According to §15

Benjamin

RF Exposure Info

Sariana LLC ST-LKCF VEGAN-LEATHER FINDALL KEYCHAIN ZE9-ST-LKCF ZE9STLKCF st lkcf

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Document DEVICE REPORTGetApplicationAttachment.html?id=8199753
FCC ID: ZE9-ST-LKCF

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.

BT

Conduct

Max

Channel ed Conducte Tune-up tune-up

Modulation Freq. power d power power power

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

GFSK(1M bps)
GFSK(2M bps)

2.480 2.480

-1.1 -1.08

0.78 0.78

-1±1 -1±1

0.00 0.00

Max tune-up power
(mW)
1.00
1.00

Result SAR

Distance (mm)

calculatio

Exclusion

n

threshold

<5

0.31496

3.00

<5

0.31496

3.00

SAR test exclusion
YES YES

Conclusion: For the max result : 0.314963, the SAR testing is not required.



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