MPE

FCC ID: RD7-SENSOR4X1

RF Exposure Info

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FCCID_2076423

1.1.1. Maximum Permissible Exposure

FCC, Part 15 Subpart C §15.407(f)
Industry Canada RSS-Gen §5.5

Calculations for Maximum Permissible Exposure Levels
Power Density = Pd (mW/cm2) = EIRP/(4d2)
EIRP = P * G * 2
P = Peak output power (mW)
G = Antenna numeric gain (numeric)
d = Separation distance (cm)
Numeric Gain = 10 ^ (G (dBi)/10)

The Fluke Networks Sensor4 has three transmitters operating in each band. It also has
two similar radio’s. The peak power in the table below is calculated by assuming a
worst case scenario where all transmitters are operating simultaneously in the same
channel and x2 the maximum power found in Section 5.1.2 Peak Output Power to take
into account the two radio modules operating simultaneously in the same band.
Because the EUT belongs to the General Population/Uncontrolled Exposure the limit of
power density is 1.0 mW/cm2

The following table uses the highest antenna gain for each band.
                                             Peak
                                Numeric                Peak Output      Power Density (S)
 Freq. Band       Antenna                   Output
                                 Gain                    Power x 2          @ 20cm
    (MHz)        Gain (dBi)                 Power
                               (numeric)                   (mW)            mW/cm2
                                            (dBm)
 5150 – 5250    Integral 3.1     2.00       +16.92         98.4                 0.04
 5250 – 5350    Integral 3.1     2.00       +23.14         412.1                0.16
 5470 - 5725    Integral 4.8     3.02       +22.72         374.1                0.23

Note: for mobile or fixed location transmitters the minimum separation distance is 20cm,
even if calculations indicate the MPE distance to be less.
Specification
Maximum Permissible Exposure Limits


 FCC §1.1310 Limit = 1mW / cm2 from 1.310 Table 1

 RSS-Gen §5.5 Before equipment certification is granted, the application requirements of
 RSS-102 shall be met.


Laboratory Measurement Uncertainty for Power Measurements

 Measurement uncertainty                       1.33 dB



Document Created: 2013-08-30 13:05:05
Document Modified: 2013-08-30 13:05:05

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