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IMPORTANT SAFETY INSTRUCTIONS 
(Continued)
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16. Power Lines 
An outside antenna system should not be located
in the vicinity of overhead power lines or other
electric light or power circuits, or where it can
fall into such power lines or circuits. When
installing an outside antenna system, extreme
care should be taken to keep from touching such
power lines or circuits as contact with them
might be fatal.
17. Overloading 
Do not overload wall outlets and extension cords
as this can result in a risk of fire or electric
shock.
18. Object and Liquid Entry
Never push objects of any kind into this product
through openings as they may touch dangerous
voltage points or short-out parts that could result
in a fire or electric shock. Never spill liquid of
any kind on the product.
19. Servicing 
Do not attempt to service this product yourself as
opening or removing covers may expose you to
dangerous voltage or other hazards. Refer all ser-
vicing to qualified service personnel.
20. Damage Requiring Service
Unplug this product from the wall outlet and
refer servicing to qualified service personnel
under the following conditions:
a. If the power-supply cord or plug is damaged.
b. If liquid has been spilled, or objects have fall-
en into the product.
c. If the product has been exposed to rain or
water.
d. If the product does not operate normally by
following the operating instructions. Adjust
only those controls that are covered by the
operating instructions as an improper adjust-
ment of other controls may result in damage
and will often require extensive work by a
qualified technician to restore the product to
its normal operation.
e. If the product has been dropped or the cabinet
has been damaged.
f. If the product exhibits a distinct change in per-
formance.
21. Replacement Parts
When replacement parts are required, be sure the
service  technician has used replacement parts
specified by the manufacturer or have the same
characteristics as the original part. Unauthorized
substitutions may result in fire, electric shock, or
other hazards.
22. Safety Check 
Upon completion of any service or repairs to this
product, ask the service technician to perform
safety checks to determine that the product is in
proper operating condition.
23. Wall or Ceiling Mounting 
The product should be mounted to a wall or ceil-
ing only as recommended by the manufacturer.
24. Heat
The product should be situated away from heat
sources such as radiators, heat registers, stoves,
or other products (including amplifiers) that pro-
duce heat.
Antenna Lead in Wire
Antenna Discharge Unit
(NEC Section 810-20) 
Grounding Conductors
(NEC Section 810-21)
Ground Clamps
Power Service Grounding 
Electrode System 
(NEC Art 250, Part H)
Ground
Clamp
Electric Service
Equipment
NEC - NATIONAL ELECTRICAL CODE
EXAMPLE OF ANTENNA GROUNDING PER
NATIONAL ELECTRICAL CODE, ANSI/NFPA 70