WJ Communications SX1115 User Manual Includes multiple antenna location instructions to installer

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Document ID	73537
Application ID	G/Vt3BbQfdMxu63iShog9w==
Document Description	Includes multiple antenna location instructions to installer
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	0.9kB (11191 bits)
Date Submitted	1999-12-03 00:00:00
Date Available	1999-12-20 00:00:00
Creation Date	2001-05-10 07:32:15
Producing Software	Acrobat Distiller 4.0 for Windows
Document Lastmod	2001-05-10 07:32:16
Document Title	Includes multiple antenna location instructions to installer

Page 7 of the WJ Beta Draft 2 instruction manual will be modified as follows:
BETA DRAFT2 - WJ CONFIDENTIAL
Antenna Installation Instructions: FCC RF Exposure Limits
The WJ SX11xx series of UNII transceivers, used in conjunction with 18 - 34 dBi gain antennas, are to be
employed in point -to- point applications only. Antennas used for these transmitters shall be professionally
installed on permanent structures for outdoor operations. The installer is responsible for ensuring that the
systems using high gain directional antennas are used exclusively for fixed, point-to-point operations.
The installer shall mount all transmit antennas so as to comply with the limits for human exposure to radio
frequency (RF) fields per paragraph 1.1307 of the Federal Communications Commission (FCC)
Regulations . The FCC requirements incorporate limits for Maximum Permissible Exposure (MPE) in
terms of electric field strength, magnetic field strength, and power density.
The WJ UNII transmitters are intended to be installed in restricted access areas, where access can only be
gained by service personnel through the use of a special tool, lock and key, or other means of security.
Regardless, antenna installations shall be engineered so that MPE is limited to 1 mW/cm2 , the more
stringent limit for "uncontrolled environments". Table 2 below specifies the minimum distance that must
be maintained between the antenna and any areas where persons may have access, including rooftop
walkways, sidewalks, as well as through windows and other RF-transparent areas behind which persons
may be located.
Table 2 Antenna Radiation Hazard
Antenna
10 dBi
12 dBi
14 dBi* corner reflector
18.5 dBi* flat panel
20 dBi
22 dBi* 1ft dish
P max per Rules
27.8 dBm
27.8 dBm
27.8 dBm
27.8 dBm
27.8 dBm
27.8 dBm
MPE distance, cm
21.9
27.5
34.7
58.2
69.2
87.1
Regulatory Limit
max power,15.407a3
max power,15.407a3
max power,15.407a3
max power, 15.407a3
max power,15.407a3
max power, 15.407a3
24 dBi
26 dBi* flat panel
28 dBi
30 dBi
32 dBi
34 dBi* 4ft dish
26.8 dBm
24.8 dBm
22.8 dBm
20.8 dBm
18.8 dBm
16.8 dBm
97.7
97.7
97.7
97.7
97.7
97.7
max EIRP, 15.407a3
max EIRP, 15.407a3
max EIRP, 15.407a3
max EIRP, 15.407a3
max EIRP, 15.407a3
max EIRP, 15.407a3
*Antennas tested and qualified for FCC certification August - October 1999. Other antenna types may be used,
provided applicable requirements in FCC Rule parts 2 and 15 are met.
Antenna manufacturer-supplied installation instructions for specific models generally contain information
regarding antenna mounting, aiming, lightning protection, and other relevant factors. In addition to
meeting these requirements, the antenna system installer is responsible for installing antennas so that they
comply with FCC RF exposure requirements. The FCC RF exposure requirements at a given location are
based on the sum total of contributions from all radio sources. For WJ system antennas placed in close
proximity to other transmitters (e.g., on a shared rooftop or tower installation), installers shall take steps to
insure that MPE guidelines in 1.1307 of the Rules continue to be met with the inclusion of the contribution
from the new antenna. Further information and guidance can be found in FCC Bulletin OET 65, available
for download at .http://www.fcc.gov/oet/rfsafety/

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Create Date                     : 2001:05:10 07:32:15
Producer                        : Acrobat Distiller 4.0 for Windows
Modify Date                     : 2001:05:10 07:32:16-04:00
Page Count                      : 1

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