[BC] Impedance changes - was lighting removal

[JYRussell@academicplanet.com]

Hmmmm....  I know that RF climbs all over a person really well, but glass?
I'd have to guess it was the frame for the cover, not the glass, that did
weird stuff...
If there was indeed a cage over the thing.  If it was just glass, with maybe
a hold down clamp, i'd be stumped about the 'Why' par tof it.
Jason

>  Well, I can say that some decades ago, a climber left a beacon
>  open.
>  1150, 220 foot stick, high power, but not the reference tower,
>  in a six tower array.
>  About a 6 degree shift in parameters, using loops, not toroids.
>  Guess who climbed up and closed it ?
>  All returned to normal.
>
>  Following that, I once climbed the same tower, and poked my head
>  and an arm above the top of the lightning rod, while a friend watched
>  the parameters.
>  Didn't need the friend. The TX automation threw out-of-tolerance
>  alarms for both ratio and phase !
>
>  Remember, the top of the stick is the highest voltage point, therefore
>  the most sensitive to changes, even though current ( and therefore
>  power ) is zero at that point.