NETGEAR Stereo System ANT24O5 User Manual

5 dBi Omni-directional Antenna  
ANT24O5  
Installation Guide  
 
Introduction  
This section introduces the package contents of the NETGEAR 5 dBi Omni-directional  
Antenna ANT24O5 and related components.  
NOTE: To obtain optimal results in extending wireless range with antenna installations, it is  
recommended that a qualified professional installer service is consulted for site survey and  
proper installation.  
To comply with FCC rules the ANT24O5 antenna should only be used with devices that  
have been FCC approved for use with the ANT24O5. Please check the NETGEAR web site  
at http://www.NETGEAR.com/go/antennas_fcc for an updated list of FCC approved devices.  
For EU, use of any antenna requires careful planning and extra consideration to comply with  
EU emissions and health standards and regulations. Antenna installation must comply with the  
maximum level authorized by each country, see page 9.  
Package Contents  
Installation Guide, Warranty card and  
5 dBi Antenna  
Support information card  
ANT24O5  
The package should contain:  
NETGEAR 5 dBi Omni-directional Antenna ANT24O5 including a 10 cm RG316 cable with  
a reverse SMA connector for IEEE 802.11b or 802.11g wireless devices  
Ceiling/Wall mount bracket hardware  
Warranty card  
Support information card  
1
 
ANT24O5  
Placement and Other Important Considerations  
In order to maximize coverage, antennas must be placed in a good spot. A lot of improvement  
can be achieved by optimizing the line of sight between antennas. Try to minimize the  
partitions and partial obstructions if possible. For instance, place the antenna on a wall above  
the cubicles (cubicles generally include a metal foil). Ideal placement is against a wall, 2m high,  
or on the ceiling facing the area to cover.  
Cubicles  
1.5m high  
ANT24O5  
Cubicles  
1.5m high  
Approximate  
coverage area  
Figure 2: Optimal antenna placement on an interior wall  
Figures 1 and 2 show where one could place the ANT24O5 for best coverage in an office. In  
Figure 1, the ANT24O5 is placed on the ceiling in the middle of the area to cover. In Figure 2,  
the ANT24O5 is placed in an elevated location on an interior wall, above and facing the  
indoor coverage. Notice that the area close to the antenna, behind or beside it, will still be  
covered because the dynamic range of the WLAN transmitter/receiver and antenna is  
approximately 100dB. So, even with 20dB to 40dB of attenuation, the signal strength is still  
strong and communication is maintained.  
Approximate  
coverage area  
Figure 1: Optimal antenna placement on the ceiling  
The longer the antenna cable, the higher the attenuation, or signal loss. This will decrease the  
range and performance. The best performance is achieved with a short cable between the  
antenna and the wireless device. The shortest FCC approved antenna cable is the NETGEAR  
1.5 M (ACC-10314-01) cable. For optimal performance, use a low-loss NETGEAR antenna  
cable up to 10 meters long.  
If the wireless access point, router or gateway is in a IT room, place the antenna outside of the  
room close to the ceiling against a wall. Use a NETGEAR antenna cable of up to 10 meters in  
length to connect the antenna to the wireless access point.  
2
3
 
Wireless device with two antennas, but replacing only the  
primary antenna  
Installing the Antenna  
The instructions below cover these scenarios:  
Wireless device with a single antenna  
5 dBi Antenna  
ANT24O5  
Wireless device with two antennas, but replacing only the primary antenna  
Wireless device with two antennas, but replacing both the primary and secondary antennas  
Antenna executes  
both transmit and  
receive function.  
Turn off your wireless unit, locate the scenario below that fits your equipment, and connect  
your wireless accessories according to the illustration. After attaching your new antenna,  
reconnect your wireless device to the network and turn it on.  
Wireless device with a single antenna  
NETGEAR antenna cable  
Wireless Access Point  
ETHERNET  
5-12V DC  
Antenna  
Connection  
RESET  
Antenna executes  
5 dBi Antenna  
ANT24O5  
both transmit and  
receive function.  
Primary  
Secondary  
Wireless device with two antennas, but replacing both the  
primary and secondary antennas  
5 dBi Antenna  
ANT24O5  
5 dBi Antenna  
ANT24O5  
NETGEAR antenna cable  
ETHERNET  
5-12V DC  
RESET  
Antenna  
Antenna executes  
both transmit and  
receive function.  
Antenna executes  
receives function  
only.  
Connection  
Wireless Access Point  
NETGEAR antenna cable  
Wireless Access Point  
ETHERNET  
5-12V DC  
RESET  
Antenna  
Connection  
Primary  
Secondary  
4
5
 
The ANT24O5 built-in cable specifications are listed here.  
Specifications  
ANT24O5, 5 dBi Omni-directional  
Antenna with a 10cm RG318 cable and  
reverse female jack SMA connector  
Description  
10cm RG318  
Description  
RG318  
Type  
10 cm = 3.9 in  
2.5 mm  
Length  
Frequency Range  
Type  
2450 ± 50MHz  
External Diameter  
Impedance  
SWR  
Patch  
50 ± 5 Ohms  
Impedance  
50 ± 5 Ohms  
1.5 maximum  
Maximum Input Power  
SWR  
20W (without N/SMA adapter)  
2.0 maximum  
138 dB/100 m = 42 dB/100 ft @ 2.4 GHz  
13 mm = 0.5 in  
Loss  
Minimum bend radius  
-10 dB  
Return Loss  
Gain  
5 dBi  
Directional  
Vertical  
Radiation  
Horizontal Plane Radiation Pattern (X-Y, Azimuth)  
Polarization  
90  
120  
60  
HORZ 120 ° VERT 110 °  
SMA Female reverse  
PC+ABS  
Beam Degree  
Connector Type  
Material  
150  
30  
WHITE  
Color  
180  
0
-30  
STEEL  
Mounting Base  
Operation Temperature  
Storage Temperature  
Device Size (l x w x h)  
Weight  
Top View  
-20 to 65° C (-4 to 149° F)  
-30 to 80° C (-22 to 176° F)  
99.2 x 53.9 x 27.5 mm/3.91 x 21.2 x 1.08 in  
55 g/.12 lb.  
330  
210  
240  
300  
270  
2 years  
Warranty  
6
7
 
Statement of Conditions  
Vertical Plane Radiation Pattern (X-Z, Elevation)  
In the interest of improving internal design, operational function, and/or reliability, NETGEAR reserves the right to  
make changes to the products described in this document without notice. NETGEAR does not assume any liability  
that may occur due to the use or application of the product(s) or circuit layout(s) described herein.  
90  
120  
60  
Federal Communications Commission (FCC) Compliance Notice: Radio Frequency Notice  
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:  
150  
30  
1. This device may not cause harmful interference.  
2. This device must accept any interference received, including interference that may cause undesired operation.  
Front  
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to  
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a  
residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and  
used in accordance with the instructions, may cause harmful interference to radio communications. However, there is  
no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful  
interference to radio or television reception, which can be determined by turning the equipment off and on, the user is  
encouraged to try to correct the interference by one or more of the following measures: (1) Reorient or relocate the  
receiving antenna, (2) Increase the separation between the equipment and receiver, (3) Connect the equipment into an  
outlet on a circuit different from that to which the receiver is connected, (4) Consult the dealer or an experienced  
180  
0
-30  
Side View  
330  
210  
240  
300  
270  
Federal Communications Commission (FCC) Radiation Exposure Statement  
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. In order to  
avoid the possibility of exceeding the FCC radio frequency exposure limits, human proximity to the antenna shall not  
be less than 20 cm (8 inches) during normal operation. This device should not be co-located with other transmitters.  
For EU, use of any antenna requires careful planning and extra consideration to comply with EU emissions and health  
standards and regulations. It is recommended that a qualified professional installer service is consulted for site  
survey and proper installation. Antenna installation must comply with the maximum level authorized by each country.  
Radiation Pattern (Y-Z, Elevation)  
90  
120  
60  
150  
30  
Front  
180  
0
-30  
Bottom View  
330  
210  
240  
300  
270  
8
 
Technical Support  
PLEASE REFER TO THE SUPPORT INFORMATION CARD THAT SHIPPED WITH  
YOUR PRODUCT.  
By registering your product at www.NETGEAR.com/register, we can provide you with faster  
expert technical support and timely notices of product and software upgrades.  
NETGEAR, INC.  
Support Information  
Phone: 1-888-NETGEAR (For US & Canada only) - 24x7 phone support  
See Support Information card for other countries.  
E-mail: support@NETGEAR.com (24x7 online support)  
www.NETGEAR.com  
©2003 NETGEAR, Inc. NETGEAR, the Netgear logo, The Gear Guy, Auto Uplink and  
Everybody's Connecting are trademarks or registered trademarks of Netgear, Inc. in the United  
States and/or other countries. Microsoft and Windows are registered trademarks of Microsoft  
Corporation in the United States and/or other countries. Other brand and product names are  
trademarks or registered trademarks of their respective holders. Information is subject to change  
without notice. All rights reserved.  
*M-10081-02*  
July 2003  
M - 1 0 0 8 1 - 0 2  
 

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