MPE

FCC ID: QOBRGBXYZA

RF Exposure Info

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FCCID_3380078

Calculation and sample for Confirmation
Dear Reviewer,
As specified in Table 1B of 47 CFR 1.1310 – Limits for Maximum Permissible Exposure
(MPE), Limits for General Population/Uncontrolled Exposure:

Frequency range (MHz) Power density (mW/cm²)

300 – 1,500 f/1500

1,500 – 100,000 1.0

The RF Exposure level is calculated using the general equation:
S = PG/ 4πR2
The EUT antenna gain is 2.0dBi
R = 3 cm

π = 3.1416
The power density limit is:
For 1,500 – 100,000MHz: 1.0 mW/cm2
Solving for S, the power density at 3 cm is

tune up power is 8.5+1dBm=9.5dbm

Frequency(MHz) dBm tune up mW G(dBi) Numeric R(cm) S(mW/cm2) Limit(mW/cm2)
2421 8.65 9.5 8.91 2.0 1.6 2 0.28101 1
2442 8.79 9.5 8.91 2.0 1.6 2 0.28101 1
2464 8.46 9.5 8.91 2.0 1.6 2 0.28101 1

So, the power density is kept.
Please contact us if you have any additional questions.
Best Regards!

Shanghai Skylabs Co., Ltd.
AnPeng

Document Created: 2017-04-18 16:11:04
Document Modified: 2017-04-18 16:11:04

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