Measurement protocols
Reproducible measurement procedures: goal, equipment, ordered steps, pitfalls, and the limits to interpret results against.
The building-biology method for grading a sleeping area's AC electric field: a high-impedance millivoltmeter, a hand electrode, and a documented ground reference.
A source-finding walkthrough plus a 24-hour log, because power-frequency magnetic fields track electrical load and a spot reading answers almost nothing.
How to establish what is actually on a mast — height, azimuth, licensee — from the FCC Antenna Structure Registration and licence databases before estimating exposure.
How to get the tested SAR for a specific handset from the FCC equipment authorization database using the device's FCC ID, instead of relying on third-party lists.
How to measure radiofrequency exposure in a room so the result is reproducible: peak and average, at body positions, with the dominant direction identified.
How to prove a shielding measure worked: identical instrument, position and source conditions before and after, reported in dB as well as in absolute units.
The combined survey building-biology practice applies to a bedroom: RF power density, AC magnetic field, AC electric field and body voltage, each graded against its own band.
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