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Technicals then and now... (September 2018)

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CI
cityprod
davidhorman posted:
kernow posted:

They probably don't want anything to harm Channel's advertising revenues


Quite likely. There's no 111 ITV HD on Freesat if you put in a Jersey postcode (I think it's just London for everyone, isn't it?) and of course no "Click OK to watch in HD" banner.


Nope, Freesat 111 should now be regional for everyone. I get WestCountry West on Freesat 111.
NG
noggin Founding member
Steve in Pudsey posted:
Yes, my suggestion was that the HD mux *only* might be generated locally using satback, given the BBC's history of not using the fibre to feed the analogue channels using it back in the day, implying it might be cost prohibitive.

The other muxes are CI specific so would be handled in a more conventional way.


Yes - though BBC One and BBC Two analogue were distributed at 140Mbs each over fibre - so 280Mbs of capacity would have been needed to feed them both.

In comparison less than a quarter of that, less than 70Mbs, would carry both PSB1 (all BBC SD services) and PSB3 (the main HD services) - and fibre costs have dropped significantly in the last 30 years.
NG
noggin Founding member
Markymark posted:
Steve in Pudsey posted:
Yes, my suggestion was that the HD mux *only* might be generated locally using satback, given the BBC's history of not using the fibre to feed the analogue channels using it back in the day, implying it might be cost prohibitive.

The other muxes are CI specific so would be handled in a more conventional way.


I'll seek clarification from someone that will definitely know chapter and verse, but I'm sure there are gigs and gigs and gigs of fibre bandwidth to and from the CIs now (think of all the banks there !)


Yes - and to think the original DSat opt-chain for BBC One Channel Islands used bonded ADSL over multiple phone lines to get 8Mbs from Jersey to Plymouth... (Presumably still carried over fibre - but the cheapest route to do so?)
MA
Markymark
noggin posted:
Markymark posted:
Steve in Pudsey posted:
Yes, my suggestion was that the HD mux *only* might be generated locally using satback, given the BBC's history of not using the fibre to feed the analogue channels using it back in the day, implying it might be cost prohibitive.

The other muxes are CI specific so would be handled in a more conventional way.


I'll seek clarification from someone that will definitely know chapter and verse, but I'm sure there are gigs and gigs and gigs of fibre bandwidth to and from the CIs now (think of all the banks there !)


Yes - and to think the original DSat opt-chain for BBC One Channel Islands used bonded ADSL over multiple phone lines to get 8Mbs from Jersey to Plymouth... (Presumably still carried over fibre - but the cheapest route to do so?)


I did a speed test on my 4G phone recently, and got 96 Mb/s (just saying ! Not suggesting that's an option BTW !)
NG
noggin Founding member
Markymark posted:
noggin posted:
Markymark posted:

I'll seek clarification from someone that will definitely know chapter and verse, but I'm sure there are gigs and gigs and gigs of fibre bandwidth to and from the CIs now (think of all the banks there !)


Yes - and to think the original DSat opt-chain for BBC One Channel Islands used bonded ADSL over multiple phone lines to get 8Mbs from Jersey to Plymouth... (Presumably still carried over fibre - but the cheapest route to do so?)


I did a speed test on my 4G phone recently, and got 96 Mb/s (just saying ! Not suggesting that's an option BTW !)


If you stand near an InlinkUK advertising/phone 'thing' you can get 300Mbs via WiFi without breaking a sweat (each one has a Gigabit BT fibre connection)
MA
Markymark
noggin posted:

If you stand near an InlinkUK advertising/phone 'thing' you can get 300Mbs via WiFi without breaking a sweat (each one has a Gigabit BT fibre connection)


What a time to be alive !
elmarko, Richard and noggin gave kudos
MA
Markymark
noggin posted:
Steve in Pudsey posted:
Yes, my suggestion was that the HD mux *only* might be generated locally using satback, given the BBC's history of not using the fibre to feed the analogue channels using it back in the day, implying it might be cost prohibitive.

The other muxes are CI specific so would be handled in a more conventional way.


Yes - though BBC One and BBC Two analogue were distributed at 140Mbs each over fibre - so 280Mbs of capacity would have been needed to feed them both.

In comparison less than a quarter of that, less than 70Mbs, would carry both PSB1 (all BBC SD services) and PSB3 (the main HD services) - and fibre costs have dropped significantly in the last 30 years.


I have it from the horse's mouth, Fremont Point is fed by fibre for all three muxes, with the 27.5W D-Sat feed
for PSB 1 and 3 back up.

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