FCC RF Exposure-MPE

Leax Arkivator Telecom USA Inc. FT205L 2AVFN-FT205L 2AVFNFT205L ft205l

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RF Exposure evaluation

FCC ID: 2AVFN-FT205L

Exposure category: General population/uncontrolled environment EUT Type: Production Unit Device Type: Mobile Device

1. Reference

According to §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. According to §1.1310 and §2.1091 RF exposure is calculated. KDB447498 D01: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies

2. Limit

Limits for Maximum Permissible Exposure (MPE)/Controlled Exposure

Frequency

Electric Field Magnetic Field Power Density

Range(MHz) Strength(V/m) Strength(A/m)

(mW/cm²)

Limits for Occupational/Controlled Exposure

0.3 ­ 3.0

614

1.63

(100) *

3.0 ­ 30

1842/f

4.89/f

(900/f2)*

30 ­ 300

61.4

0.163

1.0

300 ­ 1500

/

/

f/300

1500 ­ 100,000

/

/

5

Averaging Time (minute)
6 6 6 6 6

Limits for Maximum Permissible Exposure (MPE)/Uncontrolled Exposure

Frequency

Electric Field Magnetic Field Power Density

Range(MHz) Strength(V/m) Strength(A/m)

(mW/cm²)

Limits for Occupational/Controlled Exposure

0.3 ­ 3.0

614

1.63

(100) *

3.0 ­ 30

824/f

2.19/f

(180/f2)*

30 ­ 300

27.5

0.073

0.2

300 ­ 1500

/

/

f/1500

1500 ­ 100,000

/

/

1.0

Averaging Time (minute)
30 30 30 30 30

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

3. MPE Calculation Method
Predication 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

4. Antenna Information

FT205L can only use antennas certificated as follows provided by manufacturer;

Antenna No.

Model No. of antenna:

Type of antenna:

Gain of the antenna (Max.)

Frequency range:

Band 2: 8.000dBi

Band 4: 5.000dBi

Band 5: 9.416dBi

LTE

/

External antenna

Band 12: 8.734dBi Band 13: 9.173dBi

Band 14: 9.255dBi

Band 66: 5.000dBi

Band 71: 8.545dBi

FDD Band II: 8.000dBi

WCDMA

/

External antenna

FDD Band IV: 5.000dBi

FDD Band V: 9.416dBi

5. Standalone MPE Result
As declared by the Applicant, the EUT is a wireless device used in a fix application, at least 20 cm from any body part of the user or nearby persons; from the maximum EUT RF output power, the minimum separation distance, r =20cm, as well as the gain of the used antenna is refer to section 4, the RF power density can be obtained.

Modulation Type
WCDMA B2 WCDMA B4 WCDMA B5 LTE Band 2 LTE Band 4 LTE Band 5

Output power
dBm mW
25.0 316.2278 25.0 316.2278 25.0 316.2278 25.0 316.2278 25.0 316.2278 25.0 316.2278

Antenna Gain (dBi) 8.0 5.0 9.416 8.0 5.0 9.416

Antenna Gain
(linear) 6.3096 3.1623 8.7418 6.3096 3.1623 8.7418

MPE (mW/cm2)
0.397 0.199 0.550 0.397 0.199 0.550

MPE Limits (mW/cm2) 1.0000 1.0000 0.550 1.0000 1.0000 0.550

LTE Band 12 LTE Band 13 LTE Band 14 LTE Band 66 LTE Band 71

25.0 316.2278 25.0 316.2278 25.0 316.2278 25.0 316.2278 25.0 316.2278

8.734 9.173 9.255
5.0 8.545

7.4714 8.2661 8.4236 3.1623 7.1532

0.470 0.520 0.530 0.199 0.450

0.470 0.520 0.530 1.0000 0.450

Remark: 1. Output power (Peak) including turn-up tolerance; 2. MPE evaluate distance is 20cm from user manual provide by manufacturer.
6. Conclusion
The measurement results comply with the FCC Limit per 47 CFR 2.1091 for the uncontrolled RF Exposure of mobile device.
----------------THE END OF REPORT---------------



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