According to §15

Benjamin

RF Exposure

Shenzhen Dongzhi Technology Co., Ltd. VVABC-ULTRA2 SMART WATCH 2BEGY-VVABC-ULTRA2 2BEGYVVABCULTRA2 vvabc ultra2

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VVABC-ULTRA2 Smart Watch by Shenzhen Dongzhi

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Document Document DEVICE REPORTVVABC-ULTRA2-RF-Exposure-Info-Shenzhen-Dongzhi-2begy-vvabc-ultra2-ex-1-7

FCC ID: 2BEGY-VVABC-ULTRA2

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.

BT3.0

Channel Modulation Freq.
(GHz)

Conduct ed power Conducte Tune-up
(dBm) d power power (mW) (dBm)

Max tune-up power (dBm )

2.402 1.88

1.54

2±1

3

GFSK 2.441 1.93

1.56

2±1

3

2.480 2.12

1.63

2±1

3

2.402 4.96

/4DQPSK

2.441

3.57

2.480 3.06

3.13

4.5±1

5.5

2.28

3.5±1

4.5

2.02

3.5±1

4.5

2.402

5.5

3.55

5±1

6

8-DQPSK 2.441 4.17

2.61

4.5±1

5.5

2.480

3.9

2.45

4.5±1

5.5

Max tune-up power (m W)
2.00 2.00 2.00 3.55 2.82 2.82 3.98 3.55 3.55

Distance Result

SAR

(mm) calculation Exclusion

threshold

<5

0.61847

3.00

<5

0.62347

3.00

<5

0.62843

3.00

<5

1.09981

3.00

<5

0.88067

3.00

<5

0.88768

3.00

<5

1.23400

3.00

<5

1.10870

3.00

<5

1.11752

3.00

SAR test exclus ion
YES YES YES YES YES YES YES YES YES

BLE

Channel Modulation Freq.
(GHz)

Conduct ed power Conducte Tune-up
(dBm) d power power (mW) (dBm)

Max tune-up power (dBm )

2.402 2.02

1.59

2±1

3

BLE-1M 2.440 1.97

1.57

2±1

3

2.480

2.1

1.62

2±1

3

2.402 1.99

1.58

2±1

3

BLE-2M 2.440

2

1.58

2±1

3

2.480 2.12

1.63

2±1

3

Max tune-up power
(m W)
2.00 2.00 2.00 2.00 2.00 2.00

Distance Result

SAR

(mm) calculation Exclusion

threshold

<5

0.61847

3.00

<5

0.62334

3.00

<5

0.62843

3.00

<5

0.61847

3.00

<5

0.62334

3.00

<5

0.62843

3.00

SAR test exclus ion
YES YES YES YES YES YES

Conclusion: For the max result : 1.23400  3.0 for 1g SAR, SAR is not required.

Signature:

Date: 2024-03-15

NAME AND TITLE (Please print or type): Alex li /Manager
COMPANY (Please print or type): Shenzhen NTEK Testing Technology Co., Ltd./ 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street Bao'an District, Shenzhen P.R. China.



Related FCC IDs:

• 2BEGY-VVABC-ULTRA2 - Shenzhen Dongzhi Technology Co., Ltd. SMART WATCH [-VVABC-ULTRA2]
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