Funnily my father started as sparks on ships. way back in the middle of the last century, and has tales of measuring the 'meter -amp' product of an antenna to confirm power going out for some inspection or other.

On MF  and the longer HF bands everything is electrically short so really it needs a lot of volts to get a decent current into any open circuit structure,  almost regardless of shape so yes if you were under an open line, you may well have exceeded the modern  H and S limits - did you ever feel particularly hot? Ankles in particular are a 'pinch point' for whole body currents, so aches there tend to be an early warning of high exposure.


There is a test cell for calibrating E field meters that is essentially an open line transmission line of known dimensions in a metal box (here is an example) I suspect your radio room would have accidentally made  a similar structure. Dividing line volts by the floor to ceiling distance in metres  would be a good order of magnitude estimate for the field  experienced sitting under the line.

M.

Funnily my father started as sparks on ships. way back in the middle of the last century, and has tales of measuring the 'meter -amp' product of an antenna to confirm power going out for some inspection or other.

On MF  and the longer HF bands everything is electrically short so really it needs a lot of volts to get a decent current into any open circuit structure,  almost regardless of shape so yes if you were under an open line, you may well have exceeded the modern  H and S limits - did you ever feel particularly hot? Ankles in particular are a 'pinch point' for whole body currents, so aches there tend to be an early warning of high exposure.


There is a test cell for calibrating E field meters that is essentially an open line transmission line of known dimensions in a metal box (here is an example) I suspect your radio room would have accidentally made  a similar structure. Dividing line volts by the floor to ceiling distance in metres  would be a good order of magnitude estimate for the field  experienced sitting under the line.

M.