EN55022&24 report

leon chen

RF Exposure

Xiamen Lujiang Technology Co., Ltd. A46 A4 Thermal Printer 2A74AA46 2A74AA46 a46

PDF Viewing Options

Not Your Device? Search For Manuals or Datasheets below:


File Info : application/pdf, 8 Pages, 1.13MB

Document DEVICE REPORTGetApplicationAttachment.html?id=7376594
- Page 1 of 8 -

Report No.: HB20240511004E-03

RF EXPOSURE Test Report

Product: Portable Thermal Printer Trade Mark: N/A Model Number: A46
FCC ID: 2A74AA46
Prepared for
Xiamen Lujiang Technology Co., Ltd. Room 601-2, No.63-1, Wanghai Road, Software Park Phase II, Torch
Hi-Tech Zone, Xiamen, China
Prepared by
Shenzhen HongBiao Certification& Testing Co., Ltd Room 102, 201, Building 2, Yuanwanggu RFID Industrial Park, Tongguan Road, Tianliao Community, Yutang Street, Guangming District, Shenzhen,
China Tel.: +86-755-2998 9321 Fax.: +86-755-2998 5110
Website: http://www.sz-hongbiao.com

Add:Room 102, 201, Building 2, Yuanwanggu RFID Industrial Park, Tongguan Road, Tianliao Community, Yutang Street, Guangming District, Shenzhen,China

Tel: (86-755) 29989321

Fax: (86-755) 29985110

Web:www.sz-hongbiao.com

- Page 2 of 8 -

Report No.: HB20240511004E-03

Table of Contents
1 GENERAL DESCRIPTION ................................................................................................................................... 5
1.1 DESCRIPTION OF EUT ................................................................................................................................................ 5 1.2 TEST MODE.............................................................................................................................................................. 5 1.3 TEST SETUP .............................................................................................................................................................. 5 1.4 ANCILLARY EQUIPMENT .............................................................................................................................................. 5
2 TEST FACILITIES AND ACCREDITATIONS ............................................................................................................ 6
2.1 TEST LABORATORY ..................................................................................................................................................... 6 2.2 ENVIRONMENTAL CONDITIONS ..................................................................................................................................... 6 2.3 MEASUREMENT UNCERTAINTY ..................................................................................................................................... 6 2.4 TEST SOFTWARE ........................................................................................................................................................ 6
3 RF EXPOSURE.................................................................................................................................................. 7
3.1 STANDALONE SAR TEST EXCLUSION CONSIDERATIONS........................................................................................................ 7 4.1.1. Limit ............................................................................................................................................................ 7 4.1.2. Test Procedures ........................................................................................................................................... 7 4.1.3. Test Result ................................................................................................................................................... 8

Add:Room 102, 201, Building 2, Yuanwanggu RFID Industrial Park, Tongguan Road, Tianliao Community, Yutang Street, Guangming District, Shenzhen,China

Tel: (86-755) 29989321

Fax: (86-755) 29985110

Web:www.sz-hongbiao.com

- Page 3 of 8 -

Report No.: HB20240511004E-03

TEST RESULT CERTIFICATION

Applicant's Name................. : Xiamen Lujiang Technology Co., Ltd. Address ................................. : Room 601-2, No.63-1, Wanghai Road, Software Park Phase II,
Torch Hi-Tech Zone, Xiamen, China Manufacturer's Name .......... : Xiamen Lujiang Technology Co., Ltd.
Room 601-2, No.63-1, Wanghai Road, Software Park Phase II, Address ................................. :
Torch Hi-Tech Zone, Xiamen, China Product description Product name ........................ : Portable Thermal Printer
Model Number ....................... : A46 Standards ............................. : N/A
Test procedure..................... : KDB 447498 D01 General RF Exposure Guidance v06
This device described above has been tested by Shenzhen HongBiao Certification& Testing Co., Ltd and the test results show that the equipment under test (EUT) is in compliance with the EMC requirements. And it is applicable only to the tested sample identified in the report.

Date of Test ............................................: Date (s) of performance of tests .............: Test Result...............................................:

May 11, 2024~May 14, 2024 Pass

Testing Engineer

:

(Zoe Su)

Technical Manager :

(Mark Chen)

Authorized Signatory :

(Leo Su)

Add:Room 102, 201, Building 2, Yuanwanggu RFID Industrial Park, Tongguan Road, Tianliao Community, Yutang Street, Guangming District, Shenzhen,China

Tel: (86-755) 29989321

Fax: (86-755) 29985110

Web:www.sz-hongbiao.com

Revised No. 01

- Page 4 of 8 -

Report No.: HB20240511004E-03

Revision History
Date of Issue Jun. 03, 2024

Description Original

Add:Room 102, 201, Building 2, Yuanwanggu RFID Industrial Park, Tongguan Road, Tianliao Community, Yutang Street, Guangming District, Shenzhen,China

Tel: (86-755) 29989321

Fax: (86-755) 29985110

Web:www.sz-hongbiao.com

- Page 5 of 8 -

Report No.: HB20240511004E-03

1 General Description
1.1 Description of EUT

Product name: Model name: Series Model:
Different of series model: Operation frequency: Modulation type: Bit Rate of transmitter: Antenna type: Antenna gain: Max. output power: Hardware version: Software version: Battery: Power supply: Adapter information:
1.2 Test Mode

Portable Thermal Printer
A46 ITP05, A46H, A41, MP-8018, MP-8018T, LJA4A46A, A49, A49H, A42, A42H, A43, A43H Except for the appearance color, all models have the same circuit and module. 2402-2480MHz GFSK 1 Mbps PCB Antenna -0.93dBi BLE:-1.92dBm, BT: -3.56dBm V1.0 V1.0 DC 7.4V, 2600mAh, 19.24Wh DC 7.4V from Battery N/A

Pretest Test Mode

Description of Mode

1

TX

2

/

3

/

1.3 Test Setup

See photographs of the test setup in the report for the actual setup and connections between EUT and support equipment.
1.4 Ancillary Equipment

Equipment

Model

S/N

Manufacturer

/

/

/

/

Add:Room 102, 201, Building 2, Yuanwanggu RFID Industrial Park, Tongguan Road, Tianliao Community, Yutang Street, Guangming District, Shenzhen,China

Tel: (86-755) 29989321

Fax: (86-755) 29985110

Web:www.sz-hongbiao.com

- Page 6 of 8 -

Report No.: HB20240511004E-03

2 Test Facilities and Accreditations
2.1 Test Laboratory

Test Site
Test Site Location
Telephone: Fax: FCC Registration No.: A2LA Certificate No.:

Shenzhen HongBiao Certification& Testing Co., Ltd Room 102, 201, Building 2, Yuanwanggu RFID Industrial Park, Tongguan Road, Tianliao Community, Yutang Street, Guangming District, Shenzhen, China (86-755) 2998 9321
(86-755) 2998 5110
CN1341
6765.01

2.2 Environmental Conditions

During the measurement the environmental conditions were within the listed ranges:

Temperature:

15ºC~35ºC

Relative Humidity:

20%~75%

Air Pressure:

98kPa~101kPa

2.3 Measurement Uncertainty

The reported uncertainty of measurement y ± U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %.

Measurement Frequency Range RF frequency
RF power, conducted Temperature Humidity

U(dB) 2x 10-5 ± 0.57 dB ±1 degree ±5 %

Note

2.4 Test Software
Software name Conducted test system

Manufacturer MWRF-test

Model MTS 8310

Version V2.0.0

Add:Room 102, 201, Building 2, Yuanwanggu RFID Industrial Park, Tongguan Road, Tianliao Community, Yutang Street, Guangming District, Shenzhen,China

Tel: (86-755) 29989321

Fax: (86-755) 29985110

Web:www.sz-hongbiao.com

- Page 7 of 8 -

Report No.: HB20240511004E-03

3 RF Exposure

3.1 Standalone SAR test exclusion considerations

4.1.1.

Limit

3.0 for 1g SAR.

4.1.2.

Test Procedures

Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition(s), listed below, is (are) satisfied.
These test exclusion conditions are based on source-based time-averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for tune-up tolerance, and the minimum test separation distance required for the exposure conditions.
The minimum test separation distance defined in 4.1 f) is determined by the smallest distance from the antenna and radiating structures or outer surface of the device, according to the host form factor, exposure conditions and platform requirements, to any part of the body or extremity of a user or bystander.
To qualify for SAR test exclusion, the test separation distances applied must be fully explained and justified, typically in the SAR measurement or SAR analysis report, by the operating configurations and exposure conditions of the transmitter and applicable host platform requirements, according to the required published RF exposure KDB procedures.
When no other RF exposure testing or reporting are required, a statement of justification and compliance must be included in the equipment approval, in lieu of the SAR report, to qualify for SAR test exclusion.
When required, the device specific conditions described in the other published RF exposure KDB procedures must be satisfied before applying these SAR test exclusion provisions.

a) For 100 MHz to 6 GHz and test separation distances  50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following:

[(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] · [f(GHz)]  3.0 for 1-g SAR, and  7.5 for 10-g extremity SAR, where

 f(GHz) is the RF channel transmit frequency in GHz
 Power and distance are rounded to the nearest mW and mm before calculation
 The result is rounded to one decimal place for comparison
 The values 3.0 and 7.5 are referred to as numeric thresholds in step b) below
The test exclusions are applicable only when the minimum test separation distance is  50 mm, and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to 4.1 f) is applied to determine SAR test exclusion. b) For 100 MHz to 6 GHz and test separation distances > 50 mm, the 1-g and 10-g SAR test
exclusion thresholds are determined by the following (also illustrated in Appendix B):

1) {[Power allowed at numeric threshold for 50 mm in step a)] + [(test separation distance ­ 50 mm)·(f(MHz)/150)]} mW, for 100 MHz to 1500 MHz

2) {[Power allowed at numeric threshold for 50 mm in step a)] + [(test separation distance ­ 50 mm)·10]} mW, for > 1500 MHz and  6 GHz

c) For frequencies below 100 MHz, the following may be considered for SAR test exclusion (also

illustrated in Appendix C):

Add:Room 102, 201, Building 2, Yuanwanggu RFID Industrial Park, Tongguan Road, Tianliao Community, Yutang Street, Guangming District, Shenzhen,China

Tel: (86-755) 29989321

Fax: (86-755) 29985110

Web:www.sz-hongbiao.com

- Page 8 of 8 -

Report No.: HB20240511004E-03

1) For test separation distances > 50 mm and < 200 mm, the power threshold at the corresponding test separation distance at 100 MHz in step b) is multiplied by [1 + log(100/f(MHz))]
2) For test separation distances  50 mm, the power threshold determined by the equation in c) 1) for 50 mm and 100 MHz is multiplied by ½
3) SAR measurement procedures are not established below 100 MHz.
When SAR test exclusion cannot be applied, a KDB inquiry is required to determine SAR evaluation requirements for any SAR test results below 100 MHz to be acceptable.

4.1.3.

Test Result

We use 5mm as separation distance to calculated. BLE(Worst case):

Transmit Frequency
(GHz)

Mode

Measured Power (dBm)

Tune-up power (dBm)

2.402

GFSK

-1.92

(-2)±1

Max tune-up power(dBm)
-1

Result calculation
0.250

BT Classic(Worst case):

Transmit Frequency
(GHz)

Mode

2.402

GFSK

Measured Power (dBm)
-3.56

Tune-up power (dBm)
(-4)±1

Max tune-up power(dBm)
-3

Conclusion: For the max result: 0.250 3.0 for 1g SAR, No SAR is required.

Result calculation
0.158

1g SAR
3
1g SAR
3

****** END OF REPORT ******

Add:Room 102, 201, Building 2, Yuanwanggu RFID Industrial Park, Tongguan Road, Tianliao Community, Yutang Street, Guangming District, Shenzhen,China

Tel: (86-755) 29989321

Fax: (86-755) 29985110

Web:www.sz-hongbiao.com



Related FCC IDs:

Search Any Device: