TVT280 Visual IR Thermometer Test Report FCC Part 15.247B_BLE Intrinity Global Limited.

Intrinity Global Limited. Visual IR Thermometer

FCC ID Filing: 2ALZ6-TVT280
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Model: TVT280
FCC Part 15C
Measurement and Test Report
For
Intrinity Global Limited.
Unit 1707, Floor 17, Westley Square, 48 Hoi Yuen Road, Kwun Tong,
Hong Kong
FCC ID: 2ALZ6-TVT280
FCC Rule(s):
FCC Part 15.247
Product Description:
Visual IR Thermometer
Tested Model:
TVT280
Report No.:
STR17048310I-3
Tested Date:
2017-04-27 to 2017-05-25
Issued Date:
2017-05-26
Tested By:
Rode Liu / Engineer
Reviewed By:
Silin Chen / EMC Manager
Approved & Authorized By:
Jandy So / PSQ Manager
Prepared By:
Shenzhen SEM.Test Technology Co., Ltd.
1/F, Building A, Hongwei Industrial Park, Liuxian 2nd Road,
Bao'an District, Shenzhen, P.R.C.(518101)
Tel.: +86-755-33663308 Fax.: +86-755-33663309 Website: www.semtest.com.cn
Note: This test report is limited to the above client company and the product model only. It
may not be duplicated without prior permitted by Shenzhen SEM.Test Technology Co., Ltd.
Report No.: STR17048310I-3
Page 1 of 35
FCC Part 15.247
Model: TVT280
TABLE OF CONTENTS
1. GENERAL INFORMATION ...................................................................................................................................3
1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ...............................................................................3
1.2 TEST STANDARDS...................................................................................................................................................4
1.3 TEST METHODOLOGY .............................................................................................................................................4
1.4 TEST FACILITY .......................................................................................................................................................4
1.5 EUT SETUP AND TEST MODE .................................................................................................................................5
1.6 MEASUREMENT UNCERTAINTY ..............................................................................................................................5
1.7 TEST EQUIPMENT LIST AND DETAILS .....................................................................................................................6
2. SUMMARY OF TEST RESULTS ...........................................................................................................................7
3. RF EXPOSURE .........................................................................................................................................................8
3.1 STANDARD APPLICABLE.........................................................................................................................................8
3.2 TEST RESULT..........................................................................................................................................................8
4. ANTENNA REQUIREMENT ..................................................................................................................................9
4.1 STANDARD APPLICABLE.........................................................................................................................................9
4.2 EVALUATION INFORMATION ..................................................................................................................................9
5. POWER SPECTRAL DENSITY ...........................................................................................................................10
5.1 STANDARD APPLICABLE.......................................................................................................................................10
5.2 TEST PROCEDURE .................................................................................................................................................10
5.3 ENVIRONMENTAL CONDITIONS ............................................................................................................................10
5.4 SUMMARY OF TEST RESULTS/PLOTS ....................................................................................................................10
6. 6DB BANDWIDTH .................................................................................................................................................13
6.1 STANDARD APPLICABLE.......................................................................................................................................13
6.2 TEST PROCEDURE .................................................................................................................................................13
6.3 ENVIRONMENTAL CONDITIONS ............................................................................................................................13
6.4 SUMMARY OF TEST RESULTS/PLOTS ....................................................................................................................13
7. RF OUTPUT POWER ............................................................................................................................................16
7.1 STANDARD APPLICABLE.......................................................................................................................................16
7.2 TEST PROCEDURE .................................................................................................................................................16
7.3 ENVIRONMENTAL CONDITIONS ............................................................................................................................16
7.4 SUMMARY OF TEST RESULTS/PLOTS ....................................................................................................................16
8. FIELD STRENGTH OF SPURIOUS EMISSIONS .............................................................................................17
8.1 STANDARD APPLICABLE.......................................................................................................................................17
8.2 TEST PROCEDURE .................................................................................................................................................17
8.3 CORRECTED AMPLITUDE & MARGIN CALCULATION ............................................................................................18
8.4 ENVIRONMENTAL CONDITIONS ............................................................................................................................18
8.5 SUMMARY OF TEST RESULTS/PLOTS ....................................................................................................................19
9. OUT OF BAND EMISSIONS .................................................................................................................................26
9.1 STANDARD APPLICABLE.......................................................................................................................................26
9.2 TEST PROCEDURE .................................................................................................................................................26
9.3 ENVIRONMENTAL CONDITIONS ............................................................................................................................27
9.4 SUMMARY OF TEST RESULTS/PLOTS ....................................................................................................................27
10. CONDUCTED EMISSIONS ................................................................................................................................32
10.1 TEST PROCEDURE ...............................................................................................................................................32
10.2 BASIC TEST SETUP BLOCK DIAGRAM .................................................................................................................32
10.3 ENVIRONMENTAL CONDITIONS ..........................................................................................................................32
10.4 TEST RECEIVER SETUP .......................................................................................................................................33
10.5 SUMMARY OF TEST RESULTS/PLOTS ..................................................................................................................33
10.6 CONDUCTED EMISSIONS TEST DATA ..................................................................................................................33
Report No.: STR17048310I-3
Page 2 of 35
FCC Part 15.247
Model: TVT280
1. GENERAL INFORMATION
1.1 Product Description for Equipment Under Test (EUT)
Client Information
Applicant:
Address of applicant:
Manufacturer:
Address of manufacturer:
Intrinity Global Limited.
Unit 1707, Floor 17, Westley Square, 48 Hoi Yuen
Road, Kwun Tong, Hong Kong
Intrinity Global Limited.
Unit 1707, Floor 17, Westley Square, 48 Hoi Yuen
Road, Kwun Tong, Hong Kong
General Description of EUT
Product Name:
Visual IR Thermometer
Trade Name:
Model No.:
TVT280
Adding Model(s):
TSD200
Rated Voltage:
Battery Capacity:
DC 3.7V by battery
Note: The test data is gathered from a production sample, provided by the manufacturer. The appearance of
others models listed in the report is different from main-test model TVT280, but the circuit and the
electronic construction do not change, declared by the manufacturer.
Technical Characteristics of EUT
Bluetooth Version:
Frequency Range:
RF Output Power:
Data Rate:
Modulation:
Quantity of Channels:
Channel Separation:
Type of Antenna:
Antenna Gain:
Lowest Internal Frequency:
Report No.: STR17048310I-3
V4.1(BLE mode)
2402-2480MHz
0.217dBm (Conducted)
1Mbps
GFSK
40
2MHz
Chip Antenna
1.0dBi
32.768kHz
Page 3 of 35
FCC Part 15.247
Model: TVT280
1.2 Test Standards
The following report is prepared on behalf of the Intrinity Global Limited. in accordance with FCC Part 15,
Subpart C, and section 15.203, 15.205, 15.207, 15.209 and 15.247 of the Federal Communication Commissions
rules.
The objective is to determine compliance with FCC Part 15, Subpart C, and section 15.203, 15.205, 15.207,
15.209 and 15.247 of the Federal Communication Commissions rules.
Maintenance of compliance is the responsibility of the manufacturer. Any modification of the product, which
result in lowering the emission, should be checked to ensure compliance has been maintained.
1.3 Test Methodology
All measurements contained in this report were conducted with ANSI C63.10-2013, American National Standard
for Testing Unlicensed Wireless Devices, and ANSI C63.4-2014, American National Standard for Methods of
Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the range of 9
kHz to 40 GHz. The measurement guide KDB 558074 D01 v04 for digital transmission systems shall be
performed also.
1.4 Test Facility
FCC – Registration No.: 934118
Shenzhen SEM.Test Technology Co., Ltd. EMC Laboratory has been registered and fully described in a report
filed with the (FCC) Federal Communications Commission. The acceptance letter from the FCC is maintained in
our files and the Registration is 934118.
Industry Canada (IC) Registration No.: 11464A
The 3m Semi-anechoic chamber of Shenzhen SEM.Test Technology Co., Ltd. has been registered by Certification
and Engineering Bureau of Industry Canada for radio equipment testing with Registration No.: 11464A.
CNAS Registration No.: L4062
Shenzhen SEM.Test Technology Co., Ltd. is a testing organization accredited by China National Accreditation
Service for Conformity Assessment (CNAS) according to ISO/IEC 17025. The accreditation certificate number is
L4062. All measurement facilities used to collect the measurement data are located at 1/F, Building A, Hongwei
Industrial Park, Liuxian 2nd Road, Bao’an District, Shenzhen, P.R.C (518101).
Report No.: STR17048310I-3
Page 4 of 35
FCC Part 15.247
Model: TVT280
1.5 EUT Setup and Test Mode
The EUT was operated in the engineering mode to fix the Tx frequency that was for the purpose of the
measurements. All testing shall be performed under maximum output power condition, and to measure its highest
possible emissions level, more detailed description as follows:
Test Mode List
Test Mode
Description
Remark
TM1
GFSK(BLE)
2402MHz, 2442MHz, 2480MHz
Accessories Equipment List and Details
Description
Manufacturer
Model No.
Serial Number
Notebook
Lenovo
E10
Adapter
Accessories Cable List and Details
Cable Description
Length (m)
Shielded/Unshielded
With Core/Without Core
Cable Description
Length (m)
Shielded/Unshielded
With Core/Without Core
USB cable
1.0
Shielded
With Core
EUT Cable List and Details
1.6 Measurement Uncertainty
Measurement uncertainty
Parameter
Conditions
Uncertainty
RF Output Power
Conducted
±0.42dB
Occupied Bandwidth
Conducted
±1.5%
Power Spectral Density
Conducted
±1.8dB
Conducted Spurious Emission
Conducted
±2.17dB
Conducted Emissions
Conducted
±2.88dB
Transmitter Spurious Emissions
Radiated
±5.1dB
Report No.: STR17048310I-3
Page 5 of 35
FCC Part 15.247
Model: TVT280
1.7 Test Equipment List and Details
No.
Description
Serial No.
Spectrum Analyzer
Manufacturer
Agilent
Model
SEMT-1072
E4407B
MY41440400
2016-06-04 2017-06-03
SEMT-1031
Spectrum Analyzer
Rohde & Schwarz
FSP30
836079/035
2016-06-04 2017-06-03
SEMT-1007
EMI Test Receiver
Rohde & Schwarz
ESVB
825471/005
2016-06-04 2017-06-03
SEMT-1008
Amplifier
Agilent
8447F
3113A06717
2016-06-04 2017-06-03
SEMT-1043
Amplifier
C&D
PAP-1G18
2002
2016-06-04 2017-06-03
SEMT-1011
Broadband Antenna
Schwarz beck
VULB9163
9163-333
2016-06-04 2017-06-03
SEMT-1042
Horn Antenna
ETS
3117
00086197
2016-06-04 2017-06-03
SEMT-1121
Horn Antenna
Schwarzbeck
BBHA 9170
BBHA9170582
2016-06-04 2017-06-03
SEMT-1069
Loop Antenna
Schwarz beck
FMZB 1516
9773
2016-06-04 2017-06-03
SEMT-1001
EMI Test Receiver
Rohde & Schwarz
ESPI
101611
2016-06-04 2017-06-03
SEMT-1003
L.I.S.N
Schwarz beck
NSLK8126
8126-224
2016-06-04 2017-06-03
SEMT-1002
Pulse Limiter
Rohde & Schwarz
ESH3-Z2
100911
2016-06-04 2017-06-03
Report No.: STR17048310I-3
Page 6 of 35
Cal Date
Due Date
FCC Part 15.247
Model: TVT280
2. SUMMARY OF TEST RESULTS
FCC Rules
Description of Test Item
Result
§ 2.1093
RF Exposure
Compliant
§15.203;§15.247(b)(4)(i)
Antenna Requirement
Compliant
§15.205
Restricted Band of Operation
Compliant
§15.207(a)
Conducted Emission
Compliant
§15.247(e)
Power Spectral Density
Compliant
§15.247(a)(2)
6 dB Bandwidth
Compliant
§15.247(b)(3)
RF Output Power
Compliant
§15.209(a)
Radiated Emission
Compliant
§15.247(d)
Band Edge (Out of Band Emissions)
Compliant
N/A: not applicable
Report No.: STR17048310I-3
Page 7 of 35
FCC Part 15.247
Model: TVT280
3. RF Exposure
3.1 Standard Applicable
According to§1.1307 and §2.1093, the portable transmitter must comply the RF exposure requirements.
3.2 Test Result
This product complied with the requirement of the RF exposure, please see the RF Exposure Report.
Report No.: STR17048310I-3
Page 8 of 35
FCC Part 15.247
Model: TVT280
4. Antenna Requirement
4.1 Standard Applicable
According to FCC Part 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. The use of a permanently attached antenna or of
an antenna that uses a unique coupling to the intentional radiator shall be considered sufficient to comply with the
provisions of this section.
4.2 Evaluation Information
This product has a chip antenna, fulfill the requirement of this section.
Report No.: STR17048310I-3
Page 9 of 35
FCC Part 15.247
Model: TVT280
5. Power Spectral Density
5.1 Standard Applicable
According to 15.247(a)(1)(iii), For digitally modulated systems, the power spectral density conducted from the
intentional radiator to the antenna shall not be greater than 8 dBm in any 3 kHz band during any time interval of
continuous transmission.
5.2 Test Procedure
According to the KDB 558074 D01 v04, the test method of power spectral density as below:
a) Set analyzer center frequency to DTS channel center frequency.
b) Set the span to 1.5 times the DTS bandwidth.
c) Set the RBW to: 3 kHz ≤ RBW ≤ 100 kHz.
d) Set the VBW ≥ 3 × RBW.
e) Detector = peak.
f) Sweep time = auto couple.
g) Trace mode = max hold.
h) Allow trace to fully stabilize.
i) Use the peak marker function to determine the maximum amplitude level within the RBW.
j) If measured value exceeds limit, reduce RBW (no less than 3 kHz) and repeat.
5.3 Environmental Conditions
Temperature:
26 C
Relative Humidity:
54
ATM Pressure:
1011 mbar
5.4 Summary of Test Results/Plots
Test Mode
Test Channel
MHz
Power Spectral Density
dBm/3kHz
Limit
dBm/3kHz
2402
-17.93
2442
-20.7
2480
-25.59
GFSK(BLE)
Please refer to the following test plots:
Report No.: STR17048310I-3
Page 10 of 35
FCC Part 15.247
Model: TVT280
Low Channel
Middle Channel
Report No.: STR17048310I-3
Page 11 of 35
FCC Part 15.247
Model: TVT280
High Channel
Report No.: STR17048310I-3
Page 12 of 35
FCC Part 15.247
Model: TVT280
6. 6dB Bandwidth
6.1 Standard Applicable
According to 15.247(a)(2). Systems using digital modulation techniques may operate in the 902–928 MHz,
2400–2483.5 MHz, and 5725–5850 MHz bands. The minimum 6 dB bandwidth shall be at least 500 kHz.
6.2 Test Procedure
a) Set RBW = 100 kHz.
b) Set the video bandwidth (VBW) ≥ 3 × RBW.
c) Detector = Peak.
d) Trace mode = max hold.
e) Sweep = auto couple.
f) Allow the trace to stabilize.
g) Measure the maximum width of the emission that is constrained by the frequencies associated with the two
outermost amplitude points (upper and lower frequencies) that are attenuated by 6 dB relative to the maximum
level measured in the fundamental emission.
6.3 Environmental Conditions
Temperature:
25 C
Relative Humidity:
53
ATM Pressure:
1018 mbar
6.4 Summary of Test Results/Plots
Test Mode
Test Channel
MHz
6 dB Bandwidth
kHz
99% Bandwidth
kHz
Limit
kHz
2402
735.774
1056.1
≥500
2442
754.979
1053.5
≥500
2480
714.869
1051.9
≥500
GFSK(BLE)
Please refer to the following test plots:
Report No.: STR17048310I-3
Page 13 of 35
FCC Part 15.247
Model: TVT280
For BLE
Low Channel:
Middle Channel:
Report No.: STR17048310I-3
Page 14 of 35
FCC Part 15.247
Model: TVT280
High Channel:
Report No.: STR17048310I-3
Page 15 of 35
FCC Part 15.247
Model: TVT280
7. RF Output Power
7.1 Standard Applicable
According to 15.247(b)(3). For systems using digital modulation in the 902–928 MHz, 2400–2483.5 MHz, and
5725–5850 MHz bands: 1 Watt.
7.2 Test Procedure
According to section KDB-558074 D01 v04 section 9.1.1, this procedure shall be used when the measurement
instrument has available a resolution bandwidth that is greater than the DTS bandwidth.
a) Set the RBW ≥ DTS bandwidth.
b) Set VBW ≥ 3 × RBW.
c) Set span ≥ 3 x RBW
d) Sweep time = auto couple.
e) Detector = peak.
f) Trace mode = max hold.
g) Allow trace to fully stabilize.
h) Use peak marker function to determine the peak amplitude level.
7.3 Environmental Conditions
Temperature:
26 C
Relative Humidity:
57
ATM Pressure:
1011 mbar
7.4 Summary of Test Results/Plots
Test Mode
GFSK(BLE)
Frequency
MHz
Reading
dBm
Output Power
mW
Limit
mW
2402
0.217
1.05
1000
2442
-0.424
0.91
1000
2480
0.022
1.01
1000
Note: the antenna gain of 1.0dBi less than 6dBi maximum permission antenna gain value based on 1 watt peak
output power limit.
Report No.: STR17048310I-3
Page 16 of 35
FCC Part 15.247
Model: TVT280
8. Field Strength of Spurious Emissions
8.1 Standard Applicable
According to §15.247(d), in any 100 kHz bandwidth outside the frequency band in which the spread spectrum or
digitally modulated intentional radiator is operating, the radio frequency power that is produced by the intentional
radiator shall be at least 20 dB below that in the 100 kHz bandwidth within the band that contains the highest level
of the desired power, based on either an RF conducted or a radiated measurement, provided the transmitter
demonstrates compliance with the peak conducted power limits. If the transmitter complies with the conducted
power limits based on the use of RMS averaging over a time interval, as permitted under paragraph (b)(3) of this
section, the attenuation required under this paragraph shall be 30 dB instead of 20 dB. 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).
The emission limit in this paragraph is based on measurement instrumentation employing an average detector. The
provisions in §15.35 for limiting peak emissions apply. Spurious Radiated Emissions measurements starting
below or at the lowest crystal frequency.
8.2 Test Procedure
The setup of EUT is according with per ANSI C63.10-2013 measurement procedure. The specification used was
with the FCC Part 15.205 15.247(a) and FCC Part 15.209 Limit.
The external I/O cables were draped along the test table and formed a bundle 30 to 40 cm long in the middle.
The spacing between the peripherals was 10 cm.
Report No.: STR17048310I-3
Page 17 of 35
FCC Part 15.247
Model: TVT280
Antenna
Tower
1m-4m
3m
EUT SYS
1.5m
Turntable
Table
To EMI Receiver
Ground Plane
Frequency :9kHz-30MHz
RBW=10KHz,
VBW =30KHz
Sweep time= Auto
Trace = max hold
Detector function = peak
Frequency :30MHz-1GHz
RBW=120KHz,
VBW=300KHz
Sweep time= Auto
Trace = max hold
Detector function = peak, QP
Frequency :Above 1GHz
RBW=1MHz,
VBW=3MHz(Peak), 10Hz(AV)
Sweep time= Auto
Trace = max hold
Detector function = peak, AV
8.3 Corrected Amplitude & Margin Calculation
The Corrected Amplitude is calculated by adding the Antenna Factor and the Cable Factor, and subtracting the
Amplifier Gain from the Amplitude reading. The basic equation is as follows:
Corr. Ampl. = Indicated Reading + Ant. Factor + Cable Loss – Ampl. Gain
The “Margin” column of the following data tables indicates the degree of compliance with the applicable limit.
For example, a margin of -6dBV means the emission is 6dBV below the maximum limit. The equation for
margin calculation is as follows:
Margin = Corr. Ampl. – FCC Part 15 Limit
8.4 Environmental Conditions
Temperature:
25 C
Relative Humidity:
52
ATM Pressure:
1012 mbar
Report No.: STR17048310I-3
Page 18 of 35
FCC Part 15.247
Model: TVT280
8.5 Summary of Test Results/Plots
According to the data below, the FCC Part 15.205, 15.209 and 15.247 standards, and had the worst cases:
Note: this EUT was tested in 3 orthogonal positions and the worst case position data was reported.
Plot of Radiated Emissions Test Data
EUT:
Visual IR Thermometer
Tested Model:
TVT280
Operating Condition:
Transmitting-Low channel (2402MHz)
Comment:
DC 3.7V
Test Specification:
No.
Horizontal
Frequency
Reading
Correct
Result
Limit
Margin
(MHz)
(dBuV/m)
dB/m
(dBuV/m)
(dBuV/m)
(dB)
91.1746
31.06
-13.36
17.70
43.50
-25.80
230
100
peak
229.2931
54.48
-11.77
42.71
46.00
-3.29
97
100
peak
255.6231
53.49
-10.26
43.23
46.00
-2.77
298
100
peak
366.8231
30.74
-7.59
23.15
46.00
-22.85
102
100
peak
480.5276
28.47
-5.36
23.11
46.00
-22.89
348
100
peak
790.6188
28.30
0.21
28.51
46.00
-17.49
317
100
peak
Report No.: STR17048310I-3
Page 19 of 35
Degree
Height
Remark
(cm)
FCC Part 15.247
Model: TVT280
Test Specification:
No.
Vertical
Frequency
Reading
Correct
Result
Limit
Margin
(MHz)
(dBuV/m)
dB/m
(dBuV/m)
(dBuV/m)
(dB)
35.0048
46.20
-11.55
34.65
40.00
-5.35
333
100
peak
233.3487
51.46
-11.47
39.99
46.00
-6.01
92
100
peak
258.3264
45.59
-10.14
35.45
46.00
-10.55
335
100
peak
365.5391
45.63
-7.65
37.98
46.00
-8.02
119
100
peak
399.0302
45.42
-7.58
37.84
46.00
-8.16
347
100
peak
560.6928
48.44
-5.74
42.70
46.00
-3.30
241
100
peak
Report No.: STR17048310I-3
Page 20 of 35
Degree
Height
Remark
(cm)
FCC Part 15.247
Model: TVT280
Plot of Radiated Emissions Test Data
EUT:
Visual IR Thermometer
Tested Model:
TVT280
Operating Condition:
Transmitting-Middle channel (2442MHz)
Comment:
DC 3.7V
Test Specification:
No.
Horizontal
Frequency
Reading
Correct
Result
Limit
Margin
(MHz)
(dBuV/m)
dB/m
(dBuV/m)
(dBuV/m)
(dB)
229.2931
54.12
-11.77
42.35
46.00
-3.65
66
100
peak
255.6231
49.75
-10.26
39.49
46.00
-6.51
263
100
peak
369.4047
29.50
-7.48
22.02
46.00
-23.98
72
100
peak
480.5276
27.86
-5.36
22.50
46.00
-23.50
165
100
peak
631.6884
28.24
-3.03
25.21
46.00
-20.79
81
100
peak
796.1830
28.01
0.03
28.04
46.00
-17.96
98
100
peak
Report No.: STR17048310I-3
Page 21 of 35
Degree
Height
Remark
(cm)
FCC Part 15.247
Model: TVT280
Test Specification:
No.
Vertical
Frequency
Reading
Correct
Result
Limit
Margin
(MHz)
(dBuV/m)
dB/m
(dBuV/m)
(dBuV/m)
(dB)
35.2512
45.14
-11.49
33.65
40.00
-6.35
71
100
peak
39.0245
42.94
-10.63
32.31
40.00
-7.69
243
100
peak
45.5348
38.63
-10.44
28.19
40.00
-11.81
90
100
peak
135.5062
44.87
-14.55
30.32
43.50
-13.18
277
100
peak
229.2931
46.05
-11.77
34.28
46.00
-11.72
50
100
peak
252.0627
42.83
-10.42
32.41
46.00
-13.59
102
100
peak
Report No.: STR17048310I-3
Page 22 of 35
Degree
Height
Remark
(cm)
FCC Part 15.247
Model: TVT280
Plot of Radiated Emissions Test Data
EUT:
Visual IR Thermometer
Tested Model:
TVT280
Operating Condition:
Transmitting-High channel (2480MHz)
Comment:
DC 3.7V
Test Specification:
No.
Horizontal
Frequency
Reading
Correct
Result
Limit
Margin
(MHz)
(dBuV/m)
dB/m
(dBuV/m)
(dBuV/m)
(dB)
229.2931
54.82
-11.77
43.05
46.00
-2.95
111
100
peak
255.6231
52.85
-10.26
42.59
46.00
-3.41
186
100
peak
366.8231
30.05
-7.59
22.46
46.00
-23.54
112
100
peak
494.1984
28.81
-5.95
22.86
46.00
-23.14
123
100
peak
618.5369
28.45
-2.90
25.55
46.00
-20.45
95
100
peak
779.6068
27.83
0.54
28.37
46.00
-17.63
314
100
peak
Report No.: STR17048310I-3
Page 23 of 35
Degree
Height
Remark
(cm)
FCC Part 15.247
Model: TVT280
Test Specification:
No.
Vertical
Frequency
Reading
Correct
Result
Limit
Margin
(MHz)
(dBuV/m)
dB/m
(dBuV/m)
(dBuV/m)
(dB)
34.7602
45.19
-11.60
33.59
40.00
-6.41
97
100
peak
39.1616
43.41
-10.59
32.82
40.00
-7.18
107
100
peak
120.2766
43.03
-13.72
29.31
43.50
-14.19
126
100
peak
159.7844
41.59
-15.03
26.56
43.50
-16.94
136
100
peak
217.5443
46.56
-12.37
34.19
46.00
-11.81
148
100
peak
252.0627
43.24
-10.42
32.82
46.00
-13.18
232
100
peak
Report No.: STR17048310I-3
Page 24 of 35
Degree
Height
Remark
(cm)
FCC Part 15.247
Model: TVT280
Spurious Emissions Above 1GHz
Transmitting: BLE mode:
Frequency
Reading
Correct
Result
Limit
Margin
Polar
(MHz)
(dBuV/m)
dB
(dBuV/m)
(dBuV/m)
(dB)
H/V
Detector
Low Channel-2402MHz
4804
55.82
-3.59
52.23
74
-21.77
PK
4804
40.00
-3.59
36.41
54
-17.59
AV
7206
56.91
-0.52
56.39
74
-17.61
PK
7206
37.92
-0.52
37.40
54
-16.60
AV
4804
57.95
-3.59
54.36
74
-19.64
PK
4804
38.93
-3.59
35.34
54
-18.66
AV
7206
56.30
-0.52
55.78
74
-18.22
PK
7206
39.99
-0.52
39.47
54
-14.53
AV
Middle Channel-2442MHz
4884
57.95
-3.49
54.46
74
-19.54
PK
4884
38.54
-3.49
35.05
54
-18.95
AV
7326
55.74
-0.47
55.27
74
-18.73
PK
7326
39.75
-0.47
39.28
54
-14.72
AV
4884
56.30
-3.49
52.81
74
-21.19
PK
4884
38.04
-3.49
34.55
54
-19.45
AV
7326
55.20
-0.47
54.73
74
-19.27
PK
7326
38.76
-0.47
38.29
54
-15.71
AV
High Channel-2480MHz
4960
56.03
-3.41
52.62
74
-21.38
PK
4960
38.71
-3.41
35.30
54
-18.70
AV
7440
55.27
-0.42
54.85
74
-19.15
PK
7440
39.59
-0.42
39.17
54
-14.83
AV
4960
56.30
-3.41
52.89
74
-21.11
PK
4960
37.33
-3.41
33.92
54
-20.08
AV
7440
54.06
-0.42
53.64
74
-20.36
PK
7440
37.47
-0.42
37.05
54
-16.95
AV
Note: Testing is carried out with frequency rang 9kHz to the tenth harmonics, other than listed in the table above
are attenuated more than 20dB below the permissible limits or the field strength is too small to be measured.
Report No.: STR17048310I-3
Page 25 of 35
FCC Part 15.247
Model: TVT280
9. Out of Band Emissions
9.1 Standard Applicable
According to §15.247 (d) In any 100 kHz bandwidth outside the frequency band in which the spread spectrum or
digitally modulated intentional radiator is operating, the radio frequency power that is produced by the intentional
radiator shall be at least 20 dB below that in the 100 kHz bandwidth within the band that contains the highest level
of the desired power, based on either an RF conducted or a radiated measurement, provided the transmitter
demonstrates compliance with the peak conducted power limits. If the transmitter complies with the conducted
power limits based on the use of RMS averaging over a time interval, as permitted under paragraph (b)(3) of this
section, the attenuation required under this paragraph shall be 30 dB instead of 20 dB. 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).
9.2 Test Procedure
According to the KDB 558074 D01 v04, the band-edge radiated test method as follows:
Set span = wide enough to capture the peak level of the emission operating on the channel closest to the bandedge,
as well as any modulation products which fall outside of the authorized band of operation (2310MHz to 2420MHz
for low bandedge, 2460MHz to 2500MHz for the high bandedge)
RBW = 1MHz, VBW = 1MHz for peak value measured
RBW = 1MHz, VBW = 10Hz for average value measured
Sweep = auto; Detector function = peak/average; Trace = max hold
All the trace to stabilize, set the marker on the emission at the bandedge, or on the highest modulation product
outside of the band, if this level is greater than that at the bandedge. Enable the marker-delta function, then use the
marker-to-peak function to move the marker to the peak of the in-band emission. Those emission must comply
with the 15.209 limit for fall in the restricted bands listed in section 15.205. Note that the method of measurement
KDB publication number: 913591 may be used for the radiated bandedge measurements.
According to the KDB 558074 D01 v04, the conducted spurious emissions test method as follows:
1. Set start frequency to DTS channel edge frequency.
2. Set stop frequency so as to encompass the spectrum to be examined.
3. Set RBW = 100 kHz.
4. Set VBW ≥ 300 kHz.
5. Detector = peak.
6. Trace Mode = max hold.
7. Sweep = auto couple.
8. Allow the trace to stabilize (this may take some time, depending on the extent of the span).
9. Use peak marker function to determine maximum amplitude of all unwanted emissions within any 100 kHz
bandwidth.
Ensure that the amplitude of all unwanted emissions outside of the authorized frequency band (excluding
restricted frequency bands) are attenuated by at least the minimum requirements specified in section 8.1. Report
the three highest emissions relative to the limit.
Report No.: STR17048310I-3
Page 26 of 35
FCC Part 15.247
Model: TVT280
9.3 Environmental Conditions
Temperature:
23C
Relative Humidity:
54
ATM Pressure:
1011 mbar
9.4 Summary of Test Results/Plots
Restricted Bandedge (Radiated)
Lowest Bandedge-BLE
Horizontal (Worst case)
No.
Frequency
Reading
Correct
Result
Limit
Margin
(MHz)
(dBuV/m)
Factor(dB)
(dBuV/m)
(dBuV/m)
(dB)
2310.00
36.09
-3.26
32.83
54.00
-21.17
Average Detector
2310.00
48.40
-3.26
45.14
74.00
-28.86
Peak Detector
2390.00
36.28
-3.05
33.23
54.00
-20.77
Average Detector
2390.00
48.95
-3.05
45.90
74.00
-28.10
Peak Detector
Report No.: STR17048310I-3
Page 27 of 35
Remark
FCC Part 15.247
Model: TVT280
Highest Bandedge-BLE
Horizontal (Worst case)
No.
Frequency
Reading
Correct
Result
Limit
Margin
(MHz)
(dBuV/m)
dB/m
(dBuV/m)
(dBuV/m)
(dB)
2479.95
93.54
-2.81
90.73
Average Detector
2479.85
98.84
-2.81
96.03
Peak Detector
2483.50
55.31
-2.80
52.51
54.00
-1.49
Average Detector
2483.50
61.08
-2.80
58.28
74.00
-15.72
Peak Detector
2500.00
35.82
-2.75
33.07
54.00
-20.93
Average Detector
2500.00
48.74
-2.75
45.99
74.00
-28.01
Peak Detector
Report No.: STR17048310I-3
Page 28 of 35
Remark
FCC Part 15.247
Model: TVT280
Out of Bandedge and Spurious Emission (Conducted)
Lowest
Report No.: STR17048310I-3
Page 29 of 35
FCC Part 15.247
Model: TVT280
Middle Channel:
Report No.: STR17048310I-3
Page 30 of 35
FCC Part 15.247
Model: TVT280
High Channel:
Report No.: STR17048310I-3
Page 31 of 35
FCC Part 15.247
Model: TVT280
10. Conducted Emissions
10.1 Test Procedure
The setup of EUT is according with per ANSI C63.4-2014 measurement procedure. The specification used was
with the FCC Part 15.207 Limit.
The external I/O cables were draped along the test table and formed a bundle 30 to 40 cm long in the middle.
The spacing between the peripherals was 10 cm.
10.2 Basic Test Setup Block Diagram
Adapter
EUT
LISN
1.0 m
To Receiver
Non-conduction table
1.5
80 cm above Ground
Plane
1. 5 m
10.3 Environmental Conditions
Temperature:
25 C
Relative Humidity:
52
ATM Pressure:
1012 mbar
Report No.: STR17048310I-3
Page 32 of 35
FCC Part 15.247
Model: TVT280
10.4 Test Receiver Setup
During the conducted emission test, the test receiver was set with the following configurations:
Start Frequency .......................................................................... 150 kHz
Stop Frequency........................................................................... 30 MHz
Sweep Speed .............................................................................. Auto
IF Bandwidth.............................................................................. 10 kHz
Quasi-Peak Adapter Bandwidth ................................................. 9 kHz
Quasi-Peak Adapter Mode ......................................................... Normal
10.5 Summary of Test Results/Plots
According to the data in section 10.6, the EUT complied with the FCC Part 15.207 Conducted margin for this
device, with the worst margin reading of:
-2.31 dB at 0.7540 MHz in the Line, QP detector, 0.15-30MHz
10.6 Conducted Emissions Test Data
Report No.: STR17048310I-3
Page 33 of 35
FCC Part 15.247
Model: TVT280
Plot of Conducted Emissions Test Data
EUT:
Visual IR Thermometer
Tested Model:
TVT280
Operating Condition:
Transmitting
Comment:
AC 120V/60Hz, Adapter DC 5V
Test Specification:
No.
Neutral
Frequency
Reading
Correct
Result
Limit
Margin
(MHz)
(dBuV)
(dB/m)
(dBuV)
(dBuV)
(dB)
0.4940
24.07
9.80
33.87
46.10
-12.23
AVG
2*
0.6060
39.81
9.79
49.60
56.00
-6.40
QP
0.7380
22.71
9.78
32.49
46.00
-13.51
AVG
0.8100
39.74
9.78
49.52
56.00
-6.48
QP
2.3340
16.10
9.73
25.83
46.00
-20.17
AVG
2.3980
33.56
9.73
43.29
56.00
-12.71
QP
Report No.: STR17048310I-3
Page 34 of 35
Detector
FCC Part 15.247
Model: TVT280
Test Specification:
No.
Line
Frequency
Reading
Correct
Result
Limit
Margin
Detector
(MHz)
(dBuV)
(dB/m)
(dBuV)
(dBuV)
(dB)
0.6020
43.65
9.79
53.44
56.00
-2.56
QP
0.6020
25.65
9.79
35.44
46.00
-10.56
AVG
0.7500
26.02
9.78
35.80
46.00
-10.20
AVG
4*
0.7540
43.91
9.78
53.69
56.00
-2.31
QP
2.3580
37.31
9.73
47.04
56.00
-8.96
QP
2.3580
18.27
9.73
28.00
46.00
-18.00
AVG
***** END OF REPORT *****
Report No.: STR17048310I-3
Page 35 of 35
FCC Part 15.247
Download: TVT280 Visual IR Thermometer Test Report FCC Part 15.247B_BLE Intrinity Global Limited.
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