FCC MPE CALCULATION (FCC ID: 2AH4HATD310S) RF Exposure Requirements:
RF Radiation Exposure Limits:
RF Radiation Exposure Guidelines:
EUT Frequency Band:
47 CFR 1.1307(b) 47 CFR 1.1310 FCC OST/OET Bulletin Number 65 BLE: 2402-2480MHz WCDMA Band II: 1852.4 1907.6 MHz WCDMA Band IV: 1712.4 1752.6 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 12: 699.7-715.3MHz LTE Cat-1 Band 13: 779.5-784.5MHz 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 / 4R2 or R = PG / 4S 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: ATD310 Radio Frequency (MHz) Max Conducted Output Power BLE WCDMA Band II WCDMA Band IV WCDMA Band V LTE Band2 LTE Band4 LTE Band5 LTE Band12 LTE Band13 2400-2480 1852.4 1907.6 1712.4 1752.6 826.4 846.6 1850.7-1909.3 1710.7-1754.3 824.7-848.3 699.7-715.3 779.5-784.5
(dBm) 3.35 24.00 24.00 24.00 24.50 24.50 24.50 24.50 24.50 Antenna Gain
(dBi)
-2.5 4 4 4 4 4 4 4 4 Separation distance (cm) Power Density MPE Limit (mW/
(mW/ cm2) cm2) 20 20 20 20 20 20 20 20 20 0.0002 0.1255 0.1255 0.1255 0.1408 0.1408 0.1408 0.1408 0.1408 1 1 1 0.551 1 1 0.550 0.466 0.518 The above results show that the device complies with the MPE requirement. The BLE is able to transmit simultaneously with LTE. The ratio = 0.0002/1 + 0.1408/0.466 = 0.302 < 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: May 23rd, 2019 ISED RF Exposure Evaluation (ISED ID: 21385-ATD310S) RF Exposure Requirements:
RF Radiation Exposure Limits:
RF Radiation Exposure Guidelines:
EUT Frequency Band:
RSS-102 Issue 5: March 2015 RSS-102 Issue 5: March 2015 RSS-102 Issue 5: March 2015 BLE: 2402-2480MHz WCDMA Band II: 1852.4 1907.6 MHz WCDMA Band IV: 1712.4 1752.6 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 12: 699.7-715.3MHz LTE Cat-1 Band 13: 779.5-784.5MHz Limits for General Population/Uncontrolled Exposure in the band of:
300 - 6,000 MHz Exemption limit for Routine Evaluation:
1.31 x 10-2 0.6834 W EUT: ATD310 Radio Frequency (MHz) Max Conducted Output Power BLE WCDMA Band II WCDMA Band IV WCDMA Band V LTE Band2 LTE Band4 LTE Band5 LTE Band12 LTE Band13 2400-2480 1852.4 1907.6 1712.4 1752.6 826.4 846.6 1850.7-1909.3 1710.7-1754.3 824.7-848.3 699.7-715.3 779.5-784.5
(dBm) 3.35 24.00 24.00 24.00 24.50 24.50 24.50 24.50 24.50 Antenna Gain Max E.I.R.P
(dBi)
(dBm) Max E.I.R.P (W) Exemption limit Evaluation 2.0 0.6 0.6 2.4 0.6 0.6 2.4 2.4 2.4 5.35 24.6 24.6 26.4 25.1 25.1 26.9 26.9 26.9 0.0034 0.288 0.288 0.437 0.324 0.324 0.490 0.490 0.490
(W) 2.67 2.24 2.12 1.29 2.24 2.12 1.29 1.15 1.24 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: May 23rd, 2019