Monitor cabling

[MadAd]

Can someone with the full tech on monitor cabling please post briefly what the problem is with extending monitors and the cable it runs over- please include coverage of the Q's below.

1) What is the maximum extension distances for what cables @ what resolutions? (bnc especially) Theres what- Normal, expensive and BNC, is that it?

2a) Why do smaller monitors (15") do ok with the cheap extensions (thin wire, about $5 per 2-3m), but the same cable produce ghosting on 17" and above?

2b) Does this mean that the (roughly) $20 per 3m cable thats needed for > 16" also has a max resolution? If so what - It may be above the std 16x12 atm, but for advance knowledge please?

3) Overall, what method produces greatest clarity? Any drawbacks?

4) Is it ok to split the VC VGA output to BNC and a D cable and feed both to the monitor? More to the point, will it give a clearer image or not work because of being different input modes?

5) Anyone doing R&D on wireless monitors?



Thank you for any informative replies

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[capybara]

1. bnc/coax is less lossly than any regular db-15 cabling, but .....

 

[cot]

A good place to look for info on this would be home theater forums - people often drive their projectors/bigscreens/etc with pcs and send the signals over long runs of coax

good high quality coax should do well in the tens of feet range. the longer it gets, the more the quality will matter. I think HD-15 can't compare to coax in long runs

i doubt that running both to a monitor would work, and even if it did it probably wouldn't help. a T from the PC would just serve as another discontinuity in the cable to cause reflections.

Good high quality interconnects are another thing to be careful to use. Again, any discontinuity causes reflections, and good interconnects minimize this. I'd probably go with a short HD-15 -> BNC adapter, some good BNC connectors on good cable (I think quad shield RG6 is supposed to be good) and BNC into the monitor on the other end.

But like I said, home theater forums go into great detail about this. you can actually send video over cat5 with some care too, kind of interesting to look into. Lots easier to run than coax, but there are some considerations involved with that, coax is easier if you don't mind running it and theprice.

 

[capybara]

cot - i agree, but if someone want to go past "tens of feet" they can just add a booster just like the cable tv companies do. just dont use a radio shack booster, the noise factor is too high.