# Wireless VGA Transmitter? **URL:** \ **Category:** Factual Questions\ **Created:** [December 10, 2003, 12:40am UTC](https://boards.straightdope.com/t/wireless-vga-transmitter/218048 "2003-12-10T00:40:54Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Valgard](https://avatars.discourse-cdn.com/v4/letter/v/7feea3/32.png) [@Valgard](https://boards.straightdope.com/u/Valgard)\ **Post date:** [December 10, 2003, 12:40am UTC](https://boards.straightdope.com/t/wireless-vga-transmitter/218048/1 "2003-12-10T00:40:54Z")
Hi, I’ve got a problem at work and wonder if any Dopers can help out. We’ve got a 42" plasma screen with VGA inputs (it can be plugged directly into a PC and used as a monitor) which I’d like to connect wirelessly. The idea is to have the screen at one end of a conference room and the PC at the other end, use the screen as the PC display, without running physical cables in-between. I have tried this device: [http://www.ramelectronics.net/html/PC-TV\_GWB-4000.html](http://www.ramelectronics.net/html/PC-TV_GWB-4000.html) And it’s not suitable - converts VGA to RCA which is then transmitted to a receiver. The quality is horrible - it’s literally unreadable. Yes I went through heaps of troubleshooting and spent time with manufacturer’s tech support. So, does anyone know of a wireless VGA system? Something with VGA into the transmitter and VGA out at the receiver? I’ve spent many hours on Google digging around and haven’t found anything. Thanks for any leads! ---
**Author:** ![Punoqllads](https://avatars.discourse-cdn.com/v4/letter/p/d2c977/32.png) [@Punoqllads](https://boards.straightdope.com/u/Punoqllads)\ **Post date:** [December 10, 2003, 1:03am UTC](https://boards.straightdope.com/t/wireless-vga-transmitter/218048/2 "2003-12-10T01:03:39Z")
If you were willing to put a PC at both ends, and have an 802.11 infrastructure of some sort, you could run [VNC](http://www.realvnc.com) and control the desktop of the PC at the screen side with the other PC at the other side of the room. ---
**Author:** ![astro](https://avatars.discourse-cdn.com/v4/letter/a/9dc877/32.png) [@astro](https://boards.straightdope.com/u/astro)\ **Post date:** [December 10, 2003, 1:04am UTC](https://boards.straightdope.com/t/wireless-vga-transmitter/218048/3 "2003-12-10T01:04:36Z")
['Wireless VGA/TV Converter](http://www.smarthome.com/7743B.html) [Ultimate Wireless](http://grandtec.com/ULTIMATEWIRELESS.HTM) FWIW wouldn’t it make a lot more sense to put the PC by the screen and used a wired video connection for maximum quality, since wirelessly broadcasting and receiving high quality, stable video is difficult to do on the cheap, and simply use a wireless bluetooth mouse and keyboard or media presentation controller for remote control. Your effective control distance is about 30 feet and bluetooth is much more reliable and has longer range than older wireless RF devices. The only catch is that bluetooth units are about twice (or more) the price of the older RF style wireless mouse/keyboard/pointer type controllers. See [Logitech Bluetooth](http://www.logitech.com/index.cfm?page=products/features/cordlesstopics&CRID=1844&parentCRID=272&contentID=7264&countryid=19&languageid=1) ---
**Author:** ![ftg](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/ftg/32/2801_2.png) [@ftg](https://boards.straightdope.com/u/ftg)\ **Post date:** [December 10, 2003, 1:59am UTC](https://boards.straightdope.com/t/wireless-vga-transmitter/218048/4 "2003-12-10T01:59:57Z")
Note that there are KVM devices that work over Ethernet. Just don’t use the K and M. Wireless is these kinds of situations are a lose. ---
**Author:** ![Valgard](https://avatars.discourse-cdn.com/v4/letter/v/7feea3/32.png) [@Valgard](https://boards.straightdope.com/u/Valgard)\ **Post date:** [December 10, 2003, 3:10am UTC](https://boards.straightdope.com/t/wireless-vga-transmitter/218048/5 "2003-12-10T03:10:12Z")
> [@](#): > > \*Originally posted by astro \* > \*\*['Wireless VGA/TV Converter](http://www.smarthome.com/7743B.html) > > [Ultimate Wireless](http://grandtec.com/ULTIMATEWIRELESS.HTM) > > \*\* Thanks Astro, unfortunately those are both the same device that I already tried (it’s available “rebranded” from a number of resellers but it’s literally the same gadget). I’m going to discuss with the boss the possibility of just having a long, concealed VGA cable running the length of the room or something. We don’t use 802.11x for security reasons, very important in our line of work, so I can’t go that way which is a pity. ---
**Author:** ![Shalmanese](https://avatars.discourse-cdn.com/v4/letter/s/45deac/32.png) [@Shalmanese](https://boards.straightdope.com/u/Shalmanese)\ **Post date:** [December 10, 2003, 3:50am UTC](https://boards.straightdope.com/t/wireless-vga-transmitter/218048/6 "2003-12-10T03:50:40Z")
Good video requires an hefty amount of bandwidth to do nicely which current wireless solutions just dont have. In the worst case, you looking at something like 1600x1200x8x60 bytes per second which is 921Mbits/second or nearly 100 times what 802.11 can handle. ---
**Author:** ![astro](https://avatars.discourse-cdn.com/v4/letter/a/9dc877/32.png) [@astro](https://boards.straightdope.com/u/astro)\ **Post date:** [December 10, 2003, 4:08am UTC](https://boards.straightdope.com/t/wireless-vga-transmitter/218048/7 "2003-12-10T04:08:35Z")
> [@](#): > > \*Originally posted by Valgard \* > \*\*Thanks Astro, unfortunately those are both the same device that I already tried (it’s available “rebranded” from a number of resellers but it’s literally the same gadget). > > I’m going to discuss with the boss the possibility of just having a long, concealed VGA cable running the length of the room or something. We don’t use 802.11x for security reasons, very important in our line of work, so I can’t go that way which is a pity. \*\* FYI [What is the maximum length of cable for a DVI and VGA?](http://www.scala.com/hardware/dvi-vga-cable.html) ---
**Author:** ![Valgard](https://avatars.discourse-cdn.com/v4/letter/v/7feea3/32.png) [@Valgard](https://boards.straightdope.com/u/Valgard)\ **Post date:** [December 10, 2003, 6:04am UTC](https://boards.straightdope.com/t/wireless-vga-transmitter/218048/8 "2003-12-10T06:04:40Z")
Thanks for the info Astro and excellent point Shalmanese. I’ll see what I can do. “No” is an acceptable answer at work as long as I can justify it.