Cisco 4G-ANTM-OM-CM, Manual

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Cisco 4G LTEA, 4G LTE, and 3G Omnidirectional Dipole Antenna (LTE-ANTM-SMA-D)
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The density of the materials used in a building’s construction determines the number of walls the signal must pass through
while still maintaining adequate coverage. Consider the following before choosing the location for installing your antenna:
— Paper and vinyl walls have very little effect on signal penetration.
— Solid and precast concrete walls limit signal penetration to one or two walls without degradation of coverage.
— Concrete and wood block walls limit signal penetration to three or four walls.
— A signal can penetrate five or six walls constructed of drywall or wood.
— A thick metal wall or wire-mesh stucco wall causes signals to reflect back and causes poor penetration.

Avoid mounting the antenna next to a column or vertical support that could create a shadow zone and reduce the coverage
area.

Keep the antenna away from reflective metal objects such as heating and air-conditioning ducts, large ceiling trusses,
building superstructures, and major power cabling runs. If necessary, use an extension cable to relocate the antenna away
from these obstructions.
Related Documentation

For information about antennas and modules, see:
http://www.cisco.com/go/cg-modules
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For information about omnidirectional and directional antennas, see:
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a00807f34d3.shtml
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