"dnoyeB" wrote in message
news
wrote:
How would one make any part of the tower higher than the antenna? When
a rotor is used, which I need to use due to the distance involved,
there is no feasable way of having any rod stick higher than the
antenna. Also, if grounding the tower makes it more attractive to
lightning, why are tv antennas on roof tripods usually grounded? Thanks


Like I said because if lightning does strike you want it to seek ground by
following a path OUTSIDE of your house. Without grounding the antenna
properly through a path outside of yoru house, if lightning does strike
it, it will ground itself through a path within your house which may
significantly more hazardous to your health.


Use a dedicated grounding rod. do not connect to your safety ground (third
prong on the receptacles). You can connect to the house ground only at the
grounding rod, not anywhere before.


grounding the tower can also make it less likely to endure a direct blast
if it is able to dissipate enough energy before it can build up. A
lightning rods true purpose is to leak energy to prevent the massive burst
of energy that comes with a direct strike.


True purpose is to provide a lower resistance path to ground than would
otherwise be found


As for making the tower higher than the antenna, you gotta do what you
gotta do...

--

The lightning rod is unnessary, simply ground the antenna via a spark gap
and the shield of the antenna cable.


Thank you,



"Then said I, Wisdom [is] better than strength: nevertheless the poor
man's wisdom [is] despised, and his words are not heard." Ecclesiastes
9:16