00000NU317 IQbuds Test Report 1702FR13_Part 15.247 LE _17-0082_ Nuheara Limited

Nuheara Limited IQbuds

FCC ID Filing: 2AKMG00000NU317
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Report Number: 1702FR13
FCC 47 CFR PART 15 SUBPART C
RF Test Report
Applicant
: Nuheara Limited
Product Type
: IQbuds
Trade Name
: NUHEARA
Model Number
: NU317
Test Specification
: FCC 47 CFR PART 15 SUBPART C
ANSI C63.10:2013
Receive Date
: Dec. 05, 2016
Test Period
: Dec. 05 ~ Dec. 19, 2016
Issue Date
: Feb. 15, 2017
Issue by
A Test Lab Techno Corp.
No. 140-1, Changan Street, Bade District,
Taoyuan City 33465, Taiwan (R.O.C)
Tel:+886-3-2710188 / Fax:+886-3-2710190
Taiwan Accreditation Foundation accreditation number: 1330
Note: This report shall not be reproduced except in full, without the written approval of A Test Lab Techno
Corp. This document may be altered or revised by A Test Lab Techno Corp. personnel only, and shall be
noted in the revision section of the document. The client should not use it to claim product endorsement by
TAF, or any government agencies. The test results in the report only apply to the tested sample.
1 of 40
Report Number: 1702FR13
Revision History
Rev.
Issue Date
00
Feb. 15, 2017
Revisions
Initial Issue
Revised By
Snow Wang
2 of 40
Report Number: 1702FR13
Ver i f i c a t i o n o f C o m p l i a n c e
Issued Date: Feb. 15, 2017
Applicant
Nuheara Limited
Product Type
IQbuds
Trade Name
NUHEARA
Model Number
NU317
FCC ID
2AKMG00000NU317
EUT Rated Voltage
DC 4.2V, 100mA
Test Voltage
120 Vac / 60 Hz, 3.7Vdc
Applicable Standard
FCC 47 CFR PART 15 SUBPART C
ANSI C63.10:2013
Test Result
Complied
Performing Lab.
A Test Lab Techno Corp.
No. 140-1, Changan Street, Bade District,
Taoyuan City 33465, Taiwan (R.O.C)
Tel:+886-3-2710188 / Fax:+886-3-2710190
Taiwan Accreditation Foundation accreditation number: 1330
http://www.atl-lab.com.tw/e-index.htm
A Test Lab Techno Corp. tested the above equipment in accordance with the requirements set forth in the above
standards. All indications of Pass/Fail in this report are opinions expressed by A Test Lab Techno Corp. based on
interpretations and/or observations of test results. Measurement Uncertainties were not taken into account and are
published for informational purposes only. The test results show that the equipment tested is capable of
demonstrating compliance with the requirements as documented in this report.
Approved By
(Manager)
:
Reviewed By
(Fly Lu)
(Testing Engineer)
3 of 40
:
(Eric Ou Yang)
Report Number: 1702FR13
TABLE OF CONTENTS
General Information ....................................................................................................................... 5
EUT Description ............................................................................................................................. 6
Test Methodology .......................................................................................................................... 7
3.1. Mode of Operation .................................................................................................................. 7
3.2. EUT Exercise Software ........................................................................................................... 7
3.3. Configuration of Test System Details ...................................................................................... 8
3.4. Test Site Environment ............................................................................................................. 9
AC Power Line Conducted Emission Measurement ................................................................. 10
Radiated Emission Measurement ............................................................................................... 14
Maximum Conducted Output Power Measurement .................................................................. 29
6dB RF Bandwidth Measurement ............................................................................................... 30
Maximum Power Density Measurement..................................................................................... 33
Out of Band Conducted Emissions Measurement.................................................................... 36
10 Antenna Measurement................................................................................................................. 40
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Report Number: 1702FR13
General Information
1.1 Summary of Test Result
Standard
Item
Result
Remark
15.207
AC Power Conducted Emission
PASS
-----
15.247(d)
Transmitter Radiated Emissions
PASS
-----
15.247(b)(3)
Max. Output Power
PASS
-----
15.247(a)(2)
6dB RF Bandwidth
PASS
-----
15.247(e)
Power Spectral Density
PASS
-----
15.247(d)
Out of Band Conducted Spurious
Emission
PASS
-----
Antenna Requirement
PASS
-----
15.203
The test results of this report relate only to the tested sample(s) identified in this report. Manufacturer or whom it may
concern should recognize the pass or fail of the test result.
1.2 Measurement Uncertainty
Test Item
Frequency Range
Uncertainty (dB)
9kHz ~ 150KHz
2.7
150kHz ~ 30MHz
2.7
9kHz ~ 30MHz
1.7
30MHz ~ 1000MHz
5.7
1000MHz ~ 18000MHz
5.5
18000MHz ~ 26500MHz
4.8
26500MHz ~ 40000MHz
4.8
Conducted Emission
Radiated Emission
Conducted Output Power
+0.27 dB / -0.28 dB
RF Bandwidth
4.96%
Power Spectral Density
+0.71 dB / -0.77 dB
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Report Number: 1702FR13
EUT Description
Applicant
Nuheara Limited
Unit 5, 28 John St, Northbridge, WA 6003, Australia
Manufacturer
Flextronics, Zhuhai
Xin Qing Science & Technology Industrial Park, Jing An, Doumen, Zhuhai, P.R.
China
Product Type
IQbuds
Trade Name
NUHEARA
Model No.
NU317
FCC ID
2AKMG00000NU317
Frequency Range
Bluetooth LE: 2402 ~ 2480 MHz
Modulation Type
GFSK
Antenna Type
Ceramic 1206 Antenna
Antenna Gain
0.5 dBi
RF Output Power
0.00429 W /6.32 dBm
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Report Number: 1702FR13
Test Methodology
3.1. Mode of Operation
Decision of Test ATL has verified the construction and function in typical operation. All the test modes were carried out
with the EUT in normal operation, which was shown in this test report and defined as:
Test Mode
Mode 1: Continuous TX mode
Mode 2: Bluetooth LE Link Mode
Software used to control the EUT for staying in continuous transmitting mode was programmed.
After verification, all tests were carried out with the worst case test modes as shown below except radiated spurious
emission below 1GHz and power line conducted emissions below 30MHz, which worst case was in normal link mode
only.
By preliminary testing and verifying three axis (X, Y and Z) position of EUT transmitted status, it was found that “X
axis” position was the worst, then the final test was executed the worst condition and test data were recorded in this
report.
Note: The EUT was programmed to be in continuously transmitting mode and the transmit duty cycle is not less than
98%.
Tested System Details
The types for all equipments, plus descriptions of all cables used in the tested system (including inserted cards) are:
Product
1.
Bluetooth Tester
Manufacturer
Model Number
Serial Number
Power Cord
R&S
CBT
100350
NA
3.2. EUT Exercise Software
Setup the EUT shown on 3.3.
Turn on the power of all equipment.
Turn on Bluetooth function and link to Bluetooth tester
EUT run test program.
Measurement Software
EZ-EMC Ver. ATL-03A1-1
EZ-EMC Ver ATL-ITC-3A1-1
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Report Number: 1702FR13
3.3. Configuration of Test System Details
AC Power Conducted Emission
Remote Site
Mobile phone
CBT
AC Input
AC Adapter
Notebook
Charging/Carrying Case
EUT
Radiated Emissions
Remote Site
Mobile Phone
EUT
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CBT
Report Number: 1702FR13
3.4. Test Site Environment
Items
Required (IEC 60068-1)
Actual
Temperature (°C)
15-35
26
Humidity (%RH)
25-75
60
860-1060
950
Barometric pressure (mbar)
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Report Number: 1702FR13
„
„
AC Power Line Conducted Emission Measurement
Limit
Frequency (MHz)
Quasi-peak
Average
0.15 - 0.5
66 to 56
56 to 46
0.50 - 5.0
56
46
5.0 - 30.0
60
50
Test Instruments
Describe
Manufacturer
Model Number
Serial Number
Cal. Date
Remark
Test Receiver
R&S
ESCI
100367
05/13/2016
1 year
LISN
R&S
ENV216
101040
03/15/2016
1 year
LISN
R&S
ENV216
101041
03/07/2016
1 year
RF Cable
Woken
00100D1380194M
TE-02-02
05/31/2016
1 year
Test Site
ATL
TE02
TE02
N.C.R.
-----
Note: N.C.R. = No Calibration Request.
„
Test Setup
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Report Number: 1702FR13
„
Test Procedure
The EUT and simulators are connected to the main power through a line impedance stabilization network (L.I.S.N.).
This provides a 50Ω// 50uH coupling impedance for the measuring equipment. The peripheral devices are also
connected to the main power through a LISN that provides a 50Ω// 50uH coupling impedance with 50ohm
termination.
Tabletop device shall be placed on a non-conducting platform, of nominal size 1 m by 1.5 m, raised 80 cm above
the reference ground plane. The wall of screened room shall be located 40cm to the rear of the EUT. Other surfaces
of tabletop or floor standing EUT shall be at least 80cm from any other ground conducting surface including one or
more LISNs. For floor-standing device shall be placed under the EUT with a 12mm insulating material.
Conducted emissions were investigated over the frequency range from 0.15 MHz to 30 MHz using a resolution
bandwidth of 9 kHz. The equipment under test (EUT) shall be meet the limits in section 4.1, as applicable, including
the average limit and the quasi-peak limit when using respectively, an average detector and quasi-peak detector
measured in accordance with the methods described of related standard. When all of peak value were complied
with quasi-peak and average limit from 150kHz to 30MHz then quasi-peak and average measurement was
unnecessary.
The AMN shall be placed 0,8 m from the boundary of the unit under test and bonded to a ground reference plane for
AMNs mounted on top of the ground reference plane. This distance is between the closest points of the AMN and
the EUT. All other units of the EUT and associated equipment shall be at least 0,8 m from the AMN. If the mains
power cable is longer than 1m then the cable shall be folded back and forth at the centre of the lead to form a
bundle no longer than 0.4m. All of interconnecting cables that hang closer than 40cm to the ground plane shall be
folded back and forth in the center forming a bundle 30 cm to 40 cm long. All of EUT and AE shall be separate place
more than 0.1m. All 50 Ω ports of the LISN shall be resistively terminated into 50 Ω loads when not connected to the
measuring instrument.
If the reading of the measuring receiver shows fluctuations close to the limit, the reading shall be observed for at
least 15 s at each measurement frequency; the higher reading shall be recorded with the exception of any brief
isolated high reading which shall be ignored.
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Report Number: 1702FR13
„
Test Result
Standard:
FCC Part 15C
Power:
AC 120V/60Hz
Test Mode:
Mode 1
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Line:
L1
Date:
12/05/2016
Description:
No. Frequency
QP
AVG
Correction
QP
AVG
QP
AVG
QP
AVG
reading
reading
factor
result
result
limit
limit
margin
margin
(MHz)
(dBuV)
(dBuV)
(dB)
(dBuV)
(dBuV)
(dBuV)
(dBuV)
(dB)
(dB)
0.1500
38.16
14.62
9.60
47.76
24.22
66.00
56.00
-18.24
-31.78
0.1980
45.39
27.38
9.59
54.98
36.97
63.69
53.69
-8.71
-16.72
Pass
0.2580
38.00
18.53
9.60
47.60
28.13
61.50
51.50
-13.90
-23.37
Pass
0.2700
38.51
20.06
9.60
48.11
29.66
61.12
51.12
-13.01
-21.46
Pass
0.3260
32.58
15.69
9.60
42.18
25.29
59.55
49.55
-17.37
-24.26
Pass
0.3900
32.54
14.17
9.60
42.14
23.77
58.06
48.06
-15.92
-24.29
Pass
0.4100
32.54
15.07
9.60
42.14
24.67
57.65
47.65
-15.51
-22.98
Pass
2.1940
31.06
18.15
9.70
40.76
27.85
56.00
46.00
-15.24
-18.15
Pass
2.5860
29.15
15.13
9.71
38.86
24.84
56.00
46.00
-17.14
-21.16
Pass
Note: 1. Result (dBuV) = Correction factor (dB) + Reading(dBuV).
2. Correction factor (dB) = Cable loss (dB) + L.I.S.N. factor (dB).
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Remark
Pass
Report Number: 1702FR13
Standard:
FCC Part 15C
Power:
AC 120V/60Hz
Test Mode:
Mode 1
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Line:
Date:
12/05/2016
Description:
No. Frequency
QP
AVG
Correction
QP
AVG
QP
AVG
QP
AVG
reading
reading
factor
result
result
limit
limit
margin
margin
Remark
(MHz)
(dBuV)
(dBuV)
(dB)
(dBuV)
(dBuV)
(dBuV)
(dBuV)
(dB)
(dB)
0.1940
47.10
27.29
9.58
56.68
36.87
63.86
53.86
-7.18
-16.99
0.2060
48.09
29.05
9.58
57.67
38.63
63.37
53.37
-5.70
-14.74
Pass
0.2540
40.51
17.54
9.59
50.10
27.13
61.63
51.63
-11.53
-24.50
Pass
0.2620
43.19
20.87
9.59
52.78
30.46
61.37
51.37
-8.59
-20.91
Pass
0.2700
43.07
21.71
9.59
52.66
31.30
61.12
51.12
-8.46
-19.82
Pass
0.2780
42.98
20.79
9.59
52.57
30.38
60.88
50.88
-8.31
-20.50
Pass
0.3220
38.07
17.00
9.59
47.66
26.59
59.66
49.66
-12.00
-23.07
Pass
0.3820
38.20
14.09
9.59
47.79
23.68
58.24
48.24
-10.45
-24.56
Pass
Pass
Pass
0.3900
40.39
15.71
9.59
49.98
25.30
58.06
48.06
-8.08
-22.76
10
0.4100
39.75
16.24
9.59
49.34
25.83
57.65
47.65
-8.31
-21.82
Pass
11
0.5060
32.07
21.93
9.60
41.67
31.53
56.00
46.00
-14.33
-14.47
Pass
12
0.5140
35.33
14.86
9.60
44.93
24.46
56.00
46.00
-11.07
-21.54
Pass
13
0.5220
35.93
13.67
9.60
45.53
23.27
56.00
46.00
-10.47
-22.73
Pass
14
0.6380
29.44
11.99
9.60
39.04
21.59
56.00
46.00
-16.96
-24.41
Pass
15
0.6660
29.86
10.42
9.61
39.47
20.03
56.00
46.00
-16.53
-25.97
Pass
16
0.7020
29.41
12.78
9.62
39.03
22.40
56.00
46.00
-16.97
-23.60
Pass
Note: 1. Result (dBuV) = Correction factor (dB) + Reading(dBuV).
2. Correction factor (dB) = Cable loss (dB) + L.I.S.N. factor (dB).
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Report Number: 1702FR13
„
Radiated Emission Measurement
Limit
According to §15.209(a), except as provided elsewhere in this subpart, the emissions from an intentional radiator shall
not exceed the field strength levels specified in the following table:
Frequency
Field Strength
Measurement Distance
(MHz)
(μV/m at meter)
(meters)
0.009 – 0.490
2400 / F (kHz)
300
0.490 – 1.705
24000 / F (kHz)
30
1.705 – 30.0
30
30
30 - 88
100**
88-216
150**
216-960
200**
Above 960
500
** Except as provided in paragraph (g), fundamental emissions from intentional radiators operating under this Section
shall not be located in the frequency bands 54-72 MHz, 76-88 MHz, 174-216 MHz or 470-806 MHz. However,
operation within these frequency bands is permitted under other sections of this Part, e.g., Sections 15.231 and
15.241.
„
Test Instruments
3 Meter Chamber
Equipment
Manufacturer
Model Number
Serial Number
Cal. Date
Cal. Period
RF Pre-selector
Agilent
N9039A
MY46520256
03/22/2016
1 year
Spectrum Analyzer
Agilent
E4446A
MY46180578
03/22/2016
1 year
Pre Amplifier
Agilent
8449B
3008A02237
10/11/2016
1 year
Pre Amplifier
Agilent
8447D
2944A11119
01/11/2016
1 year
Broadband Antenna
Schwarzbeck
VULB9168
416
10/13/2016
1 year
Horn Antenna
(1~18GHz)
SCHWARZBECK
MESS-ELEKTRONIK
BBHA9120D
9120D-550
06/06/2016
1 year
Horn Antenna
(18~40GHz)
ETS
3116
86467
09/05/2016
1 year
Loop Antenna
COM-POWER
CORPORATION
AL-130
121014
02/01/2016
1 year
Microwave Cable
EMCI
EMC102-KM-KM-14000
151001
02/23/2016
1 year
Microwave Cable
EMCI
EMC-104-SM-SM-14000
140202
02/23/2016
1 year
Microwave Cable
EMCI
EMC104-SM-SM-600
140301
02/23/2016
1 year
Test Site
ATL
TE01
888001
08/29/2016
1 year
Note: N.C.R. = No Calibration Request.
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Report Number: 1702FR13
„
Setup
9kHz ~ 30MHz
Below 1GHz
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Report Number: 1702FR13
Above 1GHz
„
Test Procedure
Final radiation measurements were made on a three-meter, Semi Anechoic Chamber. The EUT system was placed
on a nonconductive turntable which is 0.8 or 1.5 meters height(below 1GHz use 0.8m turntable / above 1GHz use
1.5m turntable), top surface 1.0 x 1.5 meter. The spectrum was examined from 250 MHz to 2.5 GHz in order to cover
the whole spectrum below 10th harmonic which could generate from the EUT. During the test, EUT was set to transmit
continuously & Measurements spectrum range from 9 kHz to 26.5 GHz is investigated.
For measurements below 1 GHz the resolution bandwidth is set to 100 kHz for peak detection measurements or 120
kHz for quasi-peak detection measurements. Peak detection is used unless otherwise noted as quasi-peak.
For measurements above 1 GHz the resolution bandwidth is set to 1 MHz, and then the video bandwidth is set to 1
MHz for peak measurements and 10 Hz for average measurements when Duty cycle >98% / 1/T for average
measurements when Duty cycle <98%. A nonconductive material surrounded the EUT to supporting the EUT for
standing on tree orthogonal planes. At each condition, the EUT was rotated 360 degrees, and the antenna was raised
and lowered from one to four meters to find the maximum emission levels. Measurements were taken using both
horizontal and vertical antenna polarization.
SCHWARZBECK MESS-ELEKTRONIK Biconilog Antenna at 3 Meter and the SCHWARZBECK Double Ridged
Guide Antenna was used in frequencies 1 – 26.5 GHz at a distance of 1 meter. All test results were extrapolated to
equivalent signal at 3 meters utilizing an inverse linear distance extrapolation Factor (20dB/decade).
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Report Number: 1702FR13
For testing above 1GHz, the emission level of the EUT in peak mode was 20dB lower than average limit (that means
the emission 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.
Appropriate preamplifiers were used for improving sensitivity and precautions were taken to avoid overloading or
desensitizing the spectrum analyzer. No post – detector video filters were used in the test.
The spectrum analyzer’s 6 dB bandwidth was set to 1 MHz, and the analyzer was operated in the peak detection
mode, for frequencies both below and up 1 GHz. The average levels were obtained by subtracting the duty cycle
correction factor from the peak readings.
The following procedures were used to convert the emission levels measured in decibels referenced to 1 microvolt
(dBuV) into field intensity in micro volts pre meter (uV/m).
The actual field intensity in decibels referenced to 1 microvolt in to field intensity in micro colts per meter (dBuV/m).
The actual field is intensity in referenced to 1 microvolt per meter (dBuV/m) is determined by algebraically adding
the measured reading in dBuV, the antenna factor (dB), and cable loss (dB) and Subtracting the gain of preamplifier
(dB) is auto calculate in spectrum analyzer.
(1) Amplitude (dBuV/m) = FI (dBuV) +AF (dBuV) +CL (dBuV)-Gain (dB)
FI= Reading of the field intensity.
AF= Antenna factor.
CL= Cable loss.
P.S Amplitude is auto calculate in spectrum analyzer.
(2) Actual Amplitude (dBuV/m) = Amplitude (dBuV)-Dis(dB)
The FCC specified emission limits were calculated according the EUT operating frequency and by following
linear interpolation equations:
(a) For fundamental frequency : Transmitter Output < +30dBm
(b) For spurious frequency : Spurious emission limits = fundamental emission limit /10
Data of measurement within this frequency range without mark 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.
17 of 40
Report Number: 1702FR13
„
Test Result
Below 1GHz
Standard:
FCC Part 15C
Test Distance:
3m
Test Mode:
Mode 1
Power:
DC 3.7V
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Date:
12/18/2016
Frequency
Reading
Correct Factor
Result
Limit
Margin
Remark
Ant.Polar.
(MHz)
(dBuV)
(dB/m)
(dBuV/m)
(dBuV/m)
(dB)
152.5000
21.30
-5.22
16.08
43.50
-27.42
QP
282.0000
19.79
-3.88
15.91
46.00
-30.09
QP
403.5000
22.09
-1.59
20.50
46.00
-25.50
QP
586.0000
21.34
2.51
23.85
46.00
-22.15
QP
723.0000
22.37
5.29
27.66
46.00
-18.34
QP
887.0000
20.55
8.33
28.88
46.00
-17.12
QP
150.0000
22.25
-5.29
16.96
43.50
-26.54
QP
305.0000
18.95
-3.30
15.65
46.00
-30.35
QP
441.0000
23.01
-0.45
22.56
46.00
-23.44
QP
598.5000
22.33
2.88
25.21
46.00
-20.79
QP
773.0000
22.93
6.33
29.26
46.00
-16.74
QP
921.0000
22.01
9.04
31.05
46.00
-14.95
QP
H/V
Note: 1. Result (dBuV) = Correction factor (dB) + Reading(dBuV).
2. Correction factor (dB/m) = Antenna Factor (dB/m) + Cable loss (dB) – Pre-Amplifier gain (dB).
3. No emission found between lowest internal used/generated frequencies to 30MHz (9 kHz~30MHz).
18 of 40
Report Number: 1702FR13
Above 1GHz
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Harmonic
Power:
DC 3.7V
Frequency:
2402MHz
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Mode:
Mode 2
Date:
12/18/2016
Ant.Polar.:
Horizontal
No.
Frequency
Reading
Correct Factor
Result
Limit
Margin
(MHz)
(dBuV)
(dB/m)
(dBuV/m)
(dBuV/m)
(dB)
4804.000
50.53
-8.01
42.52
74.00
-31.48
Note:1.Result (dBuV/m) = Correct Factor (dB/m) + Reading(dBuV).
2.Correction factor (dB/m) = Antenna Factor (dB/m) + Cable loss (dB) – Pre-Amplifier gain (dB).
3. When the peak results are less than average limit, so not need to evaluate the average.
19 of 40
Remark
peak
Report Number: 1702FR13
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Harmonic
Power:
DC 3.7V
Frequency:
2402MHz
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Mode:
Mode 2
Date:
12/18/2016
Ant.Polar.:
Vertical
No.
Frequency
Reading
Correct Factor
Result
Limit
Margin
(MHz)
(dBuV)
(dB/m)
(dBuV/m)
(dBuV/m)
(dB)
4804.000
49.81
-8.01
41.80
74.00
-32.20
Note:1.Result (dBuV/m) = Correct Factor (dB/m) + Reading(dBuV).
2.Correction factor (dB/m) = Antenna Factor (dB/m) + Cable loss (dB) – Pre-Amplifier gain (dB).
3. When the peak results are less than average limit, so not need to evaluate the average.
20 of 40
Remark
peak
Report Number: 1702FR13
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Harmonic
Power:
DC 3.7V
Frequency:
2440MHz
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Mode:
Mode 2
Date:
12/18/2016
Ant.Polar.:
Horizontal
No.
Frequency
Reading
Correct Factor
Result
Limit
Margin
(MHz)
(dBuV)
(dB/m)
(dBuV/m)
(dBuV/m)
(dB)
4880.000
50.71
-7.77
42.94
74.00
-31.06
Note:1.Result (dBuV/m) = Correct Factor (dB/m) + Reading(dBuV).
2.Correction factor (dB/m) = Antenna Factor (dB/m) + Cable loss (dB) – Pre-Amplifier gain (dB).
3. When the peak results are less than average limit, so not need to evaluate the average.
21 of 40
Remark
peak
Report Number: 1702FR13
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Harmonic
Power:
DC 3.7V
Frequency:
2440MHz
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Mode:
Mode 2
Date:
12/18/2016
Ant.Polar.:
Vertical
No.
Frequency
Reading
Correct Factor
Result
Limit
Margin
(MHz)
(dBuV)
(dB/m)
(dBuV/m)
(dBuV/m)
(dB)
4880.000
50.76
-7.77
42.99
74.00
-31.01
Note:1.Result (dBuV/m) = Correct Factor (dB/m) + Reading(dBuV).
2.Correction factor (dB/m) = Antenna Factor (dB/m) + Cable loss (dB) – Pre-Amplifier gain (dB).
3. When the peak results are less than average limit, so not need to evaluate the average.
22 of 40
Remark
peak
Report Number: 1702FR13
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Harmonic
Power:
DC 3.7V
Frequency:
2480MHz
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Mode:
Mode 2
Date:
12/18/2016
Ant.Polar.:
Horizontal
No.
Frequency
Reading
Correct Factor
Result
Limit
Margin
(MHz)
(dBuV)
(dB/m)
(dBuV/m)
(dBuV/m)
(dB)
4960.000
50.27
-7.52
42.75
74.00
-31.25
Note:1.Result (dBuV/m) = Correct Factor (dB/m) + Reading(dBuV).
2.Correction factor (dB/m) = Antenna Factor (dB/m) + Cable loss (dB) – Pre-Amplifier gain (dB).
3. When the peak results are less than average limit, so not need to evaluate the average.
23 of 40
Remark
peak
Report Number: 1702FR13
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Harmonic
Power:
DC 3.7V
Frequency:
2480MHz
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Mode:
Mode 2
Date:
12/18/2016
Ant.Polar.:
Vertical
No.
Frequency
Reading
Correct Factor
Result
Limit
Margin
(MHz)
(dBuV)
(dB/m)
(dBuV/m)
(dBuV/m)
(dB)
4960.000
50.15
-7.52
42.63
74.00
-31.37
Note:1.Result (dBuV/m) = Correct Factor (dB/m) + Reading(dBuV).
2.Correction factor (dB/m) = Antenna Factor (dB/m) + Cable loss (dB) – Pre-Amplifier gain (dB).
3. When the peak results are less than average limit, so not need to evaluate the average.
24 of 40
Remark
peak
Report Number: 1702FR13
Band Edge
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Band edge
Power:
DC 3.7V
Frequency:
2402MHz
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Mode:
Mode 2
Date:
12/18/2016
Ant.Polar.:
Horizontal
No.
Frequency
Reading
Correct Factor
Result
Limit
Margin
(MHz)
(dBuV)
(dB/m)
(dBuV/m)
(dBuV/m)
(dB)
2375.340
38.52
-0.32
38.20
74.00
-35.80
peak
2390.000
35.99
-0.26
35.73
74.00
-38.27
peak
Note:1.Result (dBuV/m) = Correct Factor (dB/m) + Reading(dBuV).
2.Correction factor (dB/m) = Antenna Factor (dB/m) + Cable loss (dB) – Pre-Amplifier gain (dB).
3. When the peak results are less than average limit, so not need to evaluate the average.
25 of 40
Remark
Report Number: 1702FR13
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Band edge
Power:
DC 3.7V
Frequency:
2402MHz
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Mode:
Mode 2
Date:
12/18/2016
Ant.Polar.:
Vertical
No.
Frequency
Reading
Correct Factor
Result
Limit
Margin
(MHz)
(dBuV)
(dB/m)
(dBuV/m)
(dBuV/m)
(dB)
2376.880
39.05
-0.31
38.74
74.00
-35.26
peak
2390.000
37.45
-0.26
37.19
74.00
-36.81
peak
Note:1.Result (dBuV/m) = Correct Factor (dB/m) + Reading(dBuV).
2.Correction factor (dB/m) = Antenna Factor (dB/m) + Cable loss (dB) – Pre-Amplifier gain (dB).
3. When the peak results are less than average limit, so not need to evaluate the average.
26 of 40
Remark
Report Number: 1702FR13
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Band edge
Power:
DC 3.7V
Frequency:
2480MHz
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Mode:
Mode 2
Date:
12/18/2016
Ant.Polar.:
Horizontal
No.
Frequency
Reading
Correct Factor
Result
Limit
Margin
(MHz)
(dBuV)
(dB/m)
(dBuV/m)
(dBuV/m)
(dB)
2483.500
35.84
0.11
35.95
74.00
-38.05
peak
2484.500
39.66
0.12
39.78
74.00
-34.22
peak
Note:1.Result (dBuV/m) = Correct Factor (dB/m) + Reading(dBuV).
2.Correction factor (dB/m) = Antenna Factor (dB/m) + Cable loss (dB) – Pre-Amplifier gain (dB).
3. When the peak results are less than average limit, so not need to evaluate the average.
27 of 40
Remark
Report Number: 1702FR13
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Band edge
Power:
DC 3.7V
Frequency:
2480MHz
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Mode:
Mode 2
Date:
12/18/2016
Ant.Polar.:
Vertical
No.
Frequency
Reading
Correct Factor
Result
Limit
Margin
(MHz)
(dBuV)
(dB/m)
(dBuV/m)
(dBuV/m)
(dB)
2483.500
37.12
0.11
37.23
74.00
-36.77
peak
2485.560
41.69
0.12
41.81
74.00
-32.19
peak
Note:1.Result (dBuV/m) = Correct Factor (dB/m) + Reading(dBuV).
2.Correction factor (dB/m) = Antenna Factor (dB/m) + Cable loss (dB) – Pre-Amplifier gain (dB).
3. When the peak results are less than average limit, so not need to evaluate the average.
28 of 40
Remark
Report Number: 1702FR13
„
Maximum Conducted Output Power Measurement
Limit
For systems using digital modulation in the 2400-2483.5MHz, the limit for peak output power is 30dBm.
„
Test Setup
„
Power
Meter
Power
Sensor
EUT
Test Instruments
Equipment
Manufacturer
Model Number
Serial Number
Cal. Date
Remark
Power Sensor
Anritsu
MA2411B
1126022
08/29/2016
1 year
Power Meter
Anritsu
ML2495A
1135009
08/29/2016
1 year
Microwave Cable
EMCI
EMC104-SM-S
M-1500
140303
02/23/2016
1 year
Test Site
ATL
TE05
TE05
N.C.R.
-----
Note: N.C.R. = No Calibration Request.
„
Test Procedure
T he tests below are run with the EUT’s transmitter set at high power in TX mode. The EUT is needed to force
selection of output power level and channel number. While testing, EUT was set to transmit continuously. Remove the
Subjective device’s antenna and connect the RF output port to power sensor..
„
Test Result
Test Date:
12/05/2016
Average Power
Peak Power
Frequency
(MHz)
(dBm)
(W)
(dBm)
(W)
Limit
(dBm)
2402
5.83
0.00383
6.10
0.00407
< 30
2440
6.01
0.00399
6.32
0.00429
< 30
2480
5.92
0.00391
6.23
0.00420
< 30
Note: The relevant measured result has the offset with cable loss already.
29 of 40
Report Number: 1702FR13
„
6dB RF Bandwidth Measurement
Limit
6dB RF Bandwidth: Systems using digital modulation techniques may operate in the 2400–2483.5 MHz bands. The
minimum 6 dB band-width shall be at least 500 kHz.
„
Test Setup
Spectrum Analyzer
RF Cable
EUT
„
Test Instruments
Equipment
Manufacturer
Model Number
Serial Number
Cal. Date
Remark
Spectrum Analyzer
Agilent
E4445A
MY45300744
12/19/2016
1 year
Microwave Cable
EMCI
EMC104-SM-S
M-1500
140303
02/23/2016
1 year
Test Site
ATL
TE05
TE05
N.C.R.
-----
Note: N.C.R. = No Calibration Request.
„
Test Procedure
The EUT tested to DTS test procedure of KDB558074D01 for compliance to FCC 47CFR 15.247 requirements.
6dB RF Bandwidth: The antenna port of the EUT was connected to the input of a spectrum analyzer. Analyzer RBW
was set to 100 kHz. For each RF output channel investigated, the spectrum analyzer center frequency was set to
the channel carrier. A peak output reading was taken, a DISPLAY line was drawn 6 dB lower than peak level. The 6
dB bandwidth was determined from where the channel output spectrum intersected the display line.
The test was performed at 3 channels (Channel low, middle, high)
30 of 40
Report Number: 1702FR13
„
Test Result
Test Date:
12/19/2016
Frequency
(MHz)
Measurement Results
(kHz)
Limit
(kHz)
2402
701.077
> 500
2440
706.192
> 500
2480
708.740
> 500
31 of 40
Report Number: 1702FR13
„
Test Graphs
Test Mode:
Mode 2
2402 MHz
2440 MHz
2480 MHz
32 of 40
Report Number: 1702FR13
„
Maximum Power Density Measurement
Limit
For digitally modulated systems, the power spectral density conducted from the intentional radiator to the antenna
shall not be greater than 8 dBm in any 3 kHz band during any time interval of continuous transmission.
„
Test Setup
Spectrum Analyzer
RF Cable
EUT
„
Test Instruments
Equipment
Manufacturer
Model Number
Serial Number
Cal. Date
Remark
Spectrum Analyzer
Agilent
E4445A
MY45300744
12/19/2016
1 year
Microwave Cable
EMCI
EMC104-SM-S
M-1500
140303
02/23/2016
1 year
Test Site
ATL
TE05
TE05
N.C.R.
-----
Note: N.C.R. = No Calibration Request.
„
Test Procedure
The EUT tested to DTS test procedure of KDB558074D01 for compliance to FCC 47CFR 15.247 requirements.
1.
Set analyzer center frequency to DTS channel center frequency.
2.
Set the span to 1.5 times the DTS bandwidth.
3.
Set the RBW to: 3 kHz ≤ RBW ≤ 100 kHz.
4.
Set the VBW ≥ 3 × RBW.
5.
Detector = peak.
6.
Sweep time = auto couple.
7.
Trace mode = max hold.
8.
Allow trace to fully stabilize.
9.
Use the peak marker function to determine the maximum amplitude level within the RBW.
10. If measured value exceeds limit, reduce RBW (no less than 3 kHz) and repeat.
33 of 40
Report Number: 1702FR13
„
Test Result
Test Date:
12/19/2016
Frequency
(MHz)
Measurement Results
(dBm/3KHz)
Limit
(dBm)
2402
-11.120
<8
2440
-8.206
<8
2480
-8.934
<8
34 of 40
Report Number: 1702FR13
„
Test Graphs
Test Mode:
Mode 2
2402 MHz
2440 MHz
2480 MHz
35 of 40
Report Number: 1702FR13
„
Out of Band Conducted Emissions Measurement
Limit
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
„
Test Setup
Spectrum Analyzer
RF Cable
EUT
„
Test Instruments
Equipment
Manufacturer
Model Number
Serial Number
Cal. Date
Remark
Spectrum Analyzer
Agilent
E4445A
MY45300744
12/19/2016
1 year
Spectrum Analyzer
Agilent
E4408B
MY45107753
08/08/2016
1 year
Microwave Cable
EMCI
EMC104-SM-S
M-1500
140303
02/23/2016
1 year
Test Site
ATL
TE05
TE05
N.C.R.
-----
Note: N.C.R. = No Calibration Request.
„
Test Procedure
In any 100 kHz bandwidth outside the EUT pass band, the RF power produced by the modulation products of the
spreading sequence, the information sequence, and the carrier frequency shall be at least 20 dB below that of the
maximum in-band 100 kHz emission, antenna output of the EUT was coupled directly to spectrum analyzer; if an
external attenuator and/or cable was used, these losses are compensated for with the analyzer OFFSET function.
All other types of emissions from the EUT shall meet the general limits for radiated frequencies outside the pass band.
The test was performed at 3 channels.
36 of 40
Report Number: 1702FR13
„
Test Graphs
Reference level
Test Date:
12/19/2016
Test Mode:
Mode 2
2402 MHz
2440 MHz
2480 MHz
37 of 40
Report Number: 1702FR13
Out of Band Conducted Spurious Emission
Test Date:
12/19/2016
Test Mode:
Mode 2
2402 MHz
2440 MHz
2480 MHz
38 of 40
Report Number: 1702FR13
Conducted Band Edge
Test Date:
12/19/2016
Test Mode:
Mode 2
2402 MHz
2480 MHz
39 of 40
Report Number: 1702FR13
10 Antenna Measurement
„
Limit
For intentional device, according to 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 15.247 (b), if transmitting antennas of directional gain greater than 6 dBi are used, the power shall
be reduced by the amount in dB that the directional gain of the antenna exceeds 6dBi.
„
Antenna Connector Construction
See section 2 – antenna information.
40 of 40
Download: 00000NU317 IQbuds Test Report 1702FR13_Part 15.247 LE _17-0082_ Nuheara Limited
Mirror Download [FCC.gov]00000NU317 IQbuds Test Report 1702FR13_Part 15.247 LE _17-0082_ Nuheara Limited
Document ID3301496
Application ID0gGgWMvcXOkKlVKjPNGWVg==
Document DescriptionRF Test Report
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Permanent ConfidentialNo
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Document TypeTest Report
Display FormatAdobe Acrobat PDF - pdf
Filesize38.61kB (482566 bits)
Date Submitted2017-03-02 00:00:00
Date Available2017-03-02 00:00:00
Creation Date2017-02-14 17:28:57
Producing SoftwareAcrobat Distiller 8.1.0 (Windows)
Document Lastmod2017-02-24 15:31:42
Document Title1702FR13_Part 15.247 LE _17-0082_
Document CreatorPScript5.dll Version 5.2.2
Document Author: snow

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