RF exposure info

FCC ID: ZATXTAG

RF Exposure Info

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FCCID_2197097

SAR Exclusion Justification Test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm Guidance document reference: 447498 D01 General RF Exposure Guidance v05r01, page 11, paragraph 4.3.1(1). The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] * [√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where • f(GHz) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation • The result is rounded to one decimal place for comparison • 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to 5) in section 4.1 is applied to determine SAR test exclusion. SAR test exclusion analysis: Assumptions: Since the exact separation distance may vary from sensor to sensor, the minimum separation distance of 5 mm is assumed per the guidance document. Max. power of channel: 3.42 mW Min. separation distance: 5 mm Max. Frequency: 2.48 GHz [(Pwr/Dist)*√Freq] = 1.08 The result of the above SAR threshold calculation demonstrates that the result is less than the 1-g numeric threshold of 3 and the 10-g numeric threshold of 7.5. Conclusion: The above analysis shows that the evaluated device qualifies for exemption from SAR testing. Signed: , Chief Engineer 2/21/2014


Document Created: 2014-02-21 10:58:20
Document Modified: 2014-02-21 10:58:20
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