Table Of Contents
Cisco Multiband In-Building Omnidirectional Ceiling-Mount Antenna (3G-ANTM1916-CM)
This document outlines the specifications and describes the Cisco 3G-ANTM1916-CM multiband omnidirectional ceiling-mount antenna and contains the following sections:
Cisco 90-Day Limited Hardware Warranty Terms
There are special terms applicable to your hardware warranty and various services that you can use during the warranty period. Your formal Warranty Statement, including the warranties and license agreements applicable to Cisco software, is available on Cisco.com. Follow these steps to access and download the Cisco Information Packet and your warranty and license agreements from Cisco.com.
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Duration of Hardware Warranty
Ninety (90) days.
Replacement, Repair, or Refund Policy for Hardware
Cisco or its service center will use commercially reasonable efforts to ship a replacement part within ten (10) working days after receipt of a Return Materials Authorization (RMA) request. Actual delivery times can vary, depending on the customer location.
Cisco reserves the right to refund the purchase price as its exclusive warranty remedy.
To Receive a Return Materials Authorization (RMA) Number
Contact the company from whom you purchased the product. If you purchased the product directly from Cisco, contact your Cisco Sales and Service Representative.
Complete the information below, and keep it for reference:
Company product purchased from
Company telephone number
Product model number
Product serial number
Maintenance contract number
The Cisco 3G-ANTM1916-CM antenna operates in the 806- to 960-MHZ and 1710- to 2170-MHz frequency bands, and is designed for use with 3G high speed WAN interface cards (HWICs). The Cisco 3G-ANTM1916-CM antenna connects to the Cisco 3G wireless WAN HWICs using a reverse-polarity threaded Neill-Concelman (RP-TNC) connector.
Figure 1 shows the Cisco 3G-ANTM1916-CM antenna.
Figure 1 Cisco 3G-ANTM1916-CM Antenna
The following table lists the technical specifications for the Cisco 3G-ANTM1916-CM antenna.
Omnidirectional ceiling mount
Operating frequency ranges
806 to 960 MHz and 1,710 to 2,170 MHz
Maximum VSWR1 bandwidth
•<1.8:1 (806 - 960 MHz)
•<1.6:1 (1710 - 2170 MHz)
•1.5 dBi (806 - 960 MHz)
•2.5 dBi (1710 - 2170 MHz)
Azimuth plane beamwidth
7.09 in. x 2.44 in. (18 cm. x 6.20 cm.)
0.62 lb (0.31 kg)
1 VSWR = voltage standing-wave ratio
Figure 2 shows the elevation cut (Advanced Mobile Phone Systems [AMPS]) for the Cisco 3G-ANTM1916-CM antenna.
Figure 2 Elevation Cut (AMPS)
Figure 3 shows the azimuth cut (AMPS) for the Cisco 3G-ANTM1916-CM antenna.
Figure 3 Azimuth Cut (AMPS)
Figure 4 shows the elevation cut (Personal Communications Service [PCS]) for the Cisco 3G-ANTM1916-CM antenna.
Figure 4 Elevation Cut (PCS)
Figure 5 shows the azimuth cut (PCS) for the Cisco 3G-ANTM1916-CM antenna.
Figure 5 Azimuth Cut (PCS)
The Cisco 3G-ANTM1916-CM antenna is a remote antenna solution for the Cisco 3G wireless WAN HWICs and should be connected using the 20-ft or 50-ft ultra-low-loss (ULL) cables recommended for this product.
This antenna is designed to be mounted indoors on a suspended ceiling track having either flush or recessed mounted ceiling tiles.
In addition to the antenna orientation, the installation location of the Cisco 3G wireless HWIC plays a significant role in determining overall network performance with respect to all the wireless clients. Clients at the farthest coverage points might have 10 to 50 percent of the bandwidth available to clients close to the antenna. Wireless network coverage in one area or location might need to be lowered to improve the performance for clients in other areas or locations.
Because antennas both transmit and receive radio signals, their performance can be adversely affected by the surrounding environment, including physical obstructions or radio frequency (RF) interference.
Follow these guidelines to ensure the best possible performance:
•Mount the antenna to use its propagation characteristics. For best results, mount the antenna horizontally at ceiling level near the center of the coverage area.
Note The antenna must be mounted horizontally in order to maximize its omnidirectional propagation characteristics. Mounting it vertically may noticeably decrease the antenna range and overall performance.
•Wherever possible, mount the 3G wireless HWIC and antenna where the wireless devices are within sight and without physical obstructions. Barriers along the line of sight between client and HWIC will degrade the wireless radio signals. The Cisco 3G wireless HWICs and antennas can be installed above floor level in office environments or near the ceiling for better performance, because most obstructions tend to be near floor level.
•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.
Caution Install the HWIC and any antennas away from appliances that share the same frequency bands. Microwave ovens, cordless telephones, and security monitors can temporarily interfere with wireless performance.
Caution We recommend avoiding installing wireless antennas in or near rack-mounted equipment that include networking equipment and computer servers whose radiated noise emissions can severely degrade radio performance.
•To extend the coaxial cable included with your antenna, we recomend an ultra-low-loss coaxial cable for installation flexibility without a significant loss in range. The following table lists insertion loss information about ULL extension coaxial cables available from Cisco.
Cisco Product Number Cable Length Frequency Range Insertion Loss
20 ft (6 m)
-1.50 dB, maximum
50 ft (15 m)
-3.50 dB, maximum
Figure 6 shows the ULL cable recommended for Cisco 3G Wireless WAN HWICs.
Figure 6 Ultra-Low-Loss Cable Recommended for Cisco 3G Wireless WAN HWICs
Follow these safety instructions when installing your antenna.
Warning In order to comply with FCC radio frequency (RF) exposure limits, antennas should be located at a minimum of 7.9 inches (20 cm) or more from the body of all persons. Statement 332
•Plan your installation procedure carefully and completely before you begin.
•If you are installing an antenna for the first time, for your own safety as well as that of others, seek professional assistance. Consult your dealer, who can explain which mounting method to use for the location in which you plan to install the antenna.
•Choose your installation site with both safety and performance in mind. Remember that electric power cables and telephone lines look alike. For your safety, assume that any line is an electric power line until determined otherwise.
•Call your local power company or building maintenance organization if you are unsure about cables close to your mounting location.
•When installing your antenna, do not use a metal ladder. Do dress properly: wear shoes with rubber soles and heels, rubber gloves, and a long-sleeved shirt or jacket.
•If an accident or emergency occurs with the power lines, call for qualified emergency help immediately.
Install the Cisco 3G-ANTM1916-CM antenna with the following hardware that is included in the package:
•Plastic inserts for drywall or other wall materials.
•White caps to cover exposed screw heads
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