RF exposure letter

FCC ID: 2AR92-XS2

RF Exposure Info

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FCCID_4180309

FCC ID: 2AR92—XS2 RF EXPOSURE EVALUATION METHOD SAR Test Exclusion Thresholds for 100 MHz — 6 GHz and < 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. MHz 5 10 15 20 25 mm 150 39 77 16 155 194 a 300 27 5$ 82 110 137 4so 22 45 67 89 112 ss G 3 30 3 a 900 C 3 a7 e 70 1500 12 a a7 19 a1 ;fi:fi:‘] 1900 £ 2. * * 8 Threshold (mW) 2450 10 19 zo 38 18 3000 8 16 24 32 40 5200 7 13 20 26 33 5400 6 1 19 26 32 5600 6 12 19 25 31 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 folerance, mW)/(min. test separation distance, mm)] + [/f(GHz)] < 3.0 for 1—g SAR and < 7.6 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 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 is applied to determine SAR test exclusion.

FCC ID: 2AR92-XS2 Maximum Maximum tune-up Calculated Threshold Conducted Power conducted Value mode (distance≤5m Verdict Power tolerance(dBm) power (distance≤5 m) (dBm) mm) dBm mw pi/4DQPSK 1.967 1.0±1 2 1.585 0.5 Compliance SAR 3.0 test is BLE -0.427 0.0±1 1 1.26 0.4 exempted [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 2.512/5*√2.480=0.7911≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. Conclusion: SAR test is exempted


Document Created: 2019-02-26 14:37:17
Document Modified: 2019-02-26 14:37:17
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