Re: connecting PC to TV

On Mon, 25 Jul 2005 07:00:50 +0000 (UTC),
techie@xxxxxxxxxxxxxxxxxxx (Bob Vaughan) wrote:

>In article <42e3a399.4656982@xxxxxxxxxxxxxxxxxxx>,
>Gerard Bok <bok118@xxxxxxxxx> wrote:
>>On Sat, 23 Jul 2005 15:51:05 -0700, "Watson A.Name - \"Watt Sun,
>>the Dark Remover\"" <NOSPAM@xxxxxxxxxxxxxx> wrote:
>>
>>>
>>>"Ed Nielsen" <egnlsn@xxxxxxxxxxx> wrote in message
>>>news:iPSdnX3hyvwk5X_fRVn-gw@xxxxxxxxxxxxxx
>>>> 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
.

Relevant Pages

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