RF Exposure Info

FCC ID: Z9G-EDF75

RF Exposure Info

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FCCID_4497372

1 Safety Human Exposure 1.1 Radio Frequency Exposure Compliance 1.1.1 Electromagnetic Fields RESULT: Pass Test Specification Test standard : CFR47 FCC Part 2: Section 2.1091 CFR47 FCC Part 1: Section 1.1310 FCC KDB Publication 447498 v06 FCC KDB Publication 865664 D02 v01r02 OET Bulletin 65 (Edition 97-01) RSS-102 Issue 5 March 2015 FCC ID: Z9G-EDF65 IC: 1004A-EDF65  FCC requirements FCC requirement: Systems operating under the provisions of this section shall be operat ed in a manner that ensures that the public is not exposed to radio frequency energy level in excess limit for maximum permissible exposure. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 t his devic e has been defined as a mobile device whereby a distance of 20cm normally can be maintained between the user and the device. MPE Calculation Method according to OET Bulletin 65 Power Density: S (mW/cm2)= PG/4πR2 or EIRP/4πR2 Where: S = power density (mW/cm 2) P = power input to the antenna (mW) 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 (cm) The nominal maximum conducted output power specified: 2.4GHz FHSS: 0.34 dBm 5.8GHz: 3.60 dBm From the peak RF output power, the minimum mobile separation distance, d=20 cm, as well as the antenna gain (Max. 2.5 dBi for 2.4GHz FHSS and 1.5 dBi 5.8GHz), the RF power density can be calculated as below: For 2.4GHz FHSS: S(mW/cm2)= PG/4πR2 = 0.0004 mW/cm2 For 5.8GHz: S(mW/cm2)= PG/4πR2 = 0.001 mW/cm2

Limits for Maximum Permissible Exposure (MPE) according to FCC Part 1.1310: 1.0 mW/cm2 For Simultaneous transmitting of 2.4GHz FHSS and 5.8GHz: According to 865664D02 2.2 d) 1): The sum of the ratios of the spatially averaged results to the applicable frequency dependent MPE limits = 0.0003/1 + 0.004/1 = 0.0043 < 1  IC requirements: The EUT shall comply with the requirement of RSS-102 section 2.5.2. Exemption from Routine Evaluation Limits – RF Exposure Evaluation RF exposure evaluation is required if the separation distance between the user and/or bystander and the device’s radiating element is greater than 20 cm, except when the device operates as follows: at or above 300 MHz and below 6 GHz and the source-based, time-averaged maximum e.i.r.p. of the device is equal to or less than 1.31 x 10-2 ƒ0.6834 W (adjusted for tune-up tolerance), where ƒ is in MHz;  RF exposure evaluation exempted power for 2.4GHz FHSS: 2.676 W  RF exposure evaluation exempted power for 5.8GHz: 4.849 W The nominal maximum conducted output power specified: 2.4GHz FHSS: 0.34 dBm 5.8GHz: 3.60 dBm Antenna Gain: 2.5 dBi for 2.4GHz FHSS Antenna Gain: 1.5 dBi for 5.8GHz The Max. e.i.r.p. for 2.4GHz FHSS: 2.84 dBm = 0.002 W The Max. e.i.r.p. for 5.8GHz: 5.10 dBm = 0.003 W For Simultaneous transmitting of 2.4GHz FHSS and 5.8GHz: According to 865664D02 2.2 d) 1): The sum of the ratios of the spatially averaged results to the applicable frequency dependent MPE limits = 0.001/2.676 + 0.019/4.849 = 0.0043 < 1 Both e.i.r.p. for the 2.4GHz FHSS and 5.8GHz are less than the RF exposure evaluation exempted power. So RF exposure evaluation is not required. “RF Radiation Exposure Statement Caution: This Transmitter must be installed to provide a separation distance of at least 20 cm from all persons.”


Document Created: 2019-07-31 17:18:20
Document Modified: 2019-07-31 17:18:20
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