| Author |
Message |
JC
Guest
|
 Posted:
Sat Jul 23, 2005 1:54 pm Post subject:
connecting PC to TV |
|
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I have UTP cat 5 running all across my house.
Now I would like to play movies on my pc and transer the signal to my
TV over a UTP-cable..
Does anyone have any suggestions how I should be able to manage that
and what additional features are necessary to pull this off ?
Thx in advace |
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Perkowski
Guest
|
| Posted:
Sat Jul 23, 2005 4:20 pm Post subject:
Re: connecting PC to TV |
|
|
JC wrote:
| Quote: | I have UTP cat 5 running all across my house.
Now I would like to play movies on my pc and transer the signal to my
TV over a UTP-cable..
Does anyone have any suggestions how I should be able to manage that
and what additional features are necessary to pull this off ?
Thx in advace
http://www.svideo.com/svideobalun1.html |
Maybe? |
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Bob Vaughan
Guest
|
| Posted:
Sat Jul 23, 2005 8:53 pm Post subject:
Re: connecting PC to TV |
|
|
In article <iPSdnX3hyvwk5X_fRVn-gw@comcast.com>,
Ed Nielsen <egnlsn@comcast.net> wrote:
| Quote: | Perkowski wrote:
JC wrote:
I have UTP cat 5 running all across my house.
Now I would like to play movies on my pc and transer the signal to my
TV over a UTP-cable..
Does anyone have any suggestions how I should be able to manage that
and what additional features are necessary to pull this off ?
Thx in advace
http://www.svideo.com/svideobalun1.html
Maybe?
Now you just have to worry about audio. If you had coax all over the
house it would be a piece of cake.
|
http://www.muxlab.com/products/ve_svd_s-av_balun.html
http://www.basshome.com/category_703.htm
http://www.smarthome.com/7805S.html
google 'svideo balun' for the other 37,000 hits..
--
-- Welcome My Son, Welcome To The Machine --
Bob Vaughan | techie @ tantivy.net |
| P.O. Box 19792, Stanford, Ca 94309 |
-- I am Me, I am only Me, And no one else is Me, What could be simpler? -- |
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Ed Nielsen
Guest
|
| Posted:
Sat Jul 23, 2005 10:04 pm Post subject:
Re: connecting PC to TV |
|
|
Perkowski wrote:
| Quote: | JC wrote:
I have UTP cat 5 running all across my house.
Now I would like to play movies on my pc and transer the signal to my
TV over a UTP-cable..
Does anyone have any suggestions how I should be able to manage that
and what additional features are necessary to pull this off ?
Thx in advace
http://www.svideo.com/svideobalun1.html
Maybe?
Now you just have to worry about audio. If you had coax all over the |
house it would be a piece of cake.
CIAO!
Ed N. |
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|
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Watson A.Name - \"Watt Su
Guest
|
| Posted:
Sun Jul 24, 2005 12:20 am Post subject:
Re: connecting PC to TV |
|
|
"Ed Nielsen" <egnlsn@comcast.net> wrote in message
news:iPSdnX3hyvwk5X_fRVn-gw@comcast.com...
| Quote: | Perkowski wrote:
JC wrote:
I have UTP cat 5 running all across my house.
Now I would like to play movies on my pc and transer the signal to
my
TV over a UTP-cable..
Does anyone have any suggestions how I should be able to manage
that
and what additional features are necessary to pull this off ?
Thx in advace
http://www.svideo.com/svideobalun1.html
Maybe?
Now you just have to worry about audio. If you had coax all over the
house it would be a piece of cake.
|
There is no need for coax for audio. Better without coax.
|
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Gerard Bok
Guest
|
| Posted:
Sun Jul 24, 2005 4:20 pm Post subject:
Re: connecting PC to TV |
|
|
On Sat, 23 Jul 2005 15:51:05 -0700, "Watson A.Name - \"Watt Sun,
the Dark Remover\"" <NOSPAM@dslextreme.com> wrote:
| Quote: |
"Ed Nielsen" <egnlsn@comcast.net> wrote in message
news:iPSdnX3hyvwk5X_fRVn-gw@comcast.com...
Perkowski wrote:
JC wrote:
I have UTP cat 5 running all across my house.
Now I would like to play movies on my pc and transer the signal to
my
TV over a UTP-cable..
Does anyone have any suggestions how I should be able to manage
that
and what additional features are necessary to pull this off ?
Thx in advace
http://www.svideo.com/svideobalun1.html
Maybe?
Now you just have to worry about audio. If you had coax all over the
house it would be a piece of cake.
There is no need for coax for audio. Better without coax.
|
Huh ?
Unless you either have a balanced driver / receiver with proper
twisted cable inbetween or you are transporting audio at speaker
levels, you will NEED some kind of coax :-)
(Or the sound on any program will be very boring: 60 Hz :-)
--
Kind regards,
Gerard Bok |
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Bob Vaughan
Guest
|
| Posted:
Mon Jul 25, 2005 7:00 am Post subject:
Re: connecting PC to TV |
|
|
In article <42e3a399.4656982@News.Individual.NET>,
Gerard Bok <bok118@zonnet.nl> wrote:
| Quote: | On Sat, 23 Jul 2005 15:51:05 -0700, "Watson A.Name - \"Watt Sun,
the Dark Remover\"" <NOSPAM@dslextreme.com> wrote:
"Ed Nielsen" <egnlsn@comcast.net> wrote in message
news:iPSdnX3hyvwk5X_fRVn-gw@comcast.com...
Perkowski wrote:
JC wrote:
I have UTP cat 5 running all across my house.
Now I would like to play movies on my pc and transer the signal to
my
TV over a UTP-cable..
Does anyone have any suggestions how I should be able to manage
that
and what additional features are necessary to pull this off ?
Thx in advace
http://www.svideo.com/svideobalun1.html
Maybe?
Now you just have to worry about audio. If you had coax all over the
house it would be a piece of cake.
There is no need for coax for audio. Better without coax.
Huh ?
Unless you either have a balanced driver / receiver with proper
twisted cable inbetween or you are transporting audio at speaker
levels, you will NEED some kind of coax :-)
(Or the sound on any program will be very boring: 60 Hz :-)
|
The links previously given are for baluns designed for the transport
of audio and video signals over category 5 twisted pair cabling.
A balun is a device designed to convert between balanced and unbalanced
electrical signals, such as between coaxial cable and twin-lead.
http://en.wikipedia.org/wiki/Balun
--
-- Welcome My Son, Welcome To The Machine --
Bob Vaughan | techie @ tantivy.net |
| P.O. Box 19792, Stanford, Ca 94309 |
-- I am Me, I am only Me, And no one else is Me, What could be simpler? -- |
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|
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Gerard Bok
Guest
|
| Posted:
Mon Jul 25, 2005 3:26 pm Post subject:
Re: connecting PC to TV |
|
|
On Mon, 25 Jul 2005 07:00:50 +0000 (UTC),
techie@tantivy.tantivy.net (Bob Vaughan) wrote:
| Quote: | In article <42e3a399.4656982@News.Individual.NET>,
Gerard Bok <bok118@zonnet.nl> wrote:
On Sat, 23 Jul 2005 15:51:05 -0700, "Watson A.Name - \"Watt Sun,
the Dark Remover\"" <NOSPAM@dslextreme.com> wrote:
"Ed Nielsen" <egnlsn@comcast.net> wrote in message
news:iPSdnX3hyvwk5X_fRVn-gw@comcast.com...
Perkowski wrote:
JC wrote:
I have UTP cat 5 running all across my house.
Now I would like to play movies on my pc and transer the signal to
my
TV over a UTP-cable..
Does anyone have any suggestions how I should be able to manage
that
and what additional features are necessary to pull this off ?
Thx in advace
http://www.svideo.com/svideobalun1.html
Maybe?
Now you just have to worry about audio. If you had coax all over the
house it would be a piece of cake.
There is no need for coax for audio. Better without coax.
Huh ?
Unless you either have a balanced driver / receiver with proper
twisted cable inbetween or you are transporting audio at speaker
levels, you will NEED some kind of coax :-)
(Or the sound on any program will be very boring: 60 Hz :-)
The links previously given are for baluns designed for the transport
of audio and video signals over category 5 twisted pair cabling.
A balun is a device designed to convert between balanced and unbalanced
electrical signals, such as between coaxial cable and twin-lead.
|
Yes, thank you. I know what a balun is :-)
It is the 'better without coax' part that I don't understand.
Would a double balun with twisted-pair in between outperform a
straight coax connection on TV-audio ?
Actually, I doubt that.
On audio frequencies and levels, a 'simple balun' requires a
complete mu-metal encased transformer.
Otherwise, just the transformers themself both would pick up as
much noise as the twisted pair suppresses :-)
And this arrangement would still suffer from rather huge losses,
both in level and sound quality. My 2 cents :-)
--
Kind regards,
Gerard Bok |
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Dmitri(Cabling-Design.com
Guest
|
| Posted:
Tue Jul 26, 2005 6:43 am Post subject:
Re: connecting PC to TV |
|
|
Gerard Bok wrote:
| Quote: | Would a double balun with twisted-pair in between outperform a
straight coax connection on TV-audio ?
|
Yes it will. Besides, in many cases a high(er) end audio equipment will
expect ALREADY BALANCED line level input, so you can drop the second balun
or else you have to provide one for your common mode coax signal.
| Quote: | Actually, I doubt that.
On audio frequencies and levels, a 'simple balun' requires a
complete mu-metal encased transformer.
Otherwise, just the transformers themself both would pick up as
much noise as the twisted pair suppresses :-)
And this arrangement would still suffer from rather huge losses,
both in level and sound quality. My 2 cents :-)
|
It was a very good point but you had a wrong conclusion made. In ANY
balanced-signal transmission over any cable that's worth buying these
days, the active equipment will be MUCH more susceptible to EMI than the
cable. Besides, EMI can also (big times!) enter the active equipment via
its power cables. However, it should always be assumed that the active
device bears FCC or EC EMI compatibility approval label else just drop
that one and go buy the approved one. Therefore, you can let electronics
designers worry about EMI shielding INSIDE the boxes (what a daunting task
that is!) and concentrate on laying your cables away from apparent EMI
sources and installing it properly to avoid any physical damage that would
ruin the balance.
And, just to finish it off: in some cases baluns aren't too practical
given cost, reliability (can be torn off the patch cable), size or other
considerations. As a result we end up sending line level audio signals and
composite video via a CAT5E cable without ANY baluns (up to 100 feet), and
no visual picture or audible sound degradation can be found. I'm not
talking about concert halls, obviously, so, if you have "golden ears",
please DO take care of balancing the signals before sending them over UTP.
--
Dmitri Abaimov, RCDD
http://www.cabling-design.com
Cabling Forum, color codes, pinouts and other useful resources for
premises cabling users and pros
http://www.cabling-design.com/homecabling
Residential Cabling Guide
-------------------------------------
##-----------------------------------------------##
Article posted with Cabling-Design.com Newsgroup Archive
http://www.cabling-design.com/forums
no-spam read and post WWW interface to your favorite newsgroup -
comp.dcom.cabling - 2192 messages and counting!
##-----------------------------------------------## |
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|
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Ed Nielsen
Guest
|
| Posted:
Tue Jul 26, 2005 4:20 pm Post subject:
Re: connecting PC to TV |
|
|
Bob Vaughan wrote:
available A/V inputs. If no available inputs, then you have to either
use an A/V A/B switch or modulate at the TV set. If you want to be able
to watch the PC at more than 1 TV, then you need a distribution
amplifier that has several outputs. Then you're faced with the same A/V
input situation at every TV set. You also need to make sure there is a
terminator on every unused outlet. If not, reflections abound.
Much easier to modulate at the PC (to an unused CATV/UHF channel) and
combine it with the cable/satellite distribution system where it becomes
available at all outlets in the house.
CIAO!
Ed N. |
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James Knott
Guest
|
| Posted:
Tue Jul 26, 2005 9:22 pm Post subject:
Re: connecting PC to TV |
|
|
Ed Nielsen wrote:
| Quote: | Much easier to modulate at the PC (to an unused CATV/UHF channel) and
combine it with the cable/satellite distribution system where it becomes
available at all outlets in the house.
|
If you do that, you'd better make sure it's not leaving the house. Cable
companies take a dim view of unauthorized signals on their cable. |
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Gerard Bok
Guest
|
| Posted:
Wed Jul 27, 2005 12:20 am Post subject:
Re: connecting PC to TV |
|
|
On Tue, 26 Jul 2005 01:43:50 GMT,
info_at_cabling-design_dot_com@foo.com
(Dmitri(Cabling-Design.com)) wrote:
| Quote: | Would a double balun with twisted-pair in between outperform a
straight coax connection on TV-audio ?
And, just to finish it off: in some cases baluns aren't too practical
given cost, reliability (can be torn off the patch cable), size or other
considerations. As a result we end up sending line level audio signals and
composite video via a CAT5E cable without ANY baluns (up to 100 feet), and
no visual picture or audible sound degradation can be found.
|
Well, this puzzled me.
I would expect sound to be very noisy (because of lack of
shielding) and video to be ghosty (for lack of proper
termination). And the only way I could come up with involved a
soldering iron :-)
Just to see it for myself, I wired 2 SCART to RJ45 yigs.
First with 3 feet of cat5 cable, later with 25" cat5 cable.
I must admit: I'm astonished. This is quite acceptable.
Quite a learning experience! Thanks!
--
Kind regards,
Gerard Bok |
|
| Back to top |
|
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Bob Vaughan
Guest
|
| Posted:
Wed Jul 27, 2005 11:12 am Post subject:
Re: connecting PC to TV |
|
|
In article <cuSdnYe4f6cKxXvfRVn-tQ@comcast.com>,
Ed Nielsen <egnlsn@comcast.net> wrote:
| Quote: | Bob Vaughan wrote:
In article <iPSdnX3hyvwk5X_fRVn-gw@comcast.com>,
Ed Nielsen <egnlsn@comcast.net> wrote:
Now you just have to worry about audio. If you had coax all over the
house it would be a piece of cake.
http://www.muxlab.com/products/ve_svd_s-av_balun.html
http://www.basshome.com/category_703.htm
http://www.smarthome.com/7805S.html
google 'svideo balun' for the other 37,000 hits..
Which is fine if you just want to go to one outlet AND the TV has
available A/V inputs. If no available inputs, then you have to either
use an A/V A/B switch or modulate at the TV set. If you want to be able
to watch the PC at more than 1 TV, then you need a distribution
amplifier that has several outputs. Then you're faced with the same A/V
input situation at every TV set. You also need to make sure there is a
terminator on every unused outlet. If not, reflections abound.
|
Well, the original request was for a means of sending the signal from his
PC to his TV over UTP cabling, for which the baluns will do just fine.
The original poster did not ask for a means of distributing the signal to
multiple TV's throughout the house, which can be done in several ways,
such as DA's feeding baluns or direct connections, or via a modulated
signal.
With a direct connection you can control who gets to watch the signal,
it's a bit harder with RF. This might be a factor depending on the
content.
| Quote: | Much easier to modulate at the PC (to an unused CATV/UHF channel) and
combine it with the cable/satellite distribution system where it becomes
available at all outlets in the house.
|
Easier, but not as high quality as a component, s-video or composite
video connection. If not done properly, the signal can leak upstream,
which may not be desirable.
I would rank the various signal types in terms of quality as follows:
1. digital
2. component
3. s-video/YC
4. composite
5. RF
Advantages of direct connections: signal quality, access control
Disadvantages: requires discrete input at each tv for each source,
or a switcher.
Advantages of RF: multiple signals on the same wire,
ability to use with any TV.
Disadvantages: signal quality, possible leakage upstream, inablity to
control access.
--
-- Welcome My Son, Welcome To The Machine --
Bob Vaughan | techie @ tantivy.net |
| P.O. Box 19792, Stanford, Ca 94309 |
-- I am Me, I am only Me, And no one else is Me, What could be simpler? -- |
|
| Back to top |
|
|
Dmitri(Cabling-Design.com
Guest
|
| Posted:
Wed Jul 27, 2005 4:20 pm Post subject:
Re: connecting PC to TV |
|
|
Gerard Bok wrote:
| Quote: | Well, this puzzled me.
I would expect sound to be very noisy (because of lack of
shielding) and video to be ghosty (for lack of proper
termination). And the only way I could come up with involved a
soldering iron :-)
Just to see it for myself, I wired 2 SCART to RJ45 yigs.
First with 3 feet of cat5 cable, later with 25" cat5 cable.
I must admit: I'm astonished. This is quite acceptable.
Quite a learning experience! Thanks!
|
You are welcome! I'm glad I could kick in some fresh ideas ;-)
--
Dmitri Abaimov, RCDD
http://www.cabling-design.com
Cabling Forum, color codes, pinouts and other useful resources for
premises cabling users and pros
http://www.cabling-design.com/homecabling
Residential Cabling Guide
-------------------------------------
##-----------------------------------------------##
Article posted with Cabling-Design.com Newsgroup Archive
http://www.cabling-design.com/forums
no-spam read and post WWW interface to your favorite newsgroup -
comp.dcom.cabling - 2207 messages and counting!
##-----------------------------------------------## |
|
| Back to top |
|
|
James Knott
Guest
|
| Posted:
Wed Jul 27, 2005 4:20 pm Post subject:
Re: connecting PC to TV |
|
|
Gerard Bok wrote:
| Quote: | Actually, I doubt that.
On audio frequencies and levels, a 'simple balun' requires a
complete mu-metal encased transformer.
Otherwise, just the transformers themself both would pick up as
much noise as the twisted pair suppresses :-)
And this arrangement would still suffer from rather huge losses,
both in level and sound quality. My 2 cents :-)
|
It's entirely possible to build a transformerless "balun" with op-amps, that
are configured to convert balanced to unbalanced and reverse. They can
also provide gain and have a frequency response going down to DC. Anyone
working with instrumentation would be familiar with such applications. |
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