Dave we're basically agreeing on everything and I'm confident that the experimenters properly checked for DC, however I know how the skeptical minds work and unless they put it clearly in writing (e.g. in the report) there will be some small lingering doubt.
To summarize: 1) Diode rectification tricks - provided the mains source is AC, this will be caught by the power meter. A sine wave has no net integral over time. 2) HF power injection - not possible, at the power levels required it would bleed everywhere and cause equipment malfunction or damage. 3) DC injection - foolish and dangerous, but seems to be the only possible way, with a big IF. (3) would still be foolish because the experimenters can very easily check for DC at any time, and they did (but it's not in the report, unfortunately). A 10-year old can check for DC. But it wasn't continuously checked, so cudeologists could say that they switched DC off while they had a multimeter hooked. My point is then that even (3) IS IMPOSSIBLE IF the power meter can sense DC voltages. That holds true even if the experimenters hadn't checked for DC, because it would require very high currents. -- Berke Durak
