RF Exposure

FCC ID: R7PNG0R1S2

RF Exposure Info

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FCCID_1890220

Model: Gridstream S4 Modular SCADA/DA FCC ID: R7PNG0R1S2 IC: 5294A-NG0R1S2

General Information:
Applicant: Landis+Gyr Technology, Inc.
Device Category: Mobile
Environment: General Population/Uncontrolled Exposure

Technical Information – External Antenna:
Antenna Type: Whip
Antenna Gain: 5dBi
Maximum Transmitter Conducted Power: 29.06 dBm, 805.378 mW
Maximum System EIRP: 34.06 dBm, 2546.83 mW
Exposure Conditions: Greater than 20 centimeters

Technical Information – Internal Antenna:
Antenna Type: F-Antenna
Antenna Gain: 0dB
Maximum Transmitter Conducted Power: 29.06 dBm, 805.378 mW
Maximum System EIRP: 29.06 dBm, 805.378 mW
Exposure Conditions: Greater than 20 centimeters

MPE Calculation
2
The Power Density (mW/cm ) 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)
915 29.06 0.61 805.38 5 3.162 20 0.507

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)
915 29.06 0.61 805.38 0 1.000 20 0.160

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: 12-0182 Advanced Compliance Solutions Page 2

Document Created: 2013-01-30 10:37:48
Document Modified: 2013-01-30 10:37:48

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