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RF Exposure

Kunwei Medical Electronics Co., Ltd KD-17B Behind-The-Ear Hearing Aid 2A9S9-KD-17B 2A9S9KD17B kd 17b

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FCC RF Exposure
EUT Description: Behind-The-Ear Hearing Aid Model No.: KD-17B,KD-X78,KG-7XB,KV-70X FCC ID: 2A9S9-KD-17B Equipment type: Portable Device

1. Test Procedure According to KDB 447498 D01 General RF Exposure Guidance v06

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 The result is rounded to one decimal place for comparison

The test exclusions are applicable only when the minimum test separation distance is  50 mm and for transmission frequencies between 100 MHz and 6GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion.

2. Test Result of RF Exposure Evaluation

2402MHz 2441MHz 2480MHz

Output power Result dBm/ mW calculation

4.753/2.9874 4.702/2.9526 3.811/2.4049

0.926 0.923 0.757

SAR Exclusion threshold 3.0 3.0 3.0

SAR Test exclusion
Yes Yes Yes


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