RF Exposure

FCC ID: SDBSLC20

RF Exposure Info

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FCCID_1882072

Model: SLC20 FCC ID: SDBSLC20 IC: 2220A-SLC20

General Information:
Applicant: Sensus Metering Systems, Inc.
ACS Project: 12-2117
Device Category: Mobile
Environment: General Population/Uncontrolled Exposure

Technical Information:
Antenna Type: ½ Wave Dipole Antenna
Antenna Gain: 0 dBi
Maximum Transmitter Conducted Power: 29.21 dBm, 833.68 mW
Maximum System EIRP: 29.21 dBm, 833.68 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 Power
Distance
Frequency Power Density Limit Power Gain Gain Density
(cm)
(MHz) (dBm) (mW/Cm2) (mW) (dBi) (mW eq.) (mW/cm^2)
900 29.21 0.60 833.68 0 1.000 20 0.166

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: 12-2117 Advanced Compliance Solutions Page 2

Document Created: 2013-01-15 10:21:20
Document Modified: 2013-01-15 10:21:20

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