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RF Exposure Info

REOLINK TECHNOLOGY PTE. LTD. 2503G WiFi module 2BN5S-2503G 2BN5S2503G 2503g

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Document DEVICE REPORTGetApplicationAttachment.html?id=8365203 
FCC §15.247 (i), §2.1091 ­ RF Exposure

FCC ID: 2BN5S-2503G

Applied procedures / limit According to FCC §15.247(i) and §1.1307(b)(1), 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 level in excess of the Commission's guidelines.

Limits for Occupational / Controlled Exposure

Frequency Range (MHz)

Electric Field Strength (E)
(V/m)

Magnetic Field Strength (H) (A/m)

Power Density (S) (mW/ cm2)

Averaging Time |E|2,|H|2or S
(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

Note:  is frequency in MHz

* = Power density limit is applicable at frequencies greater than 100 MHz

Limits for General Population / Uncontrolled Exposure

Frequency Range (MHz)
0.3-1.34 1.34-30 30-300 300-1500 1500-100,000

Electric Field Strength (E)
(V/m)
614 824/f
27.5

Magnetic Field Strength (H) (A/m)

Power Density (S) (mW/ cm2)

Averaging Time |E|2,|H|2 or S
(minutes)

1.63

(100)*

30

2.19/f

(180/f)*

30

0.073

0.2

30

F/1500

30

1.0

30

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

MPE PREDICTION Predication of MPE limit at a given distance, Equation from OET Bulletin 65, Edition 97-01

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, R=0.2m
TEST RESULTS

Tune up Produce power

Maximum peak output power (dBm)

Output power to antenna (mW)

Antenna Gain
(numeric)

Power Density (S)
(mW/ cm2)

Limit (mW/ cm2)

WIFI 2.4G

11±1

12

3.27

15.85

0.010314

1

(5.15dBi)

WIFI 5.1G

12±1

13

4.97

19.95

0.019731

1

(6.96dBi)

WIFI 5.3G

13±1

14

4.97

25.12

0.024844

1

(6.96dBi)

WIFI 5.6G

15±1

16

4.97

39.81

0.039373

1

(6.96dBi)

WIFI 5.8G

12±1

13

4.97

19.95

0.019731

1

(6.96dBi)

The report only evaluated the antenna values of the maximum antenna gain.

Result
Pass Pass Pass Pass Pass

Simultaneous transmitting evaluation: WIFI and Bluetooth

Mode

Power Density (S) (mW/ cm2)

Simultaneous transmitting (mW/ cm2)

2.4G WIFI 5G WIFI

0.010314 0.039373

0.049687

Simultaneous transmitting=0.010314/1+0.039373/1=0.049687

Limit (mW/ cm2)
1

For the max result : 0.049687 1.0, compliance with FCC's RF Exposure

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