Rf Exposure

FCC ID: HLZUWA2

RF Exposure Info

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FCCID_1946253

FCC ID: HLZUWA2 IC: 1754F-UWA2 15. Maximum Permissible Exposure (MPE) 15.1 Standard Applicable According to §1.1307(b)(1), systems operating under the provisions of this section shall be op- erated in a manner that ensure that the public is not exposed to radio frequency energy level in excess of the Commission’s guideline. This is a Mobile device, the MPE is required. According to §1.1310 and §2.1093 RF exposure is calculated. Limits for Maximum Permissive Exposure (MPE) Frequency Range Electric Field Magnetic Field Power Density Averaging Time (MHz) Strength (V/m) Strength (A/m) (mW/cm2) (minute) Limits for General Population/Uncontrolled Exposure 0.3-1.34 614 1.63 *(100) 30 1.34-30 824/f 2.19/f *(180/f2 ) 30 30-300 27.5 0.073 0.2 30 300-1500 / / F/1500 30 1500-15000 / / 1.0 30 F = frequency in MHz * = Plane-wave equipment power density International Standards Laboratory Report Number: ISL-13LR039FE

FCC ID: HLZUWA2 IC: 1754F-UWA2 15.2 Maximum Permissible Exposure (MPE) Evaluation The worst case of Peak power N HT20 mode: refer to section 6.5 for detail measurement date. Power measurement: Output Chain (dBm) Combine Peak Mode Freq(MHz) channel Output Limit(dBm) Result Chain A chain B Power (dBm) 5180 36 11.42 9.72 13.66 16.98 Pass N HT20 5200 40 10.71 10.09 13.42 16.98 Pass 5240 48 10.09 10.17 13.14 16.98 Pass Prediction of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 S=PG/4πR2 Where: S = Power density P = Power input to antenna 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 Maximum peak output power at antenna input terminal: 13.66 (dBm) Maximum peak output power at antenna input terminal: 23.22736796 (mW) Duty cycle: 100 (%) Maximum Pav : 23.22736796 (mW) Antenna gain (typical): 5.9 (dBi) Maximum antenna gain: 3.89045145 (numeric) Prediction distance: 20 (cm) Prediction frequency: 5180 (MHz) MPE limit for uncontrolled exposure at prediction 1 (mW/cm2) Power density at predication frequency at 20 (cm) 0.0179867 (mW/cm^2) Measurement Result The predicted power density level at 20 cm is 0.0179 mW/cm2. This is below the uncontrolled exposure limit of 1 mW/cm2 at 5180MHz. International Standards Laboratory Report Number: ISL-13LR039FE


Document Created: 2019-07-19 22:07:09
Document Modified: 2019-07-19 22:07:09
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