### Index ###

!! Other resources

Additional Material can be found linked from SpecificCases

!! Lightning

When installing an Omni antenna on the rooftop - remember it can be a target for any local lightning activity, a direct strike or energy from a local strike in the area can be absorbed into the omni,cables and mast. 

ENSURE this mast is EARTHED at all times, A cable from the bottom of the metal mast heading down to an earth point such as a rod driven into the ground makes a good lightning protection system. Lightning follows a direct path to earth in most cases, no sharp bends in the earthing cable.

Fit a surge arrestor in line with the cable to protect your Access Point equipment. Remember to earth this surge arrestor as well to your earth system.(Not your power point earth!)

More information at (http://www.techno.net.au/wireless/earthing/ Node ABJ's setup)
[NodeABJ Ernie]
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