majka (10/25/82)
I don't know the regulations about electronic equipment in general (i.e. computers), but I'm afraid that the laws concerning TVI in this case will be rather like those that apply to HAM Radio operations: The TV has the benefit of the doubt. Serious mental illness is caused by TV. Marc Majka UBC Lab. for Computational Vision. (microsoft!uw-beaver!ubc-vision!majka)
jhh (10/25/82)
Most likely, there was a notice to the effect: Warning This equipment generates, uses, and can radiate radio frequency energy and if not installed and used in accordance with the instructions manual, may cause interference to radio communications... Operation of this equipment in a residential area is likely to cause interference in which case the user AT HIS OWN EXPENSE will be required to take whatever measures may be required to correct the interference. You probably have to either get a less noisy terminal, or supply her with the appropriate filtering to protect her picture. John Haller ihldt!jhh
rcf (10/25/82)
You might try changing outlets, ask them to change outlets, buy an line filter of some sort, since power lines sometimes carry interference.
rjk (10/25/82)
Try covering the inside of your terminal with tin foil and grounding it. Don't cover the vents, however. If the vents are very large, cover them with steel window screen and ground. It's a kludge, but it did the trick with an early model VT100 that I have. Randy King ..we13!rjk
pdh (10/26/82)
If the terminal is not clearly marked as being certified by the FCC as ok for use in residential zones, then you are responsible for providing adequate shielding to prevent excessive interference to local televisions. Very few, if any terminals are adequately shielded, and neighbors are within their legal rights to demand that you take corrective measures. The television's shielding has nothing to do with it; the terminals are at fault here. I have had no end of problems with various computer systems in my home destroying any semblance of TV reception nearby. Fortunately, though, providing adequate shielding for your terminal/ home computer is not all that hard. A metal case or surrounding (e.g. aluminum foil in some cases) is usually enough. Most of the time, you can get adequate shielding without ruining the aesthetics of the equipment. Peter Henry hp-hewey!pdh
smh@sri-unix (10/27/82)
#R:ihldt:-106300:sri-unix:7300004:000:293 sri-unix!smh Oct 26 19:23:00 1982 Try immersion in water for such nasty things! I am told such a jacket of water is quite effective in reducing RFI. Better yet try immersion of the offending engineer who would allow such equipment to come into existence. Scott Hinnrichs ucbvax!menlo-70!sri-unix!crvax!smh smh at SRI-KL
padpowell (11/09/82)
Just a warning to all of you TVI suppressor installers.
Please! Put the line filter as close as possible to the terminal.
I have found that line cords make great tranmission antennas!
Patrick ("Last time I ever buy a bargin terminal!") Powell