TB 11-5820-1148-10
5.17 LIGHTNING ARRESTOR
Install the lightning arrestor.
Connect the 50-foot coaxial cable to the top of the lightning arrestor, and the 100-foot coaxial cable is
connected to the radio.
Tape the 50-foot coaxial cable to the bottom of the mast. Also tape the coaxial cable connections at
the lightning arrestor to waterproof them.
Prepare the ground rod by screwing the section with a point into the driving cap. Hammer the rod into
the ground until the bottom of the driving cap is 1-2 inches from the ground. Unscrew the cap from the
ground rod and replace it with the coupler. Screw the other ground rod into the top of the coupler and
the driving cap onto the top of the second ground rod section. Continue driving the ground rods into
the ground until the bottom of the driving cap is 6 - 8 inches from the ground. Remove the driving cap
from the ground rod and replace it with the lightning arrestor assembly. Screw it fully onto the ground
rod.
WARNING
Never use the lightning arrestor as a driving cap for the
ground rod. This will damage the lightning arrestor and
present an electrocution hazard to personnel.
Attach the coaxial cable coming down from the balun to the top of the lightning arrestor and tape the
connection to prevent the entry of water. Also tape the coaxial cable to the base of the mast at a level
about 3 feet above the ground. The transmitter side of the radio is connected to the bottom side of the
lightning arrestor assembly and the connection is taped to waterproof the connection.
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