TV distribution around the house - again

"Java Jive" wrote in message
...
This is astonishing to me. I literally can not remember how young I
was when I first learnt that an aerial is connected to the TV via a
single lead! Have these people never noticed that in old houses where
only one room is wired, the TV coax goes straight down to that room
and not back up to the aerial again?
snip top post


A Sparks understanding rarely goes beyond ring mains

Steve Terry
--
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"Java Jive" wrote in message
...
This is astonishing to me. I literally can not remember how young I
was when I first learnt that an aerial is connected to the TV via a
single lead! Have these people never noticed that in old houses where
only one room is wired, the TV coax goes straight down to that room
and not back up to the aerial again?

Well you wouldn't use a ring main for a single socket, would you?

--
Max Demian

In article
,
wrote:
On Jan 27, 1:22 am, widgitt wrote:
To cut an even longer story short, the builder had wired the whole
thing as a ring circuit. Starting at the amp, running round the house
to each of about 8 sockets and back to the amp !

Years ago I was asked to fit an aerial in the loft of a large house
that had been converted into a 32 room old people's home. In the loft
the builder proudly showed me two coaxes, saying, "I've brought both
ends up to the loft so you can connect the aerial to both." I said,
"Yer wot?" and he expanded his explanation. The TV sockets in all 32
rooms and two lounges were in one loop. The eventual outcome was that
an external surface fixed system was installed, but was only after a
prolonged period of poor reception/no reception for the residents.

I met a very similar set up at the BBC pavilion at the Royal Welsh
Showground at Builth Wells. Here the two ends of the ring had been
connected to the outputs of a 2 output preamp.

Of course the architect was the brother-in-law of one of the BBC Welsh
Governors and the electrician was a relation. nuff said.

--
From KT24

Using a RISC OS computer running v5.16

On Jan 27, 2:22*am, Java Jive wrote:
This is astonishing to me. *I literally can not remember how young I
was when I first learnt that an aerial is connected to the TV via a
single lead! *Have these people never noticed that in old houses where
only one room is wired, the TV coax goes straight down to that room
and not back up to the aerial again?

Don't forget that people become electricians almost by chance
sometimes. The candidates don't necessarily have any special aptitude,
and to be honest I find some site electricians (employees) to be of
only average intelligence at best. They learn their own jobs monkey-
fashion and that's the end of it. I very often have to liaise with
these people because they often install our cables, and believe me, if
a thing can be done wrong they'll do it wrong. I'll quote one example
from many. Last year I found a gang of four busy installing in a large
building, called Building 'A'. They were puzzled by a few anomalies
and I had to point out that they were following the plans for Building
'B'. The two buildings were very similar but had slightly different
shapes.

Let's be fair, the rate of pay is pretty abysmal, and anyone with
anything about them either gets promoted or becomes self-employed.

Of course, I must say that I shouldn't tar them all with the same
brush. I have encountered clever, thoughtful, intuitive site
electricians as well as those discussed above. Many times I have
completed my part of the work and I've been able to say to the
electricans, "Well thanks guys, you've done a superb job for me." An
example again from last year, when the sparks installed the whole TV
network to our drawings, with 720 connections, and only made four
mistakes.

Bill

I met a very similar set up at the BBC pavilion at the Royal Welsh
Showground at Builth Wells. Here the two ends of the ring had been
connected to the outputs of a 2 output preamp.

Of course the architect was the brother-in-law of one of the BBC Welsh
Governors and the electrician was a relation. nuff said.


Did it work?
I always recall a plethora of aerials at the RWS pointing almost upwards at
the Builth Wells relay about 1 mile above it. I'm sure the BBC pavilion had
something "quirky" like a colour king or an XG8A in contrast to a sea of
contract 10A and 18A aerials elsewhere on the site.

In article ,
Doctor D wrote:

I met a very similar set up at the BBC pavilion at the Royal Welsh
Showground at Builth Wells. Here the two ends of the ring had been
connected to the outputs of a 2 output preamp.

Of course the architect was the brother-in-law of one of the BBC Welsh
Governors and the electrician was a relation. nuff said.


Did it work? I always recall a plethora of aerials at the RWS pointing
almost upwards at the Builth Wells relay about 1 mile above it. I'm sure
the BBC pavilion had something "quirky" like a colour king or an XG8A in
contrast to a sea of contract 10A and 18A aerials elsewhere on the site.

I never saw what they finally fitted. Certainly, when I was there the
aerial was a contract 10 ele. I suspect I specified ine with a balun,
since there was a requirement for Ceefax reception.

But it was all a long time ago.

--
From KT24

Using a RISC OS computer running v5.16