MPE (FCC)

10108060

MPE

X-Media Tech, Inc GROMVL VLine 2AJFZ-GROMVL 2AJFZGROMVL gromvl

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Document DEVICE REPORTGetApplicationAttachment.html?id=4600942 
FCC ID: 2AJFZ-GROMVL

Maximum Permissible Exposure (MPE)
Standard Applicable
According to §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensure that the public is not exposed to radio frequency energy level in excess of the Commission's guideline.
According to §1.1310 and §2.1091 RF exposure is calculated.
Limits for Maximum Permissive Exposure (MPE)

Frequency Range (MHz)
0.3-1.34 1.34-30 30-300 300-1500 1500-15000

Electric Field Strength (V/m)

Magnetic Field Strength (A/m)

Power Density (mW/cm2)

Limits for General Population/Uncontrolled Exposure

614

1.63

*(100)

824/f

2.19/f

*(180/f2 )

27.5

0.073

0.2

/

/

F/1500

/

/

1.0

Averaging Time (minute)
30 30 30 30 30

F = frequency in MHz * = Plane-wave equipment power density

International Standards Laboratory

FCC ID: 2AJFZ-GROMVL

FCC

Maximum Permissible Exposure (MPE) Evaluation: The worst case of Average power

Power measurement: refer to Part15.247 report for details.

Wi-Fi

Frequency Range (MHz)

Channels

Peak / Average Power

Modulation Technology

802.11b 2412 ­ 2462(DTS)

11

18.89dBm (PK)

DSSS

802.11g 2412 ­ 2462(DTS)

11

HT20

802.11n

11

2412 ­ 2462(DTS)

23.40dBm (PK) 23.18dBm (PK)

OFDM

Maximum output power at antenna input terminal: 23.4

(dBm)

Maximum output power at antenna input terminal: 218.7761624 (mW)

Tune-Up power Tolerance: 0.5

dB

Duty cycle: 100

(%)

Maximum Pav : 245.4708916 (mW)

Antenna gain (typical): 3

(dBi)

Maximum antenna gain: 1.995262315 (numeric)

Prediction distance: 20

(cm)

MPE limit for uncontrolled exposure at prediction 1

(mW/cm^2)

Power density at predication frequency at 20 (cm) 0.0974878 (mW/cm^2)

Prediction of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 S=PG/4R2 Where: S = Power density
P = Power input to antenna G = Power gain of the antenna in the direction of interest relative to an isotropic radiator R = Distance to the center of radiation of the antenna

Measurement Result: The predicted power density level at 20 cm is 0.0974878 mW/cm2. This is below the uncontrolled exposure limit of 1 mW/cm2.

International Standards Laboratory

FCC ID: 2AJFZ-GROMVL

BT mode: Maximum Permissible Exposure (MPE) Evaluation: The worst case of Average power Power measurement: refer to Part15.247 report for details.

BDR Mode
Frequency (MHz)
Low Mid High

Peak Reading Power (dBm) -1.33
-1.00 -1.41

Cable Loss
2.50 2.50 2.50

Output Power (dBm)
1.17 1.50 1.09

Output Power (W)
0.00131 0.00141 0.00128

Limit (W)
1 1 1

Maximum output power at antenna input terminal: 1.5

(dBm)

Maximum output power at antenna input terminal: 1.412537545 (mW)

Tune-Up power Tolerance: 1

dB

Duty cycle: 100

(%)

Maximum Pav : 1.77827941 (mW)

Antenna gain (typical): 3

(dBi)

Maximum antenna gain: 1.995262315 (numeric)

Prediction distance: 20

(cm)

MPE limit for uncontrolled exposure at prediction 1

(mW/cm^2)

Power density at predication frequency at 20 (cm) 0.0007062 (mW/cm^2)

Prediction of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 S=PG/4R2 Where: S = Power density
P = Power input to antenna G = Power gain of the antenna in the direction of interest relative to an isotropic radiator R = Distance to the center of radiation of the antenna

Measurement Result: The worst power density is 0.0007062 mW/cm^2 which is less than 1 mW/cm^2.

International Standards Laboratory

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