RF Exposure Information

FCC ID: Y4N-70290T

RF Exposure Info

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FCCID_1621136

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ111212001-00A

FCC §15.247 (i) & §2.1091 - MAXIMUM PERMISSIBLE EXPOSURE (MPE)
Standard Applicable
According to FCC subpart 15.247 (i) and subpart 1.1307 (b)(1), 2.1091 systems operating under the
provisions of this section shall be operated in a manner that ensures the public is not exposed to RF
energy level in excess of the communication guidelines.

Limits for General Population/Uncontrolled Exposure

Limits for General Population/Uncontrolled Exposure
Frequency Electric Field Magnetic Field Power
Averaging Time
Range Strength Strength Density
(Minutes)
(MHz) (V/m) (A/m) (mw/cm2)
0.3-1.34 614 1.63 *(100) 30
2
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

f = frequency in MHz
* = Plane-wave equivalent power density

Test Data
Predication of MPE limit at a given distance

S = PG/4πR²

Where:
S = power density (in appropriate units, e.g. mW/cm2)
P = power input to the antenna (in appropriate units, e.g., mW).
G = power gain of the antenna in the direction of interest relative to an isotropic radiator,
the power gain factor, is normally numeric gain.
R = distance to the center of radiation of the antenna (appropriate units, e.g., cm)

Maximum peak output power at antenna input terminal: 14.96 (dBm)
Maximum peak output power at antenna input terminal: 31.33(mW)
Prediction distance: >20 (cm)
Predication frequency: 2402.784 (MHz)
Antenna Gain (typical): 0 (dBi)
Maximum Antenna Gain: 1 (numeric)
The worst case is power density at predication frequency at 20 cm: 0.00623 (mW/cm2)
MPE limit for general population exposure at prediction frequency: 1.0 (mW/cm2)

Result:

The device meets the MPE at 20 cm distance.

FCC Part 15.247 Page 9 of 42

Document Created: 2012-01-13 14:58:53
Document Modified: 2012-01-13 14:58:53

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