On Mon, 08 Nov 2010 14:29:13 -0500, wrote:

The emi from the flourescent bulbs was not just going back the power
lines. The radiation from the bulbs themselves was significant, and
anything short of a full faraday cage wasn't going to catch it all.
The copper screen was not sufficient (either not full enough coverage,
or not grounded, etc)
I'll go along with that - I have problems with a wireless mouse 24"
below a single 48" tube fixture, I need to go to a corded mouse.
Gerry :-)}
London, Canada