TV distribution system project

My own TV distribution system was in need of attention. It had a lot of
minor faults. Then I learnt about muxes 7 and 8, and the local
transmissions, none of which would be carried by the system without
modification. Being more-or-less retired I decided I had the time to do
something about it. However I didn’t want to spend money on it. So I
decided to do the whole thing from bits and bobs that were lying around.
This meant that the existing CCTV equipment would be retained, and the
‘in house’ signals would be distributed as analogue channels rather than
digital multiplexes.

One day I will have a new CCTV DVR, one that will record more channels,
so I wanted to get the RF parts of the system ready to carry a few more
channels.

In theory we will be able to receive the local TV muxes from Crosspool,
Emley Moor, and Bilsdale when they start, and although I don’t expect
the material broadcast to be riveting I thought it would be amusing in
an ironic way to have the channels available to watch.

This is the ‘head-end’ schematic.
https://dl.dropboxusercontent.com/u/...2014%20v02.pdf

This is the channel plan.
https://dl.dropboxusercontent.com/u/...Jan%202014.pdf

I’ve had to ‘tippex over’ various parts of these pages, for security
reasons.

Here are some pictures.
https://dl.dropboxusercontent.com/u/...E/P1101149.JPG
https://dl.dropboxusercontent.com/u/...E/P1101151.JPG
https://dl.dropboxusercontent.com/u/...E/P1101152.JPG
https://dl.dropboxusercontent.com/u/...E/P1101153.JPG

Irrelevant, but I found this on a shelf in the shed this morning.
https://dl.dropboxusercontent.com/u/...E/P1091148.JPG

Bill

On 10/01/2014 13:34, Bill Wright wrote:
My own TV distribution system was in need of attention. It had a lot of
minor faults. Then I learnt about muxes 7 and 8, and the local
transmissions, none of which would be carried by the system without
modification. Being more-or-less retired I decided I had the time to do
something about it. However I didn’t want to spend money on it. So I
decided to do the whole thing from bits and bobs that were lying around.
This meant that the existing CCTV equipment would be retained, and the
‘in house’ signals would be distributed as analogue channels rather than
digital multiplexes.

One day I will have a new CCTV DVR, one that will record more channels,
so I wanted to get the RF parts of the system ready to carry a few more
channels.

In theory we will be able to receive the local TV muxes from Crosspool,
Emley Moor, and Bilsdale when they start, and although I don’t expect
the material broadcast to be riveting I thought it would be amusing in
an ironic way to have the channels available to watch.

This is the ‘head-end’ schematic.
https://dl.dropboxusercontent.com/u/...2014%20v02.pdf

This is the channel plan.
https://dl.dropboxusercontent.com/u/...Jan%202014.pdf


I’ve had to ‘tippex over’ various parts of these pages, for security
reasons.

Here are some pictures.
https://dl.dropboxusercontent.com/u/...E/P1101149.JPG
https://dl.dropboxusercontent.com/u/...E/P1101151.JPG
https://dl.dropboxusercontent.com/u/...E/P1101152.JPG
https://dl.dropboxusercontent.com/u/...E/P1101153.JPG

Irrelevant, but I found this on a shelf in the shed this morning.
https://dl.dropboxusercontent.com/u/...E/P1091148.JPG

Bill

Like you, I have been hoarding or buying TV aerial system components...
I now need to assemble & configure...

I now have 4 Log periodics for Sutton Coldfield, Sandy Heath, Oxford and
Waltham.

A FM vertical dipole

2 DAB 5 element aerials

4 Televes Avant 5's

8 CCTV cameras and 8 ch DVR

dish for sky/freesat with quattro LNB

2 off triax 5 x 16 multiswitches

1 multiswitch trunk amplifier

2 trunk 2 way splitter block (to split & feed two multiswitches)

All I need now are 8 off UHF modulators for teh CCTV cameras.

I have already cabled up probably half the rooms so far back to the loft
where the new headend is going...

Oh, and a few UPSes too....

I have literally this week bought a used spectrum analyser so I can set
everything up correctly.

I'll post some pics when I complete it and we can compare notes....

Stephen.

On 10/01/2014 14:14, Stephen wrote:
On 10/01/2014 13:34, Bill Wright wrote:
My own TV distribution system was in need of attention. It had a lot of
minor faults. Then I learnt about muxes 7 and 8, and the local
transmissions, none of which would be carried by the system without
modification. Being more-or-less retired I decided I had the time to do
something about it. However I didn’t want to spend money on it. So I
decided to do the whole thing from bits and bobs that were lying around.
This meant that the existing CCTV equipment would be retained, and the
‘in house’ signals would be distributed as analogue channels rather than
digital multiplexes.

One day I will have a new CCTV DVR, one that will record more channels,
so I wanted to get the RF parts of the system ready to carry a few more
channels.

In theory we will be able to receive the local TV muxes from Crosspool,
Emley Moor, and Bilsdale when they start, and although I don’t expect
the material broadcast to be riveting I thought it would be amusing in
an ironic way to have the channels available to watch.

This is the ‘head-end’ schematic.
https://dl.dropboxusercontent.com/u/...2014%20v02.pdf

This is the channel plan.
https://dl.dropboxusercontent.com/u/...Jan%202014.pdf



I’ve had to ‘tippex over’ various parts of these pages, for security
reasons.

Here are some pictures.
https://dl.dropboxusercontent.com/u/...E/P1101149.JPG
https://dl.dropboxusercontent.com/u/...E/P1101151.JPG
https://dl.dropboxusercontent.com/u/...E/P1101152.JPG
https://dl.dropboxusercontent.com/u/...E/P1101153.JPG

Irrelevant, but I found this on a shelf in the shed this morning.
https://dl.dropboxusercontent.com/u/...E/P1091148.JPG

Bill

Like you, I have been hoarding or buying TV aerial system components...
I now need to assemble & configure...

I now have 4 Log periodics for Sutton Coldfield, Sandy Heath, Oxford and
Waltham.

A FM vertical dipole

2 DAB 5 element aerials

4 Televes Avant 5's

8 CCTV cameras and 8 ch DVR

dish for sky/freesat with quattro LNB

2 off triax 5 x 16 multiswitches

1 multiswitch trunk amplifier

2 trunk 2 way splitter block (to split & feed two multiswitches)

All I need now are 8 off UHF modulators for teh CCTV cameras.

I have already cabled up probably half the rooms so far back to the loft
where the new headend is going...

Oh, and a few UPSes too....

I have literally this week bought a used spectrum analyser so I can set
everything up correctly.

I'll post some pics when I complete it and we can compare notes....

Stephen.


Incidentally, is there a cheap way to transpose a local or mux 7 or 8
onto another frequency as there are a couple of co-channel muxes to deal
with...

Bill Wright wrote:

My own TV distribution system was in need of attention.

You have email.

I wish I could even begin to understand this! But well done - a tidy job.

--

DerbyBorn

Stephen wrote:

Incidentally, is there a cheap way to transpose a local or mux 7 or 8
onto another frequency as there are a couple of co-channel muxes to deal
with...

Not cheap, no.

Bill

Dave Plowman (News) wrote:

I know you're only sniping at me because I always get the better of you
when we discuss politics.

So you're happy with them looking a mess? Figures.

David, you are absolutely pathetic. There's so much I could say, but
common humanity forbids it. Go in peace poor David, go in peace. Creep
amongst the shadows, as your sort must, until you meet the forgiving
peace of the grave. Then Mother Nature can start to forget one of her
greatest mistakes. In the history of the world there have been a
trillion lives, but even if we include in our reckoning the life of a
single-celled creature that died 300 million years ago in what would one
day be South London without splitting in two or even contributing to the
modern world's supply of oil, your life has been utterly pointless. Once
you are gone humanity will breathe a sigh of relief because your
suffering will be over and so will ours.

Bill

Bill Wright wrote:

My own TV distribution system was in need of attention.
This is the channel plan.
https://dl.dropboxusercontent.com/u/...Jan%202014.pdf

Is your old rule of thumb to avoid +/-5 and +/-9 channel spacing no
longer important, or just impossible to achieve with so many
muxes/modulators?

Bill Wright wrote...

In theory we will be able to receive the local TV muxes from Crosspool,
Emley Moor, and Bilsdale when they start, and although I don’t expect
the material broadcast to be riveting I thought it would be amusing in
an ironic way to have the channels available to watch.

This is the ‘head-end’ schematic.
https://dl.dropboxusercontent.com/u/...2014%20v02.pdf

This is the channel plan.
https://dl.dropboxusercontent.com/u/...%20plan%20Jan%
202014.pdf

Very neat and impressive work. And mostly incomprehensible to me:-(

Would you install something this complex for an ordinary home punter,
and how does it look to the end user? I.E. could they plug a
replacement TV or stb into one of the outlets, run autotune and operate
as normal but with extra channels, or do you have to know your way
around the system or use manual tune etc to set things up?

--
UnsteadyKen

In article ,
Bill Wright wrote:
I know you're only sniping at me because I always get the better of
you when we discuss politics.

So you're happy with them looking a mess? Figures.

David, you are absolutely pathetic. There's so much I could say, but
common humanity forbids it.

If only.

Those Belling Lee plugs look like they were fitted by an amateur. Or a pro
with no pride in his work. No matter how you bluster.

I do realise you post such pictures hoping for adulation from your adoring
public. Or something. But I've been around high quality wireman work all
my working career, and any broadcast wireman who did work like that would
be sacked.

--
*It's o.k. to laugh during sexŒ.Œ.just don't point!

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