RE: Re: OT? Radio monitor / cable extension

["Keith Doxey" <ukha@xxxxxxx>]

Cable length is dependant on several things.

Quality of cable (we have some monitors running over 30 to 40 metres on
multicore coax. I have a VGA plasma screen running over 185 metres on CAT5
with the prototype KAT5 VGA.

Resolution and Refresh rate (go for the lowest possible refresh for maximum
distance)

Drive capability of graphics card. (Laptops cant drive as hard as some PC
graphics cards)
You can get distribution amps to drive longer cables or multiple monitors
but they get expensive.

KAT5 VGA will need a CAT5 cable.

What are you trying to achieve and over what kind of distance ?


Hope that helps

Keith


-----Original Message-----
From: Brian G. Reynolds [mailto:brian.g.reynolds@xxxxxxx]
Sent: 03 November 2001 23:34
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] Re: OT? Radio monitor / cable extension


Thanks guy's, Keith, how long can an extension be?

What about KAT VGA, will this still need cable connection?

B.

> -----Original Message-----
> From: Keith Doxey [mailto:ukha@xxxxxxx]
> Sent: 03 November 2001 22:20
> To: ukha_d@xxxxxxx
> Subject: RE: [ukha_d] Re: OT? Radio monitor / cable extension
>
>
> The reason the extension is thinner is that it is probably a
> multicore cable
> with an overall screen whereas the monitor cable will be a proper
> multi-coax
> cable.
>
> You will get ghosting at higher resolutions and refresh rates. I have
that
> problem with a lead I am using for a switchbox. OK at VGA and
> SVGA but take
> it to XGA (1024x768) or higher and there is bad ghosting.
>
> To answer Brians question, as far as I am aware, there is no RF
> VGA link and
> most likely never will be. The bandwidth of a VGA signal is far to
high to
> send by RF. The only way to do it is to use TVout (Composite) and
stick it
> into a Video Sender. It would be virtually unreadable even at 640x480.
> Compare the TV out of your Radeon card to the monitor output. There is
no
> comparison. Monitor is crystal clear, TVout S-Video is quite good,
TVout
> Composite is just acceptable. Then consider the difference between
SCART
> Composite from satellite and RF distribution and imagine that for the
PC
> output.
>
> Your current options are....
> 	Cheapish VGA extensions that will suffer ghosting.
> 	Good quality VGA cable at about 5-00 per metre
> 	KAT5 AVS to distribute S-Video from TVout
> 	Commercial VGA over CAT5 at about 250 - 400 per set.
> 	Wait for KAT5 VGA.
>
> Hope that helps
>
> Keith
>
> -----Original Message-----
> From: Stuart Whyte [mailto:stuart@xxxxxxx]
> Sent: 03 November 2001 21:01
> To: ukha_d@xxxxxxx
> Subject: [ukha_d] Re: OT? Radio monitor / cable extension
>
>
> Brian,
>
> I use a monitor extention cable, and it seems to work OK.  One thing
> I have never understood though, is that the extention cable is about
> half the cross-sectional area than the actual monitor lead.  Anyone
> (Keith) know if this is likely to affect the display??
>
> Stuart
>
> --- In ukha_d@y..., "Brian G. Reynolds"
<brian.g.reynolds@n...> wrote:
> > Hi all, sad day today, another singly bites the dust? Phil
married,
> dam
> > shame, still these things happen?....:-)))))
> >
> > A question if I may, as I now have an RF mouse/keyboard is there
> such a
> > thing for a monitor? some how I doubt it.
> >
> > What about monitor extension leads? I think these exist but do
they
> work?
> >
> > I bet Keith has an answer for this?
> >
> > B.
>
>
>
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