TV Interfernce

Julius_911 wrote on 6/1/2003, 9:10 PM

Hi All,

Does anyone know how to eliminate the TV interence on my montior? You see I have an external TV monitor to basically view the output, however everytime I turn the TV on I get interfernce on my PC monitor and on the TV monitor..it looks like the TV effect in vegas (little thin lines across my screen). Anyway to avoid this other than turning the TV off?

Thanks

Comments

rmack350 wrote on 6/1/2003, 11:09 PM

Yes but not in a practical way.

You can get a mu-metal casing to go around the NTSC monitor. Ugly and clunky but at least it's expensive.

You can move the NTSC monitor farther away. I'd think that just a foot would do it.

You could get an LCD computer monitor but that would also be expensive. However, if you plan to go to dual monitors you could make the second one an LCD screen and put it next to the NTSC monitor.

Rob Mack

RBartlett wrote on 6/2/2003, 5:11 AM

Try setting the computer monitor to 60Hz or 120Hz, possibly 90Hz NTSC, or 100Hz possibly 75Hz in PAL. Only doing this if your PC monitor supports your chosen rate or is protected from out of spec settings.

The effect will still probably scroll in one direction or the other, as there will be nothing to lock the frequencies together. The difference between your computer monitor frequency and the video monitor is the target to reduce to nothing.

Even with good shielding on either monitor, cables can also radiate interference without good screening. You can use a VGA screen as a monitor with a number of converters - but a studio monitor is what you want for color control and page area quality. These usually sync at rates more commensurate with your desktop resolution/freq. Studio monitors however are usually very well shielded, as are even some very cheap CRT computer monitors, more so in recent years from high street brand names.

Julius_911 wrote on 6/2/2003, 8:07 AM

Thanks. Moving the TV about 2 feet and moving the wires so that they don't touch did the trick.