of MPEG encode/decode latency in the digital network) so analogue has to be the master.

Suspect it will remain as is until analogue switch off, when it will cease to be an issue.

However I believe the next re-engineering may be to remove any requirement for opt-out facilities in any region - with a move to the ITV model instead - where the BBC regional studios feed their studio output to a centralised presentation centre who drop them in and out of circuit and feed the transmitters/uplinks directly. The regions then no longer need a feed of network, and any overlaid captions would need to be made at the presentation centre, not the regional centre.

SP

Steve in Pudsey 11 June 2007 7:53am

noggin posted:

Analogue still arrives in the regions before digital (because of MPEG encode/decode latency in the digital network) so analogue has to be the master.

Do the analogue and digital networks ever carry different material these days (Wales excepted)? I wonder whether deriving analogue from digital would make things tidier, and save the cost of running two seperate distributions? Although as you say when DSO happens this will cease to be an issue so it's possibly not worth the effort.

noggin posted:

However I believe the next re-engineering may be to remove any requirement for opt-out facilities in any region - with a move to the ITV model instead - where the BBC regional studios feed their studio output to a centralised presentation centre who drop them in and out of circuit and feed the transmitters/uplinks directly. The regions then no longer need a feed of network, and any overlaid captions would need to be made at the presentation centre, not the regional centre.

I guess this could work with the opt switch still in the region, much like Elstree used to remotely operate a switch at TC? Might also mean that one of the barriers to BBC2 opts was removed.

(June 2007)