RF Exposure

FCC ID: SDBSLC200

RF Exposure Info

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FCCID_1882102

Model: SLC200 FCC ID: SDBSLC200 IC: 2220A-SLC200

General Information:
Applicant: Sensus Metering Systems, Inc.
ACS Project: 12-2118
Device Category: Mobile
Environment: General Population/Uncontrolled Exposure

Technical Information:
Antenna Type: PCB Asymmetrical Dipole Antenna
Antenna Gain: 2 dBi
Maximum Transmitter Conducted Power: 29.21 dBm, 833.68 mW
Maximum System EIRP: 31.21 dBm, 1321.3 mW
Exposure Conditions: Greater than 20 centimeters

MPE Calculation
The Power Density (mW/cm2) is calculated as follows:

PG
S=
4πR 2
Where:
S = power density (in appropriate units, e.g. mW/cm2)
P = power input to the antenna (in appropriate units, e.g., mW)
G = power gain of the antenna in the direction of interest relative to an isotropic radiator
R = distance to the center of radiation of the antenna (appropriate units, e.g., cm)

MPE Calculator for Mobile Equipment
Limits for General Population/Uncontrolled Exposure*
Transmit Radio Power Radio Antenna Antenna
Distance Power Density
Frequency Power Density Limit Power Gain Gain (mW
(cm) (mW/cm^2)
(MHz) (dBm) (mW/Cm2) (mW) (dBi) eq.)
900 29.21 0.60 833.68 2 1.585 20 0.263

Installation Guidelines
The installation manual should contain text similar to the following advising how to install the equipment to
maintain compliance with the FCC RF exposure requirements:

RF Exposure
In accordance with FCC requirements of human exposure to radio frequency fields, the radiating element
shall be installed such that a minimum separation distance of 20 centimeters will be maintained.

Conclusion
This device complies with the MPE requirements by providing adequate separation between the device,
any radiating structure and the general population.

ACS Project: 12-2118 Advanced Compliance Solutions Page 2

Document Created: 2013-01-15 10:32:18
Document Modified: 2013-01-15 10:32:18

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