"Gary DeWitt" wrote in message
om...
| I have a 54" RCA rear projection. I had a new hardwood floor installed
| with an electric heating grid underneath. The grid consists of heavy
| screen mesh, similar to window screen but 2-3 times heavier wire, laid
| in one continuous circuit back and forth across the room. There is a
| high voltage, low amperage current running through it. Here's the
| problem - when the heater is on, the guns in my tv misalign, looks
| like 3-d image viewed without the correct glasses. Soon as I turn off
| the heat, the tv returns to normal. How can I shield the tv from the
| floor induced field? Faraday cage? (I don't really want to view thru
| wire mesh!) Grounded sheet of steel under the set? Raise the set a
| foot or two off the floor? Both? Any suggestions, particularly from
| those who have solved this problem or engineers, would be greatly
| appreciated!

Interesting!

1. The higher off the floor the TV is, the lesser the effect.

2. Alternate layers of sheet steel and aluminium under the TV, insulated
from each other by paper, might diminish the effect.

3. Use a separate heater when you want to watch TV.

N