According to §15

Benjamin

EMFR

ShenZhen KuHangXin Technology Co., Ltd NVC300 Camera 2BBGN-NVC300 2BBGNNVC300 nvc300

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Shenzhen CTB Testing Co., Ltd.

FCC ID:2BBGN-NVC300

Portable device

According to §15.247(e)(i) and §1.1307(b)(1), 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.

According to KDB447498 D01 General RF Exposure Guidance V06

The 1-g SAR 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

When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to

determine SAR test exclusion.

5GWIFI:

Conduct

Max

Channel ed Conducte Tune-up tune-up

Modulation Freq. power d power power power

(GHz) (dBm) (mW) (dBm) (dBm)

Max tune-up power (mW)

Result SAR

Distance (mm)

calculatio

Exclusion

n

threshold

SAR test exclusion

5.18 7.184 5.23

7±1 8.00

6.31

802.11a 5.2 7.463 5.58

7±1 8.00

6.31

5.24 7.502 5.63

7±1 8.00

6.31

5.18 6.613 4.58

6±1 7.00

5.01

802.11ac 20

5.2

6.826

4.82

6±1 7.00

5.01

5.24 6.957 4.96

6±1 7.00

5.01

802.11ac 5.19 7.533 5.67

7±1 8.00

6.31

40

5.23 7.668 5.85

7±1 8.00

6.31

802.11ac8 0

5.21

7.142

5.18

7±1 8.00

6.31

5.18 7.16

5.20

7±1 8.00

6.31

802.11n( HT20)

5.2

7.245

5.30

7±1 8.00

6.31

5.24 7.447 5.56

7±1 8.00

6.31

802.11n( 5.19 7.486 5.61

7±1 8.00

6.31

HT40) 5.23 7.61

5.77

7±1 8.00

6.31

<5

2.87207

3.00

<5

2.87761

3.00

<5

2.88865

3.00

<5

2.28137

3.00

<5

2.28577

3.00

<5

2.29454

3.00

<5

2.87484

3.00

<5

2.88590

3.00

<5

2.88037

3.00

<5

2.87207

3.00

<5

2.87761

3.00

<5

2.88865

3.00

<5

2.87484

3.00

<5

2.88590

3.00

YES YES YES YES YES YES YES YES YES YES YES YES YES YES

Conclusion: For the max result : 2.88865 FCC Limit 3.0 for 1g SAR.



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