SAR Exclusion FB409_revised

FCC ID: XRAFB409

RF Exposure Info

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FCCID_3960795

EMC Test Data Client: Fitbit, Inc. Job Number: JD105947 T-Log Number: T106007 Model: FB409 Project Manager: Deepa Shetty Contact: Ricky Wang Project Coordinator: - Standard: FCC 15.247, 15.209 / RSS-247, RSS-210 / LP0002 Class: N/A Maximum Permissible Exposure / SAR Exclusion Test Specific Details The objective of this test session is to perform final qualification testing of the EUT with respect to the Objective: specification listed above. Date of Test: 5/3/2018 Test Engineer: David Bare General Test Configuration MPE Calculation uses the free space transmission formula: S = (PG)/(4 πd2) Where: S is power density (W/m2), P is output power (W), G is antenna gain relative to isotropic, d is separation distance from the transmitting antenna (m). SAR Exclusion for FCC uses the formula from KDB 447498 D01: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] · [√f(GHz)] Summary of Results Device complies with SAR exclusion at 5 mm separation for Yes extremities: FCC SAR Exclusion Calculation EUT Cable Loss Ant Power Separation SAR SAR Exclusion Limit Freq. Power Loss Gain at Ant EIRP Distance Exclusion MHz dBm mW* dB dBi dBm mW (mm) Calc. 2480 5.0 3.2 0 -10.0 5.0 0.32 5.0 1.00 7.5 Industry Canada SAR Exclusion Calculation (Highest of output power or EIRP) EUT Cable Loss Ant Power Separation Maximum SAR Exclusion Limit Freq. Power Loss Gain at Ant EIRP Distance Power or (mW) MHz dBm mW* dB dBi dBm mW (mm) EIRP 2480 5.0 3.2 0 -10.0 5.0 0.32 5.0 3.2 10.0 T106007 (FCC_ISED_Radio) FB409.xls MPE Calc 03-May-18 Page 1 of 1


Document Created: 0500-06-16 00:00:00
Document Modified: 0500-06-16 00:00:00
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