BBC Power Fiasco
Colin
BBC News 24 has merged with BBC World (with the latters branding taking
priority), and as of 9pm the presentation has been moved across town to the
Westminster studio which is obviously the backup location.
Gavin Esler has been carted over there. First thing he said was that they
were broadcasting from Westminster due to power problems in and around TVC.
They seem to be broadcasting a 14:9 zoomed version of a 4:3 picture - I
believe the Westminster studio is not WS equipped.
Looks like the failure of the generator has caused some sort of damage that
has stopped the studios getting back into service.
The mains has been back on in the area since about 7.20pm so if there wasn't
any damage they would have been back on at TVC by now.
********
Just caught the BBC's first report about the event. As suspected elsewhere
in this group the emergency generator burst into flames (hence the fire
brigade). Hugh Edwards says that they were aware that the generator was
having problems earlier in the 6 o'clock news, but it was still a shock when
the power gave up with a big bang and he was thrown into pitch darkness!
Greg Dyke is NOT happy! An investigation has been launched into why all the
networks were permitted to be affected like this. Network Radio is STILL
out.
It has to be said that the power arrangements have been found seriously
lacking in a most spectacular way. Will a guillotene be set up in the TVC
car park at dawn tomorrow I wonder?
At least they kept the footy on the air - good effort!
D. Mac
>
> At least they kept the footy on the air - good effort!
>
I should think so - they spent an absolute fortune in contingency measures
to make sure this didn't happen over the millennium!!!!
But like you say... I'd imagine heads will roll... the news shouldn't have
gone off
All the best laid plans and all that..........................
aa
Colin <an...@NOSPAMblueskies.demon.co.uk> wrote in message
news:961533076.12391.1...@news.demon.co.uk...
Anyone spot that the BBC1 News simulcast on News 24 currently is slightly
ahead on the latter?
aa
David Giles
hence the strange and unannounced cuts to and from Dad's Army (BBC1) and
Michael Palin in Ireland (BBC2). The fact that BBC2 was showing pre-recorded
stuff anyway and *still* flicked to another programme suggests that even the
network control area lost power and had to switch to Birmingham (which takes
over the network in crises such as this).
BBC1 South managed to avoid showing Dad's Army by playing out a barrage of
local radio promos after South Today, but BBC1 East seemed completely
unprepared and just opted back to the network at the end of the regional
news, which then cut from the Dad's Army filler to Euro 2000.
News 24 seems to have been the worst-affected, and is even now simulcasting
with BBC World from the Westminster studios.
Ted Richardson
>
> Even critically undefended places like
> hospitals, the Palace of Westminster and defence sites don't act in
> this way.
Sorry, sorry...
Spell check error here. I meant UNFUNDED not undefended. Apologies.
Ted Richardson
> I should think so - they spent an absolute fortune in contingency > measures to make sure this didn't happen over the millennium!!!!
>
> All the best laid plans and all that..........................
>
They didn't do that bad. The continuity suites stayed on air, didn't
they?
It was always said that if TC/BH went down, Pebble Mill would take
over. Presumably in the lean fit BBC this is not the now the case.
Honestly though, mains power is so reliable now that not many places
have more than UPS batteries and one line of generator back-up for even
the most critical of applications. This is true of defence and critical
IT applications, and certainly true of hospitals where only the op
theatres stay on for hours off batteries.
Presumably what happens at the BBC is that
presentation/transmittion/core telecoms floats across good old BT style
48v accumulators.
The BBC's major problem seems to be not power reliability but management
panic. As soon as a minor fire occurs on the site they evacuate the
lot! Has happened before. Even critically undefended places like
Richard Lamont
"Colin" <an...@NOSPAMblueskies.demon.co.uk> writes:
> It has to be said that the power arrangements have been found seriously
> lacking in a most spectacular way.
How standards have slipped. In my day on BBC transmitters we did a
diesel test run once a week on full load for several hours. Every
engineer and TA on the station was capable of running up engines,
synchronising them and doing the necessary switching.
What, if anything, was the test schedule for the generator at White
City?
--
Richard Lamont
ric...@stonix.demon.co.uk
http://www.stonix.demon.co.uk/
Stephen Neal
David Giles wrote in message <8iovn1$19b$1...@gxsn.com>...
>I suspect the emergency backup from Birmingham was invoked on BBC1 and
BBC2,
>hence the strange and unannounced cuts to and from Dad's Army (BBC1) and
>Michael Palin in Ireland (BBC2). The fact that BBC2 was showing
pre-recorded
>stuff anyway and *still* flicked to another programme suggests that even
the
>network control area lost power and had to switch to Birmingham (which
takes
>over the network in crises such as this).
Interestingly only BBC One and Two analogue switched to different programmes
(I'm guessing Pebble Mill was switched in circuit in case the analogue pres
areas went down) , BBC One and Two on DSat stayed with UK Direct and
Battlestar Galactica - so I guess they didn't switch to Pebble Mill (if this
is what analogue did). The two networks were completely out of sync at the
regional opt-back point - goodness only knows what the regions were seeing
on their sustaining feed to opt-back to. The Digital services were almost
entirely clean throughout after the Six fell off-air. The footy started
perfectly on DSat.
Did anyone see if the quarter past six coming up regional opt had a black
hole in it on South East Analogue - it did in SE Digital when the switch to
Elstree didn't happen. I guess their opt-out circuitry (the actual switch is
based at TVC I believe) failed - I think the UK Today coming up went out on
analogue.
>BBC1 South managed to avoid showing Dad's Army by playing out a barrage of
>local radio promos after South Today, but BBC1 East seemed completely
>unprepared and just opted back to the network at the end of the regional
>news, which then cut from the Dad's Army filler to Euro 2000.
Yep - I saw So'ton - very good effort on their behalf.
Roderick Stewart
> How standards have slipped. In my day on BBC transmitters we did a
> diesel test run once a week on full load for several hours. Every
> engineer and TA on the station was capable of running up engines,
> synchronising them and doing the necessary switching.
There used to be a spare presentation control room that only a few were
supposed to know about (but everybody did) at Lime Grove, which was
tested on a regular rota - every third Sunday I think, so each shift
got the job alternately. There was some emergency stuff at Wood Norton
too. As you say, these things used to be taken seriously, but nowadays
everything in the land seems to be run by management that don't know
anything about what they're managing, so perhaps it's not surprising.
Rod
Marcus Durham
<rj...@crosby.u-net.com> shared the following with us in
uk.tech.broadcast:
[snip]
>too. As you say, these things used to be taken seriously, but nowadays
>everything in the land seems to be run by management that don't know
>anything about what they're managing, so perhaps it's not surprising.
You'd wonder what the hell would happen in the event of a nuclear
attack!
--
Marcus Durham
The UMTSDW Homepage. News, Reviews, Features and Locations.
http://www.zenn.demon.co.uk/drwho/drwho.htm
Ian Jelf
<Mar...@zenn.demon.co.uk> writes
>In article <VA.0000174...@crosby.u-net.com> Roderick Stewart
><rj...@crosby.u-net.com> shared the following with us in
>uk.tech.broadcast:
>[snip]
>>too. As you say, these things used to be taken seriously, but nowadays
>>everything in the land seems to be run by management that don't know
>>anything about what they're managing, so perhaps it's not surprising.
>[snip]
>
>You'd wonder what the hell would happen in the event of a nuclear
>attack!
theory.......
--
Ian Jelf http://www.bluebadge.demon.co.uk
Birmingham, UK
Registered "Blue Badge" Tourist Guide
for the Heart of England and London
Dave Liquorice
> I was in Winchester hospital at the time, having a minor procedure for
> a back problem. Always miss the fun me!
Hope you are recovering well.
> The decision to run trails was probably taken by Andy Stone
> [director]...he'd have been in his element, saving the day again <VBG>
Newcastle didn't deal with it very well at all. Finished early, well 1853ish
but maybe that was because of the footy. But no closeing sting and a mix
through to a mute news style "techinical fault" caption. This remained for
several minutes and single voice over from a local presenter saying that
there was a power failure and then a cut to Dads Army. I think the opt back
was when the footy started as there was the traditional glitch and jump a
moment or three after the titles appeared.
--
Cheers new...@nexus.demon.co.uk
Dave. Remove "spam" for valid email.
Dave Liquorice
>> What, if anything, was the test schedule for the generator at White
>> City?
>
> It worked for the millennium...next test due sometime December 2999?
If they have any sense it will be August 2035 (ish). Unix date counter
rollover time.
D. Mac
seeing
> >on their sustaining feed to opt-back to.
Rather appropriately it was Dads army...."don't panic Mr Mainwaring!!!"
"and you silly boy Pike" quite appropriate under the circumstances. I felt
sorry for the poor old guy in NC1 that was rabbiting away blissfully unaware
that he had been relieved of his (analogue) output.
We had a call from a viewer who was rather ****ed off that they couldn't see
the rest of the programme when it got chopped!!!
> In Southampton, there is no way to monitor the DTT sustaining feed in
> the gallery...I was told it would be confusing for me...condescending
> PMS bastards! Didn't have the budget/overlooked in the planning more
> like.
never a truer word spoken in jest
And yet another generator to add to the list of ones they blew up doing y2k
tests throughout the country!!
PS did *anyone" record the football!!!!!!!!
Paul Ratcliffe
wrote:
>The BBC's major problem seems to be not power reliability but management
>panic. As soon as a minor fire occurs on the site they evacuate the
>lot! Has happened before. Even critically undefended places like
>hospitals, the Palace of Westminster and defence sites don't act in
>this way.
Bloody premises management seem to think they are God these days. I guess
the same goes on at TVC as at our relatively small outpost of the
organisation....
Steve Roberts
I was in the voice studio at TVC recording a commentary for a
forthcoming DVD when the lights went out. We sat there in the dark
chatting with the artistes for about an hour before we decided to
abandon the booking. Wasn't until we got outside that we discovered
that the building had ben evacuated! Nobody had come to tell us, there
had been no alarms - there could have been a raging fire (actually I
believe there were at least two!) and we wouldn't have been any the
wiser.
I hope some heads will roll...
The biggest problem we've had is that when the power came back on,
everyone repowered the rooms and then it browned out, which is never a
good thing. That's what killed most of our gear...
Steve
The Doctor Who Restoration Team Website
http://www.restoration-team.co.uk
Richard Bell
> BBC1 South managed to avoid showing Dad's Army by playing out a barrage of
> local radio promos after South Today, but BBC1 East seemed completely
> unprepared and just opted back to the network at the end of the regional
> news, which then cut from the Dad's Army filler to Euro 2000.
>
I turned on BBC ONE Northern Ireland at 6.56 and Dad's Army was on.
Puzzled, I checked p606 of Ceefax which was no help, although i did
notice that it was showing Now/next for about half n hour previous.
BBC NI never opts back in to Huw Edwards before seven, which makes me
wonder why they didn't go up to 7pm anyway. Maybe they started early
after the News at 6 went off-air, and didn't have enough material.
Linekar started before seven anyway.
Richard
Robert Williams
news:nyyfbegfarkhfqrzbap...@snail.howhill.network...
The opt back must have been when they cut to Dad's Army, because in the
South East we had (almost) the whole episode in place of Newsroom South
East.
On BBC ONE digital the whole thing was a lot less messy. UK Direct replaced
the regional news, which was followed by the weather read by the continuity
announcer, then a couple of trailers, then the announcer apologising for the
situation and informing us we would be going over to the football a few
minutes early. It took about twenty seconds for the analogue feed to switch
to this.
Robert Williams
http://www.users.nascr.net/~rgwill
Nigel Kendrick
NK
> The BBC's major problem seems to be not power reliability but management
> panic. As soon as a minor fire occurs on the site they evacuate the
> lot! Has happened before. Even critically undefended places like
> hospitals, the Palace of Westminster and defence sites don't act in
> this way.
--
Remove null. for valid e-mail address.
Dave Liquorice
> In the event of breakdown, there is little to use visually in a holding
> pattern, thus Southampton's rolling trail sequence...must have made MFA
> wake up...they're all on individual beta tapes, no doubt un-cued :-)
Well they would have had a bit of warning when the six fell off the air
about 20 mins in. You then have the entire programme to wonder what you are
going back to and how to fill the gap. Of course this does require at least
one person to be free enough to actually do anything about it.
> Still can't time an opt switch, eh? What is the world coming to?
I have yet to see a region that does seamless opts when watching at home.
Mat Overton
> <rj...@crosby.u-net.com> shared the following with us in
> uk.tech.broadcast:
> [snip]
> >too. As you say, these things used to be taken seriously, but nowadays
> >everything in the land seems to be run by management that don't know
> >anything about what they're managing, so perhaps it's not surprising.
> [snip]
>
> You'd wonder what the hell would happen in the event of a nuclear
> attack!
I was appalled by the events, although I missed the fun, after the program
on football hooligans, the BBC Balloon, trailers, and the following film
were shown on analogue in 14:9. Maybe that isn't so bad, but seen as the
film was shown in 4:3, and have a black border ALL THE WAY
AROUND............ it took them a good half hour or so to realise and put it
back to 4:3
Paul Martin
Dave Liquorice wrote:
>I have yet to see a region that does seamless opts when watching at home.
BBC NorthWest seem to be able to do seamless opt outs on Digital.
--
Paul Martin <p...@zetnet.net>
at home, swap dash to dot to email.
PeterW
Mar...@zenn.demon.co.uk (Marcus Durham) wrote in
<zo1IQMAj...@zenn.demon.co.uk>:
>In article <VA.0000174...@crosby.u-net.com> Roderick Stewart
><rj...@crosby.u-net.com> shared the following with us in
>uk.tech.broadcast:
>[snip]
>>too. As you say, these things used to be taken seriously, but nowadays
>>everything in the land seems to be run by management that don't know
>>anything about what they're managing, so perhaps it's not surprising.
>[snip]
>
>You'd wonder what the hell would happen in the event of a nuclear
>attack!
>
They'd show Dad's Army.
Peter
Dave
>
>At least they kept the footy on the air - good effort!
>
Not really sure how. I think both BBC Amsterdam (the route for the
footy) and the footy OB truck itself were both having power problems
last I heard at 17:30. Seriously.
D
Dave
>"D. Mac" wrote:
>
>> I should think so - they spent an absolute fortune in contingency > measures to make sure this didn't happen over the millennium!!!!
>>
>> All the best laid plans and all that..........................
>>
>
>They didn't do that bad. The continuity suites stayed on air, didn't
>they?
Analogue cons handed to the digital ones about 5:30.
I believe the main problem wasn't loss of power on the equipment, but
loss of air-con in the main equipment rooms, forcing them to be
manually switched off.
>It was always said that if TC/BH went down, Pebble Mill would take
>over. Presumably in the lean fit BBC this is not the now the case.
No, the Dad's Army that went out was from Pebble Mill.
D
Dave
>> >regional opt-back point - goodness only knows what the regions were
>seeing
>> >on their sustaining feed to opt-back to.
>
>Rather appropriately it was Dads army...."don't panic Mr Mainwaring!!!"
>"and you silly boy Pike" quite appropriate under the circumstances.
Not many people will have noticed, but the first problems were in
Newsround, were the studio lights failed, the kids studio also died,
but managed to start up intime to link out of newsround...although
they had to do it outside, because they too had no lights.
Then the first technical on-air glitch hit during a show called
"Against All Odds".
Yes.
Marcus Durham
shared the following with us in uk.tech.broadcast:
[snip]
>
>footy) and the footy OB truck itself were both having power problems
>last I heard at 17:30. Seriously.
They could have always re-broadcast Eurosport :-)
Dave Liquorice
>> I have yet to see a region that does seamless opts when watching at home.
>
> BBC NorthWest seem to be able to do seamless opt outs on Digital.
Don't have digital (yet...) Newcastles on pure analogue (no NICAM) are
pretty 'orrible. Double breaths and a dropout on audio twitch on picture.
Dave Liquorice
>>I have yet to see a region that does seamless opts when watching at home.
>
> For years, the delay to each side of the opt switch was considerably
> different in Bristol. Huge horizontal twitches on switching.
I haven't see a Bristol opt for over a year now. I've moved some what
further north.
Dave Liquorice
>> You'd wonder what the hell would happen in the event of a nuclear
>> attack!
>
> They'd show Dad's Army.
No worse than that "Protect and Survive" followed by "Words and Pictures".
Ted Richardson
No. The only people to shout to the populous are the BBC. If their
generators are up to it that is!
Mat Overton
has footage of the "events".....
Michael Sanders
somewhere, route it via BT to Birmingham (or at a pinch ITN, LNN,
Retuers or APTN if the shit really hit the fan) super a caption over
it and send it to CP and the energis lines! In cases like this us
techie broadcasting folk all tend to help each other out, so as long
as the bit of cable still works you've got a fighting chance!
When I started at LNN in '93 there was still a very old LWT links
truck parked behind the LWT tower. I was told it was always ready to
role as it could go to quite a few places to act as a repeater should
the lines fail. Then they got the satellites and other failsafes so
they bined it!
--
Michael Sanders
lighting cameraman
www.glowstars.demon.co.uk
Marcus Durham <Mar...@zenn.demon.co.uk> wrote in message
news:z6lWyPAq...@zenn.demon.co.uk...
Paul Martin
Michael Sanders wrote:
>it and send it to CP and the energis lines! In cases like this us
>techie broadcasting folk all tend to help each other out, so as long
>as the bit of cable still works you've got a fighting chance!
..and let the accountants fight it out later. :-)
Michael Sanders
Michael Sanders
lighting cameraman
www.glowstars.demon.co.uk
Paul Martin <p...@nowster-zetnet.co.uk> wrote in message
news:slrn8lbs...@manlap.zetnet.co.uk...
Paul Ratcliffe
>sequence...must have made MFA wake up...they're all on individual beta
>tapes, no doubt un-cued :-)
Tape. How quaint :-)
What are you using that Profile for?
Paul Ratcliffe
<new...@nexus.demon.co.uk> wrote:
>I have yet to see a region that does seamless opts when watching at home.
The last time I looked (and many before), I had great difficulty telling
where Leeds switched in and out of circuit.
pr...@cix.compulink.co.uk
the road on the South Bank as part of the works to construct the Museum of
the Moving Image. A mechanical digger pulled up and broke all the
BT circuits running from LWT to Tower and Tower to Crystal Palace. I
remember sitting in LWT Lines watching all the incoming circuits disappear
and all the Off airs go bang!!. A monumental feat of co-operation between
LWT, Thames, the Beeb, and BT had make-goods, courtesy of the LWT roof
etc. in place within two hours.
Paul
Paul Ratcliffe
>For years, the delay to each side of the opt switch was considerably
>different in Bristol. Huge horizontal twitches on switching.
Since this damned digital distribution system came in, the path lengths from
TVC-BS can change without warning. They generally don't but it has been known.
There is also a discrepancy between Net1 and Net2 arriving. This is not the
same discrepancy which is measured leaving TVC!
So all in all, the timing can be bloody anything. Even if you get your genlock
timing right on Net1, it can be a couple of microseconds out on Net2 and the
result is a nasty jump.
I have done battle many times trying to get to the bottom of this but always
seem to lose. Giving up is a much easier option :-) Nobody else seems to care,
so why the f* should I?
>The opt check on analogue in Southampton is to listen to the
>monitoring SiS decoder for the o/g line, and check for the temporary
>muting...it's an [almost] fail safe check!
Or use the off-air receiver feed...
Gareth Rowlands
ab...@orac.clara.co.uk (Paul Ratcliffe) wrote:
> Bloody premises management seem to think they are God these days. I guess
> the same goes on at TVC as at our relatively small outpost of the
> organisation....
To be fair to them, they had to evacuate as the fire alarm system and
the emergency lighting had failed - rumour has it that there was a
flashover in the battery room.
In my experience, they are a lot more sympathetic to the business of
making programmes at outposts than high-profile sites like TVC and BH,
but I nearly always refer to them by using their traditional nickname
('Bogs and Boilers') especially if the opportunity presents itself when
there are suits with clipboards around !
Cheers !
Gareth.
Richard Bell
> Don't have digital (yet...) Newcastles on pure analogue (no NICAM) are
> pretty 'orrible. Double breaths and a dropout on audio twitch on picture.
UTV still often has a twitch at 9.25. What about other ITV regions?
Richard
Rob Dickie
I was wondering, after following details of this power failure, whether
Network 1 and 2 were still routed via the switching centre in BH. Or does
that show how long ago I worked for the com's dept?
thanks
Rob
Michael Sanders wrote in message
<961926704.2516.0...@news.demon.co.uk>...
>Or get a clean feed that was almost certainly coming into the UK
>somewhere, route it via BT to Birmingham (or at a pinch ITN, LNN,
>Retuers or APTN if the shit really hit the fan) super a caption over
>it and send it to CP and the energis lines! In cases like this us
>techie broadcasting folk all tend to help each other out, so as long
>as the bit of cable still works you've got a fighting chance!
>
>When I started at LNN in '93 there was still a very old LWT links
>truck parked behind the LWT tower. I was told it was always ready to
>role as it could go to quite a few places to act as a repeater should
>the lines fail. Then they got the satellites and other failsafes so
>they bined it!
>
>--
charles.hope
Rob Dickie <r...@dickie001.freeserve.co.uk> wrote:
> Hi, I was wondering, after following details of this power failure,
> whether Network 1 and 2 were still routed via the switching centre in
> BH. Or does that show how long ago I worked for the com's dept?
Do't you mean "Lines dept"?
AFAIK the ccts go direct to Energis (not BT)
Paul Ratcliffe
wrote:
>I was wondering, after following details of this power failure, whether
>Network 1 and 2 were still routed via the switching centre in BH. Or does
>that show how long ago I worked for the com's dept?
LO SWC bit the dust years ago (about 10).
Andy Hame
retired, and the rest went to Warwick, CAR, SCAR, ATA and OB Comms at Kendal
Ave.
It is still in use, the feeds to the transmitters no-longer pass through
there, although many of the feeds to BT Tower still do. It is currently
looked after by some familiar faces from the SWC maintenance team, although
I hear that there are new plans afoot to close the remaining bits of the old
Comms BH (aka Lines) empire (ATA etc)- but leaving the equipment running!
--
Andy Hame
(Who was responsible for the pulse and bar with the LO SWC / RIP ident - as
seen on TV!)
Rob Dickie
charles.hope wrote in message <49d86ca83ac...@argonet.co.uk>...
>In article <8jo740$1m4$1...@newsg1.svr.pol.co.uk>,
> Rob Dickie <r...@dickie001.freeserve.co.uk> wrote:
>> whether Network 1 and 2 were still routed via the switching centre in
>> BH. Or does that show how long ago I worked for the com's dept?
>
>
>AFAIK the ccts go direct to Energis (not BT)
>
>
although amongst other things they did deal with all the types of BT lines
available.
Rob
Andy Hame
far end of circuits.
The field group moved over to the Links dept at Kendal Ave during the 1960s.
At some time after that there was a general renaming to call both depts
Communications - the KA one was OB Comms.
BH Comms was renamed several times during my time there in the mid and late
1980s and 1990s.
This was tied in with the take over of Comms by Transmitters.
At one point it was CLMS, (Central London Maintenance Services!)
I'm not even sure what they officially answer to currently - as they are
part of IT.
But Comms or Lines still seems to work......
Andy Hame
P.S. Any ex BBC Comms folks lurking on this newsgroup who want an update as
to who is doing what - give me an Email off list, and I'll try to put you in
touch - and let you know of any get togethers coming up.
charles.hope
Rob Dickie <r...@dickie001.freeserve.co.uk> wrote:
> charles.hope wrote in message <49d86ca83ac...@argonet.co.uk>...
> >In article <8jo740$1m4$1...@newsg1.svr.pol.co.uk>,
> > Rob Dickie <r...@dickie001.freeserve.co.uk> wrote:
> >> Hi, I was wondering, after following details of this power failure,
> >> whether Network 1 and 2 were still routed via the switching centre in
> >> BH. Or does that show how long ago I worked for the com's dept?
> >
> >Do't you mean "Lines dept"?
> >
> >AFAIK the ccts go direct to Energis (not BT)
> >
> >
> I'm sure it was the Communications Dept when I was there (circa 1980)
> although amongst other things they did deal with all the types of BT
> lines available.
I think it became Comms Dept in the early 1970s.
Paul Martin
Tony Quinn wrote:
>Totally off topic ... does anybody have a graffik file (almost any
>format would be ok) of any BBC idented P&B ?
I don't remember the BBC putting any ident on pulse&bar in either the
late 70s or early 80s. I suspect it often originated at the
transmitter. This was back in the days when the BBC often used the
electronic "Test Card G" (Philips) on BBC2.
Richard Lamont
p...@nowster-zetnet.co.uk (Paul Martin) writes:
> In article <3lWBfUAW...@sixpints.demon.co.uk>,
> Tony Quinn wrote:
>
>>Totally off topic ... does anybody have a graffik file (almost any
>>format would be ok) of any BBC idented P&B ?
>
> I don't remember the BBC putting any ident on pulse&bar in either the
> late 70s or early 80s. I suspect it often originated at the
> transmitter.
P&B would only have been originated at the transmitter outside programme
hours. It would have had line syncs only, 'cos field sync detectors
were (among other things, which I won't go into) one of the things that
could have brought other transmitters up via the RBS chain.
--
Richard Lamont
ric...@stonix.demon.co.uk
Jim Crowther
<ric...@stonix.demon.co.uk> writes
>field sync detectors
>were (among other things, which I won't go into) one of the things that
>could have brought other transmitters up via the RBS chain.
That's the first time I've heard an explanation for 'potty' syncs, as we
used to call them.
--
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