TS552 Bluetooth Speaker Test Report 1 Shenzhen Yaxuan Technology

Shenzhen Yaxuan Technology Bluetooth Speaker

Alternate Views: PDF [Zoom] Download [PDF]

                                                                              Shenzhen CTL Testing Technology Co., Ltd.
                                                                           Tel: +86-755-89486194 E-mail: ctl@ctl-lab.com


                                             TEST REPORT
                                                       FCC PART 15.247

Report Reference No.:                                   CTL1903141011-WF

              Compiled by:                                            Happy Guo
   ( position+printed name+signature)                            (File administrators)
                Tested by:                                           Nice Nong
   ( position+printed name+signature)                              (Test Engineer)
              Approved by:                                               Ivan Xie
   ( position+printed name+signature)                                   (Manager)


Product Name.............................. :            Bluetooth Speaker
Model/Type reference ................. :                TS-552
                                                        MPD552BZ-BK, MPD552BZ-BL, MPD552BZ-RD
List Model(s) ................................ :
                                                        MPD552BZ-CAMFL, TS-552M, H-701, H-441, H-603, H-605
Trade Mark ................................... :        N/A
FCC ID .......................................... :     2ASU5-TS552
Applicant’s name ........................ :             Shenzhen Yaxuan Technology Co.,Ltd
                                                        2f, Bldg A, Jiuwei Third Industrial Park, Xixiang, Bao An,
Address of applicant .................. :
                                                        Shenzhen, China
Test Firm ...................................... :      Shenzhen CTL Testing Technology Co., Ltd.
                                                        Floor 1-A, Baisha Technology Park, No.3011, Shahexi Road,
Address of Test Firm .................. :
                                                        Nanshan District, Shenzhen, China 518055
Test specification ........................ :
Standard ........................................ :     FCC Part 15.247: Operation within the bands 902-928 MHz,
                                                        2400-2483.5 MHz and 5725-5850 MHz.
TRF Originator .............................. :         Shenzhen CTL Testing Technology Co., Ltd.
Master TRF ................................... :        Dated 2011-01
Date of receipt of test item ......... :                Mar. 25, 2019
Date of sampling ......................... :            Mar. 26, 2019
Date of Test Date ......................... :           Mar. 26, 2019–Apr. 03, 2019
Data of Issue ................................ :        Apr. 03, 2019
Result ........................................... :    Pass
Shenzhen CTL Testing Technology Co., Ltd. All rights reserved.
This publication may be reproduced in whole or in part for non-commercial purposes as long as the
Shenzhen CTL Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the
material. Shenzhen CTL Testing Technology Co., Ltd. takes no responsibility for and will not assume
liability for damages resulting from the reader's interpretation of the reproduced material due to its
placement and context.


V1.0                                      Page 2 of 54                    Report No.: CTL1903141011-WF



                                   TEST REPORT
                                                                                Apr. 03, 2019
       Test Report No. :          CTL1903141011-WF
                                                                                Date of issue


       Equipment under Test        :       Bluetooth Speaker


       Model /Type                 :       TS-552


                                   :       MPD552BZ-BK, MPD552BZ-BL, MPD552BZ-RD
       Listed Models                       MPD552BZ-CAMFL, TS-552M , H-701, H-441,
                                           H-603, H-605


       Applicant                   :       Shenzhen Yaxuan Technology Co.,Ltd


       Address                     :       2f, Bldg A, Jiuwei Third Industrial Park, Xixiang, Bao
                                           An, Shenzhen, China


       Manufacturer                :       Shenzhen Yaxuan Technology Co.,Ltd


       Address                     :       2f, Bldg A, Jiuwei Third Industrial Park, Xixiang, Bao
                                           An, Shenzhen, China




                       Test result                                          Pass *
  *In the configuration tested, the EUT complied with the standards specified page 5.
   The test results presented in this report relate only to the object tested.
   This report shall not be reproduced, except in full, without the written approval of the issuing testing
   laboratory.


V1.0                                  Page 3 of 54            Report No.: CTL1903141011-WF


                                  ** Modified History **
  Revisions             Description          Issued Data      Report No.         Remark
 Version 1.0   Initial Test Report Release    2019-04-03   CTL1903141011-WF      Tracy Qi


V1.0                                                                    Page 4 of 54                                         Report No.: CTL1903141011-WF



                                                                       Table of Contents                                                                                      Page
1.     SUMMARY............................................................................................................................................................ 5
     1.1.     TEST STANDARDS ..................................................................................................................................................... 5
     1.2.     TEST DESCRIPTION ........................................................................................................................................................ 5
     1.3.     TEST FACILITY .............................................................................................................................................................. 6
     1.4.     STATEMENT OF THE MEASUREMENT UNCERTAINTY ............................................................................................................... 6
2.     GENERAL INFORMATION....................................................................................................................................... 8
     2.1.     ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 8
     2.2.     GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 8
     2.3.     DESCRIPTION OF TEST MODES AND TEST FREQUENCY .......................................................................................................... 8
     2.4.     EQUIPMENTS USED DURING THE TEST .............................................................................................................................. 9
     2.5.     RELATED SUBMITTAL(S) / GRANT (S) .............................................................................................................................. 10
     2.6.     MODIFICATIONS ......................................................................................................................................................... 10
3.     TEST CONDITIONS AND RESULTS ......................................................................................................................... 11
     3.1.     CONDUCTED EMISSIONS TEST ....................................................................................................................................... 11
     3.2.     RADIATED EMISSIONS AND BAND EDGE .......................................................................................................................... 14
     3.3.     MAXIMUM PEAK OUTPUT POWER.................................................................................................................................21
     3.4.     20DB BANDWIDTH ..................................................................................................................................................... 25
     3.5.     FREQUENCY SEPARATION ............................................................................................................................................. 29
     3.6.     NUMBER OF HOPPING FREQUENCY .................................................................................................................................31
     3.7.     TIME OF OCCUPANCY (DWELL TIME) .............................................................................................................................. 33
     3.8.     OUT‐OF‐BAND EMISSIONS............................................................................................................................................ 37
     3.9.     PSEUDORANDOM FREQUENCY HOPPING SEQUENCE .......................................................................................................... 45
     3.10.    ANTENNA REQUIREMENT ............................................................................................................................................. 46
4.     TEST SETUP PHOTOS OF THE EUT ........................................................................................................................ 47
5.     PHOTOS OF THE EUT ........................................................................................................................................... 48


V1.0                                 Page 5 of 54               Report No.: CTL1903141011-WF


1. SUMMARY
1.1. TEST STANDARDS
The tests were performed according to following standards:
FCC Rules Part 15.247: Frequency Hopping, Direct Spread Spectrum and Hybrid Systems that are in
operation within the bands of 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz
ANSI C63.10: 2013: American National Standard for Testing Unlicensed Wireless Devices

1.2. Test Description
FCC PART 15.247
FCC Part 15.207                   AC Power Conducted Emission                           PASS
FCC Part 15.247(a)(1)(i)          20dB Bandwidth                                        PASS
FCC Part 15.247(d)                Spurious RF Conducted Emission                        PASS
FCC Part 15.247(b)                Maximum Peak Output Power                             PASS
FCC Part 15.247(b)                Pseudorandom Frequency Hopping Sequence               PASS
FCC Part 15.247(a)(1)(iii)        Number of hopping frequency& Time of Occupancy        PASS
FCC Part 15.247(a)(1)             Frequency Separation                                  PASS
FCC Part 15.205/15.209            Radiated Emissions                                    PASS
FCC Part 15.247(d)                Band Edge Compliance of RF Emission                   PASS
FCC Part 15.203/15.247 (b)        Antenna Requirement                                   PASS


V1.0                                      Page 6 of 54                   Report No.: CTL1903141011-WF



1.3. Test Facility
1.3.1   Address of the test laboratory
Shenzhen CTL Testing Technology Co., Ltd.
Floor 1-A, Baisha Technology Park, No. 3011, Shahexi Road, Nanshan, Shenzhen 518055 China

There is one 3m semi-anechoic chamber and two line conducted labs for final test. The Test Sites
meet the requirements in documents ANSI C63.4 and CISPR 32/EN 55032 requirements.

1.3.2 Laboratory accreditation
The test facility is recognized, certified, or accredited by the following organizations:
CNAS-Lab Code: L7497
Shenzhen CTL Testing Technology Co., Ltd. has been assessed and proved to be in compliance with
CNAS-CL01 Accreditation Criteria for Testing and Calibration Laboratories (identical to ISO/IEC 17025:
2005 General Requirements) for the Competence of Testing and Calibration Laboratories.
A2LA-Lab Cert. No. 4343.01
Shenzhen Huatongwei International Inspection Co., Ltd, EMC Laboratory has been accredited by
A2LA for technical competence in the field of electrical testing, and proved to be in compliance with
ISO/IEC 17025: 2005 General Requirements for the Competence of Testing and Calibration
Laboratories and any additional program requirements in the identified field of testing.
IC Registration No.: 9518B
CAB identifier: CN0041
The 3m alternate test site of Shenzhen CTL Testing Technology Co., Ltd. EMC Laboratory has been
registered by Innovation, Science and Economic Development Canada to test to Canadian radio
equipment requirements with Registration No.: 9518B on Jan. 22, 2019.
FCC-Registration No.: 399832
Designation No.: CN1216
Shenzhen CTL Testing Technology Co., Ltd. EMC Laboratory has been registered and fully described
in a report filed with the (FCC) Federal Communications Commission. The acceptance letter from the
FCC is maintained in our files. Registration 399832, December 08, 2017.

1.4. Statement of the measurement uncertainty
The data and results referenced in this document are true and accurate. The reader is cautioned that
there may be errors within the calibration limits of the equipment and facilities. The measurement
uncertainty was calculated for all measurements listed in this test report acc. to CISPR 16 - 4
“Specification for radio disturbance and immunity measuring apparatus and methods – Part 4:
Uncertainty in EMC Measurements“ and is documented in the Shenzhen CTL Testing Technology Co.,
Ltd. quality system acc. to DIN EN ISO/IEC 17025. Furthermore, component and process variability of
devices similar to that tested may result in additional deviation. The manufacturer has the sole
responsibility of continued compliance of the device.

Hereafter the best measurement capability for CTL laboratory is reported:
                                                                    Measurement
                             Test                                                              Notes
                                                                      Uncertainty
                Transmitter power conducted                            ±0.57 dB                 (1)
                 Transmitter power Radiated                            ±2.20 dB                 (1)
        Conducted spurious emission 9KHz-40 GHz                        ±2.20 dB                 (1)
                    Occupied Bandwidth                                 ±0.01ppm                 (1)
               Radiated Emission 30~1000MHz                             ±4.10dB                 (1)
               Radiated Emission Above 1GHz                             ±4.32dB                 (1)




V1.0                                     Page 8 of 54               Report No.: CTL1903141011-WF


2. GENERAL INFORMATION
2.1. Environmental conditions
During the measurement the environmental conditions were within the listed ranges:
                Normal Temperature:                                      25°C
                  Relative Humidity:                                     55 %
                    Air Pressure:                                       101 kPa

2.2. General Description of EUT
Product Name:              Bluetooth Speakers
Model/Type reference:      TS-552
Power supply:              DC 7.4V from battery
Bluetooth :
Supported type:            Bluetooth BR/EDR
Modulation:                GFSK, π/4DQPSK, 8DPSK
Operation frequency:       2402MHz~2480MHz
Channel number:            79
Channel separation:        1MHz
Antenna type:              PCB antenna
Antenna gain:             0dBi
Note: For more details, please refer to the user’s manual of the EUT.

2.3. Description of Test Modes and Test Frequency
The Applicant provides communication tools software to control the EUT for staying in continuous
transmitting (Duty Cycle more than 98%) and receiving mode for testing .There are 79 channels
provided to the EUT and Channel 00/39/78 were selected to test.

Operation Frequency:
                  Channel                                          Frequency (MHz)
                    00                                                  2402
                    01                                                  2403
                         ...




                                                                          ...




                         38                                              2440
                         39                                              2441
                         40                                              2442
                         ...




                                                                          ...




                         77                                              2479
                         78                                              2480


V1.0                                    Page 9 of 54                Report No.: CTL1903141011-WF

Preliminary tests were performed in each mode and packet length of BT, and found worst case as
bellow, finally test were conducted at those mode and recorded in this report.
                    Test Items                                          Worst case
 Conducted Emissions                                            DH5 Middle channel
 Radiated Emissions and Band Edge                                         DH5
 Maximum Conducted Output Power                                    DH5/2DH5/3DH5
 20dB Bandwidth                                                    DH5/2DH5/3DH5
 Frequency Separation                                    DH5/2DH5/3DH5 Middle channel
 Number of hopping frequency                                    DH5/2DH5/3DH5
                                                          DH1/DH3/DH5 Middle channel
 Time of Occupancy (Dwell Time)                          2DH1/2DH3/2DH5 Middle channel
                                                         3DH1/3DH3/3DH5 Middle channel
 Out-of-band Emissions                                          DH5/2DH5/3DH5

2.4. Equipments Used during the Test
                                                                           Calibration   Calibration
 Test Equipment        Manufacturer        Model No.       Serial No.
                                                                             Date        Due Date
                                                         3560.6550.1
         LISN              R&S              ENV216                         2018/05/25    2019/05/24
                                                              2
         LISN              R&S             ESH2-Z5        860014/010       2018/05/25    2019/05/24
                      Sunol Sciences
  Bilog Antenna                               JB1          A061713         2018/05/25    2019/05/24
                          Corp.
EMI Test Receiver          R&S               ESCI        1166.5950.03      2018/05/25    2019/05/24
Spectrum Analyzer         Agilent           E4407B       MY41440676        2018/05/21    2019/05/20
Spectrum Analyzer         Agilent            N9020       US46220290        2018/05/21    2019/05/20
       Controller     EM Electronics       EM 1000          060859         2018/05/21    2019/05/20
                      Sunol Sciences
  Horn Antenna                             DRH-118         A062013         2018/05/25    2019/05/24
                          Corp.
   Active Loop
                           Da Ze           ZN30900A            /           2018/05/25    2019/05/24
    Antenna
       Amplifier          Agilent            8449B       3008A02306        2018/05/25    2019/05/24
       Amplifier          Agilent            8447D       2944A10176        2018/05/25    2019/05/24
Temperature/Humi
                         Gangxing          CTH-608            02           2018/05/17    2019/05/16
dity Meter
High-Pass Filter       micro-tranics      HPM50108           G174          2018/05/17    2019/05/16
High-Pass Filter       micro-tranics       HPM50111          G142          2018/05/17    2019/05/16
                      HUBER+SUHN          SUCOFLEX                         2018/05/17    2019/05/16
  Coaxial Cables                                             10m
                          ER             104PEA-10M
                      HUBER+SUHN          SUCOFLEX                         2018/05/17    2019/05/16
  Coaxial Cables                                              3m
                          ER              104PEA-3M
                      HUBER+SUHN          SUCOFLEX                         2018/05/17    2019/05/16
  Coaxial Cables                                              3m
                          ER              104PEA-3M
    RF Cable              Megalon           RF-A303           N/A          2018/05/17    2019/05/16
The calibration interval was one year


V1.0                                    Page 10 of 54                 Report No.: CTL1903141011-WF


2.5. Related Submittal(s) / Grant (s)
This submittal(s) (test report) is intended to comply with Section 15.247 of the FCC Part 15, Subpart C
Rules.

2.6. Modifications
No modifications were implemented to meet testing criteria.


V1.0                                          Page 11 of 54                   Report No.: CTL1903141011-WF


3. TEST CONDITIONS AND RESULTS
3.1. Conducted Emissions Test
LIMIT
FCC CFR Title 47 Part 15 Subpart C Section 15.207

                                                                        Limit (dBuV)
          Frequency range (MHz)
                                                        Quasi-peak                         Average

                   0.15-0.5                               66 to 56*                        56 to 46*

                    0.5-5                                     56                              46

                     5-30                                     60                              50

* Decreases with the logarithm of the frequency.


TEST CONFIGURATION




TEST PROCEDURE

1.     The equipment was set up as per the test configuration to simulate typical actual usage per the user’s
       manual. The EUT is a tabletop system; a wooden table with a height of 0.8 meters is used and is placed on
       the ground plane as per ANSI C63.10:2013.
2.     Support equipment, if needed, was placed as per ANSI C63.10:2013.
3.     All I/O cables were positioned to simulate typical actual usage as per ANSI C63.10:2013.
4.     The adapter received AC120V/60Hz power through a Line Impedance Stabilization Network (LISN) which
       supplied power source and was grounded to the ground plane.
5.     All support equipments received AC power from a second LISN, if any.
6.     The EUT test program was started. Emissions were measured on each current carrying line of the EUT
       using a spectrum Analyzer / Receiver connected to the LISN powering the EUT. The LISN has two
       monitoring points: Line 1 (Hot Side) and Line 2 (Neutral Side). Two scans were taken: one with Line 1
       connected to Analyzer / Receiver and Line 2 connected to a 50 ohm load; the second scan had Line 1
       connected to a 50 ohm load and Line 2 connected to the Analyzer / Receiver.
7.     Analyzer / Receiver scanned from 150 KHz to 30MHz for emissions in each of the test modes.
8.     During the above scans, the emissions were maximized by cable manipulation.


V1.0                                 Page 12 of 54               Report No.: CTL1903141011-WF

TEST RESULTS

Remark: All modes of GFSK, Pi/4 DQPSK, and 8DPSK were test at Low, Middle, and High
        channel; only the worst result of GFSK Middle Channel was reported as below:


SCAN TABLE:          "Voltage          (9K—30M)FIN"
  Short Description:                              150K—30M Voltage

  Level (dBuV]




                                                                                         VY
                                             i                          ‘      1CMc
                                                                               recanm    in
                                                                                         reba
 o                                           i1                         i1     bod
                                                                               10 d aj   Pda
                                                                                          1  O
     150k        300% 400k        600k 800k 1M               2M       m       4M 5m 6M   B tom    zom   0M
                                                         Frequency [Hz]
x x xmss ormisoeorssefin



MEASUREMENT RESULT:                  "CTL190401322_fin"
2019—4—1         04:0122
     Frequency         Level        Transd    Limit        Margin       Detector     Line    PE
             MBz           dBuy          dB       dBuy           as
      0150000          43.40           11.2         66        22.6       op         N       cip
      0249000          37. 90          11.2         62        a3.9       op         N       cip
      0.276000         37.40           11           61        23.5       op         N       cip
      0.406500         32. 60          11           58        as.1       op         N       cip
      0.541500         32.20           11.2         56        23.8       op         N       cip
      0. 622500        32.30           11.2         56        a3.7      op          N       cip


MEASUREMENT RESULT:                  "CTL190401322_fin2"

2019—4—1 04:0122
   Frequency   Level                Transd    Limit        Margin       Detector     Line    PE
         MBz     dBuy                   dB     dBuy            as
      0150000          35.30           11           56        20.7       AV         N       cip
      0.546000         25.30           11           46        20.7       AV         N       cip
      0.613500                         11           46        19.4       ay         N       cip
      1.383000                         11.3         46        24.7       Av         N       cip
      8.979000                         11.1         50        24.5       AV         N       cip
      9.019500         24.90           11.1         50        25.1       AV         N       cip


V1.0                                     Page 14 of 54                  Report No.: CTL1903141011-WF



3.2. Radiated Emissions and Band Edge
Limit

For intentional device, according to § 15.209(a), the general requirement of field strength of radiated
emission out of authorized band shall not exceed the following table at a 3 meters measurement
distance.
In addition, radiated emissions which fall in the restricted bands, as defined in §15.205(a), must also
comply with the radiated emission limits specified in §15.209(a)

                                      Radiated emission limits
  Frequency (MHz)       Distance (Meters)           Radiated (dBμV/m)                  Radiated (μV/m)
     0.009-0.49                 3            20log(2400/F(KHz))+40log(300/3)             2400/F(KHz)
     0.49-1.705                 3            20log(24000/F(KHz))+ 40log(30/3)           24000/F(KHz)
      1.705-30                  3                 20log(30)+ 40log(30/3)                      30
        30-88                   3                           40.0                             100
       88-216                   3                           43.5                             150
      216-960                   3                           46.0                             200
     Above 960                  3                           54.0                             500

TEST CONFIGURATION
                 (A) Radiated Emission Test Set-Up, Frequency Below 30MHz




                       (B) Radiated Emission Test Set-Up, Frequency below 1000MHz




                       (C) Radiated Emission Test Set-Up, Frequency above 1000MHz


V1.0                                     Page 15 of 54                Report No.: CTL1903141011-WF




Test Procedure

1.     Below 1GHz measurement the EUT is placed on a turntable which is 0.8m above ground plane,
       and above 1GHz measurement EUT was placed on a low permittivity and low loss tangent turn
       table which is 1.5m above ground plane.
2.     Maximum procedure was performed by raising the receiving antenna from 1m to 4m and rotating
       the turn table from 0℃ to 360℃ to acquire the highest emissions from EUT
3.     And also, each emission was to be maximized by changing the polarization of receiving antenna
       both horizontal and vertical.
4.     Repeat above procedures until all frequency measurements have been completed.

TEST RESULTS
Remark:
1. We measured Radiated Emission at GFSK, π/4 DQPSK and 8DPSK mode from 9 KHz to 25GHz
   and recorded worst case at GFSK DH5 mode.
2. For below 1GHz testing recorded worst at GFSK DH5 low channel.
3. Radiated emission test from 9 KHz to 10th harmonic of fundamental was verified, and no emission
   found except system noise floor in 9 KHz to 30MHz and not recorded in this report.


V1.0              Page 16 of 54     Report No.: CTL1903141011-WF

 For 30MHz-1GHz
                       Horizontal




                        Vertical


V1.0                                      Page 17 of 54                      Report No.: CTL1903141011-WF

For 1GHz to 25GHz
Note:GFSK, Pi/4 DQPSK and 8DPSK all have been tested, only worse case GFSK is reported.
                                          GFSK (above 1GHz)
        Frequency(MHz):                  2402                    Polarity:                HORIZONTAL
                                                                                         Pre-
  Frequency       Emission       Limit      Margin        Raw    Antenna       Cable             Correction
                                                                                       amplifier
   (MHz)             Level      (dBuV/m)        (dB)     Value    Factor      Factor     (dB)     Factor
                   (dBuV/m)                             (dBuV)    (dB/m)       (dB)               (dB/m)
   4804.00    58.22        PK     74            15.78    53.71     33.49       6.91     35.89       4.51
   4804.00    53.54        AV     54             0.46    49.03     33.49       6.91     35.89      4.51
   5034.25    42.15        PK     74            31.85    35.29     34.06       7.04     34.24       6.86
   5034.25      --         AV     54              --       --        --         --        --         --
   7206.00    46.21        PK     74            27.79    35.11     36.95       9.18     35.03      11.10
   7206.00      --         AV     54              --       --        --         --        --         --

        Frequency(MHz):                  2402                    Polarity:                   VERTICAL
                                                                                         Pre-
  Frequency       Emission       Limit      Margin        Raw    Antenna       Cable             Correction
                                                                                       amplifier
   (MHz)             Level      (dBuV/m)        (dB)     Value    Factor      Factor     (dB)      Factor
                   (dBuV/m)                             (dBuV)    (dB/m)       (dB)                (dB/m)
   4804.00    57.18        PK     74            16.82    52.67     33.49       6.91     35.89        4.51
   4804.00    51.58        AV     54             2.42    47.07     33.49       6.91     35.89       4.51
   5034.25    43.87        PK     74            30.13    37.01     34.06       7.04     34.24        6.86
   5034.25      --         AV     54              --       --        --         --        --          --
   7206.00    46.26        PK     74            27.74    35.16     36.95       9.18     35.03       11.10
   7206.00      --         AV     54              --       --        --         --        --          --
        Frequency(MHz):                  2441                    Polarity:                  HORIZONTAL
                                                                                        Pre-
  Frequency       Emission       Limit      Margin        Raw    Antenna       Cable               Correction
                                                                                       amplifier
   (MHz)             Level      (dBuV/m)        (dB)     Value    Factor      Factor    (dB)        Factor
                   (dBuV/m)                             (dBuV)    (dB/m)       (dB)                 (dB/m)
   4882.00    56.55        PK     74            17.45    50.19     33.60       6.95     34.19         6.36
   4882.00    51.37        AV     54             2.63    45.01     33.60       6.95     34.19        6.36
   5148.05    43.42        PK     74            30.58    35.82     34.56       7.15     34.11         7.60
   5148.05      --         AV     54              --       --        --         --        --           --
   7323.00    46.52        PK     74            27.48    34.82     37.46       9.23     35.00        11.70
   7323.00      --         AV     54              --       --        --         --        --           --



        Frequency(MHz):                  2441                    Polarity:                   VERTICAL
                                                                                         Pre-
  Frequency       Emission       Limit      Margin        Raw    Antenna       Cable             Correction
                                                                                       amplifier
   (MHz)             Level      (dBuV/m)        (dB)     Value    Factor      Factor     (dB)      Factor
                   (dBuV/m)                             (dBuV)    (dB/m)       (dB)                (dB/m)
   4882.00    58.05        PK     74            15.95    51.69     33.60       6.95     34.19        6.36
   4882.00    51.34        AV     54             2.66    44.98     33.60       6.95     34.19       6.36
   5148.05    43.09        PK     74            30.91    35.49     34.56       7.15     34.11        7.60
   5148.05      --         AV     54              --       --        --         --        --          --
   7323.00    47.98        PK     74            26.02    36.28     37.46       9.23     35.00       11.70
   7323.00      --         AV     54              --       --        --         --        --          --


V1.0                                      Page 18 of 54                      Report No.: CTL1903141011-WF

        Frequency(MHz):                  2480                    Polarity:                HORIZONTAL
                                                                                         Pre-
  Frequency      Emission        Limit      Margin        Raw    Antenna       Cable             Correction
                                                                                       amplifier
   (MHz)             Level      (dBuV/m)        (dB)     Value    Factor      Factor     (dB)     Factor
                   (dBuV/m)                             (dBuV)    (dB/m)       (dB)               (dB/m)
   4960.00    54.26        PK     74            19.74    49.34     33.84       7.00     35.92       4.92
   4960.00    51.01        AV     54             2.99    46.09     33.84       7.00     35.92      4.92
   5223.15    43.06        PK     74            30.94    35.78     34.45       7.12     34.29       7.28
   5223.15      --         AV     54              --       --        --         --        --         --
   7440.00    42.58        PK     74            31.42    30.63     37.64       9.28     34.97      11.95
   7440.00      --         AV     54              --       --        --         --        --         --

        Frequency(MHz):                  2480                    Polarity:                   VERTICAL
                                                                                         Pre-
  Frequency      Emission        Limit      Margin        Raw    Antenna       Cable             Correction
                                                                                       amplifier
   (MHz)             Level      (dBuV/m)        (dB)     Value    Factor      Factor     (dB)      Factor
                   (dBuV/m)                             (dBuV)    (dB/m)       (dB)                (dB/m)
   4960.00    58.25        PK     74            15.75    53.33     33.84       7.00     35.92        4.92
   4960.00    51.25        AV     54             2.75    46.33     33.84       7.00     35.92       4.92
   5223.15    43.15        PK     74            30.85    35.87     34.45       7.12     34.29        7.28
   5223.15      --         AV     54              --       --        --         --        --          --
   7440.00    44.85        PK     74            29.15    32.90     37.64       9.28     34.97       11.95
   7440.00      --         AV     54              --       --        --         --        --          --

REMARKS:
     1. Emission level (dBuV/m) =Raw Value (dBuV)+Correction Factor (dB/m)
     2. Correction Factor (dB/m) = Antenna Factor (dB/m)+Cable Factor (dB)-Pre-amplifier Factor
     3. Margin value = Limit value- Emission level.
     4. -- Mean the PK detector measured value is below average limit.
     5. The other emission levels were very low against the limit.
     6. RBW1MHz VBW3MHz Peak detector is for PK value; RBW 1MHz VBW10Hz Peak
         detector is for AV value.


V1.0                                          Page 19 of 54                       Report No.: CTL1903141011-WF

Results of Band Edges Test (Radiated)
Note:GFSK, Pi/4 DQPSK and 8DPSK all have been tested, only worse case GFSK is reported.
             Frequency(MHz):                  2402                    Polarity:               HORIZONTAL
                                                                                             Pre-
       Frequency       Emission       Limit      Margin       Raw     Antenna      Cable              Correction
                                                                                            amplifier
        (MHz)             Level      (dBuV/m)        (dB)     Value    Factor      Factor    (dB)      Factor
                        (dBuV/m)                             (dBuV)    (dB/m)       (dB)               (dB/m)
        2402.00    99.42        PK     --              --     66.03     28.78       4.61       0        33.39
        2402.00    93.05        AV     --              --     59.66     28.78       4.61       0        33.39
        2341.15    43.47        PK     74            30.53    10.39     28.52       4.56       0        33.08
        2341.15      --         AV     54              --       --        --          --       --         --
        2390.00    49.28        PK     74            24.72    15.96     28.72       4.60       0        33.32
        2390.00      --         AV     54              --       --        --          --       --         --
        2400.00    50.03        PK     74            23.97    16.64     28.78       4.61       0        33.39
        2400.00      --         AV     54              --       --        --          --       --         --

             Frequency(MHz):                  2402                    Polarity:                  VERTICAL
                                                                                             Pre-
       Frequency       Emission       Limit      Margin       Raw     Antenna      Cable              Correction
                                                                                            amplifier
        (MHz)             Level      (dBuV/m)        (dB)     Value    Factor      Factor    (dB)      Factor
                        (dBuV/m)                             (dBuV)    (dB/m)       (dB)               (dB/m)
        2402.00    100.85       PK     --              --     67.46     28.78       4.61       0        33.39
        2402.00    95.52        AV     --              --     62.13     28.78       4.61       0        33.39
        2342.35    44.25        PK     74            29.75    11.17     28.52       4.56       0        33.08
        2342.35      --         AV     54              --       --        --          --       --         --
        2390.00    46.58        PK     74            27.42    13.26     28.72       4.60       0        33.32
        2390.00      --         AV     54              --       --        --          --       --         --
        2400.00    48.51        PK     74            25.49    15.12     28.78       4.61       0        33.39
        2400.00      --         AV     54              --       --        --          --       --         --

             Frequency(MHz):                  2480                    Polarity:               HORIZONTAL
                                                                                             Pre-
       Frequency       Emission       Limit      Margin       Raw     Antenna      Cable              Correction
                                                                                            amplifier
        (MHz)             Level      (dBuV/m)        (dB)     Value    Factor      Factor    (dB)      Factor
                        (dBuV/m)                             (dBuV)    (dB/m)       (dB)               (dB/m)
        2480.00    101.09       PK     --              --     67.47     28.92       4.70     0.00       33.62
        2480.00    94.21        AV     --              --     60.59     28.92       4.70     0.00       33.62
        2483.50    45.19        PK     74            28.81    11.56     28.93       4.70     0.00       33.63
        2483.50      --         AV     54              --       --        --          --       --         --
        2488.15    44.48        PK     74            29.52    10.82     28.95       4.71     0.00       33.66
        2488.15      --         AV     54              --       --        --          --       --         --
        2500.00    43.78        PK     74            30.22     10.1     28.96       4.72     0.00       33.68
        2500.00      --         AV     54              --       --        --          --       --         --

             Frequency(MHz):                  2480                    Polarity:                  VERTICAL
                                                                                             Pre-
       Frequency       Emission       Limit      Margin       Raw     Antenna      Cable              Correction
                                                                                            amplifier
        (MHz)             Level      (dBuV/m)        (dB)     Value    Factor      Factor    (dB)      Factor
                        (dBuV/m)                             (dBuV)    (dB/m)       (dB)               (dB/m)
        2480.00    98.25        PK     --              --     64.63     28.92       4.70     0.00       33.62
        2480.00    93.21        AV     --              --     59.59     28.92       4.70     0.00       33.62
        2483.50    45.52        PK     74            28.48    11.89     28.93       4.70     0.00       33.63
        2483.50      --         AV     54              --       --        --          --       --         --
        2488.15    44.21        PK     74            29.79    10.55     28.95       4.71     0.00       33.66
        2488.15      --         AV     54              --       --        --          --       --         --
        2500.00    42.84        PK     74            31.16     9.16     28.96       4.72     0.00       33.68
        2500.00      --         AV     54              --       --        --          --       --         --


V1.0                                 Page 20 of 54               Report No.: CTL1903141011-WF

REMARKS:
     1. Emission level (dBuV/m) =Raw Value (dBuV)+Correction Factor (dB/m)
     2. Correction Factor (dB/m) = Antenna Factor (dB/m)+Cable Factor (dB)-Pre-amplifier Factor
     3. Margin value = Limit value- Emission level.
     4. -- Mean the PK detector measured value is below average limit.
     5. The other emission levels were very low against the limit.
     6. RBW1MHz VBW 3MHz Peak detector is for PK value; RBW 1MHz VBW10Hz Peak
         detector is for AV value.


V1.0                                      Page 21 of 54                 Report No.: CTL1903141011-WF



3.3. Maximum Peak Output Power
Limit
For frequency hopping systems operating in the 2400-2483.5 MHz band employing at least 75
non-overlapping hopping channels: 1 watt.
For all other frequency hopping systems in the 2400-2483.5 MHz band: 0.125 watts.
Test Procedure
Remove the antenna from the EUT and then connect a low loss RF cable from the antenna port to the
spectrum.
Test Configuration


                                                             SPECTRUM
                   EUT                                       ANALYZER

Test Results

         Type             Channel          Output power (dBm)            Limit (dBm)        Result
                             00                    -2.338
        GFSK                 39                    -2.939                    30              Pass
                             78                    -3.926
                             00                    -1.261
       π/4DQPSK              39                    -1.848                   20.97            Pass
                             78                    -2.823
                             00                    -1.227
        8DPSK                39                    -1.848                   20.97            Pass
                              78                    -2.843
 Note: 1.The test results including the cable lose.

Test plot as follows:


V1.0   Page 22 of 54      Report No.: CTL1903141011-WF



        GFSK Modulation




              CH00




              CH39




              CH78


V1.0   Page 23 of 54         Report No.: CTL1903141011-WF



       π/4DQPSK Modulation




              CH00




              CH39




              CH78


V1.0   Page 24 of 54       Report No.: CTL1903141011-WF



        8DPSK Modulation




              CH00




              CH39




              CH78


V1.0                                   Page 25 of 54                Report No.: CTL1903141011-WF



3.4. 20dB Bandwidth
Limit
For frequency hopping systems operating in the 2400MHz-2483.5MHz no limit for 20dB bandwidth.

Test Procedure

The transmitter output was connected to the spectrum analyzer through an attenuator. The bandwidth
of the fundamental frequency was measured by spectrum analyzer with 30 KHz RBW and 100 KHz
VBW.
The 20dB bandwidth is defined as the total spectrum the power of which is higher than peak power
minus 20dB.

Test Configuration


                 EUT                                   SPECTRUM
                                                       ANALYZER

Test Results

                                       20dB bandwidth            99% OBW
   Modulation           Channel                                                        Result
                                           (MHz)                   (MHz)
                         CH00               0.9057                0.85098
        GFSK             CH39               0.9136                0.84956
                         CH78               0.9083                0.84375
                         CH00                1.223                 1.1655
  π/4DQPSK               CH39                1.227                 1.1672               Pass
                         CH78                1.269                 1.1684
                         CH00                1.253                 1.1652
       8DPSK             CH39                1.222                 1.1649
                         CH78                1.216                 1.1642

Test plot as follows:


V1.0   Page 26 of 54      Report No.: CTL1903141011-WF



        GFSK Modulation




              CH00




              CH39




              CH78


V1.0   Page 27 of 54         Report No.: CTL1903141011-WF



       π/4DQPSK Modulation




              CH00




              CH39




              CH78


V1.0   Page 28 of 54       Report No.: CTL1903141011-WF



        8DPSK Modulation




              CH00




              CH39




              CH78


V1.0                                    Page 29 of 54                 Report No.: CTL1903141011-WF



3.5. Frequency Separation
LIMIT

According to 15.247(a)(1),frequency hopping systems shall have hopping channel carrier frequencies
separated by minimum of 25KHz or the 2/3*20dB bandwidth of the hopping channel, whichever is
greater.

TEST PROCEDURE

The transmitter output was connected to the spectrum analyzer through an attenuator. The bandwidth
of the fundamental frequency was measured by spectrum analyzer with100 KHz RBW and 300 KHz
VBW.

TEST CONFIGURATION


                                                        SPECTRUM
                   EUT                                  ANALYZER

TEST RESULTS

                                         Channel Separation
  Modulation            Channel                                       Limit(MHz)             Result
                                              (MHz)
                         CH39                                     25KHz or 2/3*20dB
       GFSK                                     1.038                                        Pass
                         CH40                                        bandwidth

                         CH39                                     25KHz or 2/3*20dB
  π/4DQPSK                                      1.215                                        Pass
                         CH40                                        bandwidth

                         CH39                                     25KHz or 2/3*20dB
       8DPSK                                    1.032                                        Pass
                         CH40                                        bandwidth


Note:
We have tested all mode at high, middle and low channel, and recorded worst case at middle

Test plot as follows:


V1.0   Page 30 of 54         Report No.: CTL1903141011-WF



         GFSK Modulation




       π/4DQPSK Modulation




        8DPSK Modulation



Document Created: 2019-04-10 15:43:52
Document Modified: 2019-04-10 15:43:52
Download: TS552 Bluetooth Speaker Test Report 1 Shenzhen Yaxuan Technology
Mirror Download [FCC.gov]TS552 Bluetooth Speaker Test Report 1 Shenzhen Yaxuan Technology
Document ID4235110
Application IDDVRPKWIbdvip01AozllwiA==
Document DescriptionTest report1
Short Term ConfidentialNo
Permanent ConfidentialNo
SupercedeNo
Document TypeTest Report
Display FormatAdobe Acrobat PDF - pdf
Filesize147.85kB (1848099 bits)
Date Submitted2019-04-10 00:00:00
Date Available2019-04-10 00:00:00
Creation Date2019-04-10 15:43:52
Producing SoftwareAcrobat Distiller 9.0.0 (Windows)
Document Lastmod2019-04-10 15:43:52
Document TitleTest report1
Document CreatorPScript5.dll Version 5.2.2
Document Author: Administrator