RF Exposure

FCC ID: YAMDS-9300

RF Exposure Info

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FCCID_4314124

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG181009004-00A FCC§1.1307 (b)(1) & §2.1091& RSS-102 CLAUSE 4- MAXIMUM PERMISSIBLE EXPOSURE (MPE) Applicable Standard According to subpart 15.247(i)and subpart §1.1310, systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. Limits for Maximum Permissible Exposure (MPE) (§1.1310, §2.1091) (B) Limits for General Population/Uncontrolled Exposure Frequency Range Electric Field Magnetic Field Power Density Averaging Time (MHz) Strength (V/m) Strength (A/m) (mW/cm2) (minutes) 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 1500–100,000 / / 1.0 30 f = frequency in MHz; * = Plane-wave equivalent power density; According to §1.1310 and §2.1091 RF exposure is calculated. According to RSS-102 § 4Table 4, RF Field Strength Limits for Devices Used by the General Public (Uncontrolled Environment) FCC Part 90 Page 10 of 65

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG181009004-00A Calculated formulary: Prediction of power density at the distance of the applicable MPE limit S = PG/4R² = power density (in appropriate units, e.g. mW/cm2); P = power input to the antenna (in appropriate units, e.g., mW); G = power gain of the antenna in the direction of interest relative to an isotropic radiator, the power gain factor, is normally numeric gain; R = distance to the center of radiation of the antenna (appropriate units, e.g., cm); Result: Max. Target Power FCC ISEDC FCC ISEDC Antenna Gain Evaluation Frequency including Tolerance Power Power MPE MPE Distance (MHz) Density Density Limit Limit (dBi) (numeric) (dBm) (mW) (cm) (mW/cm2) (W/m2) (mW/cm2) (W/m2) 450-460 9 7.94 30 1000 65.00 0.15 1.50 0.30 1.70 Result: Compliance, The device meet FCC MPE at 65 cm distance. FCC Part 90 Page 11 of 65


Document Created: 2019-06-12 02:15:55
Document Modified: 2019-06-12 02:15:55
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