RF Exposure Info

FCC ID: 2AH4HATD300B

RF Exposure Info

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FCCID_4471393

FCC MPE CALCULATION (FCC ID: 2AH4HATD300B) RF Exposure Requirements: 47 CFR §1.1307(b) RF Radiation Exposure Limits: 47 CFR §1.1310 RF Radiation Exposure Guidelines: FCC OST/OET Bulletin Number 65 EUT Frequency Band: BLE: 2402-2480MHz GSM850: 824.2 – 848.8 MHz GSM1900: 1850.2 – 1909.8 MHz WCDMA Band II: 1852.4 – 1907.6 MHz WCDMA Band V: 826.4 – 846.6 MHz LTE Cat-1 Band 2: 1850.7-1909.3MHz LTE Cat-1 Band 4: 1710.7-1754.3MHz LTE Cat-1 Band 5: 824.7-848.3MHz LTE Cat-1 Band 7: 2502.5 – 2567.5MHz Limits for General Population/Uncontrolled Exposure in the band of: 300 - 1500 MHz, Power Density Limit: f/1500 mW/cm2 Limits for General Population/Uncontrolled Exposure in the band of: 1500 - 100,000 MHz Power Density Limit: 1 mW / cm2 Equation: S = PG / 4R2 or R = √PG / 4S Where, S = Power Density P = Power Input to Antenna G = Antenna Gain R = distance to the center of radiated antenna ____________________________________________________________________________________________________________ Prediction distance 20 cm EUT: ATD300B Max Conducted Antenna Gain Separation Power Density MPE Limit (mW/ Radio Frequency (MHz) Average Output (dBi) distance (cm) (mW/ cm2) cm2) Power (dBm) BLE 2400-2480 3.35 -2.5 20 0.0002 1 GSM 824.2 – 848.8 25.97 0.77 20 0.0939 0.549 GSM 1850.2 – 1909.8 25.00 2.92 20 0.1232 1 WCDMA Band II 1852.4 – 1907.6 25.00 2.92 20 0.1232 1 WCDMA Band V 826.4 – 846.6 25.00 0.77 20 0.0751 0.551 LTE Band2 1850.7-1909.3 25.00 2.92 20 0.1232 1 LTE Band4 1710.7-1754.3 25.00 3.05 20 0.1270 1 LTE Band5 824.7-848.3 25.70 0.77 20 0.0883 0.550 LTE Band7 2502.5 – 2567.5 25.00 3.72 20 0.1482 1 The above results show that the device complies with the MPE requirement. The BLE is able to transmit simultaneously with cellular band. The ratio = 0.0002/1 + 0.0939/0.549 = 0.171 < 1.0 The above results show that the device complies with the simultaneous transmission MPE requirement. Completed By: David Zhang Vista Laboratories, Inc. 1261 Puerta Del Sol, San Clemente, CA 92673 Date: July 19th, 2019

ISED RF Exposure Evaluation (ISED ID: 21385-ATD300B) RF Exposure Requirements: RSS-102 Issue 5: March 2015 RF Radiation Exposure Limits: RSS-102 Issue 5: March 2015 RF Radiation Exposure Guidelines: RSS-102 Issue 5: March 2015 EUT Frequency Band: BLE: 2402-2480MHz GSM850: 824.2 – 848.8 MHz GSM1900: 1850.2 – 1909.8 MHz WCDMA Band II: 1852.4 – 1907.6 MHz WCDMA Band V: 826.4 – 846.6 MHz LTE Cat-1 Band 2: 1850.7-1909.3MHz LTE Cat-1 Band 4: 1710.7-1754.3MHz LTE Cat-1 Band 5: 824.7-848.3MHz LTE Cat-1 Band 7: 2502.5 – 2567.5MHz Limits for General Population/Uncontrolled Exposure in the band of: 300 - 6,000 MHz Exemption limit for Routine Evaluation: 1.31 x 10-2 ƒ0.6834 W EUT: ATD300B Max Conducted Evaluation Antenna Gain Max E.I.R.P Radio Frequency (MHz) Output Power Max E.I.R.P (W) Exemption limit (dBi) (dBm) (dBm) (W) BLE 2402-2480 3.35 -2.5 0.85 0.001 2.676 GSM 824.2 – 848.8 25.97 0.77 26.74 0.472 1.289 GSM 1850.2 – 1909.8 25.00 2.92 27.92 0.619 2.239 WCDMA Band II 1852.4 – 1907.6 25.00 2.92 27.92 0.619 2.241 WCDMA Band V 826.4 – 846.6 25.00 0.77 25.77 0.378 1.291 LTE Band2 1850.7-1909.3 25.00 2.92 27.92 0.619 2.240 LTE Band4 1710.7-1754.3 25.00 3.05 28.05 0.638 2.122 LTE Band5 824.7-848.3 25.70 0.77 26.47 0.444 1.289 LTE Band7 2502.5 – 2567.5 25.00 3.72 28.72 0.745 2.752 The above results show that the E.I.R.P of this device is below the exemption limit for Routine Evaluation. Completed By: David Zhang Vista Laboratories, Inc. 1261 Puerta Del Sol, San Clemente, CA 92673 Date: July 19th, 2019


Document Created: 2019-10-02 15:55:51
Document Modified: 2019-10-02 15:55:51
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