Version 7 > New Church Building
we are going into a new church building and iam in charge of setting everything up has far has the projection system goes i need to know what is the best cable to use s cable or dvi? also we have two projectors how would i link them together and wouldthat work with song show?
Thanks
Newconvenantatl
My guess would be DVI for the cable, but I am not sure of its length limitations.
A distribution amplifier is a must for multiple projectors, and it is highly recommended for a single projector and dual monitors.
If you don't already yhave the projectors, I would recommend shopping around for a package deal. When we started using projection in our church, we went with Fowler because we got the whole package for about 2k more than buying the projector by itself. They provided everything except the labor to set it up.
We did receive a bid a little cheaper than Fowler, but it had a generic PC system, and it wasn't (AFAIK) a Christian Org.
As Gary said, a Distribution Amplifier will give your video signal enough power to get a good signal on multiple devices and/or over long distances.
Any more, Fowler will try to sell you a different brand of worship software. We got our initial set up from them, and they didn't say anything about a Distribution Amplifier or a secondary monitor for the workstation. We just SSP in single monitor mode for a long time, because of the laptop that they packaged for us. They sold us a great screen, an o.k. projector and an underpowered laptop.
Hi, If you want true quality see if your projector supports RGBHV with is also known as VGA imput but if you have the BNC RGBHV it is good too. To split the signal you can buy a Kramer 1X2 VGA pre amp splitter and split the signal at the projectors (this is how we do it with no flicker problems and the signal stays strong) RGBHV is not expsensive as it is a VGA cable. It is also the industry standard for broadcast quality. We have run this to well over 200 feet away from the computer with no problems. If you are a church you can contact Full Compass at www.fullcompass.com and they will have all the cables and the VGA preamp splittter for you. This is the best option, bettetr than Svideo and DVI If you need a video swither Kramer also makes a good product for this I recomend the Kramer VP720xl switch as I used this in our church.
We run 2 Sanyo prjectos mounted in our catwalk RGBHV cables with a 1X2 VGA distribution amplifier with all RGBHV cables. This switch also allows me to send another feed to Choir monitors so they can see the words in case they need it and for that we use 3 42" Plasma TVs. I used a VGA scan converter to convert the signal for the plasmas to RCA cable and I ran RG59 and terminted it with twist on BNC this way I can change connectors from BNC to RCA or to Cable TV what ever we need.
Actually RGBHV is the standard VGA/XVGA signal that video cards in computers have sent for years, using the HD15 connector. It is analog. DVI is the newer digital signal using a different connector.
The issue with cable length for analog is that the voltage gradually drops over distance but unfortunately, with analog, voltage determines the color, so as cable length increases colors become less and less brilliant, whites become grayer, etc. Note that deterioration is gradual with length and it is not necessarily a matter of a blurry or noisy picture. That is why an amplifier is recommended, it boosts the voltage. Digital doesn't have that problem in quite the same way.
We use DVI into our switcher, but the switch outputs to RGBHV.
If you want to still use DVI there is a DVI option for long runs and that is DVI multimode Fiber cable. this will allow long runs using DVI but it is very expensive. You can also use DVI cat 5 extenders but again you are adding things into the mix that could cause problems and you are knocking a signal around.
I have done many projection system installations and have always used RGBHV due to it future use with HD (RGB) and its capability for long runs.