RF analysis.pdf'ION -IONIZING ELECTROMAGNETIC EXPOSURE ARALTSIS
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SITE ADDRESS: 9121
Street
Edmonds, (' 98021
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0 851-1106
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The proposed AT&T project consists of a WCF (Wireless Communications Facility)
located at 9121 Main Street, Edmonds, WA 98020, Snohomish County tax parcel
00567400000800. The planned improvements include additional antennas on a 50'
AGL wooden utility pole with supporting BTS (Base Transmission System) radio
equipment located near the base of the utility pole at an on -air AT&T site.
Type of Service: GSM 850, GSM 1900, UMTS 850, UMTS 1900, LTE 700
Antennas: Kathrein 80010764 & 742264
Sectors: (2) (X = 115°, Z = 270° & 300°)
Maximum Power: GSM 850 — 216 w (53.36 dBm ERP)
GSM 1900 — 406 w (56.09 dBm ERP)
UMTS 850 — 512 w (57.1 dBm ERP)
UMTS 1900 — 909 w (59.59 dBm ERP)
LTE 700 — 809 w (59.08 dBm ERP)
Antenna Rad Center: 41' AGL (lowest)
CALCULATIONS
Calculations for RF power densities near ground level are based on the "Evaluating
Compliance with FCC Guidelines for Human Exposure to Radio Frequency
Electromagnetic Fields OET Bulletin 65" Edition 97-01, August 1997 issued by the
Federal Communications Commission Office of Engineering & Technology.
Section 2 of OT Bulletin 65 demonstrates that "for a truly worst-case prediction of
power density at or near the surface, such as at ground -level or on a rooftop, 100%
reflection of incoming radiation can be assumed, resulting in a potential doubling of
predicted field strength and a four -fold increase in (far field equivalent) power density".
Therefore the following equation is used:
S = EIRP/TrR2
Where S = power density (mW/cm2), EIRP = equivalent isotropically radiated power and
R = distance to the center of the radiation antenna (cm)
Attached as an exhibit are the MPE (Maximum Power Exposure) calculations using the
above referenced formula and the antenna manufacturer vertical pattern information
using a conservative 20 dB loss below main lobe. The calculations show that the
maximum MPE at ground level (6' above AGL) at the base of the utility pole and the
power density is 0.000538 MW/CM2 with power levels as provided by AT&T RIF Data
Sheet. This is 0.1099 %of the MPE limit for the general population/uncontrolled
exposure of 0.4893 MW/CM2 as referenced in Table I OET Bulletin 65 Appendix A for
the lowest frequency range.
The general popu lation/uncontrol led exposure near the utility pole, including persons al
ground level, surrounding properties, inside and on existing structures will have RIF
exposure much lower than the "worst case" scenario, which is a small fraction of the
MPE limit.
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SN63 Edmonds Ridge
WE Calculations
Effective lower height assumes a person 6 it tall.
tower
main beam
41 height (ft)
1.31E-02
height,
hypotenuse
lowest
0.013117
max power density in mW/cm
y
2.6808% percentage at standard
horiz. Dist., x
Note: 0.4893 mW/cm' is
100% of allowable standard for
lowest frequency
effective
radiation
lower
ERP ERP
Power at point x
center
height
minor lobe
dB below
horiz. dist.
hyptonuse
hypotenuse
hypotenuse
main lobe main lobe minor lobe
minor lobe
minor lobe
at ground level
(feet), y
(feet), y
angle
main lobe
x
length (feet)
length (km)
length (cm)
(watts) (dBm) ERP (dBm)
EIRP (dBm)
EIRP (mW)
mW/cmA2
GSM 850
41
35
90
20
0.000
35.000
0.011
1066.800
216 53.34 33.34
35.50
3551.84
9.93E-04
GSM 1900
41
35
90
20
0.000
35.000
0.011
1066.800
406 56.09 36.09
38.25
6676.15
1.87E-03
UMTS 850
41
35
90
20
0.000
35.000
0.011
1066.800
512 57.09 37.09
39.25
8419.18
2.35E-03
UMTS 1900
41
35
90
20
0.000
35.000
0.011
1066.800
909 59.59 39.59
41.75
14947.34
4.18E-03
LTE 700
41
35
90
20
0.000
35.000
0.011
1066.800
809 59.08 39.08
41.24
13302.97
3.72E-03
TOTAL 1.31E-02
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4
650 Dualband Directional Antenna
Kathrein's dual band antennas are ready for 3G applications,
covering all existing wireless bands as well as all spectrum
under consideration for future systems, AMPS, PCS and
3G/UMTS. These cross -polarized antennas offer diversity 824-960 MHz
operation in the same space as a conventional 800 MHz
antenna, and are mountable on our compact sector brackets. 4�
*Wide band operation.
® Exceptional intermodulation characteristics.
• Remote control ready.
® Various gain, beamwidth and downtilt ranges.
® AISG compatible.
® High strength pultruded fiberglass radome.
General specifications:
Frequency range 824-960 MHz
1710-2180 MHz
Impedance 50 ohms
VSWR
<1.5:1
Intermodulation (2x20w)
IM3: -150 dBc
Polarization
+45° and -45°
Connector
4 x 7/16 DIN female
Isolation intrasystem
intersystem
>30 dB
>50 dB (824-960 // 1710-2180 MHz)
Weight
36.4 Ib (16.5 kg)
Dimensions
51.8 x 10.3 x 5.5 inches
(1316 x 262 x 139 mm)
Equivalent flat plate area
4.13 ft2 (0.384 m2)
Wind survival rating*
120 mph (200 kph) sustained
150 mph (240 I(ph) in a 3 second burst
Shipping dimensions
64 x 11.9 x 7.6 inches
(1626 x 302 x 192 mm)
Shipping weight
45 Ib (20.4 kg)
Mounting
Fixed mount options are available for 2 to
4.6 inch (50 to 115 mm) OD masts.
See reverse for order information.
2]f
Horizontal pattern Vertical pattern
t45°- polarization t45°- polarization
01-14° electrical downtilt
1710-2180 MHz
Horizontal pattern Vertical pattern
t45°- polarization t45°- polarization
01-81 electrical downtilt
Specifications:
824-894 MHz 870-960 MHz
1710-1880 MHz 1850-1990 MHz
1920-2180 MHz
Gain
14 dBi 14 dBi
16.5 dBi 16.8 dBi
17 dBi
Front -to -back ratio
>26 dB (co -polar) >26 dB (co -polar)
>25 dB (co -polar) >25 dB (co -polar)
>25 dB (co -polar)
Maximum input power
per input
400 watts (at 50°C) 400 watts (at 50°C)
250 watts (at 50°C) 250 watts (at 50°C)
250 watts (at 50°C)
total power
800 watts (at 50°C)
500 watts (at 50°C)
+45° and -45° polarization
68° (half -power) 65° (half -power)
65° (half -power) 65° (half -power)
63° (half -power)
horizontal beamwidth
+45° and -45° polarization
16° (half -power) 14.5° (half -power)
7.8° (half -power) 7.3° (half -power)
6.8° (half -power)
vertical beamwidth
Electrical downtilt
0°-14° 0°-14°
0°-8° 0°-8°
0°-8°
continuously adjustable
Sidelobe suppression for
0° 7° 14'T 0° 7° 14'T
0° 4° 8° T 0° 4° 8'T
0° 4° 8'T
first sidelobe above horizon
14 14 13 dB 14 14 13 dB
14 14 14 dB 16 16 15 dB
15 16 15 dB
Cross polar ratio
Main direction 0°
20 dB (typical) 20 dB (typical)
16 dB (typical) 18 dB (typical)
20 dB (typical)
Sector t60°
>10 dB >10 dB
>10 dB >10 dB
>10 dB
Mechanical design is based on environmental conditions as stipulated
in EIA -222-F (June 1996) and/or ETS 300 019-1-4 which include the
[11, er
static mechanical load imposed on an antenna by wind at maximum
/
velocity. See the Engineering Section of
the catalog for further details.
10633-J
936.2700/b
Kathrein Inc., Scala
Division Post Office Box 4580 Medford, OR
97501 (USA) Phone: (541) 779-6500 Fax: (541) 779-3991
Email: communications@kathrein.com
Internet: www.kathrein-scala.com
Mounting Options:
Model Description
2 x 738 546 Mounting Kit for 2 to 4.6 inch
742033 Three -panel Sector Mounting Kit
742034 Three -panel Sector Mounting Kit
(139.7 mm mm) OD steel mast.
737978 Tilt Mount Kit
0-16 Degrees downtilt angle.
Order Information:
Model
Description
55.4
7422e4 Antenna with nnoDIN connectors
2.625 inches ± 0. 125
r-
51,8 inches
|
(1316 mm)
|
ichea
824-960
1824-960 F__4�9F,4--y]J1710-2180
1710-2180
All specifications are subject Wchange without notice. The latest specifications are available a1www,kathvain*cala.00m.
mm»minmo,Scala Division Post Office Box *000 Medford, onnrno1 (uo/V Phone: (541) 779-6500 mm: (541) 779-3991
80010764
700 MHz Dual Rand 4', 65 Degree Antenna
RET
Kathrein's X -polarized antennas are designed for use in digital
polarization diversity systems.
® X -polarized (+45° and -45°).
® UV resistant fiberglass radomes.
® Wideband vector dipole technology.
® DC Grounded metallic parts for impulse suppression.
® RET motor housed inside the radome and field replaceable.
General specifications:
Frequency range
698-894 MHz H 1710-2170 MHz
Impedance
50 ohms
VSWR
<1.5:1
Intermodulation (2x20w)
IM3:< -150 dBc
Polarization
+45° and -45°
Connector
4 x 7-16 DIN female (long neck)
Isolation
intrasystem >30 dB // intersystem >35 dB
See reverse for order information.
IRT specifications:
>30 dB (co -polar)
Logical interface ex factory')
AISG 1.1
Protocols
AISG 1.1 and 3GPP/AISG 2.0 compliant
Hardware interface')
2 x 8pin connector acc. IEC 60130-9;
according to AISG:
- RCUin (male): Control / Daisy chain in
- RCUout (female): Daisy chain out
Power supply
10-30 V
Power Consumption
<1 W (standby); <8.5 W (motor activated)
Adjustment time (full range)
40 seconds
Adjustment cycles
>50,000
Certification
FCC 15.107 Class B Computing Devices
z,(
698-894 MHz
Horizontal pattern Vertical pattern
t45°- polarization t45°- polarization
0°-16° electrical downtilt
1710-2170 MHz
Horizontal pattern Vertical pattern
t45°- polarization t45°- polarization
01-101 electrical downtilt
') The protocol of the logical interface can be switched from AISG 1.1 to 3GPP/AISG
2.0 and vice versa with a vendor specific command. Start-up operation of the
RCU 86010149 is possible in an RET system supporting AISG 1.1 or supporting
3GPP/AISG 2.0 after performing a layer 2 reset before address assignment. The
protocol can also be changed as follows: AISG 1.1 to 3GPP: Enter "3GPP" into
the additional data filed "Installer's ID" and perform a layer 7 reset or a power
reset. 3GPP to AISG 1.1: Enter "AISG 1" into the additional datafield "Installer's
ID" and perform a layer 2 reset or a power reset. After switching the protocol any
other information can be entered into the "Installer's ID" field.
') The tightning torque for fixing the connector must be 0.5-1.0 Nm ('hand -tightened').
The connector should be tightened by hand only!
specifications:
698-806 MHz
824-894 MHz
1710-1755 MHz
1850-1990 MHz
2110-2170 MHz
Gain
14.3 dBi
14.8 dBi
17.3 dBi
17.5 dBi
17.3 dBi
Front -to -back ratio
>30 dB (co -polar)
>27 dB (co -polar)
>30 dB (co -polar)
>30 dB (co -polar)
>30 dB (co -polar)
32 dB (average)
30 dB (average)
34 dB (average)
34 dB (average)
34 dB (average)
Maximum input power
500 watts (at 50°C)
500 watts (at 50°C)
300 watts (at 50°C)
300 watts (at 50°C)
300 watts (at 50°C)
per input
+45° and -45° polarization
68° (half -power)
65° (half -power)
61° (half -power)
60° (half -power)
61° (half -power)
horizontal beamwidth
+45° and -45° polarization
15° (half -power)
13.5° (half -power)
7.5o (half -power)
7.5° (half -power)
7.5° (half -power)
vertical beamwidth
Electrical downtilt
0°-16°
0°-16°
01-10°
01-10°
01-10°
continuously adjustable
Min sidelobe suppression for
0° 8° 16° T
0° 8° 16'T
0° 5° 10'T
0° 5° 10'T
0° 5° 10"T
first sidelobe above main beam 17 16 16 dB
18 16 16 dB
18 18 17 dB
18 18 17 dB
18 18 17 dB
average
19 19 18 dB
22 20 20 dB
20 20 20 d6
20 20 20 dB
20 20 20 dB
Cross polar ratio
Main direction 0°
25 dB (typical)
25 dB (typical)
25 dB (typical)
25 d6 (typical)
25 d6 (typical)
Sector t60°
>10 dB, 15 dB (avg)
>8 d6, 14 dB (avg)
>8 dB, 14 dB (avg)
>10 dB, 16 dB (avg)
>8 dB, 14 dB (avg)
Tracking
1.5 db
1.5 db
2.0 db
1.0 db
2.0 db
Squint
t2.5°
t4°
t4°
t1.5°
t4°
AWN
ad• r'e� Aft—uw .d.... a»anme� a ad,uuaF
11223-G Sep 1, 2012 ...............................
936.4133
Kathrein Inc., Scala Division Post Office Box 4580 Medford, OR 97501 (USA) Phone: (541) 779-6500 Fax: (541) 779-3991
Email: communications@kathrein.com Internet: www.kathrein-scala.com
80010764
700 MHz Dual Rand 4', 65 Degree Antenna
RET
Mechanical specifications:
Weight
40.8 Ib (18.5 kg)
Dimensions
55.2 x 11.8 x 6 inches
(1403 x 300 x 152 mm)
Wind load
at 93 mph (150kph)
Front/Side/Rear
156 Ibf / 59 Ibf / 160 Ibf
(690 N) / (260 N) / (710 N)
Mounting category
M (Medium)
Wind survival rating*
150 mph (240 kph)
Shipping dimensions
64.8 x 12.6 x 7.5 inches
+45°
(1646 x 322 x 190 mm)
Shipping weight
50 Ib (22.7 kg)
Mounting
Mounting hardware included for 2 to 4.6 inch
(50 to 115 mm) OD masts.
KATHREIN 66010149
FCTested To Comply
E With FCC Standards
This device complies vrith part 15 of the FCC Rules.
Operation is subject to the folloning two conditions:
(1)This device may not cause harmful interference,
and (2) this device must accept any interference
received, including interference that may cause
undesired operation.
Note: Refer to part number
860 10149 for the
specifications of the
remote control actuator.
2.625 inches ± 0.125
(68 mm ± 4)
58 inches
(1474 mm)
56.4 inches
(1433 mm)
55.2 inches
(1403 mm)
6 inchesr
4fa z 'v
r inches
11
b b 6 6 6 6 6 a
7-16 7-16 8pin Spin 8pin 8pin 7.16 7-16
long neck female male female male long neck
Order Information:
Model Description
800 10764 Dualband antenna with mounting bracket * Mechanical design is based on environmental conditions as stipulated
0'-16° // 0°-10' electrical downtilt inTIA-222-G-2 (December 2009) and/or ETS 300 019-1-4 which include
800 10764 K Dualband antenna with the static mechanical load imposed on an antenna by wind at maximum
mounting bracket and mechanical tilt bracket velocity. See the Engineering Section of the catalog for further details.
0°-16° // 0°-10° electrical downtilt
All specifications are subject to change without notice. The latest specifications are available at www.kathrein-scala.com.
Kathrein Inc., Scala Division Past Office Box 4580 Medford, OR 97501 (USA) Phone: (541) 779-6500 Fax: (541) 779-3991
Email: communications@l(athrein.com Internet: www.kathrein-scala.com
698-894 I696-894
iRCU iRCU
+45°
1710-2170
out in out in
1710 2170
—45°
+45°
b b 6 6 6 6 6 a
7-16 7-16 8pin Spin 8pin 8pin 7.16 7-16
long neck female male female male long neck
Order Information:
Model Description
800 10764 Dualband antenna with mounting bracket * Mechanical design is based on environmental conditions as stipulated
0'-16° // 0°-10' electrical downtilt inTIA-222-G-2 (December 2009) and/or ETS 300 019-1-4 which include
800 10764 K Dualband antenna with the static mechanical load imposed on an antenna by wind at maximum
mounting bracket and mechanical tilt bracket velocity. See the Engineering Section of the catalog for further details.
0°-16° // 0°-10° electrical downtilt
All specifications are subject to change without notice. The latest specifications are available at www.kathrein-scala.com.
Kathrein Inc., Scala Division Past Office Box 4580 Medford, OR 97501 (USA) Phone: (541) 779-6500 Fax: (541) 779-3991
Email: communications@l(athrein.com Internet: www.kathrein-scala.com
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