and they give free samples ;-))

"Great. Now does anyone know of where to get equipment to test how effective it is? " I'd guess that virtually any hardware lab that has to test its equipment to make sure it meets FCC criteria for minimal emissions, would have a test lab onsite. Such a test lab normally consists of the following : - a very wide frequency range analyzer ( HP makes these ) - a set of antennas by which to sample the EMF field(s) - a platform adjacent to the antenna mount, upon which such equipment as is being tested, is rotated, to allow the antenna to sample the entire 360- -degree field at incremented altitudes and var- -iable angles in incidence. Those test labs I've been acquainted with are usually found at a distance from production facilities, usually small outbuildings in fields out back, insulated by distance from the EMF of the surrounding buildings. I can see how this paper might make it possible to move the lab back indoors ... To answer your question specifically, I'd check a HP electronic test products catalog, with an emphasis on signal/frequency/harmonic analyzers. -- richard ===== -- richard childers rchilder@us.oracle.com 1 415 506 2411 oracle data center -- unix systems & network administration "If Life is a drama, then, surely, the hardest parts go to the most skillful."