MPE

FCC ID: PD5BSGIR

RF Exposure Info

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FCCID_826501

FCC TEST REPORT Report No.: FR761505

Appendix A. Maximum Permissible Exposure

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FCC ID : PD5BSGIR

FCC TEST REPORT Report No.: FR761505

1. Maximum Permissible Exposure
1.1. Applicable Standard

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 levels in excess limit for maximum permissible exposure. In
accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as a mobile
device whereby a distance of 0.2 m normally can be maintained between the user and the device.
(A) Limits for Occupational / Controlled Exposure
Averaging Time
Frequency Range Electric Field Magnetic Field Power Density (S)
|E|²,|H|² or S
(MHz) Strength (E) (V/m) Strength (H) (A/m) (mW/ cm²)
(minutes)
0.3-3.0 614 1.63 (100)* 6
3.0-30 1842 / f 4.89 / f (900 / f)* 6
30-300 61.4 0.163 1.0 6
300-1500 F/300 6
1500-100,000 5 6
(B) Limits for General Population / Uncontrolled Exposure
Averaging Time
Frequency Range Electric Field Magnetic Field Power Density (S)
|E|²,|H|² or S
(MHz) Strength (E) (V/m) Strength (H) (A/m) (mW/ cm²)
(minutes)
0.3-1.34 614 1.63 (100)* 30
1.34-30 824/f 2.19/f (180/f)* 30
30-300 27.5 0.073 0.2 30
300-1500 F/1500 30
1500-100,000 1.0 30
Note: f = frequency in MHz ; *Plane-wave equivalent power density

1.2. MPE Calculation Method

30 × P × G E2
E (V/m) ＝ Power Density: Pd (W/m²) ＝
d 377
E ＝ Electric field (V/m)
P ＝ Peak RF output power (W)
G ＝ EUT Antenna numeric gain (numeric)
d ＝ Separation distance between radiator and human body (m)
The formula can be changed to

Pd ＝
30 × P × G
377 × d 2
From the peak EUT RF output power, the minimum mobile separation distance, d=0.2m, as well as the gain of
the used antenna, the RF power density can be obtained.

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FCC ID : PD5BSGIR

FCC TEST REPORT Report No.: FR761505

1.3. Calculated Result and Limit

Antenna Type : Dipole
Max Conducted Power for IEEE 802.11b/g : 17.38dBm
Limit of
Peak Output Power
Antenna Gain Antenna Gain Peak Output Power
Power Density (S) Test Result
(dBi) (numeric) Power ( mW ) Density (S)
(dBm) (mW/cm²)
(mW/cm²)
2 1.5849 17.3800 54.7016 0.017256 1 Complies

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FCC ID : PD5BSGIR

Document Created: 2007-08-02 14:56:08
Document Modified: 2007-08-02 14:56:08

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