MPE

FCC ID: XKH-MCG-W160

RF Exposure Info

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FCCID_1144310

FCC ID: XKH-MCG-W160

MPE Calculations for GSM 850
The EUT will only be used with a separation of 20 centimeters or greater between the antenna and
the body of the user. The MPE calculation for this exposure is shown below.

The peak radiated output power (ERP) was tested according to ANSI/TIA/EIA-603-C-2004.
The maximum peak radiated output power (ERP) is recorded and EIRP is calculated as follows.

ERP = 32.45dBm (1758 mW)
EIRP = ERP + 2.15 dB = 32.45 + 2.15 = 34.60 (2884 mW)

Power density at the specific separation:
Where,
S = (EIRP* Duty Cycle)/(4R2π) S = Maximum power density (mW/cm2)
S = (2884*0.5) / (4 * 202 * π) EIRP = Maximum Peak radiated output power(mW)
R = Distance to the center of the radiation of the antenna
S = 0.287 mW/cm2 (20cm)
Duty Cycle(the worst case) = Duty Cycle is 0.5 for GPRS
multislot class 12 operation supporting 4
uplink transmission time slots.

Conclusion:
The Maximum permissible exposure (MPE) for the general Population/Uncontrolled is
0.55 mW/cm2 (=f/1500=824/1500).The power density at 20cm does not exceed the 0.55 mW/cm2.
Therefore, the exposure condition of this EUT is compliant with FCC rules.

FCC ID: XKH-MCG-W160

MPE Calculations for GSM 1900
The EUT will only be used with a separation of 20 centimeters or greater between the antenna and
the body of the user. The MPE calculation for this exposure is shown below.

The peak radiated output power (EIRP) was tested according to ANSI/TIA/EIA-603-C-2004.
The maximum peak radiated output power (EIRP) is recorded as follows:

EIRP = 28.98 dBm (791 mW)

Power density at the specific separation:
Where,
S = (EIRP* Duty Cycle)/(4R2π) S = Maximum power density (mW/cm2)
S = (791*0.5) / (4 * 202 * π) EIRP = Maximum Peak radiated output power(mW)
R = Distance to the center of the radiation of the antenna
S = 0.079 mW/cm2 (20cm)
Duty Cycle(the worst case) = Duty Cycle is 0.5 for GPRS
multislot class 12 operation supporting 4 uplink
transmission time slots.

Conclusion:
The Maximum permissible exposure (MPE) for the general Population/Uncontrolled is 1 mW/cm2.
The power density at 20cm does not exceed the 1 mW/cm2.
Therefore, the exposure condition of this EUT is compliant with FCC rules.

Document Created: 2009-07-17 19:59:10
Document Modified: 2009-07-17 19:59:10

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