Which pips?

In article , tony sayer
wrote:
In article , Dave Plowman (News)
scribeth thus
In article ,
Ian Jackson wrote:
However, the delays on the audio feeds to all the other transmitters
(LW and FM) will vary (especially if carried on telephone lines, and
less so on fibre), so depending on their path lengths, the delays
would vary quite a bit (a few milliseconds?).

The distribution system is digital and will invariably introduce delay.
Maybe not much but easily measurable.

Droitwich at one time had a direct DC analogue line as a backup. Dunno
if it still has.


What all the way to BH?..

So we were told. Probably had to be driven with a 100 volt line amp. ;-)

--
*I don't know what your problem is, but I'll bet it's hard to pronounce

Dave Plowman London SW
To e-mail, change noise into sound.

Peter Duncanson wrote:
On Wed, 11 Sep 2013 15:17:09 +0100, "Norman Wells"
wrote:

I saw an experiment performed on TV, possibly on the Royal Society's
Christmas lectures a few years ago but I can't remember precisely,
that

pedant mode on

Those would have been the Royal Institution Christmas lectures.

The Royal Institution is not the Royal Society.

pedant mode off

Well, I did say I couldn't remember precisely!

On Wed, 11 Sep 2013 18:20:57 +0100, "Norman Wells"
wrote:

Peter Duncanson wrote:
On Wed, 11 Sep 2013 15:17:09 +0100, "Norman Wells"
wrote:

I saw an experiment performed on TV, possibly on the Royal Society's
Christmas lectures a few years ago but I can't remember precisely,
that

pedant mode on

Those would have been the Royal Institution Christmas lectures.

The Royal Institution is not the Royal Society.

pedant mode off

Well, I did say I couldn't remember precisely!

Way back in the 1950s I attended at least one series of those lectures.
That was well before they were televised. The lectures were conducted
according to the normal rules for lectures in that place. There was a
clock centrally positioned on the wall behind the lecturer. The clock
would chime once on the hour and the lecturer would enter and start
lecturing. 60 minutes later the clock would chime again and the lecture
would finish even if the lecturer had to stop speaking in mid-sentence.


--
Peter Duncanson
(in uk.tech.digital-tv)

tony sayer wrote:

Droitwich at one time had a direct DC analogue line as a backup. Dunno if
it still has.


What all the way to BH?..

It's that green cable running along the side of the motorway.

Bill

"Dave Plowman (News)" wrote in message
...
In article ,
R. Mark Clayton wrote:
The FM radio pips are accurate - I have a radio controlled watch (from
Rugby) programmed to bleep twice on the hour. The two bleeps go around
the sixTH pip for the hour.

But given the slow speed of sound, wouldn't that depend on how close your
ears are to the radio and watch?

The bleeps and bips are only about a quarter of a second, so as long as the
watch bleeps around the last bips then I know it is within 0.5s.

One could make the same argument about the transmitters, but the delay on
the rebroadcast FM is probably similar to the propagation delay from Rugby.


--
*How does Moses make his tea? Hebrews it.*

Dave Plowman London SW
To e-mail, change noise into sound.

In article , R. Mark Clayton
wrote:

"Dave Plowman (News)" wrote in message
...
In article , R. Mark Clayton
wrote:
The FM radio pips are accurate - I have a radio controlled watch (from
Rugby) programmed to bleep twice on the hour. The two bleeps go
around the sixTH pip for the hour.

But given the slow speed of sound, wouldn't that depend on how close
your ears are to the radio and watch?

The bleeps and bips are only about a quarter of a second, so as long as
the watch bleeps around the last bips then I know it is within 0.5s.

One could make the same argument about the transmitters, but the delay on
the rebroadcast FM is probably similar to the propagation delay from
Rugby.

what happens at Rugby, these days?

--
From KT24

Using a RISC OS computer running v5.18

"charles" wrote in message
...
In article , R. Mark Clayton
wrote:

"Dave Plowman (News)" wrote in message
...
In article , R. Mark Clayton
wrote:
The FM radio pips are accurate - I have a radio controlled watch (from
Rugby) programmed to bleep twice on the hour. The two bleeps go
around the sixTH pip for the hour.

But given the slow speed of sound, wouldn't that depend on how close
your ears are to the radio and watch?

The bleeps and bips are only about a quarter of a second, so as long as
the watch bleeps around the last bips then I know it is within 0.5s.

One could make the same argument about the transmitters, but the delay on
the rebroadcast FM is probably similar to the propagation delay from
Rugby.

what happens at Rugby, these days?

30 men run up and down a field after a mis-shaped ball.

The transmitter moved to Anthorn in 2007 SP


--
From KT24

Using a RISC OS computer running v5.18

R. Mark Clayton wrote:

what happens at Rugby, these days?

Many years ago I drove a large vehicle through the town wondering what
the smell was. I'd got the handbrake on.

Bill

On Thu, 12 Sep 2013 00:05:34 +0100
Bill Wright wrote:

R. Mark Clayton wrote:

what happens at Rugby, these days?

Many years ago I drove a large vehicle through the town wondering
what the smell was. I'd got the handbrake on.

Bill

It wasn't very effective at stopping the vehicle, then.

--
Davey.

Davey wrote:
On Thu, 12 Sep 2013 00:05:34 +0100
Bill Wright wrote:

R. Mark Clayton wrote:

what happens at Rugby, these days?
Many years ago I drove a large vehicle through the town wondering
what the smell was. I'd got the handbrake on.

Bill

It wasn't very effective at stopping the vehicle, then.

In those days few handbrakes were.

Bill