vga over Cat5e

That's the problem.
VGA requires at least 3 75 Ohm coax cables to carry RG and B.
You're using 110 Ohm twisted pairs, the impedance mismatch is causing signal reflections (ghosting).
If you must use cat5, use the proper baluns to balance the unbalanced video signals and properly match the cables characteristic impedance.

Here is an option http://www.startech.com/AV/Extenders/VGA/Ethernet-to-VGA-over-IP-Converter~IPUSB2VGA and another http://kvms.com/

http://www.cablestogo.com/product_list.asp?cat_id=3448 http://www.instructables.com/id/Make...dering-is-fun/

http://www.ambery.com/2in8outvgama.html
http://www.smartvm.com/VGA-Video-Mat...ktop-P7533.htm

In order to go with more than one switcher, you will need multiple dual-head video cards.

You used Monoprice in a commercial setting? Ugh.

Some people do. And your point is.

He's feeding the same thing to 25 monitors, he needs a distribution amp, not a switcher, and the correct cabling or the proper baluns, not an expensive vga over ip device or multiple video cards.



Google "VGA over cat 5 BalUn"

Yes, it is not cheap. You want to do something that really is only used really in certain circumstances. Back in the day when computers were expensive, yes, you would see multiple monitors split off With the advent of terminal software like Teamviewer, DLP & LCD projectors, Whiteboards, it is easier to do through IP applications, or face to face with a projector, than having each individual sit at a desk with you expecting them to always be watching what the instructor wants them to see, when they can look up on the wall at the projector showing the same thing on a screen.

Already gave you a couple. If you find any more, they will be pretty much the same as already pointed out in this thread. Here are some more if you are bored with the current choices http://audio-video-supply.markertek....00&isort=price BTW, they go as high as $38k.

Greg, why do you bother?
You provided a link to a bunch of matrix switchers, not BalUns. No BalUn is 38K.

Daryl, it might be cheqaper for you to replace the cat 5 with coax, if you don't want to spend the money on BalUns.

NEW: COMPONENT & VGA OVER COAX TRANSMITTER The VPN-11 and VPN-12 are a transmitter and receiver for component or computer graphics video signals. The VPN-11 converts the incoming signal to a 12-pin terminal block for transmission over coax cable and the VPN-12 converts the signal back into a component or computer graphics video signal.

• High Bandwidth: 450MHz (-3db)
• HDTV Compatible
• Inputs (VPN-11) - 15-pin HD & 3 RCA (selectable)
• Outputs (VPN-12) - 15-pin HD or 3 RCA
• Power Connect™ System - Only the transmitter needs to be connected to a power source. The VPN-12 receives 12V DC through the coax from the VPN-11.
• Compact Size - Part of the Kramer TOOLS™ family of compact, high quality and cost effective solutions

INPUT:1 Y, B-Y, R-Y or RGB on 3 RCA connectors; 1 XGA on an HD15 connector (not simultaneous)OUTPUT:1 RGBHV or Y, B-Y, R-Y or RGB on two 6-pin terminal block connectorsMAX. OUTPUT LEVEL:2.3VppBANDWIDTH (-3dB):450MHz, (fully loaded)DIFF. GAIN:0.05%DIFF. PHASE:0.04 Deg.K-FACTOR:0.1%S/N RATIO:74dB @ 5MHzCROSSTALK (all hostile):-42dB @ 5MHz, XGA into YUVCONTROLS:1 input selector pushbuttonVIDEO COUPLINGCPOWER SOURCE:12V, 100mADIMENSIONS:12cm x 7.15cm x 2.76cm (4.7' x 2.8' x 1.08'), W, D, HWEIGHT:0.3 kg. (0.67 lbs.) approx. (each)ACCESSORIES:Power supply, mounting bracket (each)OPTIONS:RK-T1, RK-T3, 19 inch rack adapters, Kramer BC-3X2T7S cable

http://www.prosecuritys.com/vpn-11.html

http://audio-video-supply.markertek.....x=0&IMAGE.y=0

VGA contians 5 signals, R, G, B, H and V.

google for "vga to coax breakout".

It sometimes depends on the application. I ran three 100foot shielded CAT5 lines for VGA in a security system. The display was 12 to 16 cameras per screen.

For that application, the artifacts caused by the cable were secondary to the poor quality video images being provided in the first place.

Now at home in my HT monitor wall I did use 5x 75ohm mult cable.

Sorry to bump an old thread, but I have a similar question.

I want to extend the monitor signal from a laptop. Monitor only, no mouse keyboard etc.

The wiring is existing in the house, and is plain Cat5, not Cat5e, but otherwise very good condition, modern cable. It's a homerun between both locations, no splices. The run is 100' or so.

I have seen the "VGA over Cat5" adapters on MonoPrice. Would this be okay in my application?

Do I even need to use VGA? I have not bought the display yet. Would I be better off buying a TV and using "HDMI over Cat5" ? Or maybe DVI?

Really, the only thing that is set in stone is the cable. Everything else I've yet to buy. I could get any adapters, any display, any laptop.

Thanks guys.

Why do you want to tether the laptop to a monitor, unless it is sitting in one place. If it has svideo or vga output, you can do it that way. Otherwise, what in particular are you wanting to do with the laptop, that you want to put it up on a hd set?

Yeah, would be helpful to know what you're trying to accomplish...

But you'll definitely have better luck with a VGA extender than an HDMI one. VGA signals will be much more forgiving with the "non-e" cat5.

Jeff

Thanks for the info on VGA vs HDMI. VGA will be easier anyway, as I may end up using an existing LCD monitor I have.

The main goal for the remote monitor will be to view a Megapixel IP cam feed. It will have other duties as well, like weather info etc. It will be mounted in a strategic spot in the house. It will be used as reference only, and will not need to act as a workstation in any way.

The laptop will not be 'mobile', and will not get much direct use. Hard to explain... It will act as a 'server' if you will, and it will be in a somewhat remote location. I will access it regularly via remote desktop. Everything is on the same network, all hard line, no wireless.

Laptop instead of desktop/server for a whole slew of reasons.

I have done all of this before, with great success. The only thing I didn't do before is the remote monitor. It was the only thing missing in my prior application. This time, all the components will be even better (cam quality, software, server etc)

I don't expect a perfectly clear, vivid, full high definition picture on this remote monitor. I won't be watching movies or anything. I just want a normal picture that I can view a higher end IP cam feed on, some desktop gadgets, and maybe some other things. No audio.

Think I will be okay with a regular 21" LCD monitor and Monoprice Cat5/VGA adapters?

For the OP, why not use some form of meeting / desktop sharing software (Lync, Skype, Communicator, Live Meeting, Go to Meeting, etc., etc.)? Use your existing Cat5e infrastructure and share the teacher's desktop. Not everything has to have a HW solution.

Klaus,
Can you use the existing Cat5 to pull Cat5e?

Not really. It would be a huge pain.

From what I've read, regular 5 should work. I hope so.

Update, looks like it's not an issue. I haven't had a chance to make it out there to verify the cable till tonight. I just figured all along it was regular Cat5, not sure why. I feel better now

So, you ASSUMED...

Yes, I assumed it was just Cat5

So you guys think I will be good to go with the Monoprice VGA over Cat5 units in my application??

Edit: Nice theater build pics Jautor

Price is certainly right - I was going to suggest the MuxLab products, but at 1/2 the street price, that's the one to try. Make sure it supports whatever resolution you're going to use first, though.


Thanks!

Jeff

Honestly, I don't care about the price near as much as I care that it works.

Think I might be better off with the Muxlab stuff? Like this?

http://www.smarthome.com/78050/Video...-500040/p.aspx

http://www.smarthome.com/78051/Video...-500042/p.aspx

Monoprice is good about returns, AFIAK (I've never had to send anything back), but the MuxLub gear, in general, is rock solid.