18_QDMEKM10 RFExp

FCC ID: QDMEKM10

RF Exposure Info

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FCCID_4104238

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION Product Description everysing Karaoke Microphone Model Name QDMEKM10 FCC ID QDMEKM10 2. EVALUATION METHOD According to 447498 D01 General RF Exposure Guidance v05 The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. Where f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation 3. CALCULATION According to the follow transmitter output power（Pt）formula： Pt=（E x d）2/（30 x gt） Pt=transmitter output power in watts gt=numeric gain of the transmitting antenna (unitess) E=electric field strength in V/m d=measurement distance in meters (m) BR/EDR Pt=-1.863dBm=0.65mW The result for RF exposure evaluation SAR=(0.65mW /5mm) .[√2.48(GHz)]= 0.20<3.0 for 1-g SAR BLE Pt=2.491dBm=1.77mW The result for RF exposure evaluation SAR=(1.77mW /5mm) .[√2.48(GHz)]= 0.56<3.0 for 1-g SAR 4. CONCLUSION The SAR evaluation is not required.


Document Created: 2018-12-12 09:21:49
Document Modified: 2018-12-12 09:21:49
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