00000NU317 IQbuds Test Report 1702FR12_Part 15.247 BT _17-0082_ Nuheara Limited

Nuheara Limited IQbuds

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Report Number: 1702FR12
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 67
Report Number: 1702FR12
Revision History
Rev.
Issue Date
00
Feb. 15, 2017
Revisions
Initial Issue
Revised By
Snow Wang
2 of 67
Report Number: 1702FR12
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 67
:
(Eric Ou Yang)
Report Number: 1702FR12
TABLE OF CONTENTS
General Information .................................................................................................................... 5
1.1. Summary of Test Result ....................................................................................................... 5
1.2. Measurement Uncertainty .................................................................................................... 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
Maximum Conducted Output Power Measurement ............................................................... 10
AC Power Line Conducted Emission Measurement .............................................................. 12
Radiated Interference Measurement ....................................................................................... 16
20dB RF Bandwidth Measurement .......................................................................................... 45
Carrier Frequency Separation Measurement ......................................................................... 49
Number of Hopping Measurement .......................................................................................... 53
10
Time of Occupancy (Dwell Time) Measurement ..................................................................... 57
11
Out of Band Conducted Emissions Measurement ................................................................. 62
12
Antenna Measurement.............................................................................................................. 67
4 of 67
Report Number: 1702FR12
General Information
1.1.
Summary of Test Result
FCC Standard
Item
Result
Remark
15.207
AC Power Conducted Emission
PASS
-----
15.203
Antenna Requirement
PASS
-----
Max. Output Power
PASS
-----
Transmitter Radiated Emissions
PASS
-----
15.247(a)(1)
20dB RF Bandwidth
PASS
-----
15.247(a)(1)
Carrier Frequency Separation
PASS
-----
15.247(a)(1)(iii)
Number of Hopping
PASS
-----
15.247(a)(1)(iii)
Time of Occupancy (Dwell Time)
PASS
-----
15.247(d)
Out of Band Conducted Spurious
Emission
PASS
-----
15.247(b)(1)
15.247(d)
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
5 of 67
Report Number: 1702FR12
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
IQbuds
Trade Name
NUHEARA
Model Number
NU317
FCC ID
2AKMG00000NU317
Frequency Range
2402 ~ 2480 MHz
Modulation Type
GFSK for 1Mbps
π/4-DQPSK for 2Mbps
8DPSK for 3Mbps
Antenna Type
Ceramic 1206 Antenna
Antenna Gain
0.5 dBi
RF Output Power
GFSK for 1Mbps
7.05
dBm / 0.00507
(Conducted)
π/4-DQPSK for 2Mbps
5.27
dBm / 0.00337
8DPSK for 3Mbps
5.57
dBm / 0.00361
6 of 67
Report Number: 1702FR12
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:
Pre-Test Mode
Mode 1: Continuous TX mode
Mode 2: GFSK Link Mode
Mode 3: π/4-DQPSK Link Mode
Mode 4: 8DPSK Link Mode
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.
Final-Test Mode
Mode 1: Continuous TX mode
Mode 2: GFSK Link Mode
Mode 4: 8DPSK Link Mode
Description of Test Modes
Preliminary tests were performed in different modulation to find the worst case. The modulation has shown the
worst-case in section 4.5. Investigation has been done on all the possible configurations for searching the worst
cases.
Tested System Details
The types for all equipments, plus descriptions of all cables used in the tested system (including inserted cards) are:
Product
1.
3.2.
Bluetooth Tester
Manufacturer
Model Number
Serial Number
Power Cord
R&S
CBT
100350
NA
EUT Exercise Software
Setup the EUT and Bluetooth Tester (CBT) as 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
7 of 67
Report Number: 1702FR12
3.3.
Configuration of Test System Details
Conducted Emissions
Remote Site
Mobile phone
CBT
AC Input
AC Adapter
Notebook
Charging/Carrying Case
EUT
Radiated Emissions
Remote Site
Mobile Phone
EUT
8 of 67
CBT
Report Number: 1702FR12
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)
9 of 67
Report Number: 1702FR12
Maximum Conducted Output Power Measurement
„
Limit
For frequency hopping systems operating in the 2400–2483.5 MHz band employing at least 75 non-overlapping
hopping channels < 0.125 watt.
„
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-SM-1
500
140303
02/23/2016
1 year
Test Site
ATL
TE05
TE05
N.C.R.
-----
NOTE: N.C.R. = No Calibration Request.
„
Test Procedure
Testing must be done according to this procedure, FCC Public Notice DA 00-705 - Filing and Measurement
Guidelines for Frequency Hopping Spread Spectrum Systems. This is the only method recognized by the FCC. The
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. The maximum peak output power
shall not exceed 1 watt.
Use a direct connection between the antenna port of transmitter and the power sensor, for prevent the power
sensor input attenuation 40-50 dB. Set the RBW Bandwidth of the emission or use a channel power meter mode.
For antennas with gains of 6 dBi or less, maximum allowed transmitter output is 1 watt (+30 dBm). For antennas
with gains greater than 6 dBi, transmitter output level must be decreased by an amount equal to (GAIN - 6)/3 dBm.
The antenna port of the EUT was connected to the input of a power sensor. Power was read directly and cable loss
correction was added to the reading to obtain power at the EUT antenna terminals.
10 of 67
Report Number: 1702FR12
„
Test Result
Test Mode
Frequency
(MHz)
2402
Mode 2
2441
2480
2402
Mode 3
2441
2480
2402
Mode 4
2441
2480
Average Power
Peak Power
(dBm)
(W)
(dBm)
(W)
Limit
(W)
DH1
4.04
0.00254
4.28
0.00268
< 0.125
DH3
4.07
0.00255
4.30
0.00269
< 0.125
DH5
4.11
0.00258
4.44
0.00278
< 0.125
DH1
6.14
0.00411
6.88
0.00488
< 0.125
DH3
6.20
0.00417
7.02
0.00504
< 0.125
DH5
6.24
0.00421
7.05
0.00507
< 0.125
DH1
5.26
0.00336
5.56
0.00360
< 0.125
DH3
5.30
0.00339
5.62
0.00365
< 0.125
DH5
5.39
0.00346
5.69
0.00371
< 0.125
2DH1
-0.77
0.00084
2.00
0.00158
< 0.125
2DH3
-0.73
0.00085
2.03
0.00160
< 0.125
2DH5
-0.67
0.00086
2.08
0.00161
< 0.125
2DH1
1.09
0.00129
5.18
0.00330
< 0.125
2DH3
1.20
0.00132
5.21
0.00332
< 0.125
2DH5
1.27
0.00134
5.27
0.00337
< 0.125
2DH1
1.14
0.00130
4.01
0.00252
< 0.125
2DH3
1.20
0.00132
4.05
0.00254
< 0.125
2DH5
1.22
0.00132
4.07
0.00255
< 0.125
3DH1
-0.73
0.00085
2.46
0.00176
< 0.125
3DH3
-0.66
0.00086
2.53
0.00179
< 0.125
3DH5
-0.64
0.00086
2.56
0.00180
< 0.125
3DH1
1.37
0.00137
5.44
0.00350
< 0.125
3DH3
1.41
0.00138
5.46
0.00352
< 0.125
3DH5
1.55
0.00143
5.57
0.00361
< 0.125
3DH1
1.16
0.00131
4.31
0.00270
< 0.125
3DH3
1.21
0.00132
4.36
0.00273
< 0.125
3DH5
1.23
0.00133
4.38
0.00274
< 0.125
Packet Type
Note: The relevant measured result has the offset with cable loss already.
11 of 67
Report Number: 1702FR12
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
05/31/2016
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
12 of 67
Report Number: 1702FR12
„
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.
13 of 67
Report Number: 1702FR12
„
Test Result
Standard:
FCC Part 15C
Line:
L1
Test item:
Conducted Emission
Power:
AC 120V/60Hz
Test Mode:
Mode 1
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
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)
0.1500
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/m) = Correct Factor (dB/m) + Reading(dBuV).
2. Correction factor (dB) = Cable loss (dB) + L.I.S.N. factor (dB).
14 of 67
Pass
Report Number: 1702FR12
Standard:
FCC Part 15C
Line:
Test item:
Conducted Emission
Power:
AC 120V/60Hz
Test Mode:
Mode 1
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
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
Pass
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
0.3900
40.39
15.71
9.59
49.98
25.30
58.06
48.06
-8.08
-22.76
Pass
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/m) = Correct Factor (dB/m) + Reading(dBuV).
2. Correction factor (dB) = Cable loss (dB) + L.I.S.N. factor (dB).
15 of 67
Report Number: 1702FR12
Radiated Interference 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
01/08/2016
1 year
Spectrum Analyzer
Agilent
E4446A
MY46180578
01/08/2016
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.
16 of 67
Report Number: 1702FR12
„
Setup
9kHz ~ 30MHz
Below 1GHz
17 of 67
Report Number: 1702FR12
Above 1GHz
18 of 67
Report Number: 1702FR12
„
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.
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).
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.
19 of 67
Report Number: 1702FR12
„
Test Result
Below 1GHz
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Radiated Emission
Power:
DC 3.7V
Test Mode:
Mode 1
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)
232.0000
27.06
-6.93
20.13
46.00
-25.87
QP
375.0000
26.07
-2.18
23.89
46.00
-22.11
QP
491.5000
24.94
0.58
25.52
46.00
-20.48
QP
627.5000
24.39
3.46
27.85
46.00
-18.15
QP
782.5000
24.16
6.46
30.62
46.00
-15.38
QP
851.5000
23.74
7.59
31.33
46.00
-14.67
QP
253.0000
25.96
-5.20
20.76
46.00
-25.24
QP
389.5000
26.51
-1.91
24.60
46.00
-21.40
QP
553.5000
23.49
1.56
25.05
46.00
-20.95
QP
716.5000
24.41
5.11
29.52
46.00
-16.48
QP
848.5000
22.85
7.53
30.38
46.00
-15.62
QP
923.5000
23.12
9.10
32.22
46.00
-13.78
QP
H/V
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.No emission found between lowest internal used/generated frequencies to 30MHz (9 kHz~30MHz).
20 of 67
Report Number: 1702FR12
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
50.71
-8.01
42.70
74.00
-31.30
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 67
Remark
peak
Report Number: 1702FR12
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
51.15
-8.01
43.14
74.00
-30.86
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 67
Remark
peak
Report Number: 1702FR12
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Harmonic
Power:
DC 3.7V
Frequency:
2441MHz
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)
4882.000
50.82
-7.77
43.05
74.00
-30.95
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 67
Remark
peak
Report Number: 1702FR12
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Harmonic
Power:
DC 3.7V
Frequency:
2441MHz
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)
4882.000
51.52
-7.77
43.75
74.00
-30.25
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.
24 of 67
Remark
peak
Report Number: 1702FR12
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
50.62
-7.52
43.10
74.00
-30.90
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 67
Remark
peak
Report Number: 1702FR12
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
50.06
-7.52
42.54
74.00
-31.46
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 67
Remark
peak
Report Number: 1702FR12
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Harmonic
Power:
DC 3.7V
Frequency:
2402MHz
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Mode:
Mode 4
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
50.13
-8.01
42.12
74.00
-31.88
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 67
Remark
peak
Report Number: 1702FR12
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Harmonic
Power:
DC 3.7V
Frequency:
2402MHz
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Mode:
Mode 4
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
50.17
-8.01
42.16
74.00
-31.84
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 67
Remark
peak
Report Number: 1702FR12
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Harmonic
Power:
DC 3.7V
Frequency:
2441MHz
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Mode:
Mode 4
Date:
12/18/2016
Ant.Polar.:
Horizontal
No.
Frequency
Reading
Correct Factor
Result
Limit
Margin
(MHz)
(dBuV)
(dB/m)
(dBuV/m)
(dBuV/m)
(dB)
4882.000
49.89
-7.77
42.12
74.00
-31.88
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.
29 of 67
Remark
peak
Report Number: 1702FR12
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Harmonic
Power:
DC 3.7V
Frequency:
2441MHz
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Mode:
Mode 4
Date:
12/18/2016
Ant.Polar.:
Vertical
No.
Frequency
Reading
Correct Factor
Result
Limit
Margin
(MHz)
(dBuV)
(dB/m)
(dBuV/m)
(dBuV/m)
(dB)
4882.000
49.56
-7.77
41.79
74.00
-32.21
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.
30 of 67
Remark
peak
Report Number: 1702FR12
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Harmonic
Power:
DC 3.7V
Frequency:
2480MHz
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Mode:
Mode 4
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
51.15
-7.52
43.63
74.00
-30.37
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.
31 of 67
Remark
peak
Report Number: 1702FR12
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Harmonic
Power:
DC 3.7V
Frequency:
2480MHz
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Mode:
Mode 4
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
51.84
-7.52
44.32
74.00
-29.68
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.
32 of 67
Remark
peak
Report Number: 1702FR12
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)
2389.640
50.09
-0.26
49.83
74.00
-24.17
peak
2390.000
35.38
-0.26
35.12
74.00
-38.88
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.
33 of 67
Remark
Report Number: 1702FR12
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)
2383.920
46.12
-0.29
45.83
74.00
-28.17
peak
2390.000
35.71
-0.26
35.45
74.00
-38.55
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.
34 of 67
Remark
Report Number: 1702FR12
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
37.59
0.11
37.70
74.00
-36.30
peak
2483.560
59.71
0.11
59.82
74.00
-14.18
peak
2483.560
32.30
0.11
32.41
54.00
-21.59
AVG
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.
35 of 67
Remark
Report Number: 1702FR12
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
36.96
0.11
37.07
74.00
-36.93
peak
2483.960
56.34
0.12
56.46
74.00
-17.54
peak
2483.960
32.24
0.12
32.36
54.00
-21.64
AVG
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.
36 of 67
Remark
Report Number: 1702FR12
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Band edge
Power:
DC 3.7V
Frequency:
Hopping
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)
2380.300
44.58
-0.30
44.28
74.00
-29.72
peak
2390.000
38.21
-0.26
37.95
74.00
-36.05
peak
2483.500
40.56
0.11
40.67
74.00
-33.33
peak
2497.910
46.27
0.17
46.44
74.00
-27.56
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.
37 of 67
Remark
Report Number: 1702FR12
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Band edge
Power:
DC 3.7V
Frequency:
Hopping
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)
2385.050
45.05
-0.28
44.77
74.00
-29.23
peak
2390.000
38.95
-0.26
38.69
74.00
-35.31
peak
2483.500
41.25
0.11
41.36
74.00
-32.64
peak
2490.500
43.34
0.14
43.48
74.00
-30.52
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.
38 of 67
Remark
Report Number: 1702FR12
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 4
Date:
12/18/2016
Ant.Polar.:
Horizontal
No.
Frequency
Reading
Correct Factor
Result
Limit
Margin
(MHz)
(dBuV)
(dB/m)
(dBuV/m)
(dBuV/m)
(dB)
2389.310
51.56
-0.26
51.30
74.00
-22.70
peak
2390.000
35.20
-0.26
34.94
74.00
-39.06
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.
39 of 67
Remark
Report Number: 1702FR12
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 4
Date:
12/18/2016
Ant.Polar.:
Vertical
No.
Frequency
Reading
Correct Factor
Result
Limit
Margin
(MHz)
(dBuV)
(dB/m)
(dBuV/m)
(dBuV/m)
(dB)
2388.980
47.68
-0.26
47.42
74.00
-26.58
peak
2390.000
35.53
-0.26
35.27
74.00
-38.73
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.
40 of 67
Remark
Report Number: 1702FR12
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 4
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
36.70
0.11
36.81
74.00
-37.19
peak
2484.180
58.33
0.12
58.45
74.00
-15.55
peak
2484.180
32.27
0.12
32.39
54.00
-21.61
AVG
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.
41 of 67
Remark
Report Number: 1702FR12
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 4
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
36.39
0.11
36.50
74.00
-37.50
peak
2485.580
54.79
0.12
54.91
74.00
-19.09
peak
2485.580
32.17
0.12
32.29
54.00
-21.71
AVG
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.
42 of 67
Remark
Report Number: 1702FR12
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Band edge
Power:
DC 3.7V
Frequency:
Hopping
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Mode:
Mode 4
Date:
12/18/2016
Ant.Polar.:
Horizontal
No.
Frequency
Reading
Correct Factor
Result
Limit
Margin
(MHz)
(dBuV)
(dB/m)
(dBuV/m)
(dBuV/m)
(dB)
2385.050
44.76
-0.28
44.48
74.00
-29.52
peak
2390.000
37.82
-0.26
37.56
74.00
-36.44
peak
2483.500
41.43
0.11
41.54
74.00
-32.46
peak
2490.880
48.92
0.14
49.06
74.00
-24.94
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.
43 of 67
Remark
Report Number: 1702FR12
Standard:
FCC Part 15C
Test Distance:
3m
Test item:
Band edge
Power:
DC 3.7V
Frequency:
Hopping
Temp.(℃)/Hum.(%RH):
26(℃)/60%RH
Mode:
Mode 4
Date:
12/18/2016
Ant.Polar.:
Vertical
No.
Frequency
Reading
Correct Factor
Result
Limit
Margin
(MHz)
(dBuV)
(dB/m)
(dBuV/m)
(dBuV/m)
(dB)
2386.570
40.48
-0.28
40.20
74.00
-33.80
peak
2390.000
36.14
-0.26
35.88
74.00
-38.12
peak
2483.500
42.34
0.11
42.45
74.00
-31.55
peak
2493.730
47.04
0.15
47.19
74.00
-26.81
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.
44 of 67
Remark
Report Number: 1702FR12
20dB RF Bandwidth Measurement
„
Limit
N/A
„
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-SM-1
500
140303
02/23/2016
1 year
Test Site
ATL
TE05
TE05
N.C.R.
-----
NOTE: N.C.R. = No Calibration Request.
45 of 67
Report Number: 1702FR12
„
Test Procedure
20dB RF Bandwidth
Testing must be done according to this procedure, FCC Public Notice DA 00-705 - Filing and Measurement
Guidelines for Frequency Hopping Spread Spectrum Systems. This is the only method recognized by the FCC. The
RF output port of the Equipment-Under-Test is directly coupled to the input of the EMC analyzer through a
specialized RF connector and a 10dB passive attenuator. A fully charged battery was used for the supply voltage.
The Bluetooth frequency hopping function of the EUT was enabled. The spectrum analyzer used the following
settings:
1. Span = approx. 2 to 3 times the 20dB bandwidth, centered on a hopping frequency
2. RBW
≥
1% of the 20dB span
3. VBW
≥
RBW
4. Sweep = auto
5. Detector function = peak
6. Trace = max hold
The trace was allowed to stabilize. The EUT was transmitting at its maximum data rate. The marker-to-peak
function was used to set the marker to the peak of the emission. The marker-delta function was used to measure
20dB down one side of the emission. The marker-delta function and marker was moved to the other side of the
emission until it was even with the reference marker. The marker-delta reading at this point was the 20dB bandwidth
of the emission.
„
Test Result
Test Mode
Mode 2
Mode 4
Frequency
(MHz)
Measurement Results
(MHz)
2402
0.943
2441
0.961
2480
0.928
2402
1.287
2441
1.262
2480
1.271
46 of 67
Report Number: 1702FR12
„
Test Graphs
Mode 2: GFSK Link Mode
2402 MHz
2441 MHz
2480 MHz
47 of 67
Report Number: 1702FR12
Mode 4: 8DPSK Link Mode
2402 MHz
2441 MHz
2480 MHz
48 of 67
Report Number: 1702FR12
Carrier Frequency Separation Measurement
„
Limit
Title 47 of the CFR, Part 15 Subpart (c) 15.247(a)(1) requires the measurement of the bandwidth of the
transmission between the -20 dB points on the transmitted spectrum. The results of this test determine the limits for
channel spacing. The channel spacing shall be a minimum of 25 kHz or the 20 dB bandwidth, 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.
„
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-SM-1
500
140303
02/23/2016
1 year
Test Site
ATL
TE05
TE05
N.C.R.
-----
NOTE: N.C.R. = No Calibration Request.
49 of 67
Report Number: 1702FR12
„
Test Procedure
Testing must be done according to this procedure, FCC Public Notice DA 00-705 - Filing and Measurement
Guidelines for Frequency Hopping Spread Spectrum Systems. This is the only method recognized by the FCC. The
RF output port of the Equipment-Under-Test is directly coupled to the input of the EMC analyzer through a
specialized RF connector and a 10dB passive attenuator. A fully charged battery was used for the supply voltage.
The Bluetooth frequency hopping function of the EUT was enabled. The following spectrum analyzer settings were
used:
1. Span = wide enough to capture the peaks of two adjacent channels
2. Resolution (or IF) Bandwidth (RBW)
≥
3. Video (or Average) Bandwidth (VBW)
1% of the span
≥
RBW
4. Sweep = auto
5. Detector function = peak
6. Trace = max hold
The trace was allowed to stabilize. The marker-delta function was used to determine the separation between the
peaks of the adjacent channels.
„
Test Result
Test Mode
Mode 2
Mode 4
Frequency
(MHz)
Measurement Results
(MHz)
Limit
(MHz)
2402
1.000
> 0.628
2441
1.000
> 0.640
2480
1.000
> 0.619
2402
1.000
> 0.858
2441
1.000
> 0.841
2480
1.000
> 0.847
50 of 67
Report Number: 1702FR12
„
Test Graphs
Mode 2: GFSK Link Mode
2402
2440
2480
51 of 67
Report Number: 1702FR12
Mode 4: 8DPSK Link Mode
2402
2441
2480
52 of 67
Report Number: 1702FR12
Number of Hopping Measurement
„
Limit
Frequency hopping systems in the 2400–2483.5 MHz band shall use at least 15 channels.
„
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-SM-1500
140303
02/23/2016
1 year
Test Site
ATL
TE05
TE05
N.C.R.
-----
NOTE: N.C.R. = No Calibration Request.
„
Test Procedure
Testing must be done according to this procedure, FCC Public Notice DA 00-705 - Filing and Measurement
Guidelines for Frequency Hopping Spread Spectrum Systems. This is the only method recognized by the FCC. The
RF output port of the Equipment-Under-Test is directly coupled to the input of the EMC analyzer through a
specialized RF connector and a 10dB passive attenuator. A fully charged battery was used for the supply voltage.
The Bluetooth frequency hopping function of the EUT was enabled. The spectrum analyzer used the following
settings:
1. Span = the frequency band of operation
2. RBW
≥
1% of the span
3. VBW
≥
RBW
4. Sweep = auto
5. Detector function = peak
6. Trace = max hold
The trace was allowed to stabilize.
53 of 67
Report Number: 1702FR12
„
Test Result
Test Mode
Frequency Range
(MHz)
Measurement Results
(Ch)
Limit
(ch)
Mode 2
2402 - 2480
79
> 15
Mode 4
2402 - 2480
79
> 15
54 of 67
Report Number: 1702FR12
„
Test Graphs
Mode 2: GFSK Link Mode
CH0~CH39
CH40~CH78
55 of 67
Report Number: 1702FR12
Mode 4: 8DPSK Link Mode
CH0~CH39
CH40~CH78
56 of 67
Report Number: 1702FR12
10
Time of Occupancy (Dwell Time) Measurement
„
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
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-SM-1500
140303
02/23/2016
1 year
Test Site
ATL
TE05
TE05
N.C.R.
-----
NOTE: N.C.R. = No Calibration Request.
„
Test Procedure
Testing must be done according to this procedure, FCC Public Notice DA 00-705 - Filing and Measurement
Guidelines for Frequency Hopping Spread Spectrum Systems. This is the only method recognized by the FCC. The
RF output port of the Equipment-Under-Test is directly coupled to the input of the spectrum through a specialized
RF connector and a 10dB passive attenuator. A fully charged battery was used for the supply voltage. The Bluetooth
hopping function of the EUT was enabled. The following spectrum analyzer settings were used:
1. Span = zero span, centered on a hopping channel
2. RBW = 1 MHz
3. VBW
≥
RBW
4. Sweep = as necessary to capture the entire dwell time per hopping channel
5. Detector function = peak
6. Trace = max hold
The marker-delta function was used to determine the dwell time.
57 of 67
Report Number: 1702FR12
„
Test Result
Mode 2: GFSK Link Mode
DH1
Cycle Calculate
79CH * 0.4 = 31.6 (sec)
The EUT Hopping Number per Sec
1600 times/sec
Each Channel Dwell Times per Sec
800/79CH = 10.13(times/sec)
Each Channel Dwell Times on Cycle(1)
31.6 * 10.13 = 320.108(times)
Each Channel Dwell Times (2)
0.475
ms (sec)
Dwell Times on Cycle (1) * (2)
152.051
ms (sec)
LIMIT(msec)
< = 400
DH3
Cycle Calculate
79CH * 0.4 = 31.6 (sec)
The EUT Hopping Number per Sec
1600 times/sec
Each Channel Dwell Times per Sec
400/79CH = 5.1(times/sec)
Each Channel Dwell Times on Cycle(1)
31.6 * 5.1 = 161.16(times)
Each Channel Dwell Times (2)
1.725
ms (sec)
Dwell Times on Cycle (1) * (2)
275.821
ms (sec)
LIMIT(msec)
< = 400
DH5
Cycle Calculate
79CH * 0.4 = 31.6 (sec)
The EUT Hopping Number per Sec
1600 times/sec
Each Channel Dwell Times per Sec
266.7/79CH = 3.37(times/sec)
Each Channel Dwell Times on Cycle(1)
31.6 * 3.37 = 106.492(times)
Each Channel Dwell Times (2)
3.000
ms (sec)
Dwell Times on Cycle (1) * (2)
320.424
ms (sec)
LIMIT(msec)
< = 400
58 of 67
Report Number: 1702FR12
Mode 4: 8DPSK Link Mode
3DH1
Cycle Calculate
79CH * 0.4 = 31.6 (sec)
The EUT Hopping Number per Sec
1600 times/sec
Each Channel Dwell Times per Sec
800/79CH = 10.13(times/sec)
Each Channel Dwell Times on Cycle(1)
31.6 * 10.13 = 320.108(times)
Each Channel Dwell Times (2)
0.475
ms (sec)
Dwell Times on Cycle (1) * (2)
152.051
ms (sec)
LIMIT(msec)
< = 400
3DH3
Cycle Calculate
79CH * 0.4 = 31.6 (sec)
The EUT Hopping Number per Sec
1600 times/sec
Each Channel Dwell Times per Sec
400/79CH = 5.1(times/sec)
Each Channel Dwell Times on Cycle(1)
31.6 * 5.1 = 161.16(times)
Each Channel Dwell Times (2)
1.725
ms (sec)
Dwell Times on Cycle (1) * (2)
275.821
ms (sec)
LIMIT(msec)
< = 400
3DH5
Cycle Calculate
79CH * 0.4 = 31.6 (sec)
The EUT Hopping Number per Sec
1600 times/sec
Each Channel Dwell Times per Sec
266.7/79CH = 3.37(times/sec)
Each Channel Dwell Times on Cycle(1)
31.6 * 3.37 = 106.492(times)
Each Channel Dwell Times (2)
3.000
ms (sec)
Dwell Times on Cycle (1) * (2)
320.424
ms (sec)
LIMIT(msec)
< = 400
59 of 67
Report Number: 1702FR12
„
Test Graphs
Mode 2: GFSK Link Mode
DH1
DH3
DH5
60 of 67
Report Number: 1702FR12
Mode 4: 8DPSK Link Mode
3DH1
3DH3
3DH5
61 of 67
Report Number: 1702FR12
11
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-SM-1500
140303
02/23/2016
1 year
Test Site
ATL
TE05
TE05
N.C.R.
-----
NOTE: N.C.R. = No Calibration Request.
„
Test Procedure
Testing must be done according to this procedure, FCC Public Notice DA 00-705 - Filing and Measurement
Guidelines for Frequency Hopping Spread Spectrum Systems. This is the only method recognized by the FCC. 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 (Channel 0, 39, 78)
62 of 67
Report Number: 1702FR12
„
Test Graphs
Mode 2: GFSK Link Mode
2402 MHz
2441 MHz
2480 MHz
63 of 67
Report Number: 1702FR12
Mode 2: GFSK Link Mode _ Un-hopping
2402 MHz
2480 MHz
Mode 2: GFSK Link Mode _ Hopping
2402 ~ 2480 MHz
64 of 67
Report Number: 1702FR12
Mode 4: 8DPSK Link Mode
2402 MHz
2441 MHz
2480 MHz
65 of 67
Report Number: 1702FR12
Mode 4: 8DPSK Link Mode _ Un-hopping
2402 MHz
2480 MHz
Mode 4: 8DPSK Link Mode _ Hopping
2402 ~ 2480 MHz
66 of 67
Report Number: 1702FR12
12
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)(4), 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.
67 of 67
Download: 00000NU317 IQbuds Test Report 1702FR12_Part 15.247 BT _17-0082_ Nuheara Limited
Mirror Download [FCC.gov]00000NU317 IQbuds Test Report 1702FR12_Part 15.247 BT _17-0082_ Nuheara Limited
Document ID3301467
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Document DescriptionRF Test Report
Short Term ConfidentialNo
Permanent ConfidentialNo
SupercedeNo
Document TypeTest Report
Display FormatAdobe Acrobat PDF - pdf
Filesize60.79kB (759909 bits)
Date Submitted2017-03-02 00:00:00
Date Available2017-03-02 00:00:00
Creation Date2017-02-14 17:23:11
Producing SoftwareAcrobat Distiller 8.1.0 (Windows)
Document Lastmod2017-02-24 15:31:18
Document Title1702FR12_Part 15.247 BT _17-0082_
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Document Author: snow

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