RF exposure report

FCC ID: 2ATL9ZN1310

RF Exposure Info

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FCCID_4352176

CERPASS TECHNOLOGY CORP. Report No.: TEFC1902109 7. Radio Frequency Exposure 7.1 Applicable Standards The measurements shown in this test report were made in accordance with the procedures given in FCC Part 2 (Section 2.1091) KDB 447498 IEEE C95.1:2005 7.2 EUT Specification Frequency band 902MHz ~ 928MHz (Operating) Portable (<20cm separation) Device category Mobile (>20cm separation) Occupational/Controlled exposure Exposure General Population/Uncontrolled exposure classification Single antenna Multiple antennas Antenna diversity Tx diversity Rx diversity Tx/Rx diversity MPE Evaluation* Evaluation applied SAR Evaluation N/A Remark: 1. The maximum Fundamental Emission is 107dBuV/m at 915MHz (with 3dbi antenna gain.) 2. DTS device is not subject to routine RF evaluation; MPE estimate is used to justify the compliance. 3. For mobile or fixed location transmitters, no SAR consideration applied. The maximum power density is 1.0 mW/cm2 even if the calculation indicates that the power density would be larger. Cerpass Technology Corp. Issued Date : Jun. 24, 2019 T-FD-516-0 Ver 1.0 Page No. : 41 of 43 FCC ID. : 2ATL9ZN1310

CERPASS TECHNOLOGY CORP. Report No.: TEFC1902109 7.3 Test Results No non-compliance noted. 7.4 Calculation 30  P  G E2 Given E  & S d 3770 Where E = Field strength in Volts / meter P = Power in Watts G = Numeric antenna gain d = Distance in meters S = Power density in milliwatts / square centimeter Combining equations and re-arranging the terms to express the distance as a function of the remaining variables yields: 30  P  G S 3770d 2 Changing to units of mW and cm, using: P (mW) = P (W) / 1000 and d (cm) = d(m) / 100 Yields 30  P / 1000  G PG S  0.0796  2 3770  d / 100 2 d Where d = Distance in cm P = Power in mW G = Numeric antenna gain S = Power density in mW / cm2 Cerpass Technology Corp. Issued Date : Jun. 24, 2019 T-FD-516-0 Ver 1.0 Page No. : 42 of 43 FCC ID. : 2ATL9ZN1310

CERPASS TECHNOLOGY CORP. Report No.: TEFC1902109 7.5 Maximum Permissible Exposure Fundamental Fundamental Fundamental Fundamental Antenna Gain Antenna Gain distance Emission Emission Emission Emission (dBi) (linear) (m) (dBuV/m) (V/m) (W) (dBm) 3 1.9952 3 107 0.223872 0.03 14.77 Fundamental Antenna Distance Power Density Limit Emission Gain(dBi) (cm) (mW/cm2) (mW/cm2) (dBm) 14.77 3 20 0.01191 0.6013 Cerpass Technology Corp. Issued Date : Jun. 24, 2019 T-FD-516-0 Ver 1.0 Page No. : 43 of 43 FCC ID. : 2ATL9ZN1310


Document Created: 2019-07-09 16:23:58
Document Modified: 2019-07-09 16:23:58
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