zmp

RF EXPOSURE WPC

SHEN ZHEN GTL TECHNOLOGY CO .,LTD CW530 5 in 1 Charging Station 2A4TT-CW530 2A4TTCW530 cw530

PDF Viewing Options

Not Your Device? Search For Manuals or Datasheets below:


File Info : application/pdf, 7 Pages, 2.05MB

Document DEVICE REPORTGetApplicationAttachment.html?id=7389227
Page 1 of 7

FCC ID:2A4TT-CW530

RF Exposure Evaluation

1 Measuring Standard
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. According KDB680106 D01: KDB 680106 D01 Wireless Power Transfer v04.

2 Requirements
According to the item 3 of KDB 680106 D01v04: Inductive wireless power transfer applications that meet all of the following requirements are excluded from submitting an RF exposure evaluation. (1) Mobile Device and Portable Device Configurations (2) Equipment Authorization Procedures for Devices Operating at Frequencies Below 4 MHz (3) The aggregate H-field strengths anywhere at or beyond 15 cm surrounding the device, and 20 cm away from the top surface.

Limits The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) radiation as specified in 1.1307(b) Limits for Maximum Permissible Exposure (MPE)

3 Test Setup

Page 2 of 7

FCC ID:2A4TT-CW530

4 Test Procedure
1) The RF exposure test was performed in anechoic chamber. 2) The measurement probe was placed at test distance (15 cm from all sides and 20 cm from the top) which is between the edge of the charger and the geometric center of probe. 3) The highest emission level was recorded and compared with limit as soon as measurement of each points (A, B, C, D, E) were completed. 4) The EUT was measured according to the dictates of KDB 680106 D01 Wireless Power Transfer v04. RemarkThe EUT's test position A, B, C, D and E is valid for the E and H field measurements.

5 Equipment Approval Considerations
The EUT does comply with KDB 680106 D01 as follow table.

Requirements of KDB 680106 D01

Yes / No Description

Mobile Device and Portable Device Configurations

Yes

Mobile Device

Equipment Authorization Procedures for

Yes

The device operate in the frequency range

Devices Operating at Frequencies Below 4 MHz

113kHz-205kHz, 300kHz-350kHz

RF Exposure compliance may be ensured only

for a minimum separation distance that is greater

than 20 cm, while use conditions at smaller

Yes

distances can still be considered unlikely.

The EUT H-field strengths at 15 cm surrounding the device and 20 cm above the top surface.

Page 3 of 7

FCC ID:2A4TT-CW530

6 Description of the test mode Equipment under test was operated during the measurement under the following conditions:

Test Description
Mode

AC Adapter + EUT + Wireless charger receiver+ Earphone+

Mode 1 Watch

Record

Mode 2 AC Adapter + EUT + Wireless charger receiver+ Earphone Mode 3 AC Adapter + EUT + Wireless charger receiver+Watch Mode 4 AC Adapter + EUT + Earphone +Watch Mode 5 AC Adapter + EUT + Wireless charger receiver Mode 6 AC Adapter + EUT + Earphone Mode 7 AC Adapter + EUT + Watch Mode 8 Test the EUT in idle mode.

Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested

Note: 1. All test modes were pre-tested, but we only recorded the worst case in this report.

2. Unfolded and folded mode were tested, but we only recorded the worst case.

7 Peripheral List

N Equipment
o.

Manufacturer

1

Adapter

HNT

Wireless

2

charger

SLY

receiver

3 Earphone

PocBuds

Model No. HNT-QC530

Serial No. N/A

15W

N/A

K6

N/A

Power cord N/A N/A N/A

signal cable N/A N/A N/A

4

Watch

Apple

S6

N/A

N/A

N/A

8 Test Instruments list

Test Equipment

Manufacturer

Electric and Magnetic Field Analyzer

Narda

Model No. EHP-200A

SN. 180ZX10505

Cal.Date (mm-dd-yy)
21.06.2022

Cal.Due date (mm-dd-yy)
20.06.2024

Page 4 of 7
9 Test Result
E-Filed Strength at 15 cm from the edges surrounding the EUT (V/m)

FCC ID:2A4TT-CW530

Unit

Test mode

Test

Test

Test

Test

Test

50% Limits

TM1

Position Position Position Position Position Limits

A

B

C

D

E

(V/m) (V/m)

V/m Phone port 107.533 128.390 128.461 122.182 111.353 307 614

V/m Earphone port 111.233 104.856 110.553 114.166 106.586 307 614

V/m Watch port 79.001 103.106 99.971 97.526 81.221 307 614

H-Filed Strength at 15 cm from the edges surrounding the EUT (A/m)

Unit

Test mode

Test

Test

Test

Test

Test 50% Limits

TM1

Position Position Position Position Position Limits

A

B

C

D

E

(A/m) (A/m)

A/m Phone port 0.376 0.431 0.414 0.388 0.359 0.815 1.63

A/m Earphone port 0.404 0.389 0.352 0.374 0.376 0.815 1.63

A/m Watch port 0.386 0.363 0.493 0.423 0.325 0.815 1.63

H-Filed Strength at 20 cm from the top of the EUT (A/m)

Unit

Test mode

Test

TM1

Position E

A/m

Phone port

0.361

A/m

Earphone port

0.382

A/m

Watch port

0.361

50% Limits (A/m)
0.815 0.815 0.815

Note: All test modes were pre-tested, but we only recorded the worst case in this report.

Limits (A/m)
1.63 1.63 1.63

10 Test Setup photo

Page 5 of 7

FCC ID:2A4TT-CW530

Test Position A-15cm from the edge of EUT to the geometric center of the probe

Test Position B-15cm from the edge of EUT to the geometric center of the probe

Page 6 of 7

FCC ID:2A4TT-CW530

Test Position C-15cm from the edge of EUT to the geometric center of the probe Test Position D-15cm from the edge of EUT to the geometric center of the probe

Page 7 of 7

FCC ID:2A4TT-CW530

Test Position E-15cm from the edge of EUT to the geometric center of the probe
Test Position E-20cm from the edge of EUT to the geometric center of the probe
***End of report***



Related FCC IDs:

Search Any Device: