RQY31 Bluetooth Headset Test Report 1 Dongguan Hele Electronics Co., Ltd.

Dongguan Hele Electronics Co., Ltd. Bluetooth Headset

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TEST REPORT
FCC ID: RDRQY31
Product: Bluetooth Headset
Model No.: QY31
Additional Model No.: N/A
Trade Mark: N/A
Report No.: TCT171228E011
Issued Date: Jan. 05, 2018
Issued for:
Dongguan Hele Electronics Co., Ltd.
Dalingya Industrial Zone, Daojiao Town, Dongguan City, Guangdong, China
Issued By:
Shenzhen Tongce Testing Lab.
1B/F., Building 1, Yibaolai Industrial Park, Qiaotou, Fuyong, Baoan District,
Shenzhen, Guangdong, China
TEL: +86-755-27673339
FAX: +86-755-27673332
Note: This report shall not be reproduced except in full, without the written approval of Shenzhen Tongce Testing Lab.
This document may be altered or revised by Shenzhen Tongce Testing Lab. personnel only, and shall be noted in
the revision section of the document. The test results in the report only apply to the tested sample.
Hotline: 400-6611-140
Tel: 86-755-27673339
Fax: 86-755-27673332
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Report No.: TCT171228E011
TABLE OF CONTENTS
1. Test Certification....................................................................................... 3
2. Test Result Summary ............................................................................... 4
3. EUT Description ........................................................................................ 5
4. Genera Information ................................................................................... 6
4.1. Test environment and mode ................................................................................. 6
4.2. Description of Support Units ................................................................................ 6
5. Facilities and Accreditations ................................................................... 7
5.1. Facilities ................................................................................................................. 7
5.2. Location ................................................................................................................. 7
5.3. Measurement Uncertainty ..................................................................................... 7
6. Test Results and Measurement Data ...................................................... 8
6.1. Antenna requirement ............................................................................................ 8
6.2. Conducted Emission ............................................................................................. 9
6.3. Conducted Output Power ................................................................................... 13
6.4. 20dB Occupy Bandwidth .................................................................................... 14
6.5. Carrier Frequencies Separation ......................................................................... 15
6.6. Hopping Channel Number .................................................................................. 16
6.7. Dwell Time ............................................................................................................ 17
6.8. Pseudorandom Frequency Hopping Sequence ................................................ 18
6.9. Conducted Band Edge Measurement ................................................................ 19
6.10. Conducted Spurious Emission Measurement ................................................. 20
6.11. Radiated Spurious Emission Measurement .................................................... 21
Appendix A: Test Result of Conducted Test
Appendix B: Photographs of Test Setup
Appendix C: Photographs of EUT
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Report No.: TCT171228E011
1. Test Certification
Product:
Bluetooth Headset
Model No.:
QY31
Additional
Model:
N/A
Trade Mark:
N/A
Applicant:
Dongguan Hele Electronics Co., Ltd.
Address:
Dalingya Industrial Zone, Daojiao Town, Dongguan City, Guangdong,
China
Manufacturer: Dongguan Hele Electronics Co., Ltd.
Address:
Dalingya Industrial Zone, Daojiao Town, Dongguan City, Guangdong,
China
Date of Test:
Dec. 29, 2017 - Jan. 04, 2018
Applicable
Standards:
FCC CFR Title 47 Part 15 Subpart C Section 15.247
The above equipment has been tested by Shenzhen Tongce Testing Lab. and found
compliance with the requirements set forth in the technical standards mentioned above. The
results of testing in this report apply only to the product/system, which was tested. Other
similar equipment will not necessarily produce the same results due to production tolerance
and measurement uncertainties.
Tested By:
Date:
Jan. 04, 2018
Date:
Jan. 05, 2018
Date:
Jan. 05, 2018
Garen
Reviewed By:
Joe Zhou
Approved By:
Tomsin
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Report No.: TCT171228E011
2.
Test Result Summary
Requirement
CFR 47 Section
Result
Antenna Requirement
§15.203/§15.247 (c)
PASS
AC Power Line Conducted
Emission
§15.207
PASS
§15.247 (b)(1)
Conducted Peak Output
Power
§2.1046
§15.247 (a)(1)
20dB Occupied Bandwidth
§2.1049
PASS
PASS
Carrier Frequencies
Separation
§15.247 (a)(1)
PASS
Hopping Channel Number
§15.247 (a)(1)
PASS
Dwell Time
§15.247 (a)(1)
PASS
Radiated Emission
§15.205/§15.209
§2.1053, §2.1057
§15.247(d)
Band Edge
§2.1051, §2.1057
PASS
PASS
Note:
1. PASS: Test item meets the requirement.
2. Fail: Test item does not meet the requirement.
3. N/A: Test case does not apply to the test object.
4. The test result judgment is decided by the limit of test standard.
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3. EUT Description
Product:
Bluetooth Headset
Model No.:
QY31
Additional Model:
N/A
Trade Mark:
N/A
Hardware Version:
V001
Software Version:
V001
Bluetooth Version:
V4.1
Operation Frequency:
2402MHz~2480MHz
Transfer Rate:
1/2/3 Mbits/s
Number of Channel:
79
Modulation Type:
GFSK, π/4-DQPSK, 8DPSK
Modulation
Technology:
FHSS
Antenna Type:
Internal Antenna
Antenna Gain:
3.01dBi
Power Supply:
Rechargeable Li-ion Battery DC3.7V
Operation Frequency each of channel for GFSK, π/4-DQPSK, 8DPSK
Channel Frequency Channel Frequency Channel Frequency Channel Frequency
2402MHz
20
2422MHz
40
2442MHz
60
2462MHz
2403MHz
21
2423MHz
41
2443MHz
61
2463MHz
…
…
…
…
…
…
…
…
10
2412MHz
30
2432MHz
50
2452MHz
70
2472MHz
11
2413MHz
31
2433MHz
51
2453MHz
71
2473MHz
…
…
…
…
…
…
…
…
18
2420MHz
38
2440MHz
58
2460MHz
78
2480MHz
19
2421MHz
39
2441MHz
59
2461MHz
Remark: Channel 0, 39 &78 have been tested for GFSK, π/4-DQPSK, 8DPSK
modulation mode.
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4. Genera Information
4.1. Test environment and mode
Operating Environment:
Temperature:
25.0 °C
Humidity:
56 % RH
Atmospheric Pressure:
1010 mbar
Test Mode:
Engineering mode:
Keep the EUT in continuous transmitting
by select channel and modulations with
Fully-charged battery
The sample was placed 0.8m & 1.5m for the measurement below & above 1GHz
above the ground plane of 3m chamber. Measurements in both horizontal and vertical
polarities were performed. During the test, each emission was maximized by: having
the EUT continuously working, investigated all operating modes, rotated about all 3
axis (X, Y & Z) and considered typical configuration to obtain worst position,
manipulating interconnecting cables, rotating the turntable, varying antenna height
from 1m to 4m in both horizontal and vertical polarizations. The emissions worst-case
are shown in Test Results of the following pages.
4.2. Description of Support Units
The EUT has been tested as an independent unit together with other necessary
accessories or support units. The following support units or accessories were used to
form a representative test configuration during the tests.
Equipment
Model No.
Serial No.
FCC ID
Trade Name
Note:
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.
3. For conducted measurements (Output Power, 20dB Occupied Bandwidth, Carrier Frequencies Separation,
Hopping Channel Number, Dwell Time, Spurious Emissions), the antenna of EUT is connected to the test
equipment via temporary antenna connector, the antenna connector is soldered on the antenna port of EUT, and
the temporary antenna connector is listed in the Test Instruments.
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Report No.: TCT171228E011
5.
Facilities and Accreditations
5.1. Facilities
The test facility is recognized, certified, or accredited by the following organizations:
● FCC - Registration No.: 645098
Shenzhen Tongce Testing Lab
The 3m Semi-anechoic chamber has been registered and fully described in a report
with the (FCC) Federal Communications Commission. The acceptance letter from the
FCC is maintained in our files.
● IC - Registration No.: 10668A-1
The 3m Semi-anechoic chamber of Shenzhen TCT Testing Technology Co., Ltd. has
been registered by Certification and Engineering Bureau of Industry Canada for radio
equipment testing
5.2. Location
Shenzhen Tongce Testing Lab
Address: 1B/F., Building 1, Yibaolai Industrial Park, Qiaotou, Fuyong, Baoan District,
Shenzhen, Guangdong, China
Tel: 86-755-27673339
5.3. Measurement Uncertainty
The reported uncertainty of measurement y ± U, where expended uncertainty U is based
on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of
confidence of approximately 95 %.
No.
Item
MU
Conducted Emission
±2.56dB
RF power, conducted
±0.12dB
Spurious emissions, conducted
±0.11dB
All emissions, radiated(<1G)
±3.92dB
All emissions, radiated(>1G)
±4.28dB
Temperature
±0.1°C
Humidity
±1.0%
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Report No.: TCT171228E011
6.
Test Results and Measurement Data
6.1. Antenna requirement
Standard requirement:
FCC Part15 C Section 15.203 /247(c)
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, 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.
15.247(c) (1)(i) requirement:
(i) Systems operating in the 2400-2483.5 MHz band that is used exclusively for fixed.
Point-to-point operations may employ transmitting antennas with directional gain
greater than 6dBi provided the maximum conducted output power of the intentional
radiator is reduced by 1 dB for every 3 dB that the directional gain of the antenna
exceeds 6dBi.
E.U.T Antenna:
The Bluetooth antenna is internal antenna which permanently attached, and the best
case gain of the antenna is 3.01dBi.
Antenna
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6.2. Conducted Emission
6.2.1. Test Specification
Test Requirement:
FCC Part15 C Section 15.207
Test Method:
ANSI C63.10:2013
Frequency Range:
150 kHz to 30 MHz
Receiver setup:
RBW=9 kHz, VBW=30 kHz, Sweep time=auto
Limits:
Frequency range
(MHz)
0.15-0.5
0.5-5
5-30
Limit (dBuV)
Quasi-peak
Average
66 to 56*
56 to 46*
56
46
60
50
Test Setup:
Test Mode:
Refer to item 4.1
Test Procedure:
1. The E.U.T is connected to an adapter through a line
impedance stabilization network (L.I.S.N.). This
provides a 50ohm/50uH coupling impedance for the
measuring equipment.
2. The peripheral devices are also connected to the main
power through a LISN that provides a 50ohm/50uH
coupling impedance with 50ohm termination. (Please
refer to the block diagram of the test setup and
photographs).
3. Both sides of A.C. line are checked for maximum
conducted interference. In order to find the maximum
emission, the relative positions of equipment and all of
the interface cables must be changed according to
ANSI C63.10:2013 on conducted measurement.
Test Result:
PASS
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6.2.2. Test Instruments
Conducted Emission Shielding Room Test Site (843)
Equipment
Manufacturer
Model
Serial Number Calibration Due
Test Receiver
R&S
ESPI
101401
Jun. 12, 2018
LISN
Schwarzbeck
NSLK 8126
8126453
Sep. 27, 2018
Coax cable
(9KHz-30MHz)
TCT
CE-05
N/A
Sep. 27, 2018
EMI Test Software
Shurple
Technology
EZ-EMC
N/A
N/A
Note: The calibration interval of the above test instruments is 12 months and the calibrations are traceable to
international system unit (SI).
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6.2.3. Test data
Please refer to following diagram for individual
Conducted Emission on Line Terminal of the power line (150 kHz to 30MHz)
Note:
Freq. = Emission frequency in MHz
Reading level (dBµV) = Receiver reading
Corr. Factor (dB) = Antenna factor + Cable loss
Measurement (dBµV) = Reading level (dBµV) + Corr. Factor (dB)
Limit (dBµV) = Limit stated in standard
Margin (dB) = Measurement (dBµV) – Limits (dBµV)
Q.P. =Quasi-Peak
AVG =average
* is meaning the worst frequency has been tested in the frequency range 150 kHz to 30MHz
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Conducted Emission on Neutral Terminal of the power line (150 kHz to 30MHz)
Note1:
Freq. = Emission frequency in MHz
Reading level (dBµV) = Receiver reading
Corr. Factor (dB) = Antenna factor + Cable loss
Measurement (dBµV) = Reading level (dBµV) + Corr. Factor (dB)
Limit (dBµV) = Limit stated in standard
Margin (dB) = Measurement (dBµV) – Limits (dBµV)
Q.P. =Quasi-Peak
AVG =average
* is meaning the worst frequency has been tested in the frequency range 150 kHz to 30MHz.
Note2:
Measurements were conducted in all three channels (high, middle, low) and three modulation (GFSK,
Pi/4 DQPSK, 8DPSK), and the worst case Mode (Middle channel and 8DPSK) was submitted only.
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6.3. Conducted Output Power
6.3.1. Test Specification
Test Requirement:
FCC Part15 C Section 15.247 (b)(3)
Test Method:
ANSI C63.10:2013
Limit:
Section 15.247 (b) The maximum peak conducted output
power of the intentional radiator shall not exceed the
following: (1) For frequency hopping systems operating
in the 2400-2483.5 MHz band employing at least 75
non-overlapping hopping channels, and all frequency
hopping systems in the 5725-5850 MHz band: 1 watt.
For all other frequency hopping systems in the
2400-2483.5 MHz band 0.125 watts.
Test Setup:
Test Mode:
Transmitting mode with modulation
Test Procedure:
Use the following spectrum analyzer settings:
Span = approximately 5 times the 20 dB bandwidth,
centered on a hopping channel
RBW > the 20 dB bandwidth of the emission being
measured VBW ≥ RBW
Sweep = auto
Detector function = peak
Trace = max hold
Allow the trace to stabilize.
Use the marker-to-peak function to set the marker to the
peak of the emission.
Test Result:
PASS
6.3.2. Test Instruments
Equipment
Manufacturer
Model
Serial Number Calibration Due
Spectrum Analyzer
Agilent
N9020A
MY49100060
Sep. 27, 2018
RF Cable
(9KHz-26.5GHz)
TCT
RE-06
N/A
Sep. 27, 2018
Antenna Connector
TCT
RFC-01
N/A
Sep. 27, 2018
Note: The calibration interval of the above test instruments is 12 months and the calibrations are traceable to
international system unit (SI).
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6.4. 20dB Occupy Bandwidth
6.4.1. Test Specification
Test Requirement:
FCC Part15 C Section 15.247 (a)(1)
Test Method:
ANSI C63.10:2013
Limit:
N/A
Test Setup:
Test Mode:
Transmitting mode with modulation
Test Procedure:
1. The testing follows ANSI C63.10:2013 Measurement
Guidelines.
2. 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.
3. Set to the maximum power setting and enable the
EUT transmit continuously.
4. Use the following spectrum analyzer settings for 20dB
Bandwidth measurement.
Span = approximately 2 to 5 times the 20 dB
bandwidth, centered on a hopping channel; 1%≤
RBW≤5% of the 20 dB bandwidth; VBW≥3RBW;
Sweep = auto; Detector function = peak; Trace = max
hold.
5. Measure and record the results in the test report.
Test Result:
PASS
6.4.2. Test Instruments
Equipment
Manufacturer
Model
Serial Number Calibration Due
Spectrum Analyzer
Agilent
N9020A
MY49100060
Sep. 27, 2018
RF Cable
(9KHz-26.5GHz)
TCT
RE-06
N/A
Sep. 27, 2018
Antenna Connector
TCT
RFC-01
N/A
Sep. 27, 2018
Note: The calibration interval of the above test instruments is 12 months and the calibrations are traceable to
international system unit (SI).
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6.5. Carrier Frequencies Separation
6.5.1. Test Specification
Test Requirement:
FCC Part15 C Section 15.247 (a)(1)
Test Method:
ANSI C63.10:2013
Limit:
Frequency hopping systems operating in the
2400-2483.5 MHz band may have hopping channel
carrier frequencies that are separated by 25 kHz or
two-thirds of the 20 dB bandwidth of the hopping
channel, whichever is greater.
Test Setup:
Test Mode:
Hopping mode
Test Procedure:
1. The testing follows ANSI C63.10:2013 Measurement
Guidelines.
2. 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.
3. Set to the maximum power setting and enable the EUT
transmit continuously.
4. Enable the EUT hopping function.
5. Use the following spectrum analyzer settings:
Span = wide enough to capture the peaks of two adjacent
channels; RBW is set to approximately 30% of the channel
spacing, adjust as necessary to best identify the center of
each individual channel; VBW≥RBW; Sweep = auto;
Detector function = peak; Trace = max hold.
6. Use the marker-delta function to determine the separation
between the peaks of the adjacent channels. Record the
value in report.
Test Result:
PASS
6.5.2. Test Instruments
Equipment
Manufacturer
Model
Serial Number Calibration Due
Spectrum Analyzer
Agilent
N9020A
MY49100060
Sep. 27, 2018
RF Cable
(9KHz-26.5GHz)
TCT
RE-06
N/A
Sep. 27, 2018
Antenna Connector
TCT
RFC-01
N/A
Sep. 27, 2018
Note: The calibration interval of the above test instruments is 12 months and the calibrations are traceable to
international system unit (SI).
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6.6.
Hopping Channel Number
6.6.1. Test Specification
Test Requirement:
FCC Part15 C Section 15.247 (a)(1)
Test Method:
ANSI C63.10:2013
Limit:
Frequency hopping systems in the 2400-2483.5 MHz
band shall use at least 15 channels.
Test Setup:
Test Mode:
Hopping mode
Test Procedure:
1. The testing follows ANSI C63.10:2013 Measurement
Guidelines.
2. 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.
3. Set to the maximum power setting and enable the
EUT transmit continuously.
4. Enable the EUT hopping function.
5. Use the following spectrum analyzer settings: Span =
the frequency band of operation; set the RBW to less
than 30% of the channel spacing or the 20 dB
bandwidth, whichever is smaller; VBW≥RBW; Sweep
= auto; Detector function = peak; Trace = max hold.
6. The number of hopping frequency used is defined as
the number of total channel.
7. Record the measurement data in report.
Test Result:
PASS
6.6.2. Test Instruments
Equipment
Manufacturer
Model
Serial Number Calibration Due
Spectrum Analyzer
Agilent
N9020A
MY49100060
Sep. 27, 2018
RF Cable
(9KHz-26.5GHz)
TCT
RE-06
N/A
Sep. 27, 2018
Antenna Connector
TCT
RFC-01
N/A
Sep. 27, 2018
Note: The calibration interval of the above test instruments is 12 months and the calibrations are traceable to
international system unit (SI).
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6.7. Dwell Time
6.7.1. Test Specification
Test Requirement:
FCC Part15 C Section 15.247 (a)(1)
Test Method:
ANSI C63.10:2013
Limit:
The average time of occupancy on any channel shall not
be greater than 0.4 seconds within a period of 0.4
seconds multiplied by the number of hopping channels
employed.
Test Setup:
Test Mode:
Hopping mode
Test Procedure:
1. The testing follows ANSI C63.10:2013 Measurement
Guidelines.
2. 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.
3. Set to the maximum power setting and enable the
EUT transmit continuously.
4. Enable the EUT hopping function.
5. Use the following spectrum analyzer settings: Span =
zero span, centered on a hopping channel; RBW
shall be ≤ channel spacing and where possible
RBW should be set >> 1 / T, where T is the expected
dwell time per channel; VBW≥RBW; Sweep = as
necessary to capture the entire dwell time per
hopping channel; Detector function = peak; Trace =
max hold.
6. Measure and record the results in the test report.
Test Result:
PASS
6.7.2. Test Instruments
Equipment
Manufacturer
Model
Serial Number Calibration Due
Spectrum Analyzer
Agilent
N9020A
MY49100060
Sep. 27, 2018
RF Cable
(9KHz-26.5GHz)
TCT
RE-06
N/A
Sep. 27, 2018
Antenna Connector
TCT
RFC-01
N/A
Sep. 27, 2018
Note: The calibration interval of the above test instruments is 12 months and the calibrations are traceable to
international system unit (SI).
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6.8. Pseudorandom Frequency Hopping Sequence
Test Requirement:
FCC Part15 C Section 15.247 (a)(1) requirement:
Frequency hopping systems shall have hopping channel carrier frequencies separated
by a minimum of 25 kHz or the 20 dB bandwidth of the hopping channel, whichever is
greater.
Alternatively. Frequency hopping systems operating in the 2400-2483.5 MHz band
may have hopping channel carrier frequencies that are separated by 25 kHz or
two-thirds of the 20 dB bandwidth of the hopping channel, whichever is greater,
provided the systems operate with an output power no greater than 125 mW. The
system shall hop to channel frequencies that are selected at the system hopping rate
from a Pseudorandom ordered list of hopping frequencies. Each frequency must be
used equally on the average by each transmitter. The system receivers shall have
input bandwidths that match the hopping channel bandwidths of their corresponding
transmitters and shall shift frequencies in synchronization with the transmitted signals.
EUT Pseudorandom Frequency Hopping Sequence
The pseudorandom sequence may be generated in a nine-stage shift register whose
5th and 9th stage outputs are added in a modulo-two addition stage. And the result is
fed back to the input of the first stage. The sequence begins with the first one of 9
consecutive ones; i.e. the shift register is initialized with nine ones.
• Number of shift register stages: 9
• Length of pseudo-random sequence: 29 -1 = 511 bits
• Longest sequence of zeros: 8 (non-inverted signal)
An example of Pseudorandom Frequency Hopping Sequence as follow:
Each frequency used equally on the average by each transmitter.
The system receivers have input bandwidths that match the hopping channel
bandwidths of their corresponding transmitters and shift frequencies in
synchronization with the transmitted signals.
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6.9. Conducted Band Edge Measurement
6.9.1. Test Specification
Test Requirement:
FCC Part15 C Section 15.247 (d)
Test Method:
ANSI C63.10:2013
Limit:
In any 100 kHz bandwidth outside the intentional
radiation frequency band, the radio frequency power
shall be at least 20 dB below the highest level of the
radiated power. In addition, radiated emissions which fall
in the restricted bands must also comply with the
radiated emission limits.
Test Setup:
Test Mode:
Transmitting mode with modulation
Test Procedure:
1. The testing follows the guidelines in Band-edge
Compliance of RF Conducted Emissions of ANSI
C63.10:2013 Measurement Guidelines.
2. Set to the maximum power setting and enable the
EUT transmit continuously.
3. Set RBW = 100 kHz (≥1% span=10MHz), VBW = 300
kHz (≥RBW). Band edge emissions must be at least
20 dB down from the highest emission level within
the authorized band as measured with a 100kHz
RBW. The attenuation shall be 30 dB instead of 20
dB when RMS conducted output power procedure is
used.
4. Enable hopping function of the EUT and then repeat
step 2 and 3.
5. Measure and record the results in the test report.
Test Result:
PASS
6.9.2. Test Instruments
Equipment
Manufacturer
Model
Serial Number Calibration Due
Spectrum Analyzer
Agilent
N9020A
MY49100060
Sep. 27, 2018
RF Cable
(9KHz-26.5GHz)
TCT
RE-06
N/A
Sep. 27, 2018
Antenna Connector
TCT
RFC-01
N/A
Sep. 27, 2018
Note: The calibration interval of the above test instruments is 12 months and the calibrations are traceable to
international system unit (SI).
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Report No.: TCT171228E011
6.10. Conducted Spurious Emission Measurement
6.10.1.
Test Specification
Test Requirement:
FCC Part15 C Section 15.247 (d)
Test Method:
ANSI C63.10:2013
Limit:
In any 100 kHz bandwidth outside the intentional
radiation frequency band, the radio frequency power
shall be at least 20 dB below the highest level of the
radiated power. In addition, radiated emissions which fall
in the restricted bands must also comply with the
radiated emission limits.
Test Setup:
Test Mode:
Transmitting mode with modulation
Test Procedure:
1. The testing follows the guidelines in Spurious RF
Conducted Emissions of ANSI C63.10:2013
Measurement Guidelines
2. 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.
3. Set to the maximum power setting and enable the
EUT transmit continuously.
4. Set RBW = 100 kHz, VBW = 300kHz, scan up
through 10th harmonic. All harmonics / spurs must be
at least 20 dB down from the highest emission level
within the authorized band as measured with a 100
kHz RBW.
5. Measure and record the results in the test report.
6. The RF fundamental frequency should be excluded
against the limit line in the operating frequency band.
Test Result:
PASS
6.10.2.
Test Instruments
RF Test Room
Equipment
Manufacturer
Model
Serial Number Calibration Due
Spectrum Analyzer
Agilent
N9020A
MY49100060
Sep. 27, 2018
RF Cable
(9KHz-40GHz)
TCT
RE-06
N/A
Sep. 27, 2018
Antenna Connector
TCT
RFC-01
N/A
Sep. 27, 2018
Note: The calibration interval of the above test instruments is 12 months and the calibrations are traceable to
international system unit (SI).
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Report No.: TCT171228E011
6.11. Radiated Spurious Emission Measurement
6.11.1. Test Specification
Test Requirement:
FCC Part15 C Section 15.209
Test Method:
ANSI C63.10:2013
Frequency Range:
9 kHz to 25 GHz
Measurement Distance:
3m
Antenna Polarization:
Horizontal & Vertical
Receiver Setup:
Frequency
9kHz- 150kHz
150kHz30MHz
30MHz-1GHz
Above 1GHz
Detector
Quasi-peak
Quasi-peak
RBW
200Hz
9kHz
VBW
1kHz
30kHz
Remark
Quasi-peak Value
Quasi-peak Value
Quasi-peak
Peak
Peak
100KHz
1MHz
1MHz
300KHz
3MHz
10Hz
Quasi-peak Value
Peak Value
Average Value
Frequency
Limit:
0.009-0.490
0.490-1.705
1.705-30
30-88
88-216
216-960
Above 960
Field Strength
(microvolts/meter)
2400/F(KHz)
24000/F(KHz)
30
100
150
200
500
Frequency
Field Strength
(microvolts/meter)
Above 1GHz
500
5000
Measurement
Distance (meters)
300
30
30
Measurement
Distance
(meters)
Detector
Average
Peak
For radiated emissions below 30MHz
Test setup:
30MHz to 1GHz
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Above 1GHz
Test Mode:
Transmitting mode with modulation
Test Procedure:
1. The testing follows the guidelines in Spurious
Radiated Emissions of ANSI C63.10:2013
Measurement Guidelines.
2. For the radiated emission test below 1GHz:
The EUT was placed on a turntable with 0.8 meter
above ground. The EUT was set 3 meters from the
interference receiving antenna, which was mounted
on the top of a variable height antenna tower. The
EUT was arranged to its worst case and then tune
the antenna tower (from 1 m to 4 m) and turntable
(from 0 degree to 360 degrees) to find the maximum
reading. A pre-amp and a high PASS filter are used
for the test in order to get better signal level.
For the radiated emission test above 1GHz:
Place the measurement antenna on a turntable with
1.5 meter above ground, which is 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,
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Report No.: TCT171228E011
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.
3. Set to the maximum power setting and enable the
EUT transmit continuously.
4. Use the following spectrum analyzer settings:
(1) Span shall wide enough to fully capture the
emission being measured;
(2) Set RBW=100 kHz for f < 1 GHz, RBW=1MHz
for f>1GHz ; VBW≥RBW;
Sweep = auto; Detector function = peak; Trace
= max hold for peak
(3) For average measurement: use duty cycle
correction factor method per
15.35(c). Duty cycle = On time/100 milliseconds
On time =N1*L1+N2*L2+...+Nn-1*LNn-1+Nn*Ln
Where N1 is number of type 1 pulses, L1 is
length of type 1 pulses, etc.
Average Emission Level = Peak Emission
Level + 20*log(Duty cycle)
Corrected Reading: Antenna Factor + Cable
Loss + Read Level - Preamp Factor = Level
Test results:
PASS
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6.11.2.
Test Instruments
Radiated Emission Test Site (966)
Name of
Equipment
Manufacturer
Model
Serial
Number
Calibration Due
Test Receiver
ROHDE&SCHW
ARZ
ESVD
100008
Sep. 27, 2018
Spectrum Analyzer
ROHDE&SCHW
ARZ
FSQ
200061
Sep. 27, 2018
Pre-amplifier
EM Electronics
Corporation
CO.,LTD
EM30265
07032613
Sep. 27, 2018
Pre-amplifier
HP
8447D
2727A05017
Sep. 27, 2018
Loop antenna
ZHINAN
ZN30900A
12024
Sep. 27, 2018
Broadband Antenna
Schwarzbeck
VULB9163
340
Sep. 27, 2018
Horn Antenna
Schwarzbeck
BBHA 9120D
631
Sep. 27, 2018
Horn Antenna
Schwarzbeck
BBH 9170
582
Jun. 07, 2018
Antenna Mast
Keleto
CC-A-4M
N/A
N/A
Coax cable
(9KHz-1GHz)
TCT
RE-low-01
N/A
Sep. 27, 2018
Coax cable
(9KHz-40GHz)
TCT
RE-high-02
N/A
Sep. 27, 2018
Coax cable
(9KHz-1GHz)
TCT
RE-low-03
N/A
Sep. 27, 2018
Coax cable
(9KHz-40GHz)
TCT
RE-high-04
N/A
Sep. 27, 2018
EMI Test Software
Shurple
Technology
EZ-EMC
N/A
N/A
Note: The calibration interval of the above test instruments is 12 months and the calibrations are traceable to
international system unit (SI).
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6.11.3.
Test Data
Duty cycle correction factor for average measurement
3DH5 on time (One Pulse) Plot on Channel 39
3DH5 on time (Count Pulses) Plot on Channel 39
Note:
1. Worst case Duty cycle = on time/100 milliseconds = (2.908*26+1.842)/100= 0.7745
2. Worst case Duty cycle correction factor = 20*log (Duty cycle) = -2.22dB
3. 2DH5 has the highest duty cycle worst case and is reported.
4. The average levels were calculated from the peak level corrected with duty cycle correction factor (-2.22dB)
derived from 20log (dwell time/100ms). This correction is only for signals that hop with the fundamental signal,
such as band-edge and harmonic. Other spurious signals that are independent of the hopping signal would not
use this correction.
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Report No.: TCT171228E011
Please refer to following diagram for individual
Below 1GHz
Horizontal:
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Report No.: TCT171228E011
Vertical:
Note: 1.The low frequency, which started from 9KHz~30MHz, was pre-scanned and the result which was 20dB lower than
the limit line per 15.31(o) was not reported
2. Measurements were conducted in all three channels (high, middle, low) and three modulation (GFSK,
Pi/4 DQPSK, 8DPSK) and the worst case Mode (Middle channel and 8DPSK) was submitted only.
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Report No.: TCT171228E011
Above 1GHz
Modulation Type: GFSK
Low channel: 2402 MHz
Frequency Ant. Pol. Peak
reading
(MHz)
H/V
(dBµV)
2390
4804
7206
---
46.25
38.36
36.82
---
2390
4804
7206
---
39.42
38.57
35.12
---
Middle channel: 2441 MHz
Frequency Ant. Pol. Peak
reading
(MHz)
H/V
(dBµV)
4882
7323
---
40.28
37.51
---
4882
7323
---
38.77
36.59
---
High channel: 2480 MHz
Frequency Ant. Pol. Peak
reading
(MHz)
H/V
(dBµV)
2483.5
4960
7440
---
42.51
41.68
37.19
---
2483.5
4960
7440
--Note:
40.32
40.58
36.15
---
1.
2.
3.
4.
5.
6.
AV
Correction Emission Level Peak limit AV limit Margin
reading
Factor
Peak
AV
(dB)
(dBuV)
(dB/m) (dBµV/m) (dBµV/m) (dBµV/m) (dBµV/m)
---8.23
38.02
--74
54
-15.98
--6.59
44.95
--74
54
-9.05
--12.87
49.69
--74
54
-4.31
-----------------------
-8.23
6.59
12.87
---
31.19
45.16
47.99
---
---------
74
74
74
---
54
54
54
---
-22.81
-8.84
-6.01
---
AV
Correction Emission Level Peak limit AV limit Margin
reading
Factor
Peak
AV
(dB)
(dBµV)
(dB/m) (dBµV/m) (dBµV/m) (dBµV/m) (dBµV/m)
--7.01
47.29
--74
54
-6.71
--13.21
50.72
--74
54
-3.28
---------------------
7.01
13.21
---
45.78
49.8
---
--------
74
74
---
54
54
---
-8.22
-4.2
---
AV
Correction Emission Level Peak limit AV limit Margin
reading
Factor
Peak
AV
(dB)
(dBµV)
(dB/m) (dBµV/m) (dBµV/m) (dBµV/m) (dBµV/m)
---7.52
34.99
--74
54
-19.01
--7.44
49.12
--74
54
-4.88
--13.54
50.73
--74
54
-3.27
-----------------------
-7.52
7.44
13.54
---
32.8
48.02
49.69
---
---------
74
74
74
---
54
54
54
---
-21.2
-5.98
-4.31
---
Emission Level=Peak Reading + Correction Factor; Correction Factor= Antenna Factor + Cable loss – Pre-amplifier
Margin (dB) = Emission Level (Peak) (dBµV/m)-Average limit (dBµV/m)
The emission levels of other frequencies are very lower than the limit and not show in test report.
Measurements were conducted from 1 GHz to the 10th harmonic of highest fundamental frequency.
Data of measurement shown “---“in the above table mean that the reading of emissions is attenuated more than 20 dB
below the limits or the field strength is too small to be measured.
Measurements were conducted in all three modulation (GFSK, Pi/4 DQPSK, 8DPSK), and the worst case Mode
(8DPSK) was submitted only.
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Report No.: TCT171228E011
Appendix A: Test Result of Conducted Test
20dB Occupied Bandwidth
Test Result
Mode
GFSK
GFSK
GFSK
π/4DQPSK
π/4DQPSK
π/4DQPSK
8DPSK
8DPSK
8DPSK
Channel.
LCH
MCH
HCH
LCH
MCH
HCH
LCH
MCH
HCH
20dB Bandwidth [MHz]
1.104
1.112
1.108
1.375
1.379
1.381
1.376
1.383
1.382
99% OBW [MHz]
0.95180
0.94754
0.94684
1.2071
1.2145
1.2142
1.2113
1.2153
1.2122
Verdict
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
Test Graph
Graphs
GFSK/LCH
GFSK/MCH
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Report No.: TCT171228E011
GFSK/HCH
π/4DQPSK/LCH
π/4DQPSK/MCH
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Report No.: TCT171228E011
π/4DQPSK/HCH
8DPSK/LCH
8DPSK/MCH
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Report No.: TCT171228E011
8DPSK/HCH
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Report No.: TCT171228E011
Carrier Frequency Separation
Result Table
Mode
GFSK
GFSK
GFSK
π/4DQPSK
π/4DQPSK
π/4DQPSK
8DPSK
8DPSK
8DPSK
Channel.
LCH
MCH
HCH
LCH
MCH
HCH
LCH
MCH
HCH
Carrier Frequency Separation [MHz]
0.999
1.000
1.000
0.993
1.001
1.001
1.000
1.000
0.999
Verdict
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
Test Graph
Graphs
GFSK/LCH
GFSK/MCH
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Report No.: TCT171228E011
GFSK/HCH
π/4DQPSK/LCH
π/4DQPSK/MCH
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Report No.: TCT171228E011
π/4DQPSK/HCH
8DPSK/LCH
8DPSK/MCH
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8DPSK/HCH
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Report No.: TCT171228E011
Dwell Time
Result Table
Hops Over
Mode Packet Occupancy
Time (hops)
GFSK DH1
320
Package
Transfer
Time (ms)
0.392
Dwell
time
(second)
0.125
Limit
(second)
Result
0.4
PASS
GFSK
DH3
160
1.658
0.265
0.4
PASS
GFSK
Pi/4
DQPSK
Pi/4
DQPSK
Pi/4
DQPSK
8DPSK
DH5
106.67
2.900
0.309
0.4
PASS
2-DH1
320
0.400
0.128
0.4
PASS
2-DH3
160
1.658
0.265
0.4
PASS
2-DH5
106.67
2.908
0.310
0.4
PASS
3-DH1
320
0.400
0.128
0.4
PASS
8DPSK 3-DH3
160
1.658
0.265
0.4
PASS
8DPSK 3-DH5
106.67
2.908
0.310
0.4
PASS
Note: 1. In normal mode, hopping rate is 1600 hops/s with 6 slots in 79 hopping channels.
For DH1, With channel hopping rate (1600 / 2 / 79) in Occupancy Time Limit (0.4 x 79) (s), Hops Over
Occupancy Time comes to (1600 / 2 / 79) x (0.4 x 79) = 320 hops
For DH3, With channel hopping rate (1600 / 6 / 79) in Occupancy Time Limit (0.4 x 79) (s), Hops Over
Occupancy Time comes to (1600 / 4 / 79) x (0.4 x 79) = 160 hops
For DH5, With channel hopping rate (1600 / 6 / 79) in Occupancy Time Limit (0.4 x 79) (s), Hops Over
Occupancy Time comes to (1600 / 6 / 79) x (0.4 x 79) = 106.67 hops
2. Dwell Time(s) = Hops Over Occupancy Time (hops) x Package Transfer Time
Test plots as follows:
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GFSK
DH1
DH3
DH5
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Report No.: TCT171228E011
Pi/4DQPSK
2-DH1
2-DH3
2-DH5
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8DPSK
3-DH1
3-DH3
3-DH5
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Report No.: TCT171228E011
Hopping Channel Number
Result Table
Mode
GFSK
π/4DQPSK
8DPSK
Channel.
Hop
Hop
Hop
Number of Hopping Channel
79
79
79
Verdict
PASS
PASS
PASS
Test Graph
Graphs
GFSK/Hop
π/4DQPSK/Hop
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8DPSK/Hop
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Report No.: TCT171228E011
Conducted Peak Output Power
Result Table
Mode
GFSK
GFSK
GFSK
π/4DQPSK
π/4DQPSK
π/4DQPSK
8DPSK
8DPSK
8DPSK
Channel.
LCH
MCH
HCH
LCH
MCH
HCH
LCH
MCH
HCH
Maximum Peak Output Power [dBm]
0.059
1.934
1.409
0.820
2.284
1.769
1.062
2.525
2.020
Verdict
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
Test Graph
Graphs
GFSK/LCH
GFSK/MCH
Page 43 of 79
Hotline: 400-6611-140
Tel: 86-755-27673339
Fax: 86-755-27673332
http://www.tct-lab.com
Report No.: TCT171228E011
GFSK/HCH
π/4DQPSK/LCH
π/4DQPSK/MCH
Page 44 of 79
Hotline: 400-6611-140
Tel: 86-755-27673339
Fax: 86-755-27673332
http://www.tct-lab.com
Report No.: TCT171228E011
π/4DQPSK/HCH
8DPSK/LCH
8DPSK/MCH
Page 45 of 79
Hotline: 400-6611-140
Tel: 86-755-27673339
Fax: 86-755-27673332
http://www.tct-lab.com
Report No.: TCT171228E011
8DPSK/HCH
Page 46 of 79
Hotline: 400-6611-140
Tel: 86-755-27673339
Fax: 86-755-27673332
http://www.tct-lab.com
Download: RQY31 Bluetooth Headset Test Report 1 Dongguan Hele Electronics Co., Ltd.
Mirror Download [FCC.gov]RQY31 Bluetooth Headset Test Report 1 Dongguan Hele Electronics Co., Ltd.
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Date Submitted2018-01-10 00:00:00
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