4819 Floating Waterproof Speaker Test Report ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT SHENZHEN FENDA TECHNOLOGY CO., LTD.

SHENZHEN FENDA TECHNOLOGY CO., LTD. Floating Waterproof Speaker

FCC ID Filing: HBO4819
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RADIO TEST REPORT
FCC ID: HBO4819
Product: Floating Waterproof Speaker
Trade Mark: tzumi
Model No.: 4819
Serial Model: N/A
Report No.: NTEK-2017DC0520003F
Issue Date: 02 Jun. 2017
Prepared for
SHENZHEN FENDA TECHNOLOGY CO., LTD.
Fenda Hi-Tech Park, Zhoushi Road, Shiyan Town, Baoan District, Shenzhen City,
Guangdong,China
Prepared by
Shenzhen NTEK Testing Technology Co., Ltd.
1/F, Building E, Fenda Science Park, Sanwei Community,
Xixiang Street Bao’an District, Shenzhen 518126 P.R. China
Tel.: +86-755-6115 9388
Fax.: +86-755-6115 6599
Website:http://www.ntek.org.cn
Page 2 of 53
Report No.: NTEK-2017DC0520003F
TABLE OF CONTENTS
TEST RESULT CERTIFICATION ...................................................................................................................... 3
SUMMARY OF TEST RESULTS ......................................................................................................................... 4
FACILITIES AND ACCREDITATIONS ............................................................................................................. 5
3.1
3.2
3.3
FACILITIES..................................................................................................................................................... 5
LABORATORY ACCREDITATIONS AND LISTINGS ................................................................................. 5
MEASUREMENT UNCERTAINTY ............................................................................................................... 5
GENERAL DESCRIPTION OF EUT .................................................................................................................. 6
DESCRIPTION OF TEST MODES ..................................................................................................................... 8
SETUP OF EQUIPMENT UNDER TEST ........................................................................................................... 9
6.1
6.2
6.3
BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM ....................................................................... 9
SUPPORT EQUIPMENT............................................................................................................................... 10
EQUIPMENTS LIST FOR ALL TEST ITEMS.............................................................................................. 11
TEST REQUIREMENTS .................................................................................................................................... 13
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
CONDUCTED EMISSIONS TEST ............................................................................................................... 13
RADIATED SPURIOUS EMISSION ............................................................................................................ 18
NUMBER OF HOPPING CHANNEL ........................................................................................................... 27
HOPPING CHANNEL SEPARATION MEASUREMENT ........................................................................... 29
AVERAGE TIME OF OCCUPANCY (DWELL TIME) ................................................................................ 33
20DB BANDWIDTH TEST .......................................................................................................................... 37
PEAK OUTPUT POWER .............................................................................................................................. 41
CONDUCTED BAND EDGE MEASUREMENT......................................................................................... 45
SPURIOUS RF CONDUCTED EMISSION .................................................................................................. 49
ANTENNA APPLICATION .......................................................................................................................... 53
N2016.11.05.1105.V.1.0
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Report No.: NTEK-2017DC0520003F
TEST RESULT CERTIFICATION
Applicant’s name ......................... : SHENZHEN FENDA TECHNOLOGY CO., LTD.
Address ....................................... : Fenda Hi-Tech Park, Zhoushi Road, Shiyan Town, Baoan District,
Shenzhen City, Guangdong, China
Manufacturer's Name .................. : SHENZHEN FENDA ELECTROACOUSTICAL CO.,LTD.
Address ....................................... : Fenda Hi-Tech Park, Zhoushi Road, Shiyan Town, Baoan District,
Shenzhen City, Guangdong, China
Product description
Product name .............................. : Floating Waterproof Speaker
Model and/or type reference ..... : 4819
Serial Model ................................ : N/A
Measurement Procedure Used:
APPLICABLE STANDARDS
STANDARD/ TEST PROCEDURE
TEST RESULT
FCC 47 CFR Part 2, Subpart J:2016
FCC 47 CFR Part 15, Subpart C:2016
KDB 174176 D01 Line Conducted FAQ v01r01
ANSI C63.10-2013
Complied
This device described above has been tested by Shenzhen NTEK Testing Technology Co., Ltd., and the test
results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is
applicable only to the tested sample identified in the report.
This report shall not be reproduced except in full, without the written approval of Shenzhen NTEK Testing
Technology Co., Ltd., this document may be altered or revised by Shenzhen NTEK Testing Technology Co.,
Ltd., personnel only, and shall be noted in the revision of the document.
The test results of this report relate only to the tested sample identified in this report.
Date of Test
Testing Engineer
20 May. 2017 ~ 02Jun. 2017
(Allen Liu)
Technical Manager
(Jason Chen)
Authorized Signatory
(Sam Chen)
N2016.11.05.1105.V.1.0
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Report No.: NTEK-2017DC0520003F
SUMMARY OF TEST RESULTS
FCC Part15 (15.247), Subpart C
Standard Section
Test Item
Verdict
15.207
Conducted Emission
PASS
15.247(c)
Radiated Spurious Emission
PASS
15.247(a)(1)
Hopping Channel Separation
PASS
15.247(b)(1)
Peak Output Power
PASS
15.247(a)(iii)
Number of Hopping Frequency
PASS
15.247(a)(iii)
Dwell Time
PASS
15.247(a)(1)
Bandwidth
PASS
15.205
Band Edge Emission
PASS
15.203
Antenna Requirement
PASS
Remark
Remark:
1. “N/A” denotes test is not applicable in this Test Report.
2. All test items were verified and recorded according to the standards and without any deviation during
the test.
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Report No.: NTEK-2017DC0520003F
FACILITIES AND ACCREDITATIONS
3.1 FACILITIES
All measurement facilities used to collect the measurement data are located at
1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street Bao’an District, Shenzhen
518126 P.R. China
The sites are constructed in conformance with the requirements of ANSI C63.7, ANSI C63.10 and CISPR
Publication 22.
3.2 LABORATORY ACCREDITATIONS AND LISTINGS
Site Description
EMC Lab.
: Accredited by CNAS, 2014.09.04
The Laboratory has been assessed and proved to be in compliance with
CNAS-CL01:2006 (identical to ISO/IEC 17025:2005)
The Certificate Registration Number is L5516.
Accredited by FCC, September 6, 2013
The Certificate Registration Number is 238937.
Accredited by Industry Canada, August 29, 2012
The Certificate Registration Number is 9270A-1.
Name of Firm
Site Location
: Shenzhen NTEK Testing Technology Co., Ltd
: 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang
Street, Bao’an District, Shenzhen 518126 P.R. China.
3.3 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
Uncertainty
Conducted Emission Test
±1.38dB
RF power, conducted
±0.16dB
Spurious emissions, conducted
±0.21dB
All emissions, radiated(<1G)
±4.68dB
All emissions, radiated(>1G)
±4.89dB
Temperature
±0.5°C
Humidity
±2%
N2016.11.05.1105.V.1.0
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Report No.: NTEK-2017DC0520003F
GENERAL DESCRIPTION OF EUT
Product Feature and Specification
Equipment
Floating Waterproof Speaker
Trade Mark
tzumi
FCC ID
HBO4819
Model No.
4819
Serial Model
N/A
Model Difference
All the model are the same circuit and RF module,
except the appearance and colour.
Operating Frequency
2402MHz~2480MHz
Modulation
GFSK,π/4-DQPSK, 8DPSK
Bluetooth Version
BT V4.2
Number of Channels
79 Channels
Antenna Type
PCB Antenna
Antenna Gain
1 dBi
Rating(s)
DC 3.7V
DC supply:
DC 3.7V, 1200mAh
Power supply
Adapter supply:
N/A
HW Version
KB860_V1.0
SW Version
SKB860_V1.0
Note: Based on the application, features, or specification exhibited in User's Manual, the EUT is considered
as an ITE/Computing Device. More details of EUT technical specification, please refer to the User's Manual.
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Report No.: NTEK-2017DC0520003F
Revision History
Report No.
Version
Description
Issued Date
NTEK-2017DC0520003F
Rev.01
Initial issue of report
Jun 02, 2017
N2016.11.05.1105.V.1.0
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Report No.: NTEK-2017DC0520003F
DESCRIPTION OF TEST MODES
To investigate the maximum EMI emission characteristics generates from EUT, the test system was
pre-scanning tested base on the consideration of following EUT operation mode or test configuration mode
which possible have effect on EMI emission level. Each of these EUT operation mode(s) or test configuration
mode(s) mentioned above was evaluated respectively.
The Transmitter was operated in the normal operating mode. The TX frequency was fixed which was for the
purpose of the measurements.
Test of channel included the lowest and middle and highest frequency to perform the test, then record on this
report.
Those data rates (1Mbps for GFSK modulation; 2Mbps for π/4-DQPSK modulation; 3Mbps for 8DPSK
modulation) were used for all test.
The EUT was pretested with 3 orientations placed on the table for the radiated emission measurement –X, Y,
and Z-plane. The X-plane results were found as the worst case and were shown in this report.
Carrier Frequency and Channel list:
Channel
Frequency(MHz)
2402
2403
…
…
39
2441
40
2442
…
…
77
2479
78
2480
Note: fc=2402MHz+k×1MHz k=0 to 78
The following summary table is showing all test modes to demonstrate in compliance with the standard.
For AC Conducted Emission
Final Test Mode
Description
Mode 1
normal link mode
Note: AC power line Conducted Emission was tested under maximum output power.
For Radiated Test Cases
Final Test Mode
Description
Mode 1
normal link mode
Mode 2
CH00(2402MHz)
Mode 3
CH39(2441MHz)
Mode 4
CH78(2480MHz)
Note: For radiated test cases, the worst mode data rate 3Mbps was reported only, because this data rate
has the highest RF output power at preliminary tests, and no other significantly frequencies found in
conducted spurious emission.
For Conducted Test Cases
Final Test Mode
Description
Mode 2
CH00(2402MHz)
Mode 3
CH39(2441MHz)
Mode 4
CH78(2480MHz)
Mode 5
Hopping mode
Note: The engineering test program was provided and the EUT was programmed to be in continuously
transmitting mode.
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Report No.: NTEK-2017DC0520003F
SETUP OF EQUIPMENT UNDER TEST
6.1 BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM
For AC Conducted Emission Mode
AC PLUG
E-1
C-1
EUT
E-2
Notebook
For Radiated Test Cases
E-1
EUT
For Conducted Test Cases
C2
Measurement
Instrument
E-1
EUT
Note:The temporary antenna connector is soldered on the PCB board in order to perform conducted tests and
this temporary antenna connector is listed in the equipment list.
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Report No.: NTEK-2017DC0520003F
6.2 SUPPORT EQUIPMENT
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.
Item
Equipment
Mfr/Brand
Model/Type No.
FCC ID
Note
Floating Waterproof
E-1
tzumi
4819
HBO4819
EUT
Speaker
E-2
Notebook
Lenovo
Thinkpad Edge E430
N/A
N/A
Item
Cable Type
Shielded Type
Ferrite Core
Length
C-1
USB Cable
NO
NO
1.2m
C-2
RF Cable
NO
NO
0.5m
Notes:
(1)
(2)
(3)
The support equipment was authorized by Declaration of Confirmation.
For detachable type I/O cable should be specified the length in cm in『Length』column.
“YES” is means “shielded” “with core”; “NO” is means “unshielded” “without core”.
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Report No.: NTEK-2017DC0520003F
6.3 EQUIPMENTS LIST FOR ALL TEST ITEMS
Radiation Test equipment
Kind of
Item
Manufacturer
Equipment
Spectrum
Agilent
Analyzer
Spectrum
Agilent
Analyzer
Last
calibration
Calibrated
until
Calibration
period
E4407B
MY45108040 2016.07.06
2017.07.05
1 year
N9020A
MY49100060
2016.11.19
2017.11.18
1 year
Type No.
Serial No.
Test Receiver
R&S
ESPI
101318
2017.06.07
2018.06.06
1 year
Bilog Antenna
TESEQ
CBL6111D
31216
2016.07.06
2017.07.05
1 year
50Ω Coaxial
Switch
Anritsu
MP59B
6200264416
2017.06.07
2018.06.06
1 year
Horn Antenna
EM
EM-AH-1018
2011071402
2016.07.06
2017.07.05
1 year
Horn Ant
9170-181
2016.07.06
2017.07.05
1 year
Pre-Amplifier
EMC
EMC051835
SE
980246
2016.08.09
2017.08.09
1 year
10
Loop Antenna
ARA
PLA-1030/B
1029
2017.06.08
2018.06.07
1 year
N/A
R-04
N/A
2017.06.06
2018.06.05
1 year
N/A
R-01
N/A
2016.07.06
2017.07.05
1 year
N/A
R-02
N/A
2016.07.06
2017.07.05
1 year
N/A
R-03
N/A
2017.06.06
2018.06.05
1 year
NTS
R001
N/A
N/A
N/A
N/A
11
12
13
14
15
Test Cable
(9KHz-30MHz)
Test Cable
(30MHz-1GHz)
Test Cable
(1-18GHz)
High Test
Cable(18G-40
GHz)
temporary
antenna
connector
Schwarzbeck BBHA 9170
(Note)
Note:
We will use the temporary antenna connector (soldered on the PCB board) When conducted test
And this temporary antenna connector is listed within the instrument list
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Conduction Test equipment
Kind of
Item
Manufacturer
Equipment
Report No.: NTEK-2017DC0520003F
Type No.
Serial No.
Last
calibration
Calibrated
until
Calibration
period
Test Receiver
R&S
ESCI
101160
2017.06.06
2018.06.05
1 year
LISN
R&S
ENV216
101313
2016.08.24
2017.08.23
1 year
LISN
EMCO
3816/2
00042990
2016.08.24
2017.08.23
1 year
Anritsu
MP59B
6200264417
2017.06.07
2018.06.06
1 year
N/A
C01
N/A
2017.06.08
2018.06.07
1 year
N/A
C02
N/A
2017.06.08
2018.06.07
1 year
N/A
C03
N/A
2017.06.08
2018.06.07
1 year
50Ω Coaxial
Switch
Test Cable
(9KHz-30MH
z)
Test Cable
(9KHz-30MH
z)
Test Cable
(9KHz-30MH
z)
Note: Each piece of equipment is scheduled for calibration once a year.
N2016.11.05.1105.V.1.0
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Report No.: NTEK-2017DC0520003F
TEST REQUIREMENTS
7.1 CONDUCTED EMISSIONS TEST
7.1.1
Applicable Standard
According to FCC Part 15.207(a) and KDB 174176 D01 Line Conducted FAQ v01r01
7.1.2
Conformance Limit
Conducted Emission Limit
Quasi-peak
Average
0.15-0.5
66-56*
56-46*
0.5-5.0
56
46
5.0-30.0
60
50
Note: 1. *Decreases with the logarithm of the frequency
2. The lower limit shall apply at the transition frequencies
3. The limit decreases in line with the logarithm of the frequency in the range of 0.15 to 0.50MHz.
Frequency(MHz)
7.1.3
Test Configuration
Reference
Ground
EMI Receiver
EUT
Auxiliary
Equipment
80cm
Reference
Ground
50Ω
80cm
LISN
7.1.4
LISN
Test Procedure
According to the requirements in Section 13.1.4.1 of ANSI C63.10-2013 Conducted emissions the EUT
measured in the frequency range between 0.15 MHz and 30 MHz using CISPR Quasi-Peak and average
detector mode.
1. The EUT was placed 0.4 meter from the conducting wall of the shielding room.
2. The EUT was placed on a table which is 0.8m above ground plane.
3. Connect EUT to the power mains through a line impedance stabilization network (LISN). All other
support equipments powered from additional LISN(s). The LISN provide 50 Ohm/ 50uH of coupling
impedance for the measuring instrument.
4. Interconnecting cables that hang closer than 40 cm to the ground plane shall be folded back and forth in
the center forming a bundle 30 to 40cm long.
5. I/O cables that are not connected to a peripheral shall be bundled in the center. The end of the cable
may be terminated, if required, using the correct terminating impedance. The overall length shall not
exceed 1 m.
6. LISN at least 80 cm from nearest part of EUT chassis.
7. The frequency range from 150KHz to 30MHz was searched.
8. Set the test-receiver system to Peak Detect Function and specified bandwidth(IF bandwidth=9KHz) with
Maximum Hold Mode
9. For the actual test configuration, please refer to the related Item –EUT Test Photos.
7.1.5
Test Results
Pass
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7.1.6
Report No.: NTEK-2017DC0520003F
Test Results
Model Name :
Floating Waterproof Speaker
Temperature:26 ℃
1010hPa
Pressure:
DC 5V from Notebook AC
Test Voltage :
120V/60Hz
4819
Relative Humidity:54%
Phase :
EUT:
Frequency
Reading Level Correct Factor
Test Mode:
Measure-ment
Mode 1
Limits
Margin
Remark
(MHz)
(dBμV)
(dB)
(dBμV)
(dBμV)
(dB)
0.15
41.21
9.7
50.91
65.99
-15.08
QP
0.15
19.62
9.7
29.32
55.99
-26.67
AVG
0.198
35.97
9.7
45.67
63.69
-18.02
QP
0.198
19.65
9.7
29.35
53.69
-24.34
AVG
0.486
32.74
9.71
42.45
56.24
-13.79
QP
0.486
28.57
9.71
38.28
46.24
-7.96
AVG
1.042
27.32
9.82
37.14
56
-18.86
QP
1.042
19.36
9.82
29.18
46
-16.82
AVG
3.106
26.26
9.95
36.21
56
-19.79
QP
3.106
17.17
9.95
27.12
46
-18.88
AVG
13.562
32
10.08
42.08
60
-17.92
QP
13.562
18.23
10.08
28.31
50
-21.69
AVG
Remark:
1. All readings are Quasi-Peak and Average values.
2. Factor = Insertion Loss + Cable Loss.
N2016.11.05.1105.V.1.0
Page 15 of 53
EUT:
Temperature:
Pressure:
Test Voltage :
Frequency
Floating Waterproof Speaker
26 ℃
1010hPa
DC 5V from Notebook AC
120V/60Hz
Reading Level Correct Factor
Measure-ment
Report No.: NTEK-2017DC0520003F
Model Name :
Relative Humidity:
Phase :
4819
Test Mode:
Mode 1
54%
Limits
Margin
Remark
(MHz)
(dBμV)
(dB)
(dBμV)
(dBμV)
(dB)
0.15
42.46
9.8
52.26
65.99
-13.73
QP
0.15
19.34
9.8
29.14
55.99
-26.85
AVG
0.486
32.02
9.81
41.83
56.24
-14.41
QP
0.486
28.2
9.81
38.01
46.24
-8.23
AVG
0.61
25.06
9.81
34.87
56
-21.13
QP
0.61
15.55
9.81
25.36
46
-20.64
AVG
1.53
25.35
9.83
35.18
56
-20.82
QP
1.53
16.19
9.83
26.02
46
-19.98
AVG
3.606
25.54
9.86
35.4
56
-20.6
QP
3.606
16.28
9.86
26.14
46
-19.86
AVG
13.614
30.68
10.13
40.81
60
-19.19
QP
13.614
17.09
10.13
27.22
50
-22.78
AVG
Remark:
1. All readings are Quasi-Peak and Average values.
2. Factor = Insertion Loss + Cable Loss.
N2016.11.05.1105.V.1.0
Page 16 of 53
Model Name :
Floating Waterproof Speaker
Temperature: 26 ℃
1010hPa
Pressure:
DC 5V from Notebook AC
Test Voltage :
240V/60Hz
4819
Relative Humidity:54%
Phase :
EUT:
Frequency
Reading Level Correct Factor
Report No.: NTEK-2017DC0520003F
Test Mode:
Measure-ment
Mode 1
Limits
Margin
Remark
(MHz)
(dBμV)
(dB)
(dBμV)
(dBμV)
(dB)
0.478
33.87
9.71
43.58
56.37
-12.79
QP
0.478
26.65
9.71
36.36
46.37
-10.01
AVG
0.5299
31.31
9.71
41.02
56
-14.98
QP
0.5299
29.04
9.71
38.75
46
-7.25
AVG
1.054
29.63
9.81
39.44
56
-16.56
QP
1.054
27.45
9.81
37.26
46
-8.74
AVG
2.862
29.98
9.92
39.9
56
-16.1
QP
2.862
20.1
9.92
30.02
46
-15.98
AVG
3.262
30.24
9.95
40.19
56
-15.81
QP
3.262
22.37
9.95
32.32
46
-13.68
AVG
18.1818
33.16
10.17
43.33
60
-16.67
QP
18.1818
20.41
10.17
30.58
50
-19.42
AVG
Remark:
1. All readings are Quasi-Peak and Average values.
2. Factor = Insertion Loss + Cable Loss.
N2016.11.05.1105.V.1.0
Page 17 of 53
EUT:
Temperature:
Pressure:
Test Voltage :
Frequency
Floating Waterproof Speaker
26 ℃
1010hPa
DC 5V from Notebook AC 240V/60Hz
Reading Level Correct Factor
Measure-ment
Report No.: NTEK-2017DC0520003F
4819
Model Name :
Relative Humidity:54%
Phase :
Mode 1
Test Mode:
Limits
Margin
Remark
(MHz)
(dBμV)
(dB)
(dBμV)
(dBμV)
(dB)
0.478
34.67
9.81
44.48
56.37
-11.89
QP
0.478
28.44
9.81
38.25
46.37
-8.12
AVG
0.526
30.97
9.81
40.78
56
-15.22
QP
0.526
28.9
9.81
38.71
46
-7.29
AVG
0.69
27.65
9.81
37.46
56
-18.54
QP
0.69
15.55
9.81
25.36
46
-20.64
AVG
1.478
28.82
9.82
38.64
56
-17.36
QP
1.478
21.94
9.82
31.76
46
-14.24
AVG
3.686
27.16
9.86
37.02
56
-18.98
QP
3.686
24.46
9.86
34.32
46
-11.68
AVG
17.726
30.93
10.18
41.11
60
-18.89
QP
17.726
16
10.18
26.18
50
-23.82
AVG
Remark:
1. All readings are Quasi-Peak and Average values.
2. Factor = Insertion Loss + Cable Loss.
N2016.11.05.1105.V.1.0
Page 18 of 53
Report No.: NTEK-2017DC0520003F
7.2 RADIATED SPURIOUS EMISSION
7.2.1
Applicable Standard
According to FCC Part 15.247(d) and 15.209 and ANSI C63.10-2013
7.2.2
Conformance Limit
According to FCC Part 15.247(d): radiated emissions which fall in the restricted bands, as defined in
§15.205(a), must also comply with the radiated emission limits specified in §15.209(a) (see §15.205(c)).
According to FCC Part15.205, Restricted bands
MHz
MHz
MHz
GHz
0.090-0.110
16.42-16.423
399.9-410
4.5-5.15
10.495-0.505
16.69475-16.69525
608-614
5.35-5.46
2.1735-2.1905
16.80425-16.80475
960-1240
7.25-7.75
4.125-4.128
25.5-25.67
1300-1427
8.025-8.5
4.17725-4.17775
37.5-38.25
1435-1626.5
9.0-9.2
4.20725-4.20775
73-74.6
1645.5-1646.5
9.3-9.5
6.215-6.218
74.8-75.2
1660-1710
10.6-12.7
6.26775-6.26825
123-138
2200-2300
14.47-14.5
8.291-8.294
149.9-150.05
2310-2390
15.35-16.2
8.362-8.366
156.52475-156.52525
2483.5-2500
17.7-21.4
8.37625-8.38675
156.7-156.9
2690-2900
22.01-23.12
8.41425-8.41475
162.0125-167.17
3260-3267
23.6-24.0
12.29-12.293
167.72-173.2
3332-3339
31.2-31.8
12.51975-12.52025
240-285
3345.8-3358
36.43-36.5
12.57675-12.57725
322-335.4
3600-4400
(2)
13.36-13.41
20dBc in any 100 kHz bandwidth outside the operating frequency band. In case the emission fall within the
restricted band specified on 15.205(a), then the 15.209(a) limit in the table below has to be followed.
Restricted
Field Strength (μV/m)
Field Strength (dBμV/m) Measurement Distance
Frequency(MHz)
0.009~0.490
2400/F(KHz)
20 log (uV/m)
300
0.490~1.705
2400/F(KHz)
20 log (uV/m)
30
1.705~30.0
30
29.5
30
30-88
100
40
88-216
150
43.5
216-960
200
46
Above 960
500
54
Limits of Radiated Emission Measurement(Above 1000MHz)
Class B (dBuV/m) (at 3M)
Frequency(MHz)
Above 1000
PEAK
AVERAGE
74
54
Remark :1. Emission level in dBuV/m=20 log (uV/m)
2. Measurement was performed at an antenna to the closed point of EUT distance of meters.
3. Distance extrapolation factor =40log(Specific distance/ test distance)( dB);
Limit line=Specific limits(dBuV) + distance extrapolation factor.
N2016.11.05.1105.V.1.0
Page 19 of 53
7.2.3
Report No.: NTEK-2017DC0520003F
Measuring Instruments
The Measuring equipment is listed in the section 6.3 of this test report.
7.2.4
Test Configuration
(a) For radiated emissions below 30MHz
Turntable
3m
EUT
0.8 m
Test
Receiver
1.0m
Ground Plane
Coaxial Cable
(b) For radiated emissions from 30MHz to 1000MHz
3m
Turntable
1m to 4m
EUT
Test
Receiver
0.8m
Ground Plane
Coaxial Cable
(c) For radiated emissions above 1000MHz
3m
4m
Turntable
EUT
1.5m
1.5m
Amplifie
Test Receiver
N2016.11.05.1105.V.1.0
Page 20 of 53
7.2.5
Report No.: NTEK-2017DC0520003F
Test Procedure
The test site semi-anechoic chamber has met the requirement of NSA tolerance 4 dB according to the
standards: ANSI C63.10-2013. The test distance is 3m.The setup is according to the requirements in Section
13.1.4.1 of ANSI C63.10-2013 and CAN/CSA-CEI/IEC CISPR 22.
This test is required for any spurious emission that falls in a Restricted Band, as defined in Section 15.205.
It must be performed with the highest gain of each type of antenna proposed for use with the EUT.
Use the following spectrum analyzer settings:
Spectrum Parameter
Setting
Attenuation
Auto
Start Frequency
1000 MHz
Stop Frequency
10th carrier harmonic
RB / VB (emission in restricted band)
1 MHz / 1 MHz for Peak, 1 MHz / 10Hz for Average
Receiver Parameter
Attenuation
Start ~ Stop Frequency
Start ~ Stop Frequency
Start ~ Stop Frequency
Setting
Auto
9kHz~150kHz / RB 200Hz for QP
150kHz~30MHz / RB 9kHz for QP
30MHz~1000MHz / RB 120kHz for QP
a. The measuring distance of at 3 m shall be used for measurements at frequency up to 1GHz. For
frequencies above 1GHz, any suitable measuring distance may be used.
b. The EUT was placed on the top of a rotating table 0.8 m for below 1GHz and 1.5m for above 1GHz the
ground at a 3 meter. The table was rotated 360 degrees to determine the position of the highest
radiation.
c. The height of the equipment or of the substitution antenna shall be 0.8 m for below 1GHz and 1.5m for
above 1GHz; the height of the test antenna shall vary between 1 m to 4 m. Both horizontal and vertical
polarizations of the antenna are set to make the measurement.
d. For the radiated emission test above 1GHz:
Place the measurement antenna away from each area of the EUT determined to be a source of
emissions at the specified measurement distance, while keeping the measurement antenna aimed at
the source of emissions at each frequency of significant emissions, with polarization oriented for
maximum response. The measurement antenna may have to be higher or lower than the EUT,
depending on the radiation pattern of the emission and staying aimed at the emission source for
receiving the maximum signal. The final measurement antenna elevation shall be that which maximizes
the emissions. The measurement antenna elevation for maximum emissions shall be restricted to a
range of heights of from 1 m to 4 m above the ground or reference ground plane.
e. The initial step in collecting conducted emission data is a spectrum analyzer peak detector mode
pre-scanning the measurement frequency range. Significant peaks are then marked and then Quasi
Peak detector mode re-measured.
f. If the Peak Mode measured value compliance with and lower than Quasi Peak Mode Limit, the EUT
shall be deemed to meet QP Limits and then no additional QP Mode measurement performed.
g. For the actual test configuration, please refer to the related Item –EUT Test Photos.
Note:
Both horizontal and vertical antenna polarities were tested
and performed pretest to three orthogonal axis. The worst case emissions were reported
N2016.11.05.1105.V.1.0
Page 21 of 53
Report No.: NTEK-2017DC0520003F
During the radiated emission test, the Spectrum Analyzer was set with the following configurations:
Frequency Band (MHz)
Function
Resolution bandwidth
Video Bandwidth
30 to 1000
QP
120 kHz
300 kHz
Peak
1 MHz
1 MHz
Average
1 MHz
10 Hz
Above 1000
Note: for the frequency ranges below 30 MHz, a narrower RBW is used for these ranges but the measured
value should add a RBW correction factor (RBWCF) where RBWCF [dB] =10*lg(100 [kHz]/narrower RBW
[kHz]). , the narrower RBW is 1 kHz and RBWCF is 20 dB for the frequency 9 kHz to 150 kHz, and the
narrower RBW is 10 kHz and RBWCF is 10 dB for the frequency 150 kHz to 30 MHz.
7.2.6
Test Results

Spurious Emission below 30MHz (9KHz to 30MHz)
Floating Waterproof
EUT:
Model No.:
Speaker
Temperature:
Relative Humidity:
20 ℃
4819
Test Mode:
Allen Liu
Mode2/Mode3/Mode4 Test By:
48%
Ant.Pol.
Emission Level(dBuV/m)
Limit 3m(dBuV/m)
Over(dB)
Freq.
(MHz)
H/V
PK
AV
PK
AV
PK
AV
--------Note: the amplitude of spurious emission that is attenuated by more than 20dB below the permissible
limit has no need to be reported.
Distance extrapolation factor =20log(Specific distance/ test distance)( dB);
Limit line=Specific limits(dBuV) + distance extrapolation factor
N2016.11.05.1105.V.1.0
Page 22 of 53

Report No.: NTEK-2017DC0520003F
Spurious Emission below 1GHz (30MHz to 1GHz)
All the modulation modes have been tested, and the worst result was report as below:
EUT:
Temperature:
Pressure:
Test Voltage :
Polar
(H/V)
Floating Waterproof
Speaker
20 ℃
1010hPa
Model Name :
4819
Relative Humidity:
Test Mode:
48%
Mode 1
DC 3.7V form battery
Frequency
Meter
Reading
Factor
Emission
Level
Limits
Margin
(MHz)
(dBuV)
(dB)
(dBuV/m)
(dBuV/m)
(dB)
Remark
31.9546
6.21
20.37
26.58
40
68.8721
8.28
10.15
18.43
40
150.5378
9.58
11.26
20.84
43.5
226.0994
12.75
12.16
24.91
46
385.2805
8.73
14.97
23.7
46
860.0352
6.89
25.93
32.82
46
Remark:
Absolute Level= ReadingLevel+ Factor, Margin= Absolute Level - Limit
-13.42
-21.57
-22.66
-21.09
-22.3
-13.18
QP
QP
QP
QP
QP
QP
N2016.11.05.1105.V.1.0
Page 23 of 53
Polar
(H/V)
Report No.: NTEK-2017DC0520003F
Frequency
Meter
Reading
Factor
Emission
Level
Limits
Margin
(MHz)
(dBuV)
(dB)
(dBuV/m)
(dBuV/m)
(dB)
Remark
30.2111
5.69
21.11
26.8
40
33.4448
6.33
19.64
25.97
40
49.8813
5.78
13.34
19.12
40
315.4808
13.1
13.34
26.44
46
446.4141
9.71
16.08
25.79
46
878.3214
6.98
25.92
32.9
46
Remark:
Absolute Level= ReadingLevel+ Factor, Margin= Absolute Level - Limit
-13.2
-14.03
-20.88
-19.56
-20.21
-13.1
QP
QP
QP
QP
QP
QP
N2016.11.05.1105.V.1.0
Page 24 of 53
Report No.: NTEK-2017DC0520003F

Spurious Emission Above 1GHz (1GHz to 25GHz)
Floating Waterproof
EUT:
Model No.:
Speaker
Temperature:
Relative Humidity:
20 ℃
4819
48%
Test Mode:
Mode2/Mode3/Mode4 Test By:
Allen Liu
All the modulation modes have been tested, and the worst result was report as below:
Frequenc
(MHz)
Read
Level
(dBμV)
Cable
loss
(dB)
4804.13
59.25
5.21
35.59
44.30
55.75
74.00
4804.13
42.32
5.21
35.59
44.30
38.82
7206.55
59.36
6.48
36.27
44.60
57.51
7206.55
43.32
6.48
36.27
44.60
4804.22
60.02
5.21
35.55
4804.22
42.52
5.21
7206.11
59.58
6.48
7206.11
47.02
6.48
4882.52
62.11
5.21
35.66
44.20
58.78
74.00
4882.52
40.36
5.21
35.66
44.20
37.03
54.00
7323.03
59.58
7.10
36.50
44.43
58.75
7323.03
45.25
7.10
36.50
44.43
4882.6
60.02
5.21
35.66
4882.6
45.32
5.21
35.66
7323.42
58.36
7.10
36.50
7323.42
42.15
7.10
4960.55
61.02
5.21
35.52
44.21
57.54
74.00
4960.55
41.32
5.21
35.52
44.21
37.84
7440.17
62.58
7.10
36.53
44.60
61.61
7440.17
44.11
7.10
36.53
44.60
4960.86
63.36
5.21
35.52
4960.86
45.25
5.21
7440.1
60.78
7.10
7440.1
41.25
7.10
Note:
Antenna Preamp Emission
Limits
Margin
Factor
Factor
Level
dB/m
(dB)
(dBμV/m) (dBμV/m)
(dB)
Low Channel (2402 MHz)(8DPSK)--Above 1G
Remark
Comment
-18.25
Pk
Vertical
54.00
-15.18
AV
Vertical
74.00
-16.49
Pk
Vertical
41.47
54.00
-12.53
AV
Vertical
44.30
56.48
74.00
-17.52
Pk
Horizontal
35.55
44.30
38.98
54.00
-15.02
AV
Horizontal
36.27
44.52
57.81
74.00
-16.19
Pk
Horizontal
AV
Horizontal
-15.22
Pk
Vertical
-16.97
AV
Vertical
74.00
-15.25
Pk
Vertical
44.42
54.00
-9.58
AV
Vertical
44.20
56.69
74.00
-17.31
Pk
Horizontal
44.20
41.99
54.00
-12.01
AV
Horizontal
44.43
57.53
74.00
-16.47
Pk
Horizontal
36.50
44.43
41.32
54.00
-12.68
High Channel (2480 MHz)(8DPSK)-- Above 1G
AV
Horizontal
-16.46
Pk
Vertical
54.00
-16.16
AV
Vertical
74.00
-12.39
Pk
Vertical
43.14
54.00
-10.86
AV
Vertical
44.21
59.88
74.00
-14.12
Pk
Horizontal
35.52
44.21
41.77
54.00
-12.23
AV
Horizontal
36.53
44.60
59.81
74.00
-14.19
Pk
Horizontal
36.53
44.60
40.28
54.00
-13.72
AV
Horizontal
36.27
44.52
45.25
54.00
-8.75
Mid Channel (2441 MHz)(8DPSK)--Above 1G
(1) All Readings are Peak Value (VBW=3MHz) and AV Value (VBW=10Hz).
(2) Emission Level= Antenna Factor + Cable Loss + Read Level - Preamp Factor
(3)All other emissions more than 20dB below the limit.
N2016.11.05.1105.V.1.0
Page 25 of 53
Report No.: NTEK-2017DC0520003F

Spurious Emission in Band edge
Floating Waterproof
EUT:
Speaker
Temperature:
20 ℃
Model No.:
4819
Relative Humidity:
48%
Test Mode:
Mode2/ Mode4
Test By:
Allen Liu
All the modulation modes have been tested, and the worst result was report as below:
Note:
Frequenc Meter
Reading
(MHz)
(dBμV)
Cable
Loss
(dB)
2310.00
2310.00
2310.00
2310.00
2390.00
2390.00
2390.00
2390.00
2483.50
2483.50
2483.50
2483.50
59.32
43.25
60.25
41.02
62.58
41.36
58.58
42.59
59.35
43.78
60.48
45.12
2.97
2.97
2.97
2.97
3.14
3.14
3.14
3.14
3.58
3.58
3.58
3.58
2310.00
2310.00
2310.00
2310.00
2390.00
2390.00
2390.00
2390.00
2483.50
2483.50
2483.50
2483.50
58.32
42.02
59.69
40.58
61.32
42.58
62.69
41.78
58.36
42.47
62.02
40.32
2.97
2.97
2.97
2.97
3.14
3.14
3.14
3.14
3.58
3.58
3.58
3.58
Antenna Preamp Emission
Limits
Factor
Factor
Level
dB/m
(dB)
(dBμV/m) (dBμV/m)
1Mbps(8DPSK)- Non-hopping
27.80
43.80
46.29
74
27.80
43.80
30.22
54
27.80
43.80
47.22
74
27.80
43.80
27.99
54
27.21
43.80
49.13
74
27.21
43.80
27.91
54
27.21
43.80
45.13
74
27.21
43.80
29.14
54
27.70
44.00
46.63
74
27.70
44.00
31.06
54
27.70
44.00
47.76
74
27.70
44.00
32.40
54
1Mbps (8DPSK)- hopping
27.80
43.80
45.29
74
27.80
43.80
28.99
54
27.80
43.80
46.66
74
27.80
43.80
27.55
54
27.21
43.80
47.87
74
27.21
43.80
29.13
54
27.21
43.80
49.24
74
27.21
43.80
28.33
54
27.70
44.00
45.64
74
27.70
44.00
29.75
54
27.70
44.00
49.30
74
27.70
44.00
27.60
54
Margin
Detector
(dB)
Type
-27.71
-23.78
-26.78
-26.01
-24.87
-26.09
-28.87
-24.86
-27.37
-22.94
-26.24
-21.6
Pk
AV
Pk
AV
Pk
AV
Pk
AV
Pk
AV
Pk
AV
Horizontal
Horizontal
Vertical
Vertical
Vertical
Vertical
Horizontal
Horizontal
Vertical
Vertical
Horizontal
Horizontal
-28.71
-25.01
-27.34
-26.45
-26.13
-24.87
-24.76
-25.67
-28.36
-24.25
-24.7
-26.4
Pk
AV
Pk
AV
Pk
AV
Pk
AV
Pk
AV
Pk
AV
Horizontal
Horizontal
Vertical
Vertical
Vertical
Vertical
Horizontal
Horizontal
Vertical
Vertical
Horizontal
Horizontal
Comment
(1) All other emissions more than 20dB below the limit.
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Report No.: NTEK-2017DC0520003F

Spurious Emission in Restricted Band 3260MMHz-18000MHz
Floating Waterproof
EUT:
Model No.:
Speaker
Temperature:
Relative Humidity:
20 ℃
4819
48%
Test Mode:
Mode2/ Mode4
Test By:
Allen Liu
All the modulation modes have been tested, and the worst result was report as below:
Frequenc Readin Cable Antenn Preamp Emission
Detecto
Limits Margin
g Level Loss
Factor
Level
Factor
(dBμ
(dBμ
(MHz) (dBμV) (dB)
dB/m
(dB)
(dB) Type
V/m)
V/m)
3260
61.5
4.04
29.57
44.70
50.41
74
-23.59
Pk
3260
52.36
4.04
29.57
44.70
41.27
54
-12.73
AV
3260
59.45
4.04
29.57
44.70
48.36
74
-25.64
Pk
3260
52.66
4.04
29.57
44.70
41.57
54
-12.43
AV
3332
65.36
4.26
29.87
44.40
55.09
74
-18.91
Pk
3332
54.12
4.26
29.87
44.40
43.85
54
-10.15
AV
3332
62.25
4.26
29.87
44.40
51.98
74
-22.02
Pk
3332
49.35
4.26
29.87
44.40
39.08
54
-14.92
AV
17797
43.36
10.99
43.95
43.50
54.80
Note: (1) All other emissions more than 20dB below the limit.
74
-19.20
Pk
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Report No.: NTEK-2017DC0520003F
7.3 NUMBER OF HOPPING CHANNEL
7.3.1
Applicable Standard
According to FCC Part 15.247(a)(1) (iii)and ANSI C63.10-2013
7.3.2
Conformance Limit
Frequency hopping systems in the 2400-2483.5MHz band shall use at least 15 channels.
7.3.3
Measuring Instruments
The Measuring equipment is listed in the section 6.3 of this test report.
7.3.4
Test Setup
Please refer to Section 6.1 of this test report.
7.3.5
Test Procedure
The testing follows ANSI C63.10-2013 clause 7.8.3
The RF output of EUT was connected to the spectrum analyzer by RF cable and attenuator.
The path loss was compensated to the results for each measurement.
Set to the maximum power setting and enable the EUT transmit continuously.
The EUT must have its hopping function enabled.
Use the following spectrum analyzer settings:
Span = the frequency band of operation
RBW  1% of the span
VBW  RBW
Sweep = auto
Detector function = peak
Trace = max hold
7.3.6
Test Results
Temperature:
Floating Waterproof
Speaker
20 ℃
Test Mode:
Mode 5(1Mbps)
EUT:
Number of Hopping
(Channel)
79
Model No.:
4819
Relative Humidity:
48%
Test By:
Allen Liu
Adaptive Frequency hopping
(Channel)
20
limit
Verdict
≥15
Pass
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Report No.: NTEK-2017DC0520003F
Number of Hopping Channel Plot
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Report No.: NTEK-2017DC0520003F
7.4 HOPPING CHANNEL SEPARATION MEASUREMENT
7.4.1
Applicable Standard
According to FCC Part 15.247(a)(1) and ANSI C63.10-2013
7.4.2
Conformance Limit
Frequency hopping systems operating in the 2400-2483.5MHz band shall have hopping channel carrier
frequencies that are separated by 25kHz or two-thirds of the 20dB bandwidth of the hopping channel,
whichever is greater.
7.4.3
Measuring Instruments
The Measuring equipment is listed in the section 6.3 of this test report.
7.4.4
Test Setup
Please refer to Section 6.1 of this test report.
7.4.5
Test Procedure
The testing follows ANSI C63.10-2013 clause 7.8.2
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.
Set to the maximum power setting and enable the EUT transmit continuously.
The EUT was operating in controlled its channel.
Use the following spectrum analyzer settings:
Span = Measurement Bandwidth or Channel Separation
RBW  30KHz
VBW  3*RBW
Sweep = auto
Detector function = peak
Trace = max hold
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7.4.6
Report No.: NTEK-2017DC0520003F
Test Results
Temperature:
Floating Waterproof
Speaker
20 ℃
Test Mode:
Mode2/Mode3/Mode4 Test By:
EUT:
Modulation
Mode
GFSK
π/4-DQPSK
8DPSK
Channel
Number
Channel
Frequency
(MHz)
39
78
39
78
39
78
2402
2441
2480
2402
2441
2480
2402
2441
2480
Model No.:
4819
Relative Humidity:
48%
Measured
Channel
Separation
(MHz)
Allen Liu
Limit
(kHz)
>820.473
>810.306
>781.884
>761.333
>760.667
>760.000
>783.333
>783.333
>783.333
Verdict
20dB BW
20dB BW
20dB BW
2/3 of 20dB BW
2/3 of 20dB BW
2/3 of 20dB BW
2/3 of 20dB BW
2/3 of 20dB BW
2/3 of 20dB BW
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
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Report No.: NTEK-2017DC0520003F
Test Plot
(1Mbps) Channel Separation plot on channel 00-01
(2Mbps) Channel Separation plot on channel 00-01
(1Mbps) Channel Separation plot on channel 39-40
(2Mbps) Channel Separation plot on channel 39-40
(1Mbps) Channel Separation plot on channel 77-78
(2Mbps) Channel Separation plot on channel 77-78
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Report No.: NTEK-2017DC0520003F
Test Plot
(3Mbps) Channel Separation plot on channel 00-01
(3Mbps) Channel Separation plot on channel 39-40
(3Mbps) Channel Separation plot on channel 77-78
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Report No.: NTEK-2017DC0520003F
7.5 AVERAGE TIME OF OCCUPANCY (DWELL TIME)
7.5.1
Applicable Standard
According to FCC Part 15.247(a)(1)(iii) and ANSI C63.10-2013
7.5.2
Conformance Limit
The average time of occupancy on any channel shall not be greater than 0.4s within a period of 0.4s
multiplied by the number of hopping channels employed.
7.5.3
Measuring Instruments
The Measuring equipment is listed in the section 6.3 of this test report.
7.5.4
Test Setup
Please refer to Section 6.1 of this test report.
7.5.5
Test Procedure
The testing follows ANSI C63.10-2013 clause 7.8.4
The RF output of EUT was connected to the spectrum analyzer by RF cable and attenuator.
The path loss was compensated to the results for each measurement.
Set to the maximum power setting and enable the EUT transmit continuously.
The EUT must have its hopping function enabled.
Use the following spectrum analyzer settings:
Span = zero span, centered on a hopping channel
RBW  1MHz
VBW  RBW
Sweep = as necessary to capture the entire dwell time per hopping channel
Detector function = peak
Trace = max hold
Measure the maximum time duration of one single pulse.
Set the EUT for DH5, DH3 and DH1 packet transmitting.
Measure the maximum time duration of one single pulse.
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7.5.6
Report No.: NTEK-2017DC0520003F
Test Results
Floating Waterproof
Speaker
20 ℃
Mode3(GFSK//4-DPSK
/8DPSK)
EUT:
Temperature:
Test Mode:
Modulatio Channel
n Mode
Number
GFSK
π/4DQPSK
8DPSK
39
39
39
39
39
39
39
39
39
39
39
39
39
39
39
39
39
39
Packet
type
DH1
DH3
DH5
2DH1
2DH3
2DH5
3DH1
3DH3
3DH5
Mode
Normal
AFH
Normal
AFH
Normal
AFH
Normal
AFH
Normal
AFH
Normal
AFH
Normal
AFH
Normal
AFH
Normal
AFH
Model No.:
4819
Relative Humidity:
48%
Test By:
Allen Liu
Hops
Over
Occupanc
y(ms)
Time
320
160
160
80
106.67
53.33
320
160
160
80
106.67
53.33
320
160
160
80
106.67
53.33
Pulse
width
(ms)
0.458
0.458
1.725
1.725
3.013
3.013
0.475
0.475
1.767
1.767
0.475
0.475
1.725
1.725
Limit
dwell time
(ms)
146.560
73.280
276.000
138.000
321.397
160.683
152.000
76.000
282.720
141.360
320.010
159.990
152.000
76.000
276.000
138.000
320.010
159.990
(ms)
<400
<400
<400
<400
<400
<400
<400
<400
<400
<400
<400
<400
<400
<400
<400
<400
<400
<400
Verdict
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
Note:
A Period Time = (channel number)*0.4
DH1 Time Slot: Reading * (1600/2)*31.6/(channel number)
DH3 Time Slot: Reading * (1600/4)*31.6/(channel number)
DH5 Time Slot: Reading * (1600/6)*31.6/(channel number)
For Example:
1. In normal mode, hopping rate is 1600 hops/s with 6 slots in 79 hopping channels.
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. In AFH mode, hopping rate is 800 hops/s with 6 slots in 20 hopping channels.
With channel hopping rate (800 / 6 / 20) in Occupancy Time Limit (0.4 x 20) (s),
Hops Over Occupancy Time comes to (800 / 6 / 20) x (0.4 x 20) = 53.33 hops.
3.
Dwell Time(s) = Hops Over Occupancy Time (hops) x Package Transfer Time
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Report No.: NTEK-2017DC0520003F
Test Plot
Package Transfer Time Plot CH39-DH1
Package Transfer Time Plot CH39-2DH1
Package Transfer Time Plot CH39-DH3
Package Transfer Time Plot CH39-2DH3
Package Transfer Time Plot CH39-DH5
Package Transfer Time Plot CH39-2DH5
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Report No.: NTEK-2017DC0520003F
Test Plot
Package Transfer Time Plot CH39-3DH1
Package Transfer Time Plot CH39-3DH3
Package Transfer Time Plot CH39-3DH5
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Report No.: NTEK-2017DC0520003F
7.6 20DB BANDWIDTH TEST
7.6.1
Applicable Standard
According to FCC Part 15.247(a)(1) and ANSI C63.10-2013
7.6.2
Conformance Limit
No limit requirement.
7.6.3
Measuring Instruments
The Measuring equipment is listed in the section 6.3 of this test report.
7.6.4
Test Setup
Please refer to Section 6.1 of this test report.
7.6.5
Test Procedure
The testing follows ANSI C63.10-2013 clause 6.9.2
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.
Set to the maximum power setting and enable the EUT transmit continuously.
The EUT was operating in controlled its channel.
Use the following spectrum analyzer settings:
Span = approximately 2 to 3 times the 20 dB bandwidth, centered on a hopping channel
RBW  1% of the 20 dB bandwidth
VBW  RBW
Sweep = auto
Detector function = peak
Trace = max hold
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7.6.6
Report No.: NTEK-2017DC0520003F
Test Results
Temperature:
Floating Waterproof
Speaker
20 ℃
Test Mode:
Mode2/Mode3/Mode4 Test By:
EUT:
Test Channel
Model No.:
4819
Relative Humidity:
48%
Measured
Frequency Bandwidth(KHz)
2402
2441
2480
39
78
2402
2441
2480
39
78
2402
2441
2480
Limit
Verdict
(kHz)
(MHz)
39
78
Allen Liu
1Mbps
820.473
810.306
781.884
2Mbps
1142
1141
1140
3Mbps
1175
1175
1175
N/A
N/A
N/A
PASS
PASS
PASS
N/A
N/A
N/A
PASS
PASS
PASS
N/A
N/A
N/A
PASS
PASS
PASS
Note: N/A (Not Applicable)
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Report No.: NTEK-2017DC0520003F
Test Plot
20dB Bandwidth plot on channel 00 (1Mbps)
20dB Bandwidth plot on channel 00 (2Mbps)
20dB Bandwidth plot on channel 39 (1Mbps)
20dB Bandwidth plot on channel 39 (2Mbps)
20dB Bandwidth plot on channel 78 (1Mbps)
20dB Bandwidth plot on channel 78 (2Mbps)
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Report No.: NTEK-2017DC0520003F
Test Plot
20dB Bandwidth plot on channel 00 (3Mbps)
20dB Bandwidth plot on channel 39 (3Mbps)
20dB Bandwidth plot on channel 78 (3Mbps)
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Report No.: NTEK-2017DC0520003F
7.7 PEAK OUTPUT POWER
7.7.1
Applicable Standard
According to FCC Part 15.247(b)(1) and ANSI C63.10-2013
7.7.2
Conformance Limit
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.
7.7.3
Measuring Instruments
The Measuring equipment is listed in the section 6.3 of this test report.
7.7.4
Test Setup
Please refer to Section 6.1 of this test report.
7.7.5
Test Procedure
The testing follows ANSI C63.10-2013 clause 7.8.5.
The RF output of EUT was connected to the spectrum analyzer by RF cable and attenuator.
The path loss was compensated to the results for each measurement.
Set to the maximum power setting and enable the EUT transmit continuously.
The EUT was operating in controlled its channel.
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
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7.7.6
Report No.: NTEK-2017DC0520003F
Test Results
Temperature:
Floating Waterproof
Speaker
20 ℃
Test Mode:
Mode2/Mode3/Mode4 Test By:
EUT:
Test
Channel
Frequenc
(MHz)
39
78
2402
2441
2480
39
78
2402
2441
2480
39
78
2402
2441
2480
Model No.:
4819
Relative Humidity:
48%
Peak
Output
Power
Power
Setting
(dBm)
1Mbps
Default
-2.72
Default
-2.05
Default
-1.64
2Mbps
Default
-0.65
Default
-0.02
Default
0.37
3Mbps
Default
-0.55
Default
-0.01
Default
0.38
Allen Liu
LIMIT
Verdict
(dBm)
30
30
30
PASS
PASS
PASS
20.97
20.97
20.97
PASS
PASS
PASS
20.97
20.97
20.97
PASS
PASS
PASS
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Report No.: NTEK-2017DC0520003F
Test Plot
Peak output Power plot on channel 00 (1Mbps)
Peak output Power plot on channel 00 (2Mbps)
Peak output Power plot on channel 39 (1Mbps)
Peak output Power plot on channel 39 (2Mbps)
Peak output Power plot on channel 78 (1Mbps)
Peak output Power plot on channel 78 (2Mbps)
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Report No.: NTEK-2017DC0520003F
Test Plot
Peak output Power plot on channel 00 (3Mbps)
Peak output Power plot on channel 39 (3Mbps)
Peak output Power plot on channel 78 (3Mbps)
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Report No.: NTEK-2017DC0520003F
7.8 CONDUCTED BAND EDGE MEASUREMENT
7.8.1
Applicable Standard
According to FCC Part 15.247(d) and ANSI C63.10-2013
7.8.2
Conformance 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, based on either an RF conducted or a radiated measurement, provided the transmitter
demonstrates compliance with the peak conducted power limits. If the transmitter complies with the
conducted power limits based on the use of RMS averaging over a time interval, as permitted under
paragraph (b)(3) of this section, the attenuation required under this paragraph shall be 30 dB instead of 20
dB. Attenuation below the general limits specified in §15.209(a) is not required. In addition, radiated
emissions which fall in the restricted bands, as defined in §15.205(a), must also comply with the radiated
emission limits specified in §15.209(a) (see §15.205(c)).
7.8.3
Measuring Instruments
The Measuring equipment is listed in the section 6.3 of this test report.
7.8.4
Test Setup
Please refer to Section 6.1 of this test report.
7.8.5
Test Procedure
The testing follows ANSI C63.10-2013 clause 7.8.6.
The RF output of EUT was connected to the spectrum analyzer by RF cable and attenuator.
The path loss was compensated to the results for each measurement.
Set to the maximum power setting and enable the EUT transmit continuously.
The EUT must have its hopping function enabled.
Use the following spectrum analyzer settings:
Span = approximately 5 times the 20 dB bandwidth, centered on a hopping channel
RBW = 100KHz
VBW = 300KHz
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.
Measure the highest amplitude appearing on spectral display and set it as a reference level. Plot the graph with marking
the highest point and edge frequency.
Repeat above procedures until all measured frequencies were complete.
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7.8.6
Report No.: NTEK-2017DC0520003F
Test Results
EUT:
Floating Waterproof Speaker
Model No.:
4819
Temperature:
20 ℃
Relative Humidity: 48%
Test Mode:
Mode2 /Mode4/ Mode 5
Test By:
Allen Liu
Note: Hopping enabled and disabled have evaluated,and the wortest data was reported
Test Plot
(GFSK): Band Edge-Low Channel
(GFSK): Band Edge-High Channel
(GFSK): Band Edge-Low Channel (Hopping Mode)
(GFSK): Band Edge-High Channel (Hopping Mode)
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Report No.: NTEK-2017DC0520003F
Test Plot
(π /4-DQPSK): Band Edge-Low Channel
(π /4-DQPSK): Band Edge-High Channel
(π /4-DQPSK): Band Edge-Low Channel
(π /4-DQPSK): Band Edge-High Channel
(Hopping Mode)
(Hopping Mode)
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Report No.: NTEK-2017DC0520003F
Test Plot
(8DPSK): Band Edge-Low Channel
(8DPSK): Band Edge-High Channel
(8DPSK): Band Edge-Low Channel
(8DPSK): Band Edge-High Channel
(Hopping Mode)
(Hopping Mode)
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Report No.: NTEK-2017DC0520003F
7.9 SPURIOUS RF CONDUCTED EMISSION
7.9.1
Applicable Standard
According to FCC Part 15.247(d) and ANSI C63.10-2013.
7.9.2
Conformance 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, based on either an RF conducted or a radiated measurement, provided the transmitter
demonstrates compliance with the peak conducted power limits. If the transmitter complies with the
conducted power limits based on the use of RMS averaging over a time interval, as permitted under
paragraph (b)(3) of this section, the attenuation required under this paragraph shall be 30 dB instead of 20
dB. Attenuation below the general limits specified in §15.209(a) is not required. In addition, radiated
emissions which fall in the restricted bands, as defined in §15.205(a), must also comply with the radiated
emission limits specified in §15.209(a) (see §15.205(c)).
7.9.3
Measuring Instruments
The Measuring equipment is listed in the section 6.3 of this test report.
7.9.4
Test Setup
Please refer to Section 6.1 of this test report.
7.9.5
Test Procedure
Establish an emission level by using the following procedure:
a) Set the center frequency and span to encompass frequency range to be measured.
b) Set the RBW = 100 kHz.
c) Set the VBW ≥ [3 × RBW].
d) Detector = peak.
e) Sweep time = auto couple.
f) Trace mode = max hold.
g) Allow trace to fully stabilize.
h) Use the peak marker function to determine the maximum amplitude level.
Then the limit shall be attenuated by at least 20 dB relative to the maximum
amplitude level in 100 kHz.
7.9.6
Test Results
Remark: The measurement frequency range is from 9KHz to the 10th harmonic of the fundamental
frequency. The lowest, middle and highest channels are tested to verify the spurious emissions and bandege
measurement data.
The worst mode is 8DPSK mode, and the report only show the worst mode data.
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Report No.: NTEK-2017DC0520003F
Test Plot(8DPSK)
8DPSK on channel 00
8DPSK on channel 00
8DPSK on channel 00
8DPSK on channel 00
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Test Plot
8DPSK on channel 39
8DPSK on channel 39
8DPSK on channel 39
8DPSK on channel 39
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Report No.: NTEK-2017DC0520003F
Test Plot
8DPSK on channel 78
8DPSK on channel 78
8DPSK on channel 78
8DPSK on channel 78
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Report No.: NTEK-2017DC0520003F
7.10 ANTENNA APPLICATION
7.10.1 Antenna Requirement
15.203 requirement: 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 partyshall be used with the device.
7.10.2 Result
The EUT antenna is permanent attached PCB antenna (Gain:1dBi). It comply with the standard requirement.
END OF REPORT
N2016.11.05.1105.V.1.0
Download: 4819 Floating Waterproof Speaker Test Report ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT SHENZHEN FENDA TECHNOLOGY CO., LTD.
Mirror Download [FCC.gov]4819 Floating Waterproof Speaker Test Report ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT SHENZHEN FENDA TECHNOLOGY CO., LTD.
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Document DescriptionTest Report
Short Term ConfidentialNo
Permanent ConfidentialNo
SupercedeNo
Document TypeTest Report
Display FormatAdobe Acrobat PDF - pdf
Filesize102.48kB (1280992 bits)
Date Submitted2017-06-13 00:00:00
Date Available2017-06-13 00:00:00
Creation Date2017-06-08 09:47:33
Producing SoftwareMicrosoft® Office Word 2007
Document Lastmod2017-06-08 09:47:33
Document TitleELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT
Document CreatorMicrosoft® Office Word 2007
Document Author: fly

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Title                           : ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT
Author                          : fly
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Create Date                     : 2017:06:08 09:47:33+08:00
Modify Date                     : 2017:06:08 09:47:33+08:00
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