A3391 Soundcore Rave Test Report ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT Anker Innovations Limited

Anker Innovations Limited Soundcore Rave

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FCC 47 CFR PART 15 SUBPART C
CERTIFICATION TEST REPORT for BLE
For
Soundcore Rave
MODEL No.: A3391
FCC ID: 2AOKB-A3391
Trade Mark: Soundcore
REPORT NO: ES181031025W02
ISSUE DATE: December 13, 2018
Prepared for
Anker Innovations Limited
Room 1318-19, Hollywood Plaza, 610 Nathan Road, Mongkok, Kowloon,
Hong Kong
Prepared by
EMTEK(SHENZHEN) CO., LTD.
Bldg 69, Majialong Industry Zone, Nanshan District, Shenzhen,
Guangdong, China
TEL: 86-755-26954280
FAX: 86-755-26954282
TRF No.:FCC 15.247/A
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Table of Contents
TEST RESULT CERTIFICATION ............................................................................................................. 3
EUT TECHNICAL DESCRIPTION ........................................................................................................... 5
SUMMARY OF TEST RESULT ................................................................................................................ 6
TEST METHODOLOGY ........................................................................................................................... 7
4.1
4.2
4.3
GENERAL DESCRIPTION OF APPLIED STANDARDS ................................................................ 7
MEASUREMENT EQUIPMENT USED .......................................................................................... 7
DESCRIPTION OF TEST MODES................................................................................................. 8
FACILITIES AND ACCREDITATIONS ..................................................................................................... 9
5.1
5.2
FACILITIES .................................................................................................................................... 9
LABORATORY ACCREDITATIONS AND LISTINGS ..................................................................... 9
TEST SYSTEM UNCERTAINTY ............................................................................................................ 10
SETUP OF EQUIPMENT UNDER TEST ............................................................................................... 11
7.1
7.2
7.3
7.4
RADIO FREQUENCY TEST SETUP 1 ......................................................................................... 11
RADIO FREQUENCY TEST SETUP 2 ......................................................................................... 11
CONDUCTED EMISSION TEST SETUP ..................................................................................... 12
SUPPORT EQUIPMENT ............................................................................................................. 13
TEST REQUIREMENTS......................................................................................................................... 14
8.1
8.2
8.3
8.4
8.5
8.6
8.7
DTS 6DB BANDWIDTH ............................................................................................................... 14
MAXIMUM PEAK CONDUCTED OUTPUT POWER ................................................................... 17
MAXIMUM POWER SPECTRAL DENSITY ................................................................................. 20
UNWANTED EMISSIONS IN NON-RESTRICTED FREQUENCY BANDS ................................. 23
RADIATED SPURIOUS EMISSION ............................................................................................. 28
CONDUCTED EMISSIONS TEST ............................................................................................... 40
ANTENNA APPLICATION ............................................................................................................ 43
TRF No.:FCC 15.247/A
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TEST RESULT CERTIFICATION
Anker Innovations Limited
Room 1318-19, Hollywood Plaza, 610 Nathan Road, Mongkok, Kowloon, Hong
Applicant:
Kong
Anker Innovations Limited
Room 1318-19, Hollywood Plaza, 610 Nathan Road, Mongkok, Kowloon, Hong
Manufacture:
Kong
EUT Description:
Soundcore Rave
Model Number:
A3391
Trade Mark:
Soundcore
File Number:
ES181031025W02
Date of Test:
November 01, 2018 to December 11, 2018
Measurement Procedure Used:
APPLICABLE STANDARDS
STANDARD
TEST RESULT
FCC 47 CFR Part 2 , Subpart J
FCC 47 CFR Part 15 , Subpart C
PASS
The above equipment was tested by EMTEK(SHENZHEN) CO., LTD. The test data, data evaluation, test
procedures, and equipment configurations shown in this report were made in accordance with the
procedures given in ANSI C63.10 (2013) and the energy emitted by the sample EUT tested as described in
this report is in compliance with the requirements of FCC Rules Part 2 2015 and Part 15.247 2015
The test results of this report relate only to the tested sample identified in this report
Date of Test :
November 01, 2018 to December 11, 2018
Prepared by :
Abel Wu/Editor
Reviewer :
Joe Xia/Supervisor
Approve & Authorized Signer :
TRF No.:FCC 15.247/A
Lisa Wang/Manager
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Modified Information
Version
Report No.
Revision Date
Summary
Ver.1.0
ES181031025W02
Original Report
TRF No.:FCC 15.247/A
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EUT TECHNICAL DESCRIPTION
Characteristics
Description
Modulation
GFSK modulation
Operating Frequency
Range
2402-2480MHz
Number of Channels
40 channels
Transmit Power Max
3.35 dBm
Antenna Type
FPC Antenna
Antenna Gain
3.75 dBi
Power supply
Temperature Range
100-240V~, 50Hz/60Hz
DC 14.8V from battery
0°C ~ +40°C
Note: for more details, please refer to the User’s manual of the EUT.
TRF No.:FCC 15.247/A
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SUMMARY OF TEST RESULT
FCC Part Clause
15.247(a)(2)
15.247(b)(3)
15.247(e)
15.247(d)
15.247(d)
15.209
15.247(d)
15.209
15.207
15.203
Test Parameter
DTS (6dB) Bandwidth
Maximum Peak Conducted Output Power
Maximum Power Spectral Density Level
Unwanted Emission Into Non-Restricted
Frequency Bands
Unwanted Emission Into Restricted Frequency
Bands (conducted)
Radiated Spurious Emission
Verdict
PASS
PASS
PASS
PASS
Remark
PASS
PASS
Conducted Emission Test
PASS
Antenna Application
PASS
NOTE1: N/A (Not Applicable)
NOTE2: According to FCC OET KDB 558074, the report use radiated
measurements in the restricted frequency bands. In addition, the radiated
test is also performed to ensure the emissions emanating from the device
cabinet also comply with the applicable limits.
RELATED SUBMITTAL(S) / GRANT(S):
This submittal(s) (test report) is intended for FCC ID: 2AOKB-A3391 filing to comply with Section 15.247 of
the FCC Part 15, Subpart C Rules.
TRF No.:FCC 15.247/A
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TEST METHODOLOGY
4.1
GENERAL DESCRIPTION OF APPLIED STANDARDS
According to its specifications, the EUT must comply with the requirements of the following standards:
FCC 47 CFR Part 2, Subpart J
FCC 47 CFR Part 15, Subpart C
DA 00-705
4.2 MEASUREMENT EQUIPMENT USED
4.2.1
Conducted Emission Test Equipment
EQUIPMENT
TYPE
Test Receiver
L.I.S.N.
SERIAL
NUMBER
828985/018
8129203
LAST CAL.
DUE CAL.
Rohde & Schwarz
Schwarzbeck
MODEL
NUMBER
ESCS30
NNLK8129
05/20/2018
05/20/2018
1 Year
1 Year
50Ω Coaxial Switch
Anritsu
MP59B
M20531
N/A
N/A
Pulse Limiter
Rohde & Schwarz
ESH3-Z2
100006
05/20/2018
1 Year
Voltage Probe
Rohde & Schwarz
TK9416
N/A
05/20/2018
1 Year
I.S.N
Rohde & Schwarz
ENY22
1109.9508.02
05/20/2018
1 Year
MODEL
NUMBER
ESU
8447D
VULB9163
PLA-1030/B
BBHA 9170
BBHA 9120
AK9513
N/A
AK9513
AK9513
SERIAL
NUMBER
1302.6005.26
2944A07999
142
1029
BBHA9170399
D143
ACRX1
FP2RX2
CRPX1
CRRX2
LAST CAL.
DUE CAL.
05/20/2018
05/20/2018
05/20/2018
05/20/2018
05/20/2018
05/20/2018
05/20/2018
05/20/2018
05/20/2018
05/20/2018
1 Year
1 Year
1 Year
1 Year
1 Year
1 Year
1 Year
1 Year
1 Year
1 Year
4.2.2
Radiated Emission Test Equipment
EQUIPMENT
TYPE
EMI Test Receiver
Pre-Amplifier
Bilog Antenna
Loop Antenna
Horn Antenna
Horn Antenna
Cable
Cable
Cable
Cable
4.2.3
MFR
MFR
Rohde & Schwarz
HP
Schwarzbeck
ARA
Schwarzbeck
Schwarzbeck
Schwarzbeck
Rosenberger
Schwarzbeck
Schwarzbeck
Radio Frequency Test Equipment
EQUIPMENT
TYPE
MFR
MODEL
NUMBER
SERIAL
NUMBER
LAST CAL.
DUE CAL.
Spectrum Analyzer
Signal Analyzer
Power meter
Power sensor
Agilent
Agilent
Anritsu
Anritsu
E4407B
N9010A
ML2495A
MA2411B
88156318
My53470879
0824006
0738172
05/20/2018
05/20/2018
05/20/2018
05/20/2018
1 Year
1 Year
1 Year
1 Year
Remark: Each piece of equipment is scheduled for calibration once a year.
TRF No.:FCC 15.247/A
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4.3
DESCRIPTION OF TEST MODES
The EUT has been tested under its typical operating condition.
The EUT configuration for testing is installed on RF field strength measurement to meet the Commissions
requirement and operating in a manner which intends to maximize its emission characteristics in a
continuous normal application.
The Transmitter was operated in the normal operating mode. The TX frequency was fixed which was for the
purpose of the measurements.
Test of channel included the lowest and middle and highest frequency to perform the test, then record on this
report.
Those data rates (Bluetooth 5.0 DTS) were used for all test.
Pre-defined engineering program for regulatory testing used to control the EUT for staying in continuous
transmitting and receiving mode is programmed.
Frequency and Channel list for Bluetooth 5.0 DTS:
Frequency
Channel
(MHz)
2402
19
2404
20
2406
21
…
…
…
Note: fc=2402MHz+k×1MHz k=1 to 39
Channel
Frequency
(MHz)
2440
2442
2444
…
Channel
…
37
38
39
Frequency
(MHz)
…
2476
2478
2480
Test Frequency and channel for Bluetooth 5.0 DTS:
Lowest Frequency
Channel
TRF No.:FCC 15.247/A
Frequency
(MHz)
2402
Middle Frequency
Channel
19
Frequency
(MHz)
2440
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Highest Frequency
Channel
39
Frequency
(MHz)
2480
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5.1
FACILITIES AND ACCREDITATIONS
FACILITIES
All measurement facilities used to collect the measurement data are located at
Bldg 69, Majialong Industry Zone District, Nanshan District, Shenzhen, China
The sites are constructed in conformance with the requirements of ANSI C63.7, ANSI C63.10 and CISPR
Publication 22.
5.2 LABORATORY ACCREDITATIONS AND LISTINGS
Site Description
EMC Lab.
: Accredited by CNAS, 2016.10.24
The certificate is valid until 2022.10.23
The Laboratory has been assessed and proved to be in compliance
with CNAS-CL01: 2006(identical to ISO/IEC17025: 2005)
The Certificate Registration Number is L2291
: Accredited by TUV Rheinland Shenzhen, 2010.5.25
The Laboratory has been assessed according to the requirements
ISO/IEC 17025.
: Accredited by FCC, August 06, 2018
The certificate is valid until August 07, 2020
Designation Number: CN1204
Test Firm Registration Number: 882943
: Accredited by Industry Canada, November 09, 2018
The Conformity Assessment Body Identifier is CN0008.
TRF No.:FCC 15.247/A
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TEST SYSTEM UNCERTAINTY
The following measurement uncertainty levels have been estimated for tests performed on the
apparatus:
Parameter
Uncertainty
Radio Frequency
±1x10^-5
Maximum Peak Output Power Test
±1.0dB
Conducted Emissions Test
±2.0dB
Radiated Emission Test
±2.0dB
Power Density
±2.0dB
Occupied Bandwidth Test
±1.0dB
Band Edge Test
±3dB
All emission, radiated
±3dB
Antenna Port Emission
±3dB
Temperature
±0.5℃
Humidity
±3%
Measurement Uncertainty for a level of Confidence of 95%
TRF No.:FCC 15.247/A
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SETUP OF EQUIPMENT UNDER TEST
7.1 RADIO FREQUENCY TEST SETUP 1
The Bluetooth 5.0 DTS component’s antenna ports(s) of the EUT are connected to the measurement
instrument per an appropriate attenuator. The EUT is controlled by PC/software to emit the specified signals
for the purpose of measurements.
7.2 RADIO FREQUENCY TEST SETUP 2
The test site semi-anechoic chamber has met the requirement of NSA tolerance 4 dB according to the
standards: ANSI C63.10. The test distance is 3m.The setup is according to the requirements in Section
13.1.4.1 of ANSI C63.10-2013 and CAN/CSA-CEI/IEC CISPR 22.
Below 30MHz:
The EUT is placed on a turntable 0.8 meters above the ground in the chamber, 3 meter away from the
antenna (loop antenna). The Antenna should be positioned with its plane vertical at the specified distance
from the EUT and rotated about its vertical axis for maximum response at each azimuth about the EUT. The
center of the loop shall be 1 m above the ground. For certain applications, the loop antenna plane may also
need to be positioned horizontally at the specified distance from the EUT.
30MHz-1GHz:
The EUT is placed on a turntable 0.8 meters above the ground in the chamber, 3 meter away from the
antenna. The maximal emission value is acquired by adjusting the antenna height, polarisation and turntable
azimuth. Normally, the height range of antenna is 1 m to 4 m, the azimuth range of turntable is 0° to 360°,
and the receive antenna has two polarizations Vertical (V) and Horizontal (H).
Above 1GHz:
The EUT is placed on a turntable 1.5 meters above the ground in the chamber, 3 meter away from the
antenna. The maximal emission value is acquired by adjusting the antenna height, polarisation and turntable
azimuth. Normally, the height range of antenna is 1 m to 4 m, the azimuth range of turntable is 0° to 360°,
and the receive antenna has two polarizations Vertical (V) and Horizontal (H).
(a) Radiated Emission Test Set-Up, Frequency Below 30MHz
TRF No.:FCC 15.247/A
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(b) Radiated Emission Test Set-Up, Frequency Below 1000MHz
(c) Radiated Emission Test Set-Up, Frequency above 1000MHz
7.3 CONDUCTED EMISSION TEST SETUP
The mains cable of the EUT (maybe per AC/DC Adapter) must be connected to LISN. The LISN
shall be placed 0.8 m from the boundary of EUT and bonded to a ground reference plane for
LISN mounted on top of the ground reference plane. This distance is between the closest points
of the LISN and the EUT. All other units of the EUT and associated equipment shall be at least
0.8m from the LISN.
Ground connections, where required for safety purposes, shall be connected to the reference
ground point of the LISN and, where not otherwise provided or specified by the manufacturer,
shall be of same length as the mains cable and run parallel to the mains connection at a
separation distance of not more than 0.1 m.
According to the requirements in Section 13.1.4.1 of ANSI C63.10-2013 Conducted emissions
from the EUT measured in the frequency range between 0.15 MHz and 30 MHz using CISPR
Quasi-Peak and average detector mode.
TRF No.:FCC 15.247/A
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7.4 SUPPORT EQUIPMENT
Item Equipment Mfr/Brand
Model/Type No.
Series No.
Note
Notes:
1. All the equipment/cables were placed in the worst-case configuration to maximize the emission during
the test.
2. Grounding was established in accordance with the manufacturer’s requirements and conditions for the
intended use.
TRF No.:FCC 15.247/A
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TEST REQUIREMENTS
8.1 DTS 6DB BANDWIDTH
8.1.1
Applicable Standard
According to FCC Part 15.247(a)(2) and DA 00-705
8.1.2
Conformance Limit
The minimum -6 dB bandwidth shall be at least 500 kHz.
8.1.3
Test Configuration
Test according to clause 7.1 radio frequency test setup 1
8.1.4
Test Procedure
The EUT was operating in Bluetooth 5.0 DTS mode and controlled its channel. Printed out the test result
from the spectrum by hard copy function.
The RF output of EUT was connected to the spectrum analyzer by RF cable and attenuator. The path loss
was compensated to the results for each measurement.
Set to the maximum power setting and enable the EUT transmit continuously
Set RBW = 100 kHz.
Set the video bandwidth (VBW) =300 kHz.
Set Span=2 times OBW
Set Detector = Peak.
Set Trace mode = max hold.
Set Sweep = auto couple.
Allow the trace to stabilize.
Measure the maximum width of the emission that is constrained by the frequencies associated with the two
outermost amplitude points (upper and lower frequencies) that are attenuated by 6 dB relative to the
maximum level measured in the fundamental emission.
Measure and record the results in the test report.
Test Results
Temperature :
Humidity :
Operation
Mode
Bluetooth
5.0 DTS
Channel
Number
19
39
TRF No.:FCC 15.247/A
25℃
53 %
Test Date :
Test By:
Channel Frequency
(MHz)
2402
2440
2480
December 11, 2018
KK
Measurement Bandwidth
(kHz)
684.71
689.81
690.32
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Limit
(kHz)
>500
>500
>500
Verdict
PASS
PASS
PASS
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Test Model
DTS (6dB) Bandwidth
Bluetooth 5.0DTS
Channel 0: 2402MHz
DTS (6dB) Bandwidth
Test Model
TRF No.:FCC 15.247/A
Bluetooth 5.0DTS
Channel 19: 2440MHz
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Test Model
TRF No.:FCC 15.247/A
DTS (6dB) Bandwidth
Bluetooth 5.0DTS
Channel 39: 2480MHz
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8.2 MAXIMUM PEAK CONDUCTED OUTPUT POWER
8.2.1
Applicable Standard
According to FCC Part 15.247(b)(3) and DA 00-705
8.2.2
Conformance Limit
The maximum peak conducted output power of the intentional radiator for systems using digital modulation
in the 2400 - 2483.5 MHz bands shall not exceed: 1 Watt (30dBm).
8.2.3
Test Configuration
Test according to clause 7.1 radio frequency test setup 1
8.2.4
Test Procedure
 According to FCC Part15.247(b)(3)
As an alternative to a peak power measurement, compliance with the one Watt limit can be based on a
measurement of the maximum conducted output power. For smart system, Maximum Conducted Output
Power is defined as the total transmit power delivered to all antennas and antenna elements averaged
across all symbols in the signaling alphabet when the transmitter is operating at its maximum power control
level. Power must be summed across all antennas and antenna elements. If multiple modes of operation are
possible (e.g., alternative modulation methods), the maximum conducted output power is the highest total
transmit power occurring in any mode.
Set the RBW ≧DTS bandwidth(about 1MHz).
Set VBW =3*RBW(about 3MHz)
Set the span ≧3*RBW
Set Sweep time = auto couple.
Set Detector = peak.
Set Trace mode = max hold.
Allow trace to fully stabilize. Use peak marker function to determine the peak amplitude level.
 According to FCC Part 15.247(b)(4):
Conducted output power limit specified in paragraph (b) of this section is based on the use of antennas with
directional gains that do not exceed 6 dBi. If transmitting antennas of directional gain greater than 6 dBi are
used, the conducted output power from the intentional radiator shall be reduced below the stated values in
paragraphs (b)(3) of this section, as appropriate, by the amount in dB that the directional gain of the antenna
exceeds 6 dBi.
Test Results
Temperature :
Humidity :
Operation
Mode
Bluetooth
5.0DTS
Channel
Number
19
39
TRF No.:FCC 15.247/A
25℃
53 %
Test Date :
Test By:
Channel Frequency
(MHz)
2402
2440
2480
December 11, 2018
KK
Measurement Level
(dBm)
3.32
3.35
3.06
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Limit
(dBm)
30
30
30
Verdict
PASS
PASS
PASS
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Test Model
Test Model
TRF No.:FCC 15.247/A
Maximum Conducted Output Power
Bluetooth 5.0 DTS
Channel 0: 2402MHz
GFSK modulation
Maximum Conducted Output Power
Bluetooth 5.0 DTS
Channel 19: 2440MHz
GFSK modulation
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Test Model
TRF No.:FCC 15.247/A
Maximum Conducted Output Power
Bluetooth 5.0 DTS
Channel 39: 2480MHz
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GFSK modulation
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8.3 MAXIMUM POWER SPECTRAL DENSITY
8.3.1
Applicable Standard
According to FCC Part 15.247(e) and DA 00-705
8.3.2
Conformance Limit
The transmitter power spectral density conducted from the transmitter to the antenna shall not be greater
than 8 dBm in any 3 kHz band during any time interval of continuous transmission.
8.3.3
Test Configuration
Test according to clause 7.1 radio frequency test setup 1
8.3.4
Test Procedure
This procedure shall be used if maximum peak conducted output power was used to demonstrate
compliance
The transmitter output (antenna port) was connected to the spectrum analyzer
Set analyzer center frequency to DTS channel center frequency.
Set the span to 1.5 times the DTS bandwidth.
Set the RBW to: 3 kHz
Set the VBW to: 10 kHz.
Set Detector = peak.
Set Sweep time = auto couple.
Set Trace mode = max hold.
Allow trace to fully stabilize.
Use the peak marker function to determine the maximum amplitude level within the RBW.
8.3.5
Test Results
Temperature :
Humidity :
25℃
53 %
Test Date :
Test By:
December 11, 2018
KK
Operation
Mode
Channel
Number
Channel Frequency
(MHz)
Measurement Level
(dBm/3kHz)
Limit
(dBm/3kHz)
Verdict
Bluetooth
5.0 DTS
19
39
2402
2440
2480
-11.99
-12.01
-12.19
<8
<8
<8
PASS
PASS
PASS
Note: N/A
TRF No.:FCC 15.247/A
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Test Model
Test Model
TRF No.:FCC 15.247/A
Power Spectral Density
Bluetooth 5.0 DTS
Channel 0: 2402MHz
Power Spectral Density
Bluetooth 5.0 DTS
Channel 19: 2440MHz
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Test Model
TRF No.:FCC 15.247/A
Power Spectral Density
Bluetooth 5.0 DTS
Channel 39: 2480MHz
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8.4 UNWANTED EMISSIONS IN NON-RESTRICTED FREQUENCY BANDS
8.4.1
Applicable Standard
According to FCC Part 15.247(d) and DA 00-705
8.4.2
Conformance Limit
According to FCC Part 15.247(d):
In any 100 kHz bandwidth outside the frequency band in which the spread spectrum or digitally modulated
intentional radiator is operating, the radio frequency power that is produced by the intentional radiator shall
be at least 20 dB below that in the 100 kHz bandwidth within the band that contains the highest level of the
desired power, based on either an RF conducted or a radiated measurement, provided the transmitter
demonstrates compliance with the peak conducted power limits. If the transmitter complies with the
conducted power limits based on the use of RMS averaging over a time interval, as permitted under
paragraph (b)(3) of this section, the attenuation required under this paragraph shall be 30 dB instead of 20
dB.
8.4.3
Test Configuration
Test according to clause 7.1 radio frequency test setup 1
8.4.4
Test Procedure
The transmitter output (antenna port) was connected to the spectrum analyzer
 Reference level measurement
Establish a reference level by using the following procedure:
Set instrument center frequency to DTS channel center frequency.
Set the span to = 1.5 times the DTS bandwidth.
Set the RBW = 100 kHz.
Set the VBW ≥ 3 x RBW.
Set Detector = peak.
Set Sweep time = auto couple.
Set Trace mode = max hold.
Allow trace to fully stabilize.
Use the peak marker function to determine the maximum PSD level.
Note that the channel found to contain the maximum PSD level can be used to establish the reference level.
 Emission level measurement
Set the center frequency and span to encompass frequency range to be measured.
Set the RBW = 100 kHz.
Set the VBW =300 kHz.
Set Detector = peak
Sweep time = auto couple.
Trace mode = max hold.
Allow trace to fully stabilize.
Use the peak marker function to determine the maximum amplitude level.
Ensure that the amplitude of all unwanted emissions outside of the authorized frequency band (excluding
restricted frequency bands) are attenuated by at least the minimum requirements . Report the three highest
emissions relative to the limit.
8.4.5
Test Results
TRF No.:FCC 15.247/A
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Test Model
Test Model
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PSD(Power Spectral Density ) RBW=100kHz
Bluetooth 5.0 DTS
Channel 0: 2402MHz
Unwanted Emissions in non-restricted frequency bands
Bluetooth 5.0 DTS
Channel 0: 2402MHz
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Test Model
Test Model
TRF No.:FCC 15.247/A
Band edge
Bluetooth 5.0 DTS
Channel 0: 2402MHz
PSD(Power Spectral Density ) RBW=100kHz
Bluetooth 5.0 DTS
Channel 19: 2440MHz
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Test Model
Test Model
TRF No.:FCC 15.247/A
Unwanted Emissions In Non-Restricted Frequency Bands
Bluetooth 5.0 DTS
Channel 19: 2440MHz
PSD(Power Spectral Density ) RBW=100kHz
Bluetooth 5.0 DTS
Channel 19: 2480MHz
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Test Model
Test Model
TRF No.:FCC 15.247/A
Unwanted Emissions In Non-Restricted Frequency Bands
Bluetooth 5.0 DTS
Channel 39: 2480MHz
Band edge
Bluetooth 5.0 DTS
Channel 39: 2480MHz
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8.5 RADIATED SPURIOUS EMISSION
8.5.1
Applicable Standard
According to FCC Part 15.247(d) and 15.209 and DA 00-705
8.5.2
Conformance Limit
According to FCC Part 15.247(d): 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) (see §15.205(c)).
According to FCC Part15.205, Restricted bands
MHz
MHz
MHz
GHz
0.090-0.110
16.42-16.423
399.9-410
4.5-5.15
10.495-0.505
16.69475-16.69525
608-614
5.35-5.46
2.1735-2.1905
16.80425-16.80475
960-1240
7.25-7.75
4.125-4.128
25.5-25.67
1300-1427
8.025-8.5
4.17725-4.17775
37.5-38.25
1435-1626.5
9.0-9.2
4.20725-4.20775
73-74.6
1645.5-1646.5
9.3-9.5
6.215-6.218
74.8-75.2
1660-1710
10.6-12.7
6.26775-6.26825
123-138
2200-2300
14.47-14.5
8.291-8.294
149.9-150.05
2310-2390
15.35-16.2
8.362-8.366
156.52475-156.52525
2483.5-2500
17.7-21.4
8.37625-8.38675
156.7-156.9
2690-2900
22.01-23.12
8.41425-8.41475
162.0125-167.17
3260-3267
23.6-24.0
12.29-12.293
167.72-173.2
3332-3339
31.2-31.8
12.51975-12.52025
240-285
3345.8-3358
36.43-36.5
12.57675-12.57725
322-335.4
3600-4400
(2)
13.36-13.41
According to FCC Part15.205, the level of any transmitter spurious emission in Restricted bands shall not
exceed the level of the emission specified in the following table
Restricted Frequency(MHz) Field Strength (μV/m)
Field Strength (dBμV/m)
Measurement Distance
0.009-0.490
2400/F(KHz)
20 log (uV/m)
300
0.490-1.705
2400/F(KHz)
20 log (uV/m)
30
1.705-30
30
29.5
30
30-88
100
40
88-216
150
43.5
216-960
200
46
Above 960
500
54
8.5.3
Test Configuration
Test according to clause 7.2 radio frequency test setup 2
8.5.4
Test Procedure
This test is required for any spurious emission that falls in a Restricted Band, as defined in Section 15.205.
It must be performed with the highest gain of each type of antenna proposed for use with the EUT. Use the
following spectrum analyzer settings:
The EUT was placed on a turn table which is 0.8m above ground plane.
Maximum procedure was performed on the highest emissions to ensure EUT compliance.
Span = wide enough to fully capture the emission being measured
RBW = 1 MHz for f ≥ 1 GHz(1GHz to 25GHz), 100 kHz for f < 1 GHz(30MHz to 1GHz)
VBW ≥ RBW
Sweep = auto
Detector function = peak
Trace = max hold
TRF No.:FCC 15.247/A
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Follow the guidelines in ANSI C63.10-2013 with respect to maximizing the emission by rotating the EUT,
measuring the emission while the EUT is situated in three orthogonal planes (if appropriate), adjusting the
measurement antenna height and polarization, etc. A pre-amp and a high pass filter are required for this
test, in order to provide the measuring system with sufficient sensitivity. Allow the trace to stabilize. The
peak reading of the emission, after being corrected by the antenna factor, cable loss, pre-amp gain, etc., is
the peak field strength, which must comply with the limit specified in Section 15.35(b). Submit this data.
Now set the VBW to 10 Hz, while maintaining all of the other instrument settings. This peak level, once
corrected, must comply with the limit specified in Section 15.209. If the dwell time per channel of the
hopping signal is less than 100 ms, then the reading obtained with the 10 Hz VBW may be further adjusted
by a “duty cycle correction factor”, derived from 20log(dwell time/100 ms), in an effort to demonstrate
compliance with the 15.209 limit. Submit this data.
Repeat above procedures until all frequency measured was complete.
8.5.5

Test Results
Spurious Emission below 30MHz (9KHz to 30MHz)
Temperature:
Humidity:
Test mode:
24℃
53 %
TX Mode
Test Date:
Test By:
December 11, 2018
KK
Emission
Limit 3m(dBuV/m)
Over(dB)
Level(dBuV/m)
H/V
PK
AV
PK
AV
PK
AV
--------Note: the amplitude of spurious emission that is attenuated by more than 20dB below the permissible
limit has no need to be reported.
Distance extrapolation factor =40log(Specific distance/ test distance)( dB);
Limit line=Specific limits(dBuV) + distance extrapolation factor
Freq.
(MHz)
Ant.Pol.
 Spurious Emission Above 1GHz (1GHz to 25GHz)
Bluetooth 5.0 DTS mode have been tested, and the worst result was report as below:
Temperature :
Humidity :
Test mode:
Freq.
(MHz)
7615.000
11100.00
17832.00
12596.00
16098.00
17866.00
25℃
53 %
Bluetooth 5.0 DTS
Ant.Po
l.
H/V
TRF No.:FCC 15.247/A
Test Date :
Test By:
Frequency:
Emission
Level(dBuV/m)
PK
AV
48.22
34.42
50.43
34.83
53.58
36.06
50.55
35.81
50.56
35.46
54.03
37.15
December 11, 2018
KK
Channel 0: 2402MHz
Limit 3m(dBuV/m)
PK
74
74
74
74
74
74
Page 29 of 43
AV
54
54
54
54
54
54
Over(dB)
PK
-25.78
-23.57
-20.42
-23.45
-23.44
-19.97
AV
-19.58
-19.17
-17.94
-18.19
-18.54
-16.85
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Temperature :
Humidity :
Test mode:
Freq.
(MHz)
11253.00
12936.00
17764.00
11253.00
14585.00
17849.00
25℃
53 %
Bluetooth 5.0 DTS
Ant.P
ol.
H/V
Temperature :
Humidity :
Test mode:
Freq.
(MHz)
8533.000
13378.00
17849.00
7683.000
13786.00
17747.00
Emission
Level(dBuV/m)
PK
AV
48.75
34.76
49.92
33.82
54.66
37.86
47.94
34.41
49.87
33.02
52.90
35.43
25℃
53 %
Bluetooth 5.0 DTS
Ant.Po
l.
H/V
Test Date :
Test By:
Frequency:
December 11, 2018
KK
Channel 19: 2440MHz
Limit 3m(dBuV/m)
PK
74
74
74
74
74
74
AV
54
54
54
54
54
54
PK
-25.25
-24.08
-19.34
-26.06
-24.13
-21.10
Test Date :
Test By:
Frequency:
Emission
Level(dBuV/m)
PK
AV
47.65
33.44
49.48
35.06
53.41
36.92
48.02
34.15
50.05
34.76
53.29
36.43
AV
-19.24
-20.18
-16.14
-19.59
-20.98
-18.57
December 11, 2018
KK
Channel 39: 2480MHz
Limit 3m(dBuV/m)
PK
74
74
74
74
74
74
Over(dB)
AV
54
54
54
54
54
54
Over(dB)
PK
-26.35
-24.52
-20.59
-25.98
-23.95
-20.71
AV
-20.56
-18.94
-17.08
-19.85
-19.24
-17.57
Note: (1) All Readings are Peak Value (VBW=3MHz) and Peak Value (VBW=10Hz).
(2) Emission Level= Reading Level+Probe Factor +Cable Loss.
(3) Data of measurement within this frequency range shown “ -- ” in the table above means the
reading of emissions are attenuated more than 20dB below the permissible limits or the field
strength is too small to be measured.
TRF No.:FCC 15.247/A
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 Spurious Emission in Restricted Band 2310-2390MHz and 2483.5-2500MHz
Temperature :
Humidity :
Test mode:
25℃
53 %
Bluetooth 5.0 DTS
Test Date :
Test By:
Frequency:
December 11, 2018
KK
Channel 0: 2402MHz
Frequency
(MHz)
Polarity
PK(dBuV/m)
(VBW=3MHz)
Limit 3m
(dBuV/m)
Margin
(dB)
AV(dBuV/m)
(VBW=10Hz)
Limit 3m
(dBuV/m)
Margin
(dB)
2388.320
2389.440
44.50
46.48
74
74
- 29.50
- 27.52
30.30
32.70
54
54
- 23.70
- 21.30
Temperature :
Humidity :
Test mode:
25℃
53 %
Bluetooth 5.0 DTS
Test Date :
Test By:
Frequency:
December 11, 2018
KK
Channel 39: 2480MHz
Frequency
(MHz)
Polarity
PK(dBuV/m)
(VBW=3MHz)
Limit 3m
(dBuV/m)
Margin
(dB)
AV(dBuV/m)
(VBW=10Hz)
Limit 3m
(dBuV/m)
Margin
(dB)
2483.682
2483.566
45.95
46.05
74
74
- 28.05
- 27.95
33.10
32.70
54
54
- 20.90
- 21.30
Note: (1) All Readings are Peak Value (VBW=3MHz) and Peak Value (VBW=10Hz).
(2) Emission Level= Reading Level+Probe Factor +Cable Loss.
(3) Data of measurement within this frequency range shown “ -- ” in the table above means the
reading of emissions are attenuated more than 20dB below the permissible limits or the field
strength is too small to be measured.
TRF No.:FCC 15.247/A
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All the modulation modes were tested, the data of the worst mode are described in the following table.
Spurious Emission in Restricted Band 2310-2390MHz
Test Model
Bluetooth 5.0 DTS
Channel 0: 2402MHz
Test Model
TRF No.:FCC 15.247/A
Spurious Emission in Restricted Band 2310-2390MHz
Bluetooth 5.0 DTS
Channel 0: 2402MHz
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Test Model
Test Model
TRF No.:FCC 15.247/A
Spurious Emission in Restricted Band 2483.5-2500MHz
Bluetooth 5.0 DTS
Channel 39: 2480MHz
Spurious Emission in Restricted Band 2483.5-2500MHz
Bluetooth 5.0 DTS
Channel 39: 2480MHz
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 Spurious Emission below 1GHz (30MHz to 1GHz)
TRF No.:FCC 15.247/A
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8.6 CONDUCTED EMISSIONS TEST
8.6.1
Applicable Standard
According to FCC Part 15.207(a)
8.6.2
Conformance Limit
Conducted Emission Limit
Frequency(MHz)
Quasi-peak
Average
0.15-0.5
66-56
56-46
0.5-5.0
56
46
5.0-30.0
60
50
Note: 1. The lower limit shall apply at the transition frequencies
2. The limit decreases in line with the logarithm of the frequency in the range of 0.15 to
0.50MHz.
8.6.3
Test Configuration
Test according to clause 7.3 conducted emission test setup
8.6.4
Test Procedure
The EUT was placed on a table which is 0.8m above ground plane.
Maximum procedure was performed on the highest emissions to ensure EUT compliance.
Repeat above procedures until all frequency measured were complete.
8.6.5
Test Results
The 120V &240V voltage have been tested, and the worst result recorded was report as below:
TRF No.:FCC 15.247/A
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TRF No.:FCC 15.247/A
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8.7
8.7.1
ANTENNA APPLICATION
Antenna Requirement
Standard
FCC CRF Part 15.203
Requirement
An intentional radiator shall be designed to ensure that no antenna other
than that furnished by the responsible party shall be used with the
device. The use of a permanently attached antenna or of an antenna
that uses a unique coupling to the intentional radiator shall be
considered sufficient to comply with the provisions of this section. The
manufacturer may design the unit so that a broken antenna can be
replaced by the user, but the use of a standard antenna jack or electrical
connector is prohibited. This requirement does not apply to carrier
current devices or to devices operated under the provisions of §15.211,
§15.213, §15.217, §15.219, or §15.221. Further, this requirement does
not apply to intentional radiators that must be professionally installed,
such as perimeter protection systems and some field disturbance
sensors, or to other intentional radiators which, in accordance with
§15.31(d), must be measured at the installation site. However, the
installer shall be responsible for ensuring that the proper antenna is
employed so that the limits in this part are not exceeded.
For intentional device, according to FCC 47 CFR Section 15.203, an intentional radiator shall be
designed to ensure that no antenna other than that furnished by the responsible party shall be used
with the device. And according to FCC 47 CFR Section 15.247 (b), if transmitting antennas of
directional gain greater than 6dBi are used, the power shall be reduced by the amount in dB that the
directional gain of the antenna exceeds 6dBi.
8.7.2
Result
The EUT’S antenna is PCB antenna. The antenna’s gain is 3.75 dBi, which in accordance to section
15.203, please refer to the internal photos.
TRF No.:FCC 15.247/A
Page 43 of 43
Report No.: ES181031025W02
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Download: A3391 Soundcore Rave Test Report ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT Anker Innovations Limited
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Document ID4118065
Application IDXTc7J791r11rq4Qa0AfSRg==
Document DescriptionTest Report_DTS
Short Term ConfidentialNo
Permanent ConfidentialNo
SupercedeNo
Document TypeTest Report
Display FormatAdobe Acrobat PDF - pdf
Filesize124.43kB (1555348 bits)
Date Submitted2018-12-27 00:00:00
Date Available2018-12-27 00:00:00
Creation Date2018-12-25 15:39:21
Producing SoftwareAdobe PDF Library 15.0
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Document TitleELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT
Document CreatorAcrobat PDFMaker 15 Word 版
Document Author: fly

Source Exif Data [exif.tools]:
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