I know that inadvertent contact with RF energy can cause burns... Maybe we need to send the FCC their own document regarding these hazards http://www.fcc.gov/Bureaus/Engineering_Technology/Documents/bulletins/oet56/ oet56e4.pdf
I'm not in the trade, so I have no real idea of how to compute exposure levels to RF, other than for my ham station. However, I found a reference at the Underwriters Laboratories website: http://www.ul.com/telecom/tcb/exposure.htm All of the calculations done by UL, it seems, are measured using mW/cm^2 (that's milli-watts per centimeter squared) of exposure area. Here we're talking levels 1000's of times that level. Again, its one thing when you're trying to activate an RFID tag on a box inside of a truck trailer, and something totally different when you're doing so *inside* a human being. 25W seems ridiculously excessive, especially when there is the chance of contact with RF... the proximity of such a level of RF just seems outrageous. I then wonder if maybe the FCC will require all surgical patients to display RF Exposure warning signs, such as: http://www.radhaz.com/sc_images/products/bigwarn.jpg Makes me wonder whatever happened to common sense... Mark - N9WYS -----Original Message----- From: [email protected] On Behalf Of Mike Morris WA6ILQ While the hams only use the top and bottom megahertz of the 900mhz band, and we are secondary there, I think we all might be interested in this waiver request of Part 15 rules for the 902-928 band. <http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-07-4606A1.pdf> What's wrong with a pencil and paper tally system that has worked since my great grandfather did appendectomies, treated gunshot wounds, slipped axe wounds and other surgery on logging camp mess hall tables over 90 years ago ? He was a physician that took care of 5 logging camps and the surrounding towns in the area around the California-Oregon border from the coast to about 15 miles inland. All he had in the way of instruments and drugs was what he could carry in his saddlebags and maybe a pack mule if it was going to be an extended trip. He drafted loggers or other locals as operating help. And he never left a sponge or an instrument in a patient. This sound like an un-necessary technical solution for non-existent problem. We have about 5 weeks to file our comments with the FCC on this one. Mike WA6ILQ
