TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED

SPRITE LIMITED True Wireless Bluetooth Earphones

Page 1 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 2 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 3 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 4 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 5 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 6 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 7 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 8 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 9 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 10 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 11 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 12 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 13 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 14 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 15 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 16 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 17 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 18 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 19 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 20 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 21 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 22 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 23 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 24 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 25 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 26 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 27 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 28 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 29 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 30 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 31 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 32 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 33 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 34 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 35 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 36 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 37 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 38 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 39 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 40 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 41 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Page 42 of TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED

Page 1 of 42
Report No.: K1811291745E
FCC TEST REPORT
FCC PART 15 SUBPART C 15.249
Test report
On Behalf of
SPRITE LIMITED
For
True Wireless Bluetooth Earphones
Model No.: T23
FCC ID: 2ADTF-TS23
Prepared for :
SPRITE LIMITED
3rd Floor, A7 Building, Shenliang Group, NO.299 Guanping Road,
Guanlan town, Longhua District, Shenzhen, Guangdong, China.518110
Prepared By :
Shenzhen HUAK Testing Technology Co., Ltd.
1F, B2 Building, Junfeng Zhongcheng Zhizao Innovation Park, Fuhai
Street, Bao'an District, Shenzhen City, China
Date of Test:
Nov. 30, 2018 ~ Dec. 11, 2018
Date of Report:
Dec. 12, 2018
Report Number:
K1811291745E
Page 2 of 42
Report No.: K1811291745E
TEST RESULT CERTIFICATION
LIMITED
Applicant’s name ....................SPRITE
3rd Floor, A7 Building, Shenliang Group, NO.299 Guanping Road,
Address .................................... :
Guanlan town, Longhua District, Shenzhen, Guangdong, China.518110
LIMITED
Manufacture's Name ..............SPRITE
3rd Floor, A7 Building, Shenliang Group, NO.299 Guanping Road,
Address .................................... :
Guanlan town, Longhua District, Shenzhen, Guangdong, China.518110
LIMITED
Factory's Name .......................SPRITE
3rd Floor, A7 Building, Shenliang Group, NO.299 Guanping Road,
Address .................................... :
Guanlan town, Longhua District, Shenzhen, Guangdong, China.518110
Product description
Trade Mark ...............................SPRITE
Wireless Bluetooth Earphones
Product name ...........................True
Model and/or type reference ....T23
Series Model .............................TS23A, TS23J
Difference Description ...............All the same except for the color
FCC Rules and Regulations Part 15 Subpart C Section 15.249
Standards ................................ :
ANSI C63.10: 2013
This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen
HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material.
Shenzhen HUAK 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.
Date of Test ................................................ :
Date (s) of performance of tests ................. :
Nov. 30, 2018 ~ Dec. 11, 2018
Date of Issue............................................... :
Dec. 12, 2018
Test Result................................................... :
Pass
Testing Engineer
(Gary Qian)
Technical Manager
(Eden Hu)
Authorized Signatory :
(Jason Zhou)
Page 3 of 42
Report No.: K1811291745E
Table of Contents
Page
1 . TEST SUMMARY
2 . GENERAL INFORMATION
2.1 GENERAL DESCRIPTION OF EUT
2.2 OPERATION OF EUT DURING TESTING
2.3 DESCRIPTION OF TEST SETUP
2.4 MEASUREMENT INSTRUMENTS LIST
3. RADIATED EMISSION
3.1. MEASUREMENT PROCEDURE
3.2. TEST SETUP
11
3.3. TEST RESULT
12
4. BAND EDGE EMISSION
20
4.1. MEASUREMENT PROCEDURE
20
4.2 TEST SETUP
20
4.3 RADIATED TEST RESULT
21
5. BANDWIDTH
25
5.1. MEASUREMENT PROCEDURE
25
5.2. TEST SETUP
25
5.3. TEST RESULT
26
6. FCC LINE CONDUCTED EMISSION TEST
32
6.1. LIMITS OF LINE CONDUCTED EMISSION TEST
32
6.2. BLOCK DIAGRAM OF LINE CONDUCTED EMISSION TEST
32
6.3. PRELIMINARY PROCEDURE OF LINE CONDUCTED EMISSION TEST
33
6.4. FINAL PROCEDURE OF LINE CONDUCTED EMISSION TEST
33
6.5. TEST RESULT OF LINE CONDUCTED EMISSION TEST
33
APPENDIX A: PHOTOGRAPHS OF TEST SETUP
34
APPENDIX B: PHOTOGRAPHS OF EUT
36
Page 4 of 42
Report No.: K1811291745E
1. TEST SUMMARY
1.1 TEST PROCEDURES AND RESULTS
FCC RULES
DESCRIPTION OF TEST
RESULT
§15.249&15.209
Radiated Emission
Compliant
§15.249&15.209
Band Edges Emission
Compliant
§15.215
20dB bandwidth
Compliant
§15.207
Conducted Emission
Note: N/A means it’s not applicable to this item.
N/A
1.2 TEST FACILITY
Test Firm
Shenzhen HUAK Testing Technology Co., Ltd.
Address
1F, B2 Building, Junfeng Zhongcheng Zhizao Innovation Park,
Designation Number:
Fuhai Street, Bao'an District, Shenzhen City, China
CN1229
Test Firm Registration Number : 616276
1.3 MEASUREMENT UNCERTAINTY
Measurement Uncertainty
Conducted Emission Expanded Uncertainty
Radiated emission expanded uncertainty(9kHz-30MHz)
Radiated emission expanded uncertainty(30MHz-1000MHz)
Radiated emission expanded uncertainty(Above 1GHz)
2.23dB, k=2
3.08dB, k=2
4.42dB, k=2
4.06dB, k=2
Page 5 of 42
Report No.: K1811291745E
2. GENERAL INFORMATION
2.1 GENERAL DESCRIPTION OF EUT
Operation Frequency
2.402 GHz to 2.480GHz
Maximum field strength
97.11dBuV/m(Peak)@3m
Bluetooth Version
V4.2
Modulation
GFSK, π /4-DQPSK, 8DPSK for BR/EDR
Number of channels
79 for BR/EDR
Antenna Gain
2dBi
Antenna Designation
Ceramic Antenna (Met 15.203 Antenna requirement)
Hardware Version
V3
Software Version
20101020ver00.22
Power Supply
DC 3.7V by battery
Note: 1. The USB port only used for charging and can’t be used to transfer data with PC.
2. The BT function of EUT doesn’t work when charging.
3. The EUT doesn’t support BLE.
4.The EUT comprises left and right channel earphone, both have been tested and only the test data
of left earphone recorded in this report.
BR/EDR channel List
Frequency Band
2400~2483.5MHZ
Channel Number
Frequency
2402MHZ
2403MHZ
38
2440 MHZ
39
2441 MHZ
40
2442 MHZ
77
2479 MHZ
78
2480 MHZ
Page 6 of 42
Report No.: K1811291745E
2.2 OPERATION OF EUT DURING TESTING
NO.
TEST MODE DESCRIPTION
Low channel GFSK
Middle channel GFSK
High channel GFSK
Low channel π /4-DQPSK
Middle channel π /4-DQPSK
High channel π /4-DQPSK
Low channel 8DPSK
Middle channel 8DPSK
High channel 8DPSK
Note: 1. Only the data of the worst case recorded in the test report.
2. For Radiated Emission, 3axis were chosen for testing for each applicable mode.
Page 7 of 42
Report No.: K1811291745E
2.3 DESCRIPTION OF TEST SETUP
Configure 1: (Normal hopping)
EUT
Configure 2: (Control continuous TX)
EUT
Control box
PC
Item
Equipment
Mfr/Brand
Model/Type No.
Remark
True Wireless Bluetooth
SPRITE
T23
EUT
Earphones
Battery
NEW ENEGY
551012
Accessory
PC
APPLE
A1465
A.E
IPOD
APPLE
A1367
A.E
Control box
DOFLY
N/A
A.E
USB Cable
N/A
1.0m unshielded
A.E
Page 8 of 42
Report No.: K1811291745E
2.4 MEASUREMENT INSTRUMENTS LIST
TEST EQUIPMENT OF RADIATED EMISSION TEST
Lab
Item
Equipment
Manufacturer
Model No.
Equipment
Last Cal.
No.
Cal.
Interval
1.
Spectrum analyzer
Agilent
N9020A
HKE-048
Dec. 28, 2017
1 Year
2.
Preamplifier
Schwarzbeck
BBV 9743
HKE-006
Dec. 28, 2017
1 Year
3.
EMI Test Receiver
ESCI 7
HKE-010
Dec. 28, 2017
1 Year
Schwarzbeck
VULB9163
HKE-012
Dec. 28, 2017
1 Year
4.
Bilog Broadband
Antenna
Rohde &
Schwarz
5.
Loop Antenna
Schwarzbeck
FMZB 1519 B
6.
Horn Antenna
Schewarzbeck
9120D
A-INFOMW
LB-180400-KF
7.
Broad-band Horn
Antenna
HKE-014
FMZB 1519 Dec. 012
28, 2017
May 11,12016
Year 1 Year
HKE-013
HKE-031
Dec. 28, 2017
1 Year
Dec. 28, 2017
1 Year
8.
Pre-amplifier
EMCI
EMC051845SE
HKE-015
Dec. 28, 2017
1 Year
9.
Pre-amplifier
Agilent
83051A
HKE-016
Dec. 28, 2017
1 Year
Micro-tronics
087
--
N/A
N/A
10.
Filter
(2.4-2.483GHz)
11.
Radiation Cable 1
MXT
HK1
R05
N/A
N/A
12.
Radiation Cable 2
MXT
HK1
R06
N/A
N/A
Page 9 of 42
Report No.: K1811291745E
3. RADIATED EMISSION
3.1. MEASUREMENT PROCEDURE
1. The EUT was placed on the top of the turntable 0.8 or 1.5 meter above ground. The phase center of
the receiving antenna mounted on the top of a height-variable antenna tower was placed 3 meters far
away from the turntable.
2. Power on the EUT and all the supporting units. The turntable was rotated by 360 degrees to determine
the position of the highest radiation.
3. The height of the broadband receiving antenna was varied between one meter and four meters above
ground to find the maximum emissions field strength of both horizontal and vertical polarization.
4. For each suspected emissions, the antenna tower was scan (from 1 M to 4 M) and then the turntable
was rotated (from 0 degree to 360 degrees) to find the maximum reading.
5. Set the test-receiver system to Peak or CISPR quasi-peak Detect Function with specified bandwidth
under Maximum Hold Mode.
6. For emissions above 1GHz, use 1MHz VBW and RBW for peak reading. Then 1MHz RBW and 10Hz
VBW for average reading in spectrum analyzer. Place the measurement antenna away from each area
of the EUT determined to be a source of emissions at the specified measurement distance, while
keeping the measurement antenna aimed at the source of emissions at each frequency of significant
emissions, with polarization oriented for maximum response. The measurement antenna may have to
be higher or lower than the EUT, depending on the radiation pattern of the emission and staying aimed
at the emission source for receiving the maximum signal. The final measurement antenna elevation
shall be that which maximizes the emissions. The measurement antenna elevation for maximum
emissions shall be restricted to a range of heights of from 1 m to 4 m above the ground or reference
ground plane.
7. When the radiated emissions limits are expressed in terms of the average value of the emissions, and
pulsed operation is employed, the measurement field strength shall be determined by averaging over
one complete pulse train, including blanking intervals, as long as the pulse train does not exceed 0.1
seconds. As an alternative (provided the transmitter operates for longer than 0.1 seconds) or in cases
where the pulse train exceeds 0.1 seconds, the measured field strength shall be determined from the
average absolute voltage during a 0.1 second interval during which the field strength is at its maximum
values.
8.If the emissions level of the EUT in peak mode was 3 dB lower than the average limit specified, then
testing will be stopped and peak values of EUT will be reported, otherwise, the emissions which do not
have 3 dB margin will be repeated one by one using the quasi-peak method for below 1GHz.
9. For testing above 1GHz, the emissions level of the EUT in peak mode was lower than average limit
(that means the emissions level in peak mode also complies with the limit in average mode), then
testing will be stopped and peak values of EUT will be reported, otherwise, the emissions will be
measured in average mode again and reported.
10. In case the emission is lower than 30MHz, loop antenna has to be used for measurement and the
recorded data should be QP measured by receiver. High - Low scan is not required in this case.
Page 10 of 42
Report No.: K1811291745E
The following table is the setting of spectrum analyzer and receiver.
Spectrum Parameter
Setting
Start ~Stop Frequency
9KHz~150KHz/RBW 200Hz for QP
Start ~Stop Frequency
150KHz~30MHz/RBW 9KHz for QP
Start ~Stop Frequency
30MHz~1000MHz/RBW 120KHz for QP
Start ~Stop Frequency
1GHz~26.5GHz
1.5MHz/5MHz for Peak, 1.5MHz/10Hz for Average
Receiver Parameter
Setting
Start ~Stop Frequency
9KHz~150KHz/RBW 200Hz for QP
Start ~Stop Frequency
150KHz~30MHz/RBW 9KHz for QP
Start ~Stop Frequency
30MHz~1000MHz/RBW 120KHz for QP
Test limit for Standard FCC15.249
Fundamental Frequency
Field Strength of Fundamental
Field Strength of Harmonics
(millivolts/meter)
(microvolts/meter)
900-928MHz
50
500
2400-2483.5MHz
50
500
5725-5875MHz
50
500
24.0-24.25GHz
250
2500
Test limit for Standard FCC 15.209
Frequency
Distance
Field Strengths Limit
(MHz)
Meters
μV/m
dB(μV)/m
0.009 ~ 0.490
300
2400/F(kHz)
---
0.490 ~ 1.705
30
24000/F(kHz)
---
1.705 ~ 30
30
30
---
30 ~ 88
100
40.0
88 ~ 216
150
43.5
216 ~ 960
200
46.0
960 ~ 1000
500
54.0
Above 1000
Other:74.0
dB(μV)/m
(Peak)
54.0
dB(μV)/m
(Average)
Remark: (1) Emission level dBμV = 20 log Emission level μV/m
(2) The smaller limit shall apply at the cross point between two frequency bands.
(3) Distance is the distance in meters between the measuring instrument, antenna and the
closest point of any part of the device or system.
Page 11 of 42
Report No.: K1811291745E
3.2. TEST SETUP
Radiated Emission Test-Setup Frequency Below 30MHz
RADIATED EMISSION TEST SETUP 30MHz-1000MHz
RADIATED EMISSION TEST SETUP ABOVE 1000MHz
Page 12 of 42
Report No.: K1811291745E
3.3. TEST RESULT
RADIATED EMISSION BELOW 30MHZ
No emission found between lowest internal used/generated frequencies to 30MHz.
RADIATED EMISSION 30MHz- 1GHZ FOR BR/EDR
True Wireless Bluetooth
EUT:
Model Name. :
Earphones
TS23
Temperature:
20 ℃
Relative Humidtity: 48%
Pressure:
1010 hPa
Test Voltage :
DC 3.7V
Test Mode :
Mode 7
Polarization :
Horizontal
Suspected Data List
Freq.
Level
Factor
Limit
Margin
Height
Angle
[MHz]
[dBμV/m]
[dB]
[dBμV/m]
[dB]
[cm]
[°]
40.6700
21.10
14.91
40.00
18.90
150
100
Horizontal
80.4400
15.48
10.15
40.00
24.52
150
110
Horizontal
162.890
20.71
14.65
43.50
22.79
150
150
Horizontal
23.93
18.13
46.00
22.07
200
120
Horizontal
357.860
506.270
28.22
22.32
46.00
17.78
150
350
Horizontal
697.360
32.16
25.92
46.00
13.84
200
50
Horizontal
NO.
Polarity
Page 13 of 42
True Wireless Bluetooth
EUT:
Model Name. :
Earphones
Report No.: K1811291745E
TS23
Temperature:
20 ℃
Relative Humidtity: 48%
Pressure:
1010 hPa
Test Voltage :
DC 3.7V
Test Mode :
Mode 7
Polarization :
Vertical
Suspected Data List
Freq.
Level
Factor
Limit
Margin
Height
Angle
[MHz]
[dBμV/m]
[dB]
[dBμV/m]
[dB]
[cm]
[°]
48.4300
20.99
14.71
40.00
19.01
100
240
Vertical
155.130
20.85
14.93
43.50
22.65
200
170
Vertical
232.730
20.79
14.25
46.00
25.21
150
260
Vertical
383.080
25.48
19.18
46.00
20.52
150
100
Vertical
552.830
29.17
23.31
46.00
16.83
100
180
Vertical
734.220
32.59
26.83
46.00
13.41
100
40
Vertical
NO.
Polarity
RESULT: PASS
Note:
Factor=Antenna Factor + Cable loss, Margin=Result-Limit.
The “Factor” value can be calculated automatically by software of measurement system.
The mode 7 is the worst case, and only the data of the worst case recorded in this test report.
Page 14 of 42
Report No.: K1811291745E
FIELD STRENGTH OF FUNDAMENTAL FOR BR/EDR
True Wireless Bluetooth
EUT:
Model Name. :
TS23
Earphones
Temperature:
20 ℃
Relative Humidtity:
48%
Pressure:
1010 hPa
Test Voltage :
DC 3.7V
Polarization :
Horizontal
Test Modulation :GFSK
Frequency
Meter Reading
Factor
Emission Level
Limits
Margin
(MHz)
(dBμV)
(dB)
(dBμV/m)
(dBμV/m)
(dB)
2402.021
80.90
13.46
94.36
114.00
-19.64
peak
2402.021
72.90
13.46
86.36
94.00
-7.64
AVG
2441.021
81.16
13.88
95.04
114.00
-18.96
peak
2441.021
73.17
13.88
87.05
94.00
-6.95
AVG
2480.021
81.03
14.11
95.14
114.00
-18.86
peak
2480.021
73.04
14.11
87.15
94.00
-6.85
AVG
Value Type
Remark:
Factor = Antenna Factor + Cable Loss – Pre-amplifier.
True Wireless Bluetooth
EUT:
Model Name. :
TS23
Earphones
Temperature:
20 ℃
Relative Humidtity:
48%
Pressure:
1010 hPa
Test Voltage :
DC 3.7V
Polarization :
Vertical
Test Modulation :GFSK
Frequency
Meter Reading
Factor
Emission Level
Limits
Margin
(MHz)
(dBμV)
(dB)
(dBμV/m)
(dBμV/m)
(dB)
2402.021
80.44
13.46
93.90
114.00
-20.10
peak
2402.021
72.35
13.46
85.81
94.00
-8.19
AVG
2441.021
80.58
13.88
94.46
114.00
-19.54
peak
2441.021
72.60
13.88
86.48
94.00
-7.52
AVG
2480.021
80.57
14.11
94.68
114.00
-19.32
peak
2480.021
72.58
14.11
86.69
94.00
-7.31
AVG
Remark:
Factor = Antenna Factor + Cable Loss – Pre-amplifier.
Value Type
Page 15 of 42
True Wireless Bluetooth
EUT:
Report No.: K1811291745E
Model Name. :
TS23
Earphones
Temperature:
20 ℃
Relative Humidtity:
48%
Pressure:
1010 hPa
Test Voltage :
DC 3.7V
Polarization :
Horizontal
Test Modulation :π /4-DQPSK
Frequency
Meter Reading
Factor
Emission Level
Limits
Margin
(MHz)
(dBμV)
(dB)
(dBμV/m)
(dBμV/m)
(dB)
2402.021
81.93
13.46
95.39
114.00
-18.61
peak
2402.021
73.90
13.46
87.36
94.00
-6.64
AVG
2441.021
82.12
13.88
96.00
114.00
-18.00
peak
2441.021
74.14
13.88
88.02
94.00
-5.98
AVG
2480.021
82.01
14.11
96.12
114.00
-17.88
peak
2480.021
74.10
14.11
88.21
94.00
-5.79
AVG
Value Type
Remark:
Factor = Antenna Factor + Cable Loss – Pre-amplifier.
True Wireless Bluetooth
EUT:
Model Name. :
TS23
Earphones
Temperature:
20 ℃
Relative Humidtity:
48%
Pressure:
1010 hPa
Test Voltage :
DC 3.7V
Polarization :
Vertical
Test Modulation :π /4-DQPSK
Frequency
Meter Reading
Factor
Emission Level
Limits
Margin
(MHz)
(dBμV)
(dB)
(dBμV/m)
(dBμV/m)
(dB)
2402.021
81.45
13.46
94.91
114.00
-19.09
peak
2402.021
73.37
13.46
86.83
94.00
-7.17
AVG
2441.021
81.62
13.88
95.50
114.00
-18.50
peak
2441.021
73.57
13.88
87.45
94.00
-6.55
AVG
2480.021
81.50
14.11
95.61
114.00
-18.39
peak
2480.021
73.51
14.11
87.62
94.00
-6.38
AVG
Remark:
Factor = Antenna Factor + Cable Loss – Pre-amplifier.
Value Type
Page 16 of 42
True Wireless Bluetooth
EUT:
Report No.: K1811291745E
Model Name. :
TS23
Earphones
Temperature:
20 ℃
Relative Humidtity:
48%
Pressure:
1010 hPa
Test Voltage :
DC 3.7V
Polarization :
Horizontal
Test Modulation :8DPSK
Frequency
Meter Reading
Factor
Emission Level
Limits
Margin
(MHz)
(dBμV)
(dB)
(dBμV/m)
(dBμV/m)
(dB)
2402.021
82.85
13.46
96.31
114.00
-17.69
peak
2402.021
74.88
13.46
88.34
94.00
-5.66
AVG
2441.021
83.07
13.88
96.95
114.00
-17.05
peak
2441.021
75.07
13.88
88.95
94.00
-5.05
AVG
2480.021
83.00
14.11
97.11
114.00
-16.89
peak
2480.021
75.09
14.11
89.20
94.00
-4.80
AVG
Value Type
Remark:
Factor = Antenna Factor + Cable Loss – Pre-amplifier.
True Wireless Bluetooth
EUT:
Model Name. :
TS23
Earphones
Temperature:
20 ℃
Relative Humidtity:
48%
Pressure:
1010 hPa
Test Voltage :
DC 3.7V
Polarization :
Vertical
Test Modulation :8DPSK
Frequency
Meter Reading
Factor
Emission Level
Limits
Margin
(MHz)
(dBμV)
(dB)
(dBμV/m)
(dBμV/m)
(dB)
2402.021
82.43
13.46
95.89
114.00
-18.11
peak
2402.021
74.41
13.46
87.87
94.00
-6.13
AVG
2441.021
82.62
13.88
96.50
114.00
-17.50
peak
2441.021
74.58
13.88
88.46
94.00
-5.54
AVG
2480.021
82.57
14.11
96.68
114.00
-17.32
peak
2480.021
74.56
14.11
88.67
94.00
-5.33
AVG
Remark:
Factor = Antenna Factor + Cable Loss – Pre-amplifier.
Value Type
Page 17 of 42
Report No.: K1811291745E
RADIATED EMISSION ABOVE 1GHZ FOR BR/EDR
True Wireless Bluetooth
EUT:
Model Name. :
TS23
Earphones
Temperature:
20 ℃
Relative Humidtity:
48%
Pressure:
1010 hPa
Test Voltage :
DC 3.7V
Test Mode :
Mode 7
Polarization :
Horizontal
Frequency
Meter Reading
Factor
Emission Level
Limits
Margin
(MHz)
(dBμV)
(dB)
(dBμV/m)
(dBμV/m)
(dB)
4804.026
42.22
7.12
49.34
74
-24.66
peak
4804.026
39.43
7.12
46.55
54
-7.45
AVG
7206.039
37.45
9.84
47.29
74
-26.71
peak
7206.039
34.21
9.84
44.05
54
-9.95
AVG
Value Type
Remark:
Factor = Antenna Factor + Cable Loss – Pre-amplifier.
True Wireless Bluetooth
EUT:
Model Name. :
Earphones
TS23
Temperature:
20 ℃
Relative Humidtity: 48%
Pressure:
1010 hPa
Test Voltage :
DC 3.7V
Test Mode :
Mode 7
Polarization :
Vertical
Frequency
Meter Reading
Factor
Emission Level
Limits
Margin
(MHz)
(dBμV)
(dB)
(dBμV/m)
(dBμV/m)
(dB)
4804.026
41.73
7.12
48.85
74
-25.15
peak
4804.026
38.21
7.12
45.33
54
-8.67
AVG
7206.039
36.65
9.84
46.49
74
-27.51
peak
7206.039
33.21
9.84
43.05
54
-10.95
AVG
Remark:
Factor = Antenna Factor + Cable Loss – Pre-amplifier.
Value Type
Page 18 of 42
True Wireless Bluetooth
EUT:
Report No.: K1811291745E
Model Name. :
Earphones
TS23
Temperature:
20 ℃
Relative Humidtity: 48%
Pressure:
1010 hPa
Test Voltage :
DC 3.7V
Test Mode :
Mode 8
Polarization :
Horizontal
Frequency
Meter Reading
Factor
Emission Level
Limits
Margin
(MHz)
(dBμV)
(dB)
(dBμV/m)
(dBμV/m)
(dB)
4882.032
42.25
7.12
49.37
74
-24.63
peak
4882.032
39.17
7.12
46.29
54
-7.71
AVG
7323.048
37.11
9.84
46.95
74
-27.05
peak
7323.048
34.01
9.84
43.85
54
-10.15
AVG
Value Type
Remark:
Factor = Antenna Factor + Cable Loss – Pre-amplifier.
True Wireless Bluetooth
EUT:
Model Name. :
TS23
Earphones
Temperature:
20 ℃
Relative Humidtity:
48%
Pressure:
1010 hPa
Test Voltage :
DC 3.7V
Test Mode :
Mode 8
Polarization :
Vertical
Frequency
Meter Reading
Factor
Emission Level
Limits
Margin
(MHz)
(dBμV)
(dB)
(dBμV/m)
(dBμV/m)
(dB)
4882.032
41.79
7.12
48.91
74
-25.09
peak
4882.032
38.58
7.12
45.7
54
-8.3
AVG
7323.048
38.14
9.84
47.98
74
-26.02
peak
7323.048
35.01
9.84
44.85
54
-9.15
AVG
Remark:
Factor = Antenna Factor + Cable Loss – Pre-amplifier.
Value Type
Page 19 of 42
True Wireless Bluetooth
EUT:
Report No.: K1811291745E
Model Name. :
Earphones
TS23
Temperature:
20 ℃
Relative Humidtity: 48%
Pressure:
1010 hPa
Test Voltage :
DC 3.7V
Test Mode :
Mode 9
Polarization :
Horizontal
Frequency
Meter Reading
Factor
Emission Level
Limits
Margin
(MHz)
(dBμV)
(dB)
(dBμV/m)
(dBμV/m)
(dB)
4960.042
43.17
7.12
50.29
74
-23.71
peak
4960.042
39.86
7.12
46.98
54
-7.02
AVG
7440.063
38.41
9.84
48.25
74
-25.75
peak
7440.063
34.92
9.84
44.76
54
-9.24
AVG
Value Type
Remark:
Factor = Antenna Factor + Cable Loss – Pre-amplifier.
True Wireless Bluetooth
EUT:
Model Name. :
Earphones
TS23
Temperature:
20 ℃
Relative Humidtity: 48%
Pressure:
1010 hPa
Test Voltage :
DC 3.7V
Test Mode :
Mode 9
Polarization :
Vertical
Frequency
Meter Reading
Factor
Emission Level
Limits
Margin
(MHz)
(dBμV)
(dB)
(dBμV/m)
(dBμV/m)
(dB)
4960.042
42.81
7.12
49.93
74
-24.07
peak
4960.042
38.63
7.12
45.75
54
-8.25
AVG
7440.063
37.45
9.84
47.29
74
-26.71
peak
7440.063
34.12
9.84
43.96
54
-10.04
AVG
Value Type
Remark:
Factor = Antenna Factor + Cable Loss – Pre-amplifier.
Note: Other emissions from 8G to 25 GHz are considered as ambient noise. No recording in the test report.
Factor=Antenna Factor + Cable loss - Amplifier gain, Margin=Measurement-Limit.
The “Factor” value can be calculated automatically by software of measurement system.
The 8DPSK modulation was the worst case and only the data of worst recorded in this report.
Page 20 of 42
Report No.: K1811291745E
4. BAND EDGE EMISSION
4.1. MEASUREMENT PROCEDURE
1. The EUT operates at hopping-off test mode. The lowest or highest channels are tested to verify the
largest transmission and spurious emissions power at the continuous transmission mode.
2. Max hold the trace of the setup 1, and the EUT operates at hopping-on test mode to verify the largest
spurious emissions power.
3. Set the spectrum analyzer in the following setting in order to capture the lower and upper band-edges of
the emission.
Start frequency(MHz)
Stop frequency(MHz)
2200
2405
2478
2500
4.2 TEST SETUP
RADIATED EMISSION TEST SETUP
Page 21 of 42
Report No.: K1811291745E
4.3 RADIATED TEST RESULT
FOR BR/EDR
(Worst modulation: 8DPSK)
TEST PLOT OF BAND EDGE FOR LOW CHANNEL-Horizontal
Page 22 of 42
Report No.: K1811291745E
TEST PLOT OF BAND EDGE FOR LOW CHANNEL -Vertical
Page 23 of 42
Report No.: K1811291745E
TEST PLOT OF BAND EDGE FOR HIGH CHANNEL -Horizontal
Page 24 of 42
Report No.: K1811291745E
TEST PLOT OF BAND EDGE FOR HIGH CHANNEL-Vertical
RESULT: PASS
Note: Factor=Antenna Factor + Cable loss - Amplifier gain, Over=Measure-Limit.
The “Factor” value can be calculated automatically by software of measurement system.
Hopping on mode and Hopping off mode have been tested, but only worst case reported.
Page 25 of 42
Report No.: K1811291745E
5. BANDWIDTH
5.1. MEASUREMENT PROCEDURE
1. The EUT was placed on the top of the turntable 1.5 meter above ground. The phase center of the
receiving antenna mounted on the top of a height-variable antenna tower was placed 3 meters far
away from the turntable.
2, Set the EUT Work on the operation frequency individually.
3. Set Span = approximately 2 to 5 times the OBW, centered on a hoping channel
The nominal IF filter bandwidth (3 dB RBW) shall be in the range of 1% to 5% of the OBW and video
bandwidth (VBW) shall be approximately 3* RBW; Sweep = auto; Detector function = peak
4. Set SPA Trace 1 Max hold, then View.
5.2. TEST SETUP
Page 26 of 42
Report No.: K1811291745E
5.3. TEST RESULT
TEST ITEM
20DB BANDWIDTH
TEST MODULATION
GFSK for BR/EDR
Test Data (MHz)
Criteria
Low Channel
1.109
PASS
Middle Channel
1.084
PASS
High Channel
1.078
PASS
TEST PLOT OF BANDWIDTH FOR LOW CHANNEL
Page 27 of 42
Report No.: K1811291745E
TEST PLOT OF BANDWIDTH FOR MIDDLE CHANNEL
TEST PLOT OF BANDWIDTH FOR HIGH CHANNEL
Page 28 of 42
TEST ITEM
20DB BANDWIDTH
TEST MODULATION
π /4-DQPSK for BR/EDR
Report No.: K1811291745E
Test Data (MHz)
Criteria
Low Channel
1.390
PASS
Middle Channel
1.375
PASS
High Channel
1.381
PASS
TEST PLOT OF BANDWIDTH FOR LOW CHANNEL
Page 29 of 42
Report No.: K1811291745E
TEST PLOT OF BANDWIDTH FOR MIDDLE CHANNEL
TEST PLOT OF BANDWIDTH FOR HIGH CHANNEL
Page 30 of 42
TEST ITEM
20DB BANDWIDTH
TEST MODULATION
8DPSK for BR/EDR
Report No.: K1811291745E
Test Data (MHz)
Criteria
Low Channel
1.385
PASS
Middle Channel
1.385
PASS
High Channel
1.383
PASS
TEST PLOT OF BANDWIDTH FOR LOW CHANNEL
Page 31 of 42
Report No.: K1811291745E
TEST PLOT OF BANDWIDTH FOR MIDDLE CHANNEL
TEST PLOT OF BANDWIDTH FOR HIGH CHANNEL
Page 32 of 42
Report No.: K1811291745E
6. FCC LINE CONDUCTED EMISSION TEST
6.1. LIMITS OF LINE CONDUCTED EMISSION TEST
Maximum RF Line Voltage
Frequency
Q.P.( dBuV)
Average( dBuV)
150kHz~500kHz
66-56
56-46
500kHz~5MHz
56
46
5MHz~30MHz
60
50
Note:
1. The lower limit shall apply at the transition frequency.
2. The limit decreases linearly with the logarithm of the frequency in the range 0.15 MHz to 0.50 MHz.
6.2. BLOCK DIAGRAM OF LINE CONDUCTED EMISSION TEST
EUT & Support
Units
Page 33 of 42
Report No.: K1811291745E
6.3. PRELIMINARY PROCEDURE OF LINE CONDUCTED EMISSION TEST
1. The equipment was set up as per the test configuration to simulate typical actual usage per the user’s
manual. When 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 (see Test Facility for the dimensions of the ground
plane used). When the EUT is a floor-standing equipment, it is placed on the ground plane which has a
3-12 mm non-conductive covering to insulate the EUT from the ground plane.
2. Support equipment, if needed, was placed as per ANSI C63.10.
3. All I/O cables were positioned to simulate typical actual usage as per ANSI C63.10.
4. All support equipments received DC 12V/60Hz power from a LISN, if any.
5. The EUT received DC 5V power from adapter which received DC 12V/60Hz power from a LISN.
6. The 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.
9. The test mode(s) were scanned during the preliminary test.
Then, the EUT configuration and cable configuration of the above highest emission level were recorded for
reference of final testing.
6.4. FINAL PROCEDURE OF LINE CONDUCTED EMISSION TEST
1. EUT and support equipment was set up on the test bench as per step 2 of the preliminary test.
2. A scan was taken on both power lines, Line 1 and Line 2, recording at least the six highest emissions.
Emission frequency and amplitude were recorded into a computer in which correction factors were
used to calculate the emission level and compare reading to the applicable limit. If EUT emission level
was less –2dB to the A.V. limit in Peak mode, then the emission signal was re-checked using Q.P and
Average detector.
3. The test data of the worst case condition(s) was reported on the Summary Data page.
6.5. TEST RESULT OF LINE CONDUCTED EMISSION TEST
N/A
Note: The BT function of EUT doesn’t work when charging.
Page 34 of 42
Report No.: K1811291745E
APPENDIX A: PHOTOGRAPHS OF TEST SETUP
FCC RADIATED EMISSION TEST SETUP
Page 35 of 42
Report No.: K1811291745E
Page 36 of 42
Report No.: K1811291745E
APPENDIX B: PHOTOGRAPHS OF EUT
TOTAL VIEW OF EUT
TOP VIEW OF EUT
Page 37 of 42
BOTTOM VIEW OF EUT
FRONT VIEW OF EUT
Report No.: K1811291745E
Page 38 of 42
BACK VIEW OF EUT
LEFT VIEW OF EUT
Report No.: K1811291745E
Page 39 of 42
RIGHT VIEW OF EUT
VIEW OF EUT (PORT)
Report No.: K1811291745E
Page 40 of 42
Left
OPEN VIEW OF EUT
VIEW OF BATTERY
Report No.: K1811291745E
Page 41 of 42
Report No.: K1811291745E
INTERNAL VIEW OF EUT-1
INTERNAL VIEW OF EUT-2
Antenna
Page 42 of 42
INTERNAL VIEW OF EUT-3
----END OF REPORT----
Report No.: K1811291745E
Download: TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Mirror Download [FCC.gov]TS23 True Wireless Bluetooth Earphones Test Report Measurement Report SPRITE LIMITED
Document ID4114316
Application ID1RxkXa6aK8lvpHio+MKxFQ==
Document DescriptionTest Report
Short Term ConfidentialNo
Permanent ConfidentialNo
SupercedeNo
Document TypeTest Report
Display FormatAdobe Acrobat PDF - pdf
Filesize205.85kB (2573129 bits)
Date Submitted2018-12-23 00:00:00
Date Available2018-12-23 00:00:00
Creation Date2018-12-17 16:25:34
Producing SoftwareMicrosoft® Word 2016
Document Lastmod2018-12-20 09:53:53
Document TitleMeasurement Report
Document CreatorMicrosoft® Word 2016
Document Author: Kent

Source Exif Data [exif.tools]:
File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.7
Linearized                      : No
Author                          : Kent
Create Date                     : 2018:12:17 16:25:34+08:00
Modify Date                     : 2018:12:20 09:53:53+08:00
Language                        : zh-CN
Tagged PDF                      : Yes
XMP Toolkit                     : Adobe XMP Core 5.4-c005 78.147326, 2012/08/23-13:03:03
Producer                        : Microsoft® Word 2016
Format                          : application/pdf
Title                           : Measurement Report
Creator                         : Kent
Creator Tool                    : Microsoft® Word 2016
Metadata Date                   : 2018:12:20 09:53:53+08:00
Document ID                     : uuid:93CF9E90-C425-4C46-81A9-8F1BC1445065
Instance ID                     : uuid:54e65117-ad2a-4811-8149-cf8ded183798
Page Count                      : 42