> The question for Amateurs is a good one though -- lots of people run > lots of power and don't ever do even a cursory bit of math on their > particular station (let alone their repeaters) to see if > they're in any > danger.
OET 65 is "the RFR bible" as far as the FCC is concerned. Supplement B is specific to amateur radio. http://www.fcc.gov/oet/info/documents/bulletins/ At a transmitter site, even one with controlled access, simply posting a warning sign is almost never "good enough" to absolve the licensee(s) of responsibility. Signs are often a part of an RFR safety program, but alone they don't mitigate the danger. If you have reason to believe there are exposure levels above the prescribed limits, there needs to be procedures and policies in place to properly protect workers. As a sidebar, we had a situation here locally where microwave dishes and 900 MHz panel antennas were aimed out glass windows from an upper floor of a high-rise building. The antennas were mounted flush to the inside of the glass. Behind the antennas (i.e. inside the building) RFR levels were acceptable. However, outside the building, in front of the antennas, window washers were being over-exposed, and the FCC took issue with it. --- Jeff WN3A
