Cisco Cisco 1900 2900 3900 Series 4-Port Gigabit Ethernet HS-WIC with PoE Installation Guide

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Cisco 4G Indoor Ceiling-Mount Omnidirectional Antenna (4G-ANTM-OM-CM)
OL-24267-01
  Overview
Technical Specifications
The following table lists the technical specifications for the 4G-ANTM-OM-CM antenna.
Antenna type
Low profile, ceiling-mount omnidirectional
Operating frequency range
698–806 MHz
824–894 MHz
925 –960 MHz
1575 MHz
1710–1885 MHz
1920–1980 MHz
2110–2170 MHz
2500–2690 MHz
Nominal Impedance
50 Ohms
Voltage Standing Wave Ratio (VSWR)
2.0:1
3.01:1 or less for GPS
Gain
700–960 MHz (1 and 1.5 dBi)
1700–2200 MHz (1.7 and 3.2 dBi)
2500–2700 MHz (3 and 4 dBi)
Radiation Pattern:
Vertical plane (-3 dB beam-width)
700–960 MHz (80 and 95 degrees)
1700 MHz (80 and 90 degrees)
1800 MHz (75 and 95 degrees)
1900 MHz (65 and 90 degrees)
2100 MHz (50 and 65 degrees)
2500–2700 MHz (50 and 65 degrees)
Azimuth plane ripple
3.5 dB over all frequencies
Efficiency
0.7–0.85 over all frequencies
Connector type
TNC-Male
Polarization
Linear (vertical)
Power withstanding
3 W
Weight
0.7 lb (0.34 kg)
Color
White
Flammability
UL94 V0
Environment
Indoor
Mounting
Nut, flat washer, curved spring washer, #6 x 1-1/4” mounting 
screws and anchors to be used for mounting to a hard ceiling, 
self adhesive screw covers.
Operating temperature
–22° to 158°F (–30° to 70°C)
Storage temperature
–40° to 185°F (–40° to 85°C)