WJ Communications SX1115 UNII Radio User Manual Revised antenna installation instruction

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Document ID	175877
Application ID	xx2777Vwi6pE87X0csPA0g==
Document Description	Revised antenna installation instruction
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Microsoft Word - pdf
Filesize	2.29kB (28673 bits)
Date Submitted	2001-10-24 00:00:00
Date Available	2001-10-24 00:00:00
Creation Date	2001-10-24 14:41:24
Producing Software	Acrobat Distiller 4.0 for Windows
Document Lastmod	2001-10-24 14:41:26
Document Title	Revised antenna installation instruction

Antenna Installation Instructions: FCC RF Exposure Limits
The WJ SX1115 U-NII transceiver, used in conjunction with 18 - 40
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 U-NII transceivers 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/cm , 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 Gain
10 dBi
12 dBi
14 dBi* corner reflect
18.5 dBi* flat panel
20 dBi
22 dBi* 1ft dish
Power 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
40 dBi 8ft dish
26.8 dBm
24.8 dBm
22.8 dBm
20.8 dBm
18.8 dBm
16.8 dBm
7.8 dBm
97.7
97.7
97.7
97.7
97.7
97.7
150
max EIRP, 15.407a3
max EIRP, 15.407a3
max EIRP, 15.407a3
max EIRP, 15.407a3
max EIRP, 15.407a3
max EIRP, 15.407a3
TCB exclusion
*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                     : 2001:10:24 14:41:24
Producer                        : Acrobat Distiller 4.0 for Windows
Modify Date                     : 2001:10:24 14:41:26-04:00
Page Count                      : 2

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