RF Exposure

FCC ID: SDBSGW100

RF Exposure Info

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FCCID_2900597

Model: SGW100 FCC ID: SDBSGW100

General Information:
Applicant: Sensus Metering Systems, Inc.
Device Category: Mobile
Environment: General Population/Uncontrolled Exposure

Technical Information:
Antenna Type: Monopole
Antenna Gain: 2 dBi dBi
Maximum Transmitter Conducted Power: 29.51 dBm, 893.31 mW
Maximum System EIRP: 31.51 dBm, 1415.79 mW
Exposure Conditions: 20 centimeters or greater

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)

Table 1: MPE Calculation
Power
Transmit Radio Radio Antenna Antenna Power
Density Distance
Frequency Power Power Gain Gain Density
Limit (cm)
(MHz) (dBm) (mW) (dBi) (mW eq.) (mW/cm^2)
(mW/Cm2)
901 29.51 0.6 893.31 2 1.585 20 0.282

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 greater than 20 centimeters 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: 15-3018 Advanced Compliance Solutions Page 2

Document Created: 2017-11-17 20:56:59
Document Modified: 2017-11-17 20:56:59

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