MSS425 Smart Wi-Fi Surge Protector Test Report RF Chengdu Meross Technology Co., Ltd.

Chengdu Meross Technology Co., Ltd. Smart Wi-Fi Surge Protector

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
FCC TEST REPORT
For
Chengdu Meross Technology Co., Ltd.
Smart Wi-Fi Surge Protector
Model No.: MSS425
Additional Model No.: /
Prepared for
Address
Chengdu Meross Technology Co., Ltd.
No.1935, Floor 19, Unit 1, Building 7 No.1700 of Tianfu Avenue
North, Gaoxin, Chengdu, China
Prepared by
Address
Tel
Fax
Web
Mail
Shenzhen LCS Compliance Testing Laboratory Ltd.
1/F., Xingyuan Industrial Park, Tongda Road, Bao'an Avenue, Bao'an
District, Shenzhen, Guangdong, China
(+86)755-82591330
(+86)755-82591332
www.LCS-cert.com
webmaster@LCS-cert.com
Date of receipt of test sample
Number of tested samples
Serial number
Date of Test
Date of Report
Dec 12, 2017
Prototype
Dec 12, 2017~Dec 26, 2017
Dec 26, 2017
This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.
Page 1 of 50
SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
FCC TEST REPORT
FCC CFR 47 PART 15 C(15.247)
Report Reference No. ................. : LCS171208057AEA
Date of Issue ................................... : Dec 26, 2017
Testing Laboratory Name............. : Shenzhen LCS Compliance Testing Laboratory Ltd.
Address ........................................... : 1/F., Xingyuan Industrial Park, Tongda Road, Bao'an Avenue,
Bao'an District, Shenzhen, Guangdong, China
Testing Location/ Procedure ........... : Full application of Harmonised standards ■
Partial application of Harmonised standards □
Other standard testing method □
Applicant’s Name .......................... : Chengdu Meross Technology Co., Ltd.
Address ........................................... : No.1935, Floor 19, Unit 1, Building 7 No.1700 of Tianfu Avenue
North, Gaoxin, Chengdu, China
Test Specification
Standard .......................................... : FCC CFR 47 PART 15 C(15.247)
Test Report Form No. ................... : LCSEMC-1.0
TRF Originator ................................ : Shenzhen LCS Compliance Testing Laboratory Ltd.
Master TRF ..................................... : Dated 2011-03
Shenzhen LCS Compliance Testing Laboratory Ltd. All rights reserved.
This publication may be reproduced in whole or in part for non-commercial purposes as long as the
Shenzhen LCS Compliance Testing Laboratory Ltd. is acknowledged as copyright owner and source of the
material. Shenzhen LCS Compliance Testing Laboratory Ltd. takes no responsibility for and will not
assume liability for damages resulting from the reader's interpretation of the reproduced material due to its
placement and context.
EUT Description. ........................... : Smart Wi-Fi Surge Protector
Trade Mark ...................................... : meross
Model/ Type reference .................... : MSS425
Ratings ............................................ : Input:100~240VAC, 50/60Hz, 15A Max
Output:DC 5V/2.1A for each USB port
Result ............................................ : Positive
Compiled by:
Supervised by:
Approved by:
Calvin Weng/ Administrators
Dick Su/ Technique principal
Gavin Liang/ Manager
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
FCC -- TEST REPORT
Test Report No. :
LCS171208057AEA
Dec 26, 2017
Date of issue
EUT.........................................
: Smart Wi-Fi Surge Protector
Type / Model...........................
: MSS425
Applicant...............................
Address..................................
Telephone...............................
Fax..........................................
: Chengdu Meross Technology Co., Ltd.
: No.1935, Floor 19, Unit 1, Building 7 No.1700 of Tianfu Avenue
North, Gaoxin, Chengdu, China
Manufacturer 1........................
Address...................................
Telephone...............................
Fax..........................................
: Chengdu Xuguang Technology Co., Ltd.
: No.2, Park Road, Longquanyi, Chengdu, China
Manufacturer 2........................ : Shenzhen Xinyixin Technology Co., Ltd.
Address................................... : 1st Floor, Building A17, Fuqiao 3rd Industrial Zone, Qiaotou,
Fuyong, Baoan, Shenzhen, China
Telephone............................... :
Fax.......................................... :
Factory...................................
Address...................................
Telephone...............................
Fax..........................................
Test Result
: Chengdu Meross Technology Co., Ltd.
: No.1935, Floor 19, Unit 1, Building 7 No.1700 of Tianfu Avenue
North, Gaoxin, Chengdu, China
Positive
The test report merely corresponds to the test sample.
It is not permitted to copy extracts of these test result without the written permission of the test laboratory.
This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
Revision History
Revision
Issue Date
Revisions
Revised By
000
Dec 26, 2017
Initial Issue
Gavin Liang
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
TABLE OF CONTENTS
1. GENERAL INFORMATION ................................................................................................................................... 6
1.1. DESCRIPTION OF DEVICE (EUT) ........................................................................................................................ 6
1.2. HOST SYSTEM CONFIGURATION LIST AND DETAILS .......................................................................................... 6
1.3. EXTERNAL I/O CABLE ......................................................................................................................................... 7
1.4. DESCRIPTION OF TEST FACILITY ........................................................................................................................ 7
1.5. STATEMENT OF THE MEASUREMENT UNCERTAINTY .......................................................................................... 7
1.6. MEASUREMENT UNCERTAINTY ........................................................................................................................... 7
1.7. DESCRIPTION OF TEST MODES .......................................................................................................................... 8
2. TEST METHODOLOGY ......................................................................................................................................... 9
2.1. EUT CONFIGURATION ........................................................................................................................................ 9
2.2. EUT EXERCISE ................................................................................................................................................... 9
2.3. GENERAL TEST PROCEDURES ........................................................................................................................... 9
3. SYSTEM TEST CONFIGURATION .................................................................................................................... 10
3.1. JUSTIFICATION .................................................................................................................................................. 10
3.2. EUT EXERCISE SOFTWARE .............................................................................................................................. 10
3.3. SPECIAL ACCESSORIES .................................................................................................................................... 10
3.4. BLOCK DIAGRAM/SCHEMATICS......................................................................................................................... 10
3.5. EQUIPMENT MODIFICATIONS ............................................................................................................................ 10
3.6. TEST SETUP ...................................................................................................................................................... 10
4. SUMMARY OF TEST RESULTS ........................................................................................................................ 11
5. TEST RESULT ....................................................................................................................................................... 12
5.1. ON TIME AND DUTY CYCLE .............................................................................................................................. 12
5.2. MAXIMUM CONDUCTED OUTPUT POWER MEASUREMENT............................................................................... 14
5.3. POWER SPECTRAL DENSITY MEASUREMENT .................................................................................................. 16
5.4. 6 DB SPECTRUM BANDWIDTH MEASUREMENT ................................................................................................ 20
5.5. RADIATED EMISSIONS MEASUREMENT............................................................................................................. 24
5.6. CONDUCTED SPURIOUS EMISSIONS AND BAND EDGES TEST ......................................................................... 35
5.7. POWER LINE CONDUCTED EMISSIONS .............................................................................................................. 41
5.8. RESTRICT-BAND BAND-EDGE MEASUREMENTS FOR RADIATED EMISSIONS ..................................................... 43
5.9. ANTENNA REQUIREMENTS ................................................................................................................................ 48
6. LIST OF MEASURING EQUIPMENTS .............................................................................................................. 49
7. TEST SETUP PHOTOGRAPHS OF EUT .......................................................................................................... 50
8. EXTERIOR PHOTOGRAPHS OF THE EUT ..................................................................................................... 50
9. INTERIOR PHOTOGRAPHS OF THE EUT ...................................................................................................... 50
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
1. GENERAL INFORMATION
1.1. Description of Device (EUT)
EUT
: Smart Wi-Fi Surge Protector
Test Model
: MSS425
Power Supply
: Input:100~240VAC, 50/60Hz, 15A Max
Output:DC 5V/2.1A for each USB port
Hardware Version
: N/A
Software Version
: N/A
WIFI(2.4G Band)
Frequency Range
: 2412-2462MHz
Channel Spacing
: 5MHz
Channel Number
Modulation Type
: 802.11b: DSSS; 802.11g/n: OFDM
Antenna Description
: Internal Antenna, 1.5dBi(Max.)
11 Channel for 20MHz bandwidth(2412~2462MHz)
1.2. Host System Configuration List and Details
Manufacturer
Description
Model
Serial Number
Certificate
---
---
---
---
---
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FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
1.3. External I/O Cable
I/O Port Description
Quantity
Cable
USB Port
N/A
1.4. Description of Test Facility
NvLap accreditation designation number: CN5024.
FCC Registration Number is 254912.
Industry Canada Registration Number is 9642A-1.
ESMD Registration Number is ARCB0108.
UL Registration Number is 100571-492.
TUV SUD Registration Number is SCN1081.
TUV RH Registration Number is UA 50296516-001
The 3m-Semi anechoic test site fulfils CISPR 16-1-4 according to ANSI C63.4:2014 and CISPR
16-1-4:2010 SVSWR requirement for radiated emission above 1GHz.
1.5. Statement of the Measurement Uncertainty
The data and results referenced in this document are true and accurate. The reader is cautioned that
there may be errors within the calibration limits of the equipment and facilities. The measurement
uncertainty was calculated for all measurements listed in this test report acc. To CISPR 16 – 4
“Specification for radio disturbance and immunity measuring apparatus and methods – Part 4: Uncertainty
in EMC Measurements” and is documented in the LCS quality system acc. to DIN EN ISO/IEC 17025.
Furthermore, component and process variability of devices similar to that tested may result in additional
deviation. The manufacturer has the sole responsibility of continued compliance of the device.
1.6. Measurement Uncertainty
Test Item
Radiation Uncertainty
Conduction Uncertainty :
Power disturbance
Frequency Range
Uncertainty
Note
9KHz~30MHz
±3.10dB
(1)
30MHz~200MHz
±2.96dB
(1)
200MHz~1000MHz
±3.10dB
(1)
1GHz~26GHz
±3.80dB
(1)
26GHz~40GHz
±3.90dB
(1)
150kHz~30MHz
±1.63dB
(1)
30MHz~300MHz
±1.60dB
(1)
(1) This uncertainty represents an expanded uncertainty expressed at approximately the 95% confidence
level using a coverage factor of k=2.
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FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
1.7. Description of Test Modes
The EUT has been tested under operating condition.
This test was performed with EUT in X, Y, Z position and the worst case was found when EUT in X
position.
Worst-case mode and channel used for 150 KHz-30 MHz power line conducted emissions was the mode
and channel with the highest output power that was determined to be IEEE 802.11b mode (Low Channel).
AC conducted emission pre-test at both at AC 120V/60Hz and AC 240V/50Hz modes, recorded worst
case;
Worst-case mode and channel used for 9 KHz-1000 MHz radiated emissions was the mode and channel
with the highest output power that was determined to be IEEE 802.11b mode (Low Channel).
Worst-Case data rates were utilized from preliminary testing of the Chipset, worst-case data rates used
during the testing are as follows:
IEEE 802.11b Mode: 1 Mbps, DSSS.
IEEE 802.11g Mode: 6 Mbps, OFDM.
IEEE 802.11n Mode HT20: MCS0, OFDM.
Channel List & Frequency
IEEE 802.11b/g/n HT20
Frequency Band
2412~2462MHz
Channel No.
Frequency(MHz)
2412
2417
2422
2427
2432
2437
Channel No.
10
11
--
Frequency(MHz)
2442
2447
2452
2457
2462
--
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
2. TEST METHODOLOGY
All measurements contained in this report were conducted with ANSI C63.10-2013, American National
Standard of Procedures for Compliance Testing of Unlicensed Wireless Devices.
The radiated testing was performed at an antenna-to-EUT distance of 3 meters. All radiated and
conducted emissions measurement was performed at Shenzhen LCS Compliance Testing Laboratory Ltd.
2.1. EUT Configuration
The EUT configuration for testing is installed on RF field strength measurement to meet the Commissions
requirement and operating in a manner that intends to maximize its emission characteristics in a
continuous normal application.
2.2. EUT Exercise
The EUT was operated in the engineering mode to fix the TX frequency that was for the purpose of the
measurements.
According to FCC’s request, Test Procedure KDB558074 D01 DTS Meas. Guidance v04 and KDB
662911 are required to be used for this kind of FCC 15.247 digital modulation device.
According to its specifications, the EUT must comply with the requirements of the Section 15.203, 15.205,
15.207, 15.209 and 15.247 under the FCC Rules Part 15 Subpart C.
2.3. General Test Procedures
2.3.1 Conducted Emissions
The EUT is placed on the turntable, which is 0.8 m above ground plane. According to the requirements in
Section 6.2.1 of ANSI C63.10-2013 Conducted emissions from the EUT measured in the frequency range
between 0.15 MHz and 30MHz using Quasi-peak and average detector modes.
2.3.2 Radiated Emissions
The EUT is placed on a turn table, which is 0.8 m above ground plane. The turntable shall rotate 360
degrees to determine the position of maximum emission level. EUT is set 3m away from the receiving
antenna, which varied from 1m to 4m to find out the highest emission. And also, each emission was to be
maximized by changing the polarization of receiving antenna both horizontal and vertical. In order to find
out the maximum emissions, exploratory radiated emission measurements were made according to the
requirements in Section 6.3 of ANSI C63.10-2013
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FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
3. SYSTEM TEST CONFIGURATION
3.1. Justification
The system was configured for testing in a continuous transmits condition.
3.2. EUT Exercise Software
The sample will be controlled by QATool.exe to enter Wi-Fi RF test mode to control sample change
channel, modulation and so on;
3.3. Special Accessories
No.
Equipment
Manufacturer
Model No.
Serial No.
Length
---
---
---
---
---
shielded/
unshielded
---
Notes
---
3.4. Block Diagram/Schematics
Please refer to the related document
3.5. Equipment Modifications
Shenzhen LCS Compliance Testing Laboratory Ltd. has not done any modification on the EUT.
3.6. Test Setup
Please refer to the test setup photo.
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
4. SUMMARY OF TEST RESULTS
FCC Rules
§15.247(b)
Applied Standard: FCC Part 15 Subpart C
Description of Test
Maximum Conducted Output Power
Result
Compliant
§15.247(e)
Power Spectral Density
Compliant
§15.247(a)(2)
6dB Bandwidth
Compliant
§15.247(a)
Occupied Bandwidth
Compliant
§15.209, §15.247(d)
Radiated and Conducted Spurious Emissions
Compliant
§15.205
Emissions at Restricted Band
Compliant
§15.207(a)
Conducted Emissions
Compliant
§15.203
Antenna Requirements
Compliant
§15.247(i)§2.1093
RF Exposure
Compliant
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FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
5. TEST RESULT
5.1. On Time and Duty Cycle
5.1.1. Standard Applicable
None; for reporting purpose only.
5.1.2. Measuring Instruments and Setting
Please refer to section 6 of equipment list in this report. The following table is the setting of the spectrum
analyzer.
5.1.3. Test Procedures
1. Set the centre frequency of the spectrum analyzer to the transmitting frequency;
2. Set the span=0MHz, RBW=8MHz, VBW=50MHz, Sweep time=5ms;
3. Detector = peak;
4. Trace mode = Single hold.
5.1.4. Test Setup Layout
5.1.5. EUT Operation during Test
The EUT was programmed to be in continuously transmitting mode.
5.1.6. Test result
IEEE 802.11b
On Time
(ms)
IEEE 802.11g
100
IEEE 802.11n-HT20
100
Mode
Duty
Cycle
(%)
100
Duty Cycle
Correction
Factor (dB)
Period
(ms)
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
On Time and Duty Cycle
IEEE 802.11b
IEEE 802.11g
IEEE 802.11n-HT20
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
5.2. Maximum Conducted Output Power Measurement
5.2.1. Standard Applicable
According to §15.247(b): For systems using digital modulation in the 2400-2483.5 MHz and 5725-5850
MHz band, the limit for maximum peak conducted output power is 30dBm. The limited has to be reduced
by the amount in dB that the gain of the antenna exceeds 6dBi. In case of point-to-point operation, the
limit has to be reduced by 1dB for every 3dB that the directional gain of the antenna exceeds 6dBi.
Systems operating in the 5725-5850 MHz band that are used exclusively for fixed, point-to-point
operations may employ transmitting antennas with directional gain greater than 6dBi without any
corresponding reduction in transmitter peak output power.
5.2.2. Measuring Instruments and Setting
Please refer to section 6 of equipment list in this report. The following table is the setting of the power
meter.
5.2.3. Test Procedures
According to KDB558074 D01 DTS Measurement Guidance Section 9.1 Maximum peak conducted output
power, 9.1.2 the maximum peak conducted output power may be measured using a broadband peak RF
power meter. The power meter shall have a video bandwidth that is greater than or equal to the DTS
bandwidth and shall utilize a fast-responding diode detector.
According to KDB558074 D01 DTS Measurement Guidance Section 9.2 Maximum average conducted
output power, 9.2.3.1 Method AVGPM (Measurement using an RF average power meter)
(a) As an alternative to spectrum analyzer or EMI receiver measurements, measurements may be
performed using a wideband RF power meter with a thermocouple detector or equivalent if all of the
conditions listed below are satisfied.
1) The EUT is configured to transmit continuously, or to transmit with a constant duty factor.
2) At all times when the EUT is transmitting, it shall be transmitting at its maximum power control level.
3) The integration period of the power meter exceeds the repetition period of the transmitted signal by at
least a factor of five.
(b) If the transmitter does not transmit continuously, measure the duty cycle (x) of the transmitter
output signal as described in Section 6.0.
(c) Measure the average power of the transmitter. This measurement is an average over both the on
and off periods of the transmitter.
(d) Adjust the measurement in dBm by adding 10log (1/x), where x is the duty cycle to the
measurement result.
5.2.4. Test Setup Layout
5.2.5. EUT Operation during Test
The EUT was programmed to be in continuously transmitting mode.
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
5.2.6. Test Result of Maximum Conducted Output Power
Temperature
25℃
Humidity
60%
Test Engineer
Jayden Zhuo
Configurations
IEEE 802.11b/g/n
Test Mode
IEEE 802.11b
IEEE 802.11g
IEEE 802.11n
HT20
Channel
Frequency
(MHz)
11
11
11
2412
2437
2462
2412
2437
2462
2412
2437
2462
Measured
Peak Output
Power
(dBm)
22.97
22.09
22.81
20.56
20.61
20.54
21.88
21.62
21.17
Limits
(dBm)
Verdict
30
PASS
30
PASS
30
PASS
Remark:
1. Measured output power at difference data rate for each mode and recorded worst case for each mode.
2. Test results including cable loss;
3. Worst case data at 1Mbps at IEEE 802.11b; 6Mbps at IEEE 802.11g; 6.5Mbps at IEEE 802.11n HT20;
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FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
5.3. Power Spectral Density Measurement
5.3.1. Standard Applicable
According to §15.247(e): 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.
5.3.2. Measuring Instruments and Setting
Please refer to section 6 of equipment list in this report. The following table is the setting of Spectrum
Analyzer.
5.3.3. Test Procedures
1. The transmitter was connected directly to a Spectrum Analyzer.
2. The power was monitored at the coupler port with a Spectrum Analyzer. The power level was set to the
maximum level.
3. Set the RBW = 3 KHz~100 KHz.(here we set it 30KHz for Wi-Fi)
4. Set the VBW ≥ 3*RBW
5. Set the span to 1.5 times the DTS channel bandwidth.
6. Detector = peak.
7. Sweep time = auto couple.
8. Trace mode = max hold.
9. Allow trace to fully stabilize.
10. Use the peak marker function to determine the maximum power level in any 3 kHz band segment
within the fundamental EBW.
11. If measured value exceeds limit, reduce RBW (no less than 3 kHz) and repeat.
5.3.4. Test Setup Layout
5.3.5. EUT Operation during Test
The EUT was programmed to be in continuously transmitting mode.
5.3.6. Test Result of Power Spectral Density
Temperature
25℃
Humidity
60%
Test Engineer
Jayden Zhuo
Configurations
IEEE 802.11b/g/n
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Page 16 of 50
SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
Test Mode
IEEE 802.11b
IEEE 802.11g
IEEE 802.11n
HT20
Channel
Frequency
(MHz)
11
11
11
2412
2437
2462
2412
2437
2462
2412
2437
2462
FCC ID:2AMUU-MSS425
Measured Peak Power
Spectral Density
(dBm/30KHz)
-1.062
-0.979
-1.255
-3.858
-4.123
-4.921
-3.291
-3.329
-3.724
Report No.: LCS171208057AEA
Limits
(dBm/3KHz)
Verdict
PASS
PASS
PASS
Remark:
1. Measured peak power spectrum density at difference data rate for each mode and recorded worst case for
each mode.
2. Test results including cable loss;
3. Worst case data at 1Mbps at IEEE 802.11b; 6Mbps at IEEE 802.11g; 6.5Mbps at IEEE 802.11n HT20;
4. Please refer to following plots;
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
Power Spectral Density
IEEE 802.11b
IEEE 802.11g
Channel 1 / 2412 MHz
Channel 1 / 2412 MHz
Channel 6 / 2437 MHz
Channel 6 / 2437 MHz
Channel 11 / 2462 MHz
Channel 11 / 2462 MHz
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
Power Spectral Density
IEEE 802.11n HT20
Channel 1 / 2412 MHz
Channel 6 / 2437 MHz
Channel 11 / 2462 MHz
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
5.4. 6 dB Spectrum Bandwidth Measurement
5.4.1. Standard Applicable
According to §15.247(a) (2): For digital modulation systems, the minimum 6 dB bandwidth shall be at least
500 KHz.
5.4.2. Measuring Instruments and Setting
Please refer to section 6 of equipment’s list in this report. The following table is the setting of the Spectrum
Analyzer.
Spectrum Parameter
Setting
Attenuation
Auto
Span Frequency
> RBW
Detector
Peak
Trace
Max Hold
Sweep Time
100ms
5.4.3. Test Procedures
1. The transmitter output (antenna port) was connected to the spectrum analyzer in peak hold mode.
2. The resolution bandwidth and the video bandwidth were set according to KDB558074.
3. Measured the spectrum width with power higher than 6dB below carrier.
5.4.4. Test Setup Layout
5.4.5. EUT Operation during Test
The EUT was programmed to be in continuously transmitting mode.
5.4.6. Test Result of 6dB Spectrum Bandwidth
Temperature
25℃
Humidity
60%
Test Engineer
Jayden Zhuo
Configurations
IEEE 802.11b/g/n
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
Test Mode
IEEE 802.11b
IEEE 802.11g
IEEE 802.11n
HT20
Channel
11
11
11
Frequency
(MHz)
2412
2437
2462
2412
2437
2462
2412
2437
2462
FCC ID:2AMUU-MSS425
6dB Bandwidth
(MHz)
9.164
9.165
9.163
16.43
16.40
16.40
17.62
17.61
17.63
Report No.: LCS171208057AEA
Limits
(MHz)
Verdict
0.500
PASS
0.500
PASS
0.500
PASS
Remark:
1. Measured 6dB Bandwidth at difference data rate for each mode and recorded worst case for each mode.
2. Test results including cable loss;
3. Worst case data at 1Mbps at IEEE 802.11b; 6Mbps at IEEE 802.11g; 6.5Mbps at IEEE 802.11n HT20;
13.5Mbps at IEEE 802.11n HT40
4. Please refer to following plots;
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
6 dB Bandwidth
IEEE 802.11b
IEEE 802.11g
Channel 1 / 2412 MHz
Channel 1 / 2412 MHz
Channel 6 / 2437 MHz
Channel 6 / 2437 MHz
Channel 11 / 2462 MHz
Channel 11 / 2462 MHz
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
6 dB Bandwidth
IEEE 802.11n HT20
Channel 1 / 2412 MHz
Channel 6 / 2437 MHz
Channel 11 / 2462 MHz
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Page 23 of 50
SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
5.5. Radiated Emissions Measurement
5.5.1. Standard Applicable
15.205 (a) Except as shown in paragraph (d) of this section, only spurious emissions are permitted in any
of the frequency bands listed below:
MHz
0.090-0.110
\1\ 0.495-0.505
2.1735-2.1905
4.125-4.128
4.17725-4.17775
4.20725-4.20775
6.215-6.218
6.26775-6.26825
6.31175-6.31225
8.291-8.294
8.362-8.366
8.37625-8.38675
8.41425-8.41475
12.29-12.293.
12.51975-12.52025
12.57675-12.57725
13.36-13.41
MHz
MHz
16.42-16.423
16.69475-16.69525
16.80425-16.80475
25.5-25.67
37.5-38.25
73-74.6
74.8-75.2
108-121.94
123-138
149.9-150.05
156.52475-156.52525
156.7-156.9
162.0125-167.17
167.72-173.2
240-285
322-335.4
399.9-410
608-614
960-1240
1300-1427
1435-1626
1645.5-1646.5
1660-1710
1718.8-1722.2
2200-2300
2310-2390
2483.5-2500
2690-2900
3260-3267
3332-3339
3345.8-3358
3600-4400
GHz
4.5-5.15
5.35-5.46
7.25-7.75
8.025-8.5
9.0-9.2
9.3-9.5
10.6-12.7
13.25-13.4
14.47-14.5
15.35-16.2
17.7-21.4
22.01-23.12
23.6-24.0
31.2-31.8
36.43-36.5
(\2\)
\1\ Until February 1, 1999, this restricted band shall be 0.490-0.510 MHz.
\2\ Above 38.6
According to §15.247 (d): 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.
Frequencies
(MHz)
0.009~0.490
0.490~1.705
1.705~30.0
30~88
88~216
216~960
Above 960
Field Strength
(microvolts/meter)
2400/F(KHz)
24000/F(KHz)
30
100
150
200
500
Measurement Distance
(meters)
300
30
30
5.5.2. Measuring Instruments and Setting
Please refer to section 6 of equipment list in this report. The following table is the setting of spectrum
analyzer and receiver.
Spectrum Parameter
Attenuation
Start Frequency
Stop Frequency
RB / VB (Emission in restricted band)
RB / VB (Emission in non-restricted band)
Receiver Parameter
Attenuation
Start ~ Stop Frequency
Start ~ Stop Frequency
Start ~ Stop Frequency
Setting
Auto
1000 MHz
10th carrier harmonic
1MHz / 1MHz for Peak, 1 MHz / 1/B kHz for Average
1MHz / 1MHz for Peak, 1 MHz / 1/B kHz for Average
Setting
Auto
9kHz~150kHz / RB/VB 200Hz/1KHz for QP/AVG
150kHz~30MHz / RB/VB 9kHz/30KHz for QP/AVG
30MHz~1000MHz / RB/VB 120kHz/1MHz for QP
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
5.5.3. Test Procedures
1) Sequence of testing 9 kHz to 30 MHz
Setup:
--- The equipment was set up to simulate a typical usage like described in the user manual or described by
manufacturer.
--- If the EUT is a tabletop system, a rotatable table with 0.8 m height is used.
--- If the EUT is a floor standing device, it is placed on the ground.
--- Auxiliary equipment and cables were positioned to simulate normal operation conditions.
--- The AC power port of the EUT (if available) is connected to a power outlet below the turntable.
--- The measurement distance is 3 meter.
--- The EUT was set into operation.
Premeasurement:
--- The turntable rotates from 0° to 315° using 45° steps.
--- The antenna height is 0.8 meter.
--- At each turntable position the analyzer sweeps with peak detection to find the maximum of all
emissions
Final measurement:
--- Identified emissions during the premeasurement the software maximizes by rotating the turntable
position (0° to 360°) and by rotating the elevation axes (0° to 360°).
--- The final measurement will be done in the position (turntable and elevation) causing the highest
emissions with QPK detector.
--- The final levels, frequency, measuring time, bandwidth, turntable position, correction factor, margin to
the limit and limit will be recorded. Also a plot with the graph of the premeasurement and the limit will be
stored.
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FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
2) Sequence of testing 30 MHz to 1 GHz
Setup:
--- The equipment was set up to simulate a typical usage like described in the user manual or described by
manufacturer.
--- If the EUT is a tabletop system, a table with 0.8 m height is used, which is placed on the ground plane.
--- If the EUT is a floor standing device, it is placed on the ground plane with insulation between both.
--- Auxiliary equipment and cables were positioned to simulate normal operation conditions
--- The AC power port of the EUT (if available) is connected to a power outlet below the turntable.
--- The measurement distance is 3 meter.
--- The EUT was set into operation.
Premeasurement:
--- The turntable rotates from 0° to 315° using 45° steps.
--- The antenna is polarized vertical and horizontal.
--- The antenna height changes from 1 to 3 meter.
--- At each turntable position, antenna polarization and height the analyzer sweeps three times in peak to
find the maximum of all emissions.
Final measurement:
--- The final measurement will be performed with minimum the six highest peaks.
--- According to the maximum antenna and turntable positions of premeasurement the software maximize
the peaks by changing turntable position (± 45°) and antenna movement between 1 and 4 meter.
--- The final measurement will be done with QP detector with an EMI receiver.
--- The final levels, frequency, measuring time, bandwidth, antenna height, antenna polarization, turntable
angle, correction factor, margin to the limit and limit will be recorded. Also a plot with the graph of the
premeasurement with marked maximum final measurements and the limit will be stored.
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Page 26 of 50
SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
3) Sequence of testing 1 GHz to 18 GHz
Setup:
--- The equipment was set up to simulate a typical usage like described in the user manual or described by
manufacturer.
--- If the EUT is a tabletop system, a rotatable table with 1.5 m height is used.
--- If the EUT is a floor standing device, it is placed on the ground plane with insulation between both.
--- Auxiliary equipment and cables were positioned to simulate normal operation conditions
--- The AC power port of the EUT (if available) is connected to a power outlet below the turntable.
--- The measurement distance is 3 meter.
--- The EUT was set into operation.
Premeasurement:
--- The turntable rotates from 0° to 315° using 45° steps.
--- The antenna is polarized vertical and horizontal.
--- The antenna height scan range is 1 meter to 2.5 meter.
--- At each turntable position and antenna polarization the analyzer sweeps with peak detection to find the
maximum of all emissions.
Final measurement:
--- The final measurement will be performed with minimum the six highest peaks.
--- According to the maximum antenna and turntable positions of premeasurement the software maximize
the peaks by changing turntable position (± 45°) and antenna movement between 1 and 4 meter. This
procedure is repeated for both antenna polarizations.
--- The final measurement will be done in the position (turntable, EUT-table and antenna polarization)
causing the highest emissions with Peak and Average detector.
--- The final levels, frequency, measuring time, bandwidth, turntable position, EUT-table position, antenna
polarization, correction factor, margin to the limit and limit will be recorded. Also a plot with the graph of
the premeasurement with marked maximum final measurements and the limit will be stored.
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Page 27 of 50
SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
4) Sequence of testing above 18 GHz
Setup:
--- The equipment was set up to simulate a typical usage like described in the user manual or described by
manufacturer.
--- If the EUT is a tabletop system, a rotatable table with 1.5 m height is used.
--- If the EUT is a floor standing device, it is placed on the ground plane with insulation between both.
--- Auxiliary equipment and cables were positioned to simulate normal operation conditions
--- The AC power port of the EUT (if available) is connected to a power outlet below the turntable.
--- The measurement distance is 1 meter.
--- The EUT was set into operation.
Premeasurement:
--- The antenna is moved spherical over the EUT in different polarizations of the antenna.
Final measurement:
--- The final measurement will be performed at the position and antenna orientation for all detected
emissions that were found during the premeasurements with Peak and Average detector.
--- The final levels, frequency, measuring time, bandwidth, correction factor, margin to the limit and limit
will be recorded. Also a plot with the graph of the premeasurement and the limit will be stored.
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
5.5.4. Test Setup Layout
Above 18 GHz shall be extrapolated to the specified distance using an extrapolation factor of 20
dB/decade form 3m to 1m.
Distance extrapolation factor = 20 log (specific distanc [3m] / test distance [1m]) (dB);
Limit line = specific limits (dBuV) + distance extrapolation factor [6 dB].
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
5.5.5. EUT Operation during Test
The EUT was programmed to be in continuously transmitting mode.
5.5.6. Results of Radiated Emissions (9 KHz~30MHz)
Temperature
25℃
Humidity
60%
Test Engineer
Jayden Zhuo
Configurations
IEEE 802.11b/g/n
Freq.
(MHz)
Level
(dBuV)
Over Limit
(dB)
Over Limit
(dBuV)
Remark
See Note
Note:
The amplitude of spurious emissions which are attenuated by more than 20 dB below the permissible
value has no need to be reported.
Distance extrapolation factor = 40 log (specific distance / test distance) (dB);
Limit line = specific limits (dBuV) + distance extrapolation factor.
5.5.7. Results of Radiated Emissions (30MHz~1GHz)
Temperature
25℃
Humidity
60%
Test Engineer
Jayden Zhuo
Configurations
IEEE 802.11b (Low CH)
Vertical:
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
Horizontal:
Note:
1). Pre-scan all modes and recorded the worst case results in this report (IEEE 802.11b (Low Channel)).
Emission level (dBuV/m) = 20 log Emission level (uV/m).
2). Corrected Reading: Antenna Factor + Cable Loss + Read Level = Level.
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
5.5.8. Results for Radiated Emissions (Above 1GHz)
IEEE 802.11b
Channel 1 / 2412MHz
53.38
Ant.
Fac.
dB/m
33.06
Pre.
Fac.
dB
35.14
Cab.
Loss
dB
3.98
4824.00
40.39
33.06
35.14
4824.00
60.40
33.06
4824.00
41.13
33.06
Freq.
MHz
Reading
dBuV
4824.00
Measured
dBuV/m
Limit
dBuV/m
Margin
dB
Remark
Pol.
55.28
74.00
-18.72
Peak
Horizontal
3.98
42.29
54.00
-11.71
Average
Horizontal
35.14
3.98
62.30
74.00
-11.70
Peak
Vertical
35.14
3.98
43.03
54.00
-10.97
Average
Vertical
Pre.
Fac.
dB
35.15
Cab.
Loss
dB
3.96
Measured
dBuV/m
Limit
dBuV/m
Margin
dB
Remark
Pol.
55.53
74.00
-18.47
Peak
Horizontal
Channel 6 / 2437MHz
Freq.
MHz
Reading
dBuV
4874.00
53.56
Ant.
Fac.
dB/m
33.16
4874.00
37.22
33.16
35.15
3.96
39.19
54.00
-14.81
Average
Horizontal
4874.00
58.09
33.16
35.15
3.96
60.06
74.00
-13.94
Peak
Vertical
4874.00
43.36
33.16
35.15
3.96
45.33
54.00
-8.67
Average
Vertical
Pre.
Fac.
dB
35.14
Cab.
Loss
dB
3.98
Measured
dBuV/m
Limit
dBuV/m
Margin
dB
Remark
Pol.
57.60
74.00
-16.40
Peak
Horizontal
Channel 11 / 2462MHz
Freq.
MHz
Reading
dBuV
4924.00
55.50
Ant.
Fac.
dB/m
33.26
4924.00
39.01
33.26
35.14
3.98
41.11
54.00
-12.89
Average
Horizontal
4924.00
58.73
33.26
35.14
3.98
60.83
74.00
-13.17
Peak
Vertical
4924.00
42.80
33.26
35.14
3.98
44.90
54.00
-9.10
Average
Vertical
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
IEEE 802.11g
Channel 1 / 2412MHz
55.03
Ant.
Fac.
dB/m
33.06
Pre.
Fac.
dB
35.14
Cab.
Loss
dB
3.98
4824.00
39.79
33.06
35.14
4824.00
58.92
33.06
4824.00
41.40
33.06
Freq.
MHz
Reading
dBuV
4824.00
Measured
dBuV/m
Limit
dBuV/m
Margin
dB
Remark
Pol.
56.93
74.00
-17.07
Peak
Horizontal
3.98
41.69
54.00
-12.31
Average
Horizontal
35.14
3.98
60.82
74.00
-13.18
Peak
Vertical
35.14
3.98
43.30
54.00
-10.70
Average
Vertical
Pre.
Fac.
dB
35.15
Cab.
Loss
dB
3.96
Measured
dBuV/m
Limit
dBuV/m
Margin
dB
Remark
Pol.
56.17
74.00
-17.83
Peak
Horizontal
Channel 6 / 2437MHz
Freq.
MHz
Reading
dBuV
4874.00
54.20
Ant.
Fac.
dB/m
33.16
4874.00
39.69
33.16
35.15
3.96
41.66
54.00
-12.34
Average
Horizontal
4874.00
58.59
33.16
35.15
3.96
60.56
74.00
-13.44
Peak
Vertical
4874.00
40.17
33.16
35.15
3.96
42.14
54.00
-11.86
Average
Vertical
Pre.
Fac.
dB
35.14
Cab.
Loss
dB
3.98
Measured
dBuV/m
Limit
dBuV/m
Margin
dB
Remark
Pol.
56.43
74.00
-17.57
Peak
Horizontal
Channel 11 / 2462MHz
Freq.
MHz
Reading
dBuV
4924.00
54.33
Ant.
Fac.
dB/m
33.26
4924.00
38.07
33.26
35.14
3.98
40.17
54.00
-13.83
Average
Horizontal
4924.00
57.02
33.26
35.14
3.98
59.12
74.00
-14.88
Peak
Vertical
4924.00
42.59
33.26
35.14
3.98
44.69
54.00
-9.31
Average
Vertical
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
IEEE 802.11n HT20
Channel 1 / 2412MHz
48.20
Ant.
Fac.
dB/m
33.06
Pre.
Fac.
dB
35.14
Cab.
Loss
dB
3.98
4824.00
33.06
33.06
35.14
4824.00
53.09
33.06
4824.00
36.27
33.06
Freq.
MHz
Reading
dBuV
4824.00
Measured
dBuV/m
Limit
dBuV/m
Margin
dB
Remark
Pol.
50.10
74.00
-23.90
Peak
Horizontal
3.98
34.96
54.00
-19.04
Average
Horizontal
35.14
3.98
54.99
74.00
-19.01
Peak
Vertical
35.14
3.98
38.17
54.00
-15.83
Average
Vertical
Pre.
Fac.
dB
35.15
Cab.
Loss
dB
3.96
Measured
dBuV/m
Limit
dBuV/m
Margin
dB
Remark
Pol.
52.61
74.00
-21.39
Peak
Horizontal
Channel 6 / 2437MHz
Freq.
MHz
Reading
dBuV
4874.00
50.64
Ant.
Fac.
dB/m
33.16
4874.00
35.46
33.16
35.15
3.96
37.43
54.00
-16.57
Average
Horizontal
4874.00
54.11
33.16
35.15
3.96
56.08
74.00
-17.92
Peak
Vertical
4874.00
38.35
33.16
35.15
3.96
40.32
54.00
-13.68
Average
Vertical
Pre.
Fac.
dB
35.14
Cab.
Loss
dB
3.98
Measured
dBuV/m
Limit
dBuV/m
Margin
dB
Remark
Pol.
50.37
74.00
-23.63
Peak
Horizontal
Channel 11 / 2462MHz
Freq.
MHz
Reading
dBuV
4924.00
48.27
Ant.
Fac.
dB/m
33.26
4924.00
36.29
33.26
35.14
3.98
38.39
54.00
-15.61
Average
Horizontal
4924.00
55.87
33.26
35.14
3.98
57.97
74.00
-16.03
Peak
Vertical
4924.00
39.70
33.26
35.14
3.98
41.80
54.00
-12.20
Average
Vertical
Notes:
1. Measuring frequencies from 9 KHz~10th harmonic or 26GHz (which is less), No emission found
between lowest internal used/generated frequency to 30MHz.
2. Radiated emissions measured in frequency range from 9 KHz~10th harmonic or 26GHz (which is less)
were made with an instrument using Peak detector mode.
3. Data of measurement within this frequency range shown “---” 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.
4. Worst case data at 1Mbps at IEEE 802.11b; 6Mbps at IEEE 802.11g; 6.5Mbps at IEEE 802.11n HT20
This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
5.6. Conducted Spurious Emissions and Band Edges Test
5.6.1. 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. Attenuation below the general limits specified in Section 15.209(a) is not required. In
addition, radiated emissions which fall in the restricted bands, as defined in Section 15.205(a), must also
comply with the radiated emission limits specified in Section 15.209(a) (see Section 15.205(c)).
5.6.2. Measuring Instruments and Setting
Please refer to section 6 of equipment list in this report. The following table is the setting of the spectrum
analyzer.
Spectrum Parameter
Detector
Attenuation
RB / VB (Emission in restricted band)
RB / VB (Emission in non-restricted band)
Setting
Peak
Auto
100KHz/300KHz
100KHz/300KHz
5.6.3. Test Procedures
The transmitter output is connected to a spectrum analyzer. The resolution bandwidth is set to 100 kHz.
The video bandwidth is set to 300 kHz
The spectrum from 9 KHz to 26GHz is investigated with the transmitter set to the lowest, middle, and
highest channels.
5.6.4. Test Setup Layout
This test setup layout is the same as that shown in section 5.4.4.
5.6.5. EUT Operation during Test
The EUT was programmed to be in continuously transmitting mode.
5.6.6. Test Results of Conducted Spurious Emissions
Temperature
25℃
Humidity
60%
Test Engineer
Jayden Zhuo
Configurations
IEEE 802.11b/g/n
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
Test Mode
IEEE 802.11b
IEEE 802.11g
IEEE 802.11n
HT20
Channel
11
11
11
Frequency
(MHz)
2412
2437
2462
2412
2437
2462
2412
2437
2462
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
Spurious RF Conducted Emission
(dBc)
<-20
<-20
<-20
<-20
<-20
<-20
<-20
<-20
<-20
Limits
(dBc)
Verdict
-20
PASS
-20
PASS
-20
PASS
Remark:
1. Measured RF conducted spurious emission at difference data rate for each mode and recorded worst case
for each mode.
2. Test results including cable loss;
3. Worst case data at 1Mbps at IEEE 802.11b; 6Mbps at IEEE 802.11g; 6.5Mbps at IEEE 802.11n HT20;
“---“means that the fundamental frequency not for 15.209 limits requirement.
4. For frequency below 30MHz, no emission has found, therefore, it's not recorded.
5. Please refer to following plots;
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
RF Conducted Spurious Emission
IEEE 802.11b
Reference Peak Value-Low channel
30 MHz – 26 GHz
Reference Peak Value-Mid channel
30 MHz – 26 GHz
Reference Peak Value-High channel
30 MHz – 26 GHz
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
RF Conducted Spurious Emission
IEEE 802.11g
Reference Peak Value-Low channel
30 MHz – 26 GHz
Reference Peak Value-Mid channel
30 MHz – 26 GHz
Reference Peak Value-High channel
30 MHz – 26 GHz
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
RF Conducted Spurious Emission
IEEE 802.11n HT20
Reference Peak Value-Low channel
30 MHz – 26 GHz
Reference Peak Value-Mid channel
30 MHz – 26 GHz
Reference Peak Value-High channel
30 MHz – 26 GHz
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
Band-edge measurements for conducted emissions
IEEE 802.11b
Channel 1 / 2412 MHz
Channel 11 / 2462 MHz
IEEE 802.11g
Channel 1 / 2412 MHz
Channel 11 / 2462 MHz
IEEE 802.11n HT20
Channel 1 / 2412 MHz
Channel 11 / 2462 MHz
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
5.7. Power line conducted emissions
5.7.1 Standard Applicable
According to §15.207 (a): For an intentional radiator which is designed to be connected to the public utility
(AC) power line, the radio frequency voltage that is conducted back onto the AC power line on any
frequency or frequencies within the band 150 kHz to 30 MHz shall not exceed 250 microvolts (The limit
decreases linearly with the logarithm of the frequency in the range 0.15 MHz to 0.50 MHz). The limits at
specific frequency range are listed as follows:
Frequency Range
(MHz)
0.15 to 0.50
0.50 to 5
5 to 30
Limits (dBμV)
Quasi-peak
66 to 56
56
60
Average
56 to 46
46
50
* Decreasing linearly with the logarithm of the frequency
5.7.2 Block Diagram of Test Setup
V e rt. r efe re nc e
pla n e
EM I re c ei ve r
EUT
L ISN
R ef ere n ce gro u nd pla n e
5.7.3 Test Results
PASS.
The test data please refer to following page.
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
AC Conducted Emission of power adapter @ AC 240V/50Hz @ IEEE 802.11b (worst case)
Line:
Neutral:
***Note: Pre-scan all modes and recorded the worst case results in this report (IEEE 802.11b).
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
5.8. Restrict-band band-edge measurements for radiated emissions
5.8.1 Standard Applicable
Per the requirement of ANSI C63.10:2013 §6.10.5, Restricted-band band-edge tests shall be performed as
radiated measurements, however, §12.7.2 that allowed a converted method from conducted measurement
function
5.8.2. Test Setup Layout
5.8.3. Measuring Instruments and Setting
Please refer to section 6 of equipment list in this report. The following table is the setting of Spectrum
Analyzer.
5.8.4. Test Procedures
According to KDB 558074 D01 v04 for Antenna-port conducted measurement. Antenna-port conducted
measurements may also be used as an alternative to radiated measurements for demonstrating
compliance in the restricted frequency bands. If conducted measurements are performed, then proper
impedance matching must be ensured and an additional radiated test for cabinet/case spurious
emissions is required.
1. Check the calibration of the measuring instrument using either an internal calibrator or a known signal
from an external generator.
2. Remove the antenna from the EUT and then connect to a low loss RF cable from the antenna port to a
EMI test receiver, then turn on the EUT and make it operate in transmitting mode. Then set it to Low
Channel and High Channel within its operating range, and make sure the instrument is operated in its
linear range.
3. Set both RBW and VBW of spectrum analyzer to 100 kHz with a convenient frequency span including
100kHz bandwidth from band edge, for Radiated emissions restricted band RBW=1MHz, VBW=3MHz
for peak detector and RBW=1MHz, VBW=1/B for Peak detector.
4. 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.
5. Repeat above procedures until all measured frequencies were complete.
6. Measure the conducted output power (in dBm) using the detector specified by the appropriate
regulatory agency (see 12.2.2, 12.2.3, and 12.2.4 for guidance regarding measurement procedures
for determining quasi-peak, peak, and average conducted output power, respectively).
7. Add the maximum transmit antenna gain (in dBi) to the measured output power level to determine the
EIRP level (see 12.2.5 for guidance on determining the applicable antenna gain)
8. Add the appropriate maximum ground reflection factor to the EIRP level (6 dB for frequencies ≤ 30
MHz, 4.7 dB for frequencies between 30 MHz and 1000 MHz, inclusive and 0 dB for frequencies >
1000 MHz).
9. For devices with multiple antenna-ports, measure the power of each individual chain and sum the
EIRP of all chains in linear terms (e.g., Watts, mW).
10. Convert the resultant EIRP level to an equivalent electric field strength using the following relationship:
E = EIRP – 20log D + 104.8= EIRP + 95.2
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FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
Where:
E = electric field strength in dBμV/m,
EIRP = equivalent isotropic radiated power in dBm
D = specified measurement distance in meters.
11. Since the out-of-band characteristics of the EUT transmit antenna will often be unknown, the use of a
conservative antenna gain value is necessary. Thus, when determining the EIRP based on the
measured conducted power, the upper bound on antenna gain for a device with a single RF output
shall be selected as the maximum in-band gain of the antenna across all operating bands, or 2 dBi,
whichever is greater. However, for devices that operate in multiple frequency bands while using the
same transmit antenna, the highest gain of the antenna within the operating band nearest in frequency
to the restricted band emission being measured may be used in lieu of the overall highest gain when
the emission is at a frequency that is within 20 percent of the nearest band edge frequency, but in no
case shall a value less than 2 dBi be used.
12. Compare the resultant electric field strength level to the applicable regulatory limit.
13. Perform radiated spurious emission test duress until all measured frequencies were complete.
5.8.5 Test Results
Frequency
(MHz)
Conducted
Power
(dBm)
Antenna
Gain
(dBi)
2310.000
2310.000
2390.000
2390.000
2483.500
2483.500
2500.000
2500.000
-42.55
-54.97
-39.89
-47.74
-43.85
-53.16
-43.75
-54.20
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
Frequency
(MHz)
Conducted
Power
(dBm)
Antenna
Gain
(dBi)
2310.000
2310.000
2390.000
2390.000
2483.500
2483.500
2500.000
2500.000
-44.40
-54.75
-29.05
-45.23
-31.14
-48.57
-37.57
-52.46
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
IEEE 802.11b
Ground
Covert
Reflection
Radiated E
Factor
Level At 3m
(dB)
(dBuV/m)
0.00
54.65
0.00
42.23
0.00
57.31
0.00
49.46
0.00
53.35
0.00
44.04
0.00
53.45
0.00
43.00
IEEE 802.11g
Ground
Covert
Reflection
Radiated E
Factor
Level At 3m
(dB)
(dBuV/m)
0.00
52.80
0.00
42.45
0.00
68.15
0.00
51.97
0.00
66.06
0.00
48.63
0.00
59.63
0.00
44.74
Detector
Limit
(dBuV/m)
Verdict
Peak
AV
Peak
AV
Peak
AV
Peak
AV
74.00
54.00
74.00
54.00
74.00
54.00
74.00
54.00
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
Detector
Limit
(dBuV/m)
Verdict
Peak
AV
Peak
AV
Peak
AV
Peak
AV
74.00
54.00
74.00
54.00
74.00
54.00
74.00
54.00
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
Frequency
(MHz)
Conducted
Power
(dBm)
Antenna
Gain
(dBi)
2310.000
2310.000
2390.000
2390.000
2483.500
2483.500
2500.000
2500.000
-43.12
-54.74
-28.22
-44.66
-28.33
-46.37
-39.48
-52.11
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
FCC ID:2AMUU-MSS425
IEEE 802.11n HT20
Ground
Covert
Reflection
Radiated E
Factor
Level At 3m
(dB)
(dBuV/m)
0.00
54.08
0.00
42.46
0.00
68.98
0.00
52.54
0.00
68.87
0.00
50.83
0.00
57.72
0.00
45.09
Report No.: LCS171208057AEA
Detector
Limit
(dBuV/m)
Verdict
Peak
AV
Peak
AV
Peak
AV
Peak
AV
74.00
54.00
74.00
54.00
74.00
54.00
74.00
54.00
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
Remark:
1. Measured Band edge measurement for radiated emission at difference data rate for each mode and
recorded worst case for each mode.
2. Test results including cable loss;
3. Worst case data at 1Mbps at IEEE 802.11b; 6Mbps at IEEE 802.11g; 6.5Mbps at IEEE 802.11n HT20;
4. “---“means that the fundamental frequency not for 15.209 limits requirement.
5. Please refer to following plots;
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
Restrict-band band-edge measurements for conducted emissions
IEEE 802.11b
IEEE 802.11g
Channel 1 / 2412 MHz – Peak
Channel 1 / 2412 MHz – Peak
Channel 1 / 2412 MHz – Average
Channel 1 / 2412 MHz – Average
Channel 11 / 2412 MHz – Peak
Channel 11 / 2412 MHz – Peak
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
Restrict-band band-edge measurements for conducted emissions
IEEE 802.11b
IEEE 802.11g
Channel 11 / 2412 MHz – Average
IEEE 802.11n HT20
Channel 11 / 2412 MHz – Average
IEEE 802.11n HT20
Channel 1 / 2412 MHz – Peak
Channel 11 / 2462 MHz – Peak
Channel 1 / 2412 MHz – Average
Channel 11 / 2462 MHz – Average
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FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
5.9. Antenna Requirements
5.9.1 Standard Applicable
According to antenna requirement of §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. The manufacturer may design
the unit so that a broken antenna can be re-placed by the user, but the use of a standard antenna jack or
electrical connector is prohibited. This requirement does not apply to carrier current devices or to devices
operated under the provisions of Sections 15.211, 15.213, 15.217, 15.219, or 15.221. Further, this
requirement does not apply to intentional radiators that must be professionally installed, such as perimeter
protection systems and some field disturbance sensors, or to other intentional radiators which, in
accordance with Section 15.31(d), must be measured at the installation site. However, the installer shall
be responsible for ensuring that the proper antenna is employed so that the limits in this Part are not
exceeded.
And according to §15.247(4)(1), system operating in the 2400-2483.5MHz bands that are used
exclusively for fixed, point-to-point operations may employ transmitting antennas with directional gain
greater than 6dBi provided the maximum peak output power of the intentional radiator is reduced by 1 dB
for every 3 dB that the directional gain of the antenna exceeds 6dBi.
5.9.2 Antenna Connected Construction
5.9.2.1. Standard Applicable
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.
5.9.2.2. Antenna Connector Construction
The antenna gain used for Wi-Fi transmitting is 1.5dBi, it’s an internal antenna build on PCB board and no
consideration of replacement. Please see EUT photo for details.
5.9.2.3. Results: Compliance.
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
6. LIST OF MEASURING EQUIPMENTS
Item
Equipment
Manufacturer
Model No.
Serial No.
Last Cal.
Next Cal.
Power Sensor
R&S
NRV-Z81
100458
2017-06-18
2018-06-17
Power Sensor
R&S
NRV-Z32
10057
2017-06-18
2018-06-17
Power Meter
R&S
NRVS
100444
2017-06-18
2018-06-17
DC Filter
MPE
23872C
N/A
2017-06-18
2018-06-17
RF Cable
Harbour Industries
1452
N/A
2017-06-18
2018-06-17
SMA Connector Harbour Industries
9625
N/A
2017-06-18
2018-06-17
Agilent
N9020A
MY50510140
2017-10-27
2018-10-26
US44300469
2017-06-16
2018-06-15
Spectrum Analyzer
Signal analyzer
Agilent
E4448A(Exter
nal mixers to
40GHz)
RF Cable
Hubersuhner
Sucoflex104
FP2RX2
2017-06-18
2018-06-17
10
3m Semi Anechoic
Chamber
SIDT
FRANKONIA
SAC-3M
03CH03-HY
2017-06-18
2018-06-17
11
Amplifier
SCHAFFNER
COA9231A
18667
2017-04-18
2018-04-17
12
Amplifier
Agilent
8449B
3008A02120
2017-04-18
2018-04-17
13
Amplifier
MITEQ
AMF-6F-2604
00
9121372
2017-04-18
2018-04-17
14
Loop Antenna
R&S
HFH2-Z2
860004/001
2017-04-18
2018-04-17
15
By-log Antenna
SCHWARZBECK
VULB9163
9163-470
2017-04-18
2018-04-17
16
Horn Antenna
EMCO
3115
6741
2017-04-18
2018-04-17
17
Horn Antenna
SCHWARZBECK
BBHA9170
BBHA9170154
2017-04-18
2018-04-17
18
RF Cable-R03m
Jye Bao
RG142
CB021
2017-06-18
2018-06-17
19
RF Cable-HIGH
SUHNER
SUCOFLEX
106
03CH03-HY
2017-06-18
2018-06-17
20
EMI Test Receiver
R&S
ESCI
101142
2017-06-18
2018-06-17
21
Artificial Mains
R&S
ENV216
101288
2017-06-18
2018-06-17
22
EMI Test Software
AUDIX
E3
N/A
2017-06-18
2018-06-17
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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID:2AMUU-MSS425
Report No.: LCS171208057AEA
7. TEST SETUP PHOTOGRAPHS OF EUT
Please refer to separated files for Test Setup Photos of the EUT.
8. EXTERIOR PHOTOGRAPHS OF THE EUT
Please refer to separated files for External Photos of the EUT.
9. INTERIOR PHOTOGRAPHS OF THE EUT
Please refer to separated files for Internal Photos of the EUT.
---------------THE END OF REPORT---------------
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Download: MSS425 Smart Wi-Fi Surge Protector Test Report RF Chengdu Meross Technology Co., Ltd.
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