LJ-C2 Intelligent Car Terminal Test Report FCC Part 15.247B Beijing iLeja Tech.Co.Ltd.

Beijing iLeja Tech.Co.Ltd. Intelligent Car Terminal

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Model: LJ-C2
FCC Part 15C
Measurement and Test Report
For
Beijing iLeja Tech. Co. Ltd.
Room 3558, Building 3, Courtyard 29,DongBeiWang South Road, Haidian
District, Beijing
FCC ID: 2AKVNLJ-C2
FCC Rule(s):
FCC Part 15.247
Product Description:
Intelligent Car Terminal
Tested Model:
LJ-C2
Report No.:
STR16108134I-4
Tested Date:
2016-10-26 to 2017-02-07
Issued Date:
2017-02-07
Tested By:
Leo Lee / 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.: STR16108134I-4
PAGE 1 OF 56
FCC PART 15.247
Model: LJ-C2
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 ..............................................................................................................................6
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. FREQUENCY HOPPING SYSTEM REQUIREMENTS ...................................................................................10
5.1 STANDARD APPLICABLE.......................................................................................................................................10
5.2 FREQUENCY HOPPING SYSTEM.............................................................................................................................10
5.3 EUT PSEUDORANDOM FREQUENCY HOPPING SEQUENCE ....................................................................................11
6. QUANTITY OF HOPPING CHANNELS AND CHANNEL SEPARATION ...................................................12
6.1 STANDARD APPLICABLE.......................................................................................................................................12
6.2 TEST PROCEDURE .................................................................................................................................................12
6.3 ENVIRONMENTAL CONDITIONS ............................................................................................................................12
6.4 SUMMARY OF TEST RESULTS/PLOTS ....................................................................................................................13
7. DWELL TIME OF HOPPING CHANNEL ..........................................................................................................17
7.1 STANDARD APPLICABLE.......................................................................................................................................17
7.2 TEST PROCEDURE .................................................................................................................................................17
7.3 ENVIRONMENTAL CONDITIONS ............................................................................................................................17
7.4 SUMMARY OF TEST RESULTS/PLOTS ....................................................................................................................18
8. 20DB BANDWIDTH ...............................................................................................................................................28
8.1 STANDARD APPLICABLE.......................................................................................................................................28
8.2 TEST PROCEDURE .................................................................................................................................................28
8.3 ENVIRONMENTAL CONDITIONS ............................................................................................................................29
8.4 SUMMARY OF TEST RESULTS/PLOTS ....................................................................................................................29
9. RF OUTPUT POWER ............................................................................................................................................33
9.1 STANDARD APPLICABLE.......................................................................................................................................33
9.2 TEST PROCEDURE .................................................................................................................................................33
9.3 ENVIRONMENTAL CONDITIONS ............................................................................................................................33
9.4 SUMMARY OF TEST RESULTS/PLOTS ....................................................................................................................33
10. FIELD STRENGTH OF SPURIOUS EMISSIONS ...........................................................................................40
10.1 STANDARD APPLICABLE.....................................................................................................................................40
10.2 TEST PROCEDURE ...............................................................................................................................................40
10.3 CORRECTED AMPLITUDE & MARGIN CALCULATION ..........................................................................................41
10.4 ENVIRONMENTAL CONDITIONS ..........................................................................................................................41
10.5 SUMMARY OF TEST RESULTS/PLOTS ..................................................................................................................42
11. OUT OF BAND EMISSIONS ...............................................................................................................................49
11.1 STANDARD APPLICABLE.....................................................................................................................................49
11.2 TEST PROCEDURE ...............................................................................................................................................49
11.3 ENVIRONMENTAL CONDITIONS ..........................................................................................................................50
11.4 SUMMARY OF TEST RESULTS/PLOTS ..................................................................................................................51
REPORT NO.: STR16108134I-4
PAGE 2 OF 56
FCC PART 15.247
Model: LJ-C2
1. GENERAL INFORMATION
1.1 Product Description for Equipment Under Test (EUT)
Client Information
Applicant:
Address of applicant:
Manufacturer:
Address of manufacturer:
Beijing iLeja Tech. Co. Ltd.
Room 3558, Building 3, Courtyard 29,DongBeiWang
South Road, Haidian District, Beijing
Beijing iLeja Tech. Co. Ltd.
Room 3558, Building 3, Courtyard 29,DongBeiWang
South Road, Haidian District, Beijing
General Description of EUT
Product Name:
Intelligent Car Terminal
Trade Name:
carrobot
Model No.:
LJ-C2
Adding Model(s):
Rated Voltage:
DC 12V
Power Adapter Model:
Software Version:
Carrobot_SIM_US_V01_161103
Hardware Version:
2CX006_V1.01
Note: The test data is gathered from a production sample provided 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 of EUT:
REPORT NO.: STR16108134I-4
V4.0 (Compatible 3.0 mode)
2402-2480MHz
-0.722dBm (Conducted)
1Mbps, 2Mbps, 3Mbps
GFSK, Pi/4 QDPSK, 8DPSK
79
1MHz
Integral antenna
1.0dBi
26MHz
PAGE 3 OF 56
FCC PART 15.247
Model: LJ-C2
1.2 Test Standards
The following report is prepared on behalf of the Beijing iLeja Tech. Co. Ltd. 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.
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.: STR16108134I-4
PAGE 4 OF 56
FCC PART 15.247
Model: LJ-C2
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
Low Channel
2402MHz
TM2
Middle Channel
2441MHz
TM3
High Channel
2480MHz
TM4
Hopping
2402-2480MHz
Modulation Configure
Modulation
GFSK
Pi/4 DQPSK
8DPSK
Packet
Packet Type
Packet Size
DH1
27
DH3
11
183
DH5
15
339
2DH1
20
54
2DH3
26
367
2DH5
30
379
3DH1
24
83
3DH3
27
552
3DH5
31
1021
Normal mode: the Bluetooth has been tested on the modulation of GFSK, (Pi/4)DQPSK and
8DPSK, compliance test and record the worst case.
Accessories Equipment List and Details
Description
Manufacturer
Model No.
Serial Number
Accessories Cable List and Details
Cable Description
Length (m)
Shielded/Unshielded
With Core/Without Core
DC cable
1.35
Unshielded
Without Core
Cable Description
Length (m)
Shielded/Unshielded
With Core/Without Core
EUT Cable List and Details
REPORT NO.: STR16108134I-4
PAGE 5 OF 56
FCC PART 15.247
Model: LJ-C2
1.6 Measurement Uncertainty
Measurement uncertainty
Parameter
Conditions
Uncertainty
RF Output Power
Conducted
±0.42dB
Occupied Bandwidth
Conducted
±1.5%
Conducted Spurious Emission
Conducted
±2.17dB
Conducted Emissions
Conducted
±2.88dB
Transmitter Spurious Emissions
Radiated
±5.1dB
Radio Frequency
Conducted
±1×10-7
Transmission Time
Conducted
±1.0%
1.7 Test Equipment List and Details
No.
SEMT-1072
Description
Spectrum Analyzer
Manufacturer
Agilent
Model
E4407B
Serial No.
MY41440400
Cal Date Due Date
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.: STR16108134I-4
PAGE 6 OF 56
FCC PART 15.247
Model: LJ-C2
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
N/A
§15.209(a)
Radiated Spurious Emissions
Compliant
§15.247(a)(1)(iii)
Quantity of Hopping Channel
Compliant
§15.247(a)(1)
Channel Separation
Compliant
§15.247(a)(1)(iii)
Time of Occupancy (Dwell time)
Compliant
§15.247(a)
20dB Bandwidth
Compliant
§15.247(b)(1)
RF Power Output
Compliant
§15.247(d)
Band Edge (Out of Band Emissions)
Compliant
§15.247(a)(1)
Frequency Hopping Sequence
Compliant
§15.247(g), (h)
Frequency Hopping System
Compliant
N/A: not applicable
REPORT NO.: STR16108134I-4
PAGE 7 OF 56
FCC PART 15.247
Model: LJ-C2
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.: STR16108134I-4
PAGE 8 OF 56
FCC PART 15.247
Model: LJ-C2
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 an integral antenna, fulfill the requirement of this section.
REPORT NO.: STR16108134I-4
PAGE 9 OF 56
FCC PART 15.247
Model: LJ-C2
5. Frequency Hopping System Requirements
5.1 Standard Applicable
According to FCC Part 15.247(a)(1), The system shall hop to channel frequencies that are selected at the system
hopping rate from a pseudo randomly ordered list of hopping frequencies. Each frequency must be used equally
on the average by each transmitter. The system receivers shall have input bandwidths that match the hopping
channel bandwidths of their corresponding transmitters and shall shift frequencies in synchronization with the
transmitted signals.
(g) Frequency hopping spread spectrum systems are not required to employ all available hopping channels during
each transmission. However, the system, consisting of both the transmitter and the receiver, must be designed to
comply with all of the regulations in this section should the transmitter be presented with a continuous data (or
information) stream. In addition, a system employing short transmission bursts must comply with the definition of
a frequency hopping system and must distribute its transmissions over the minimum number of hopping channels
specified in this section.
(h) The incorporation of intelligence within a frequency hopping spread spectrum system that permits the system
to recognize other users within the spectrum band so that it individually and independently chooses and adapts its
hopsets to avoid hopping on occupied channels is permitted. The coordination of frequency hopping systems in
any other manner for the express purpose of avoiding the simultaneous occupancy of individual hopping
frequencies by multiple transmitters is not permitted.
5.2 Frequency Hopping System
This transmitter device is frequency hopping device, and complies with FCC part 15.247 rule.
This device uses Bluetooth radio which operates in 2400-2483.5 MHz band. Bluetooth uses a radio technology
called frequency-hopping spread spectrum, which chops up the data being sent and transmits chunks of it on up to
79 bands (1 MHz each; centred from 2402 to 2480 MHz) in the range 2,400-2,483.5 MHz. The transmitter
switches hop frequencies 1,600 times per second to assure a high degree of data security. All Bluetooth devices
participating in a given piconet are synchronized to the frequency-hopping channel for the piconet. The frequency
hopping sequence is determined by the master's device address and the phase of the hopping sequence (the
frequency to hop at a specific time) is determined by the master's internal clock. Therefore, all slaves in a piconet
must know the master's device address and must synchronize their clocks with the master's clock.
Adaptive Frequency Hopping (AFH) was introduced in the Bluetooth specification to provide an effective way for
a Bluetooth radio to counteract normal interference. AFH identifies "bad" channels, where either other wireless
devices are interfering with the Bluetooth signal or the Bluetooth signal is interfering with another device. The
AFH-enabled Bluetooth device will then communicate with other devices within its piconet to share details of any
identified bad channels. The devices will then switch to alternative available "good" channels, away from the
areas of interference, thus having no impact on the bandwidth used.
REPORT NO.: STR16108134I-4
PAGE 10 OF 56
FCC PART 15.247
Model: LJ-C2
This device was tested with an bluetooth system receiver to check that the device maintained hopping
synchronization, and the device complied with these requirements for DA 00-705 and FCC Part 15.247 rule.
5.3 EUT Pseudorandom Frequency Hopping Sequence
Pseudorandom Frequency Hopping Sequence Table as below:
Channel: 08, 24, 40, 56, 40, 56, 72, 09, 01, 09, 33, 41, 33, 41, 65, 73, 53, 69, 06, 22, 04, 20, 36, 52, 38, 46, 70, 78,
68, 76, 21, 29, 10, 26, 42, 58, 44, 60, 76, 13, 03, 11, 35, 43, 37, 45, 69, 77, 55, 71, 08, 24, 08, 24, 40, 56, 40, 48,
72, 01, 72, 01, 25, 33, 12, 28, 44, 60, 42, 58, 74, 11, 05, 13, 37, 45 etc.
The system receiver has input bandwidths that match the hopping channel bandwidths of their corresponding
transmitters and shift frequencies in synchronization with the transmitted signals.
REPORT NO.: STR16108134I-4
PAGE 11 OF 56
FCC PART 15.247
Model: LJ-C2
6. Quantity of Hopping Channels and Channel Separation
6.1 Standard Applicable
According to FCC 15.247(a)(1), frequency hopping systems operating in the 2400-2483.5 MHz band may have
hopping channel carrier frequencies that are separated by 25 kHz or two-thirds of the 20 dB bandwidth of the
hopping channel, and frequency hopping systems in the 2400-2483.5 MHz band shall use at least 15 channels.
6.2 Test Procedure
According to ANSI C63.10-2013 section 7.8.3, the number of hopping frequencies test method as follows.
a) Span: The frequency band of operation. Depending on the number of channels the device supports, it may be
necessary to divide the frequency range of operation across multiple spans, to allow the individual channels to be
clearly seen.
b) RBW: To identify clearly the individual channels, set the RBW to less than 30% of the channel spacing or the
20 dB bandwidth, whichever is smaller.
c) VBW ≥ RBW.
d) Sweep: Auto.
e) Detector function: Peak.
f) Trace: Max hold.
g) Allow the trace to stabilize.
According to ANSI C63.10-2013 section 7.8.2, the EUT shall have its hopping function enabled, the Carrier
frequency separation test method as follows:
a) Span: Wide enough to capture the peaks of two adjacent channels.
b) RBW: Start with the RBW set to approximately 30% of the channel spacing; adjust as necessary to best identify
the center of each individual channel.
c) Video (or average) bandwidth (VBW) ≥ RBW.
d) Sweep: Auto.
e) Detector function: Peak.
f) Trace: Max hold.
g) Allow the trace to stabilize.
Use the marker-delta function to determine the separation between the peaks of the adjacent channels.
6.3 Environmental Conditions
Temperature:
24 C
Relative Humidity:
54
ATM Pressure:
1011 mbar
REPORT NO.: STR16108134I-4
PAGE 12 OF 56
FCC PART 15.247
Model: LJ-C2
6.4 Summary of Test Results/Plots
No. of Channel = 79
For GFSK mode
Channel Spacing (Low CH=1MHz)
REPORT NO.: STR16108134I-4
PAGE 13 OF 56
FCC PART 15.247
Model: LJ-C2
Channel Spacing (Middle CH=1MHz)
Channel Spacing (High CH=1MHz)
REPORT NO.: STR16108134I-4
PAGE 14 OF 56
FCC PART 15.247
Model: LJ-C2
For 8DPSK mode
Channel Spacing (Low CH=1MHz)
Channel Spacing (Middle CH=1MHz)
REPORT NO.: STR16108134I-4
PAGE 15 OF 56
FCC PART 15.247
Model: LJ-C2
Channel Spacing (High CH=1MHz)
REPORT NO.: STR16108134I-4
PAGE 16 OF 56
FCC PART 15.247
Model: LJ-C2
7. Dwell Time of Hopping Channel
7.1 Standard Applicable
According to 15.247(a)(1)(iii), Frequency hopping systems in the 2400–2483.5 MHz band shall use at least 15
channels. The average time of occupancy on any channel shall not be greater than 0.4 seconds within a period of
0.4 seconds multiplied by the number of hopping channels employed.
7.2 Test Procedure
According to ANSI C63.10-2013 section 7.8.4, the dwell time of a hopping channel test method as follows.
a) Span: Zero span, centered on a hopping channel.
b) RBW shall be ≤ channel spacing and where possible RBW should be set >> 1 / T, where T is the expected
dwell time per channel.
c) Sweep: As necessary to capture the entire dwell time per hopping channel; where possible use a video trigger
and trigger delay so that the transmitted signal starts a little to the right of the start
of the plot. The trigger level might need slight adjustment to prevent triggering when the system hops on an
adjacent channel; a second plot might be needed with a longer sweep time to show two successive hops on a
channel.
d) Detector function: Peak.
e) Trace: Max hold.
Use the marker-delta function to determine the transmit time per hop. If this value varies with different modes of
operation (data rate, modulation format, number of hopping channels, etc.), then repeat this test for each variation
in transmit time.
Repeat the measurement using a longer sweep time to determine the number of hops over the period specified in
the requirements. The sweep time shall be equal to, or less than, the period specified in the requirements.
Determine the number of hops over the sweep time and calculate the total number of hops in the period specified
in the requirements, using the following equation:
(Number of hops in the period specified in the requirements) =
(number of hops on spectrum analyzer) × (period specified in the requirements / analyzer sweep time)
The average time of occupancy is calculated from the transmit time per hop multiplied by the number of hops in
the period specified in the requirements. If the number of hops in a specific time varies with different modes of
operation (data rate, modulation format, number of hopping channels, etc.), then repeat this test for each variation.
The measured transmit time and time between hops shall be consistent with the values described in the operational
description for the EUT.
7.3 Environmental Conditions
Temperature:
24 C
Relative Humidity:
54
ATM Pressure:
1011 mbar
REPORT NO.: STR16108134I-4
PAGE 17 OF 56
FCC PART 15.247
Model: LJ-C2
7.4 Summary of Test Results/Plots
The dwell time within a period in data mode is independent from the packet type (packet length).
Test data is corrected with the worse case, which the packet length is DH1, DH3, and DH5.
The test period: T = 0.4 Second * 79 Channel = 31.6 s
Dwell time = time slot length * (Hopping rate / Number of hopping channels) * Period
Modulation
Test Channel
2402MHz
GFSK
2441MHz
2480MHz
2402MHz
8DPSK
2441MHz
2480MHz
Time Slot Length
Dwell Time
Limit
ms
ms
ms
DH1
0.35
112.00
400
DH3
1.62
259.20
400
DH5
2.86
305.07
400
DH1
0.36
115.20
400
DH3
1.62
259.20
400
DH5
2.87
306.13
400
DH1
0.36
115.20
400
DH3
1.62
259.20
400
DH5
2.87
306.13
400
3DH1
0.37
118.40
400
3DH3
1.62
259.20
400
3DH5
2.86
305.07
400
3DH1
0.37
118.40
400
3DH3
1.63
260.80
400
3DH5
2.88
307.20
400
3DH1
0.37
118.40
400
3DH3
1.62
259.20
400
3DH5
2.87
306.13
400
Packet
Please refer to the test plots as below:
REPORT NO.: STR16108134I-4
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FCC PART 15.247
Model: LJ-C2
DH1 time slot (Low, Middle, High Channels)
REPORT NO.: STR16108134I-4
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FCC PART 15.247
Model: LJ-C2
DH3 time slot (Low, Middle, High Channels)
REPORT NO.: STR16108134I-4
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FCC PART 15.247
Model: LJ-C2
REPORT NO.: STR16108134I-4
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FCC PART 15.247
Model: LJ-C2
DH5 time slot (Low, Middle, High Channels)
REPORT NO.: STR16108134I-4
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FCC PART 15.247
Model: LJ-C2
3DH1 time slot (Low, Middle, High Channels)
REPORT NO.: STR16108134I-4
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FCC PART 15.247
Model: LJ-C2
REPORT NO.: STR16108134I-4
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FCC PART 15.247
Model: LJ-C2
3DH3 time slot (Low, Middle, High Channels)
REPORT NO.: STR16108134I-4
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FCC PART 15.247
Model: LJ-C2
3DH5 time slot (Low, Middle, High Channels)
REPORT NO.: STR16108134I-4
PAGE 26 OF 56
FCC PART 15.247
Model: LJ-C2
REPORT NO.: STR16108134I-4
PAGE 27 OF 56
FCC PART 15.247
Model: LJ-C2
8. 20dB Bandwidth
8.1 Standard Applicable
According to 15.247(a) and 15.215(c). 20dB bandwidth is recommended that the fundamental emission be kept
within at least the central 80% of the permitted band in order to minimize the possibility of out-of-band operation.
8.2 Test Procedure
According to ANSI C63.10-2013 section 6.9.2, the 20dB bandwidth test method as follows.
a) The spectrum analyzer center frequency is set to the nominal EUT channel center frequency. The span range for
the EMI receiver or spectrum analyzer shall be between two times and five times the OBW.
b) The nominal IF filter bandwidth (3 dB RBW) shall be in the range of 1% to 5% of the OBW and video
bandwidth (VBW) shall be approximately three times RBW, unless otherwise specified by the applicable
requirement.
c) Set the reference level of the instrument as required, keeping the signal from exceeding the maximum input
mixer level for linear operation. In general, the peak of the spectral envelope shall be more than [10 log
(OBW/RBW)] below the reference level.
d) Steps a) through c) might require iteration to adjust within the specified tolerances.
e) The dynamic range of the instrument at the selected RBW shall be more than 10 dB below the target “−xx dB
down” requirement; that is, if the requirement calls for measuring the −20 dB OBW, the instrument noise floor at
the selected RBW shall be at least 30 dB below the reference value.
f) Set detection mode to peak and trace mode to max hold.
g) Determine the reference value: Set the EUT to transmit an unmodulated carrier or modulated signal, as
applicable. Allow the trace to stabilize. Set the spectrum analyzer marker to the highest level of the displayed trace
(this is the reference value).
h) Determine the “−xx dB down amplitude” using [(reference value) − xx]. Alternatively, this calculation may be
made by using the marker-delta function of the instrument.
i) If the reference value is determined by an unmodulated carrier, then turn the EUT modulation ON, and either
clear the existing trace or start a new trace on the spectrum analyzer and allow the new trace to stabilize.
Otherwise, the trace from step g) shall be used for step j).
j) Place two markers, one at the lowest frequency and the other at the highest frequency of the envelope of the
spectral display, such that each marker is at or slightly below the “−xx dB down amplitude” determined in step h).
If a marker is below this “−xx dB down amplitude” value, then it shall be as close as possible to this value. The
occupied bandwidth is the frequency difference between the two markers. Alternatively, set a marker at the lowest
frequency of the envelope of the spectral display, such that the marker is at or slightly below the “−xx dB down
amplitude” determined in step h). Reset the marker-delta function and move the marker to the other side of the
emission until the delta marker amplitude is at the same level as the reference marker amplitude. The marker-delta
frequency reading at this point is the specified emission bandwidth.
k) The occupied bandwidth shall be reported by providing plot(s) of the measuring instrument display; the plot
axes and the scale units per division shall be clearly labeled. Tabular data may be reported in addition to the
plot(s).
REPORT NO.: STR16108134I-4
PAGE 28 OF 56
FCC PART 15.247
Model: LJ-C2
8.3 Environmental Conditions
Temperature:
25 C
Relative Humidity:
53
ATM Pressure:
1018 mbar
8.4 Summary of Test Results/Plots
Test Mode
Test Channel
MHz
20 dB Bandwidth
kHz
99% Bandwidth
kHz
Result
2402
1144
962.2742
Pass
2441
1143
961.3487
Pass
2480
1128
969.2033
Pass
2402
1368
1217.0
Pass
2441
1364
1206.2
Pass
2480
1362
1201.7
Pass
GFSK
8DPSK
REPORT NO.: STR16108134I-4
PAGE 29 OF 56
FCC PART 15.247
Model: LJ-C2
For GFSK
Low Channel:
Middle Channel:
REPORT NO.: STR16108134I-4
PAGE 30 OF 56
FCC PART 15.247
Model: LJ-C2
High Channel:
For 8DPSK
Low Channel:
REPORT NO.: STR16108134I-4
PAGE 31 OF 56
FCC PART 15.247
Model: LJ-C2
Middle Channel:
High Channel:
REPORT NO.: STR16108134I-4
PAGE 32 OF 56
FCC PART 15.247
Model: LJ-C2
9. RF Output Power
9.1 Standard Applicable
According to 15.247(b)(1). For frequency hopping systems operating in the 2400–2483.5 MHz band employing at
least 75 non-overlapping hopping channels, and all frequency hopping systems in the 5725–5850 MHz band: 1
watt. For all other frequency hopping systems in the 2400–2483.5 MHz band: 0.125 watts.
9.2 Test Procedure
According to ANSI C63.10-2013 section 7.8.5, the output power test method as follows.
Remove the antenna from the EUT and then connect a low loss RF cable from the antenna port to the spectrum
analyzer.
This is an RF-conducted test to evaluate maximum peak output power. Use a direct connection between the
antenna port of the unlicensed wireless device and the spectrum analyzer, through suitable attenuation. The
hopping shall be disabled for this test:
a) Use the following spectrum analyzer settings:
1) Span: Approximately five times the 20 dB bandwidth, centered on a hopping channel.
2) RBW > 20 dB bandwidth of the emission being measured.
3) VBW ≥ RBW.
4) Sweep: Auto.
5) Detector function: Peak.
6) Trace: Max hold.
b) Allow trace to stabilize.
c) Use the marker-to-peak function to set the marker to the peak of the emission.
d) The indicated level is the peak output power, after any corrections for external attenuators and cables.
e) A plot of the test results and setup description shall be included in the test report.
9.3 Environmental Conditions
Temperature:
24 C
Relative Humidity:
55
ATM Pressure:
1011 mbar
9.4 Summary of Test Results/Plots
REPORT NO.: STR16108134I-4
PAGE 33 OF 56
FCC PART 15.247
Model: LJ-C2
For GFSK
Channel
Frequency
MHz
Measured Value
dBm
Output Power
mW
Limit
mW
Low Channel
2402
-7.458
0.18
1000
Middle Channel
2441
-0.722
0.85
1000
High Channel
2480
-3.481
0.45
1000
Channel
Frequency
MHz
Measured Value
dBm
Output Power
mW
Limit
mW
Low Channel
2402
-8.355
0.15
1000
Middle Channel
2441
-1.969
0.64
1000
High Channel
2480
-4.702
0.34
1000
Channel
Frequency
MHz
Measured Value
dBm
Output Power
mW
Limit
mW
Low Channel
2402
-8.466
0.14
1000
Middle Channel
2441
-1.956
0.64
1000
High Channel
2480
-2.108
0.62
1000
For Pi/4 QDPSK
For 8DPSK
Note: the antenna gain of 1dBi less than 6dBi maximum permission antenna gain value based on 1 watt peak
output power limit.
REPORT NO.: STR16108134I-4
PAGE 34 OF 56
FCC PART 15.247
Model: LJ-C2
For GFSK
Low Channel
Middle Channel
REPORT NO.: STR16108134I-4
PAGE 35 OF 56
FCC PART 15.247
Model: LJ-C2
High Channel
For Pi/4 QDPSK
Low Channel
REPORT NO.: STR16108134I-4
PAGE 36 OF 56
FCC PART 15.247
Model: LJ-C2
Middle Channel
High Channel
REPORT NO.: STR16108134I-4
PAGE 37 OF 56
FCC PART 15.247
Model: LJ-C2
For 8DPSK
Low Channel
Middle Channel
REPORT NO.: STR16108134I-4
PAGE 38 OF 56
FCC PART 15.247
Model: LJ-C2
High Channel
REPORT NO.: STR16108134I-4
PAGE 39 OF 56
FCC PART 15.247
Model: LJ-C2
10. Field Strength of Spurious Emissions
10.1 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.
10.2 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.: STR16108134I-4
PAGE 40 OF 56
FCC PART 15.247
Model: LJ-C2
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
10.3 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
10.4 Environmental Conditions
Temperature:
25 C
Relative Humidity:
52
ATM Pressure:
1012 mbar
REPORT NO.: STR16108134I-4
PAGE 41 OF 56
FCC PART 15.247
Model: LJ-C2
10.5 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.
All test modes (different data rate and different modulation) are performed, but only the worst case is recorded in
this report.
Plot of Radiated Emissions Test Data (30MHz to 1GHz)
EUT:
Intelligent Car Terminal
Tested Model:
LJ-C2
Operating Condition:
Transmitting Low Channel (2402MHz)
Comment:
DC 12V
Test Specification:
No.
Horizontal
Frequency
Reading
Correct
Result
Limit
Margin
Degree
Height
(MHz)
(dBuV/m)
Factor(dB)
(dBuV/m)
(dBuV/m)
(dB)
( º)
(cm)
54.0711
18.84
5.04
23.88
40.00
-16.12
360
100
peak
124.1330
15.50
4.48
19.98
43.50
-23.52
360
100
peak
143.8295
16.86
3.01
19.87
43.50
-23.63
360
100
peak
239.9874
16.24
8.93
25.17
46.00
-20.83
360
100
peak
341.9787
15.65
11.43
27.08
46.00
-18.92
360
100
peak
618.5369
16.29
17.46
33.75
46.00
-12.25
360
100
peak
REPORT NO.: STR16108134I-4
PAGE 42 OF 56
Remark
FCC PART 15.247
Model: LJ-C2
Test Specification:
No.
Vertical
Frequency
Reading
Correct
Result
Limit
Margin
Degree
Height
(MHz)
(dBuV/m)
Factor(dB)
(dBuV/m)
(dBuV/m)
(dB)
( º)
(cm)
47.8260
21.23
4.96
26.19
40.00
-13.81
360
100
peak
71.8320
21.29
2.65
23.94
40.00
-16.06
360
100
peak
95.7622
22.39
4.29
26.68
43.50
-16.82
360
100
peak
143.8295
20.28
3.01
23.29
43.50
-20.21
360
100
peak
627.2738
15.55
17.61
33.16
46.00
-12.84
360
100
peak
779.6068
18.40
16.80
35.20
46.00
-10.80
360
100
peak
REPORT NO.: STR16108134I-4
PAGE 43 OF 56
Remark
FCC PART 15.247
Model: LJ-C2
Operating Condition:
Comment:
Transmitting Middle Channel (2441MHz)
DC 12V
Test Specification:
Horizontal
No.
Frequency
Reading
Correct
Result
Limit
Margin
Degree
Height
(MHz)
(dBuV/m)
Factor(dB)
(dBuV/m)
(dBuV/m)
(dB)
( º)
(cm)
55.2207
18.12
5.02
23.14
40.00
-16.86
360
100
peak
83.8156
18.13
2.36
20.49
40.00
-19.51
360
100
peak
143.8295
16.10
3.01
19.11
43.50
-24.39
360
100
peak
242.5253
16.52
9.03
25.55
46.00
-20.45
360
100
peak
515.4374
15.39
13.76
29.15
46.00
-16.85
360
100
peak
651.9417
16.23
17.77
34.00
46.00
-12.00
360
100
peak
REPORT NO.: STR16108134I-4
PAGE 44 OF 56
Remark
FCC PART 15.247
Model: LJ-C2
Test Specification:
No.
Vertical
Frequency
Reading
Correct
Result
Limit
Margin
Degree
Height
(MHz)
(dBuV/m)
Factor(dB)
(dBuV/m)
(dBuV/m)
(dB)
( º)
(cm)
54.0711
20.56
5.04
25.60
40.00
-14.40
360
100
peak
71.8320
20.67
2.65
23.32
40.00
-16.68
360
100
peak
96.0986
23.55
4.34
27.89
43.50
-15.61
360
100
peak
143.8295
20.65
3.01
23.66
43.50
-19.84
360
100
peak
677.5798
15.16
18.55
33.71
46.00
-12.29
360
100
peak
744.8661
14.87
18.81
33.68
46.00
-12.32
360
100
peak
REPORT NO.: STR16108134I-4
PAGE 45 OF 56
Remark
FCC PART 15.247
Model: LJ-C2
Operating Condition:
Comment:
Transmitting High Channel (2480MHz)
DC 12V
Test Specification:
Horizontal
No.
Frequency
Reading
Correct
Result
Limit
Margin
Degree
Height
(MHz)
(dBuV/m)
dB/m
(dBuV/m)
(dBuV/m)
(dB)
( º)
(cm)
55.2207
18.82
5.02
23.84
40.00
-16.16
360
100
peak
95.7622
16.70
4.29
20.99
43.50
-22.51
360
100
peak
240.8304
16.83
8.96
25.79
46.00
-20.21
360
100
peak
417.6411
17.45
11.98
29.43
46.00
-16.57
360
100
peak
679.9600
14.99
18.68
33.67
46.00
-12.33
360
100
peak
731.9203
14.91
18.54
33.45
46.00
-12.55
360
100
peak
REPORT NO.: STR16108134I-4
PAGE 46 OF 56
Remark
FCC PART 15.247
Model: LJ-C2
Test Specification:
No.
Vertical
Frequency
Reading
Correct
Result
Limit
Margin
Degree
Height
(MHz)
(dBuV/m)
dB/m
(dBuV/m)
(dBuV/m)
(dB)
( º)
(cm)
47.9940
20.83
4.96
25.79
40.00
-14.21
360
100
peak
71.8320
21.19
2.65
23.84
40.00
-16.16
360
100
peak
95.7622
21.73
4.29
26.02
43.50
-17.48
360
100
peak
119.8556
18.27
4.82
23.09
43.50
-20.41
360
100
peak
143.8295
20.19
3.01
23.20
43.50
-20.30
360
100
peak
766.0572
16.02
17.79
33.81
46.00
-12.19
360
100
peak
REPORT NO.: STR16108134I-4
PAGE 47 OF 56
Remark
FCC PART 15.247
Model: LJ-C2
Spurious Emissions Above 1GHz
Frequency
Reading
Correct
Result
Limit
Margin
Polar
(MHz)
(dBuV/m)
dB
(dBuV/m)
(dBuV/m)
(dB)
H/V
Detector
Low Channel-2402MHz
4804
51.67
-3.87
47.80
74
-26.20
PK
4804
35.19
-3.87
31.32
54
-22.68
AV
7206
50.86
1.14
52.00
74
-22.00
PK
7206
34.97
1.19
36.16
54
-17.84
AV
4804
50.69
-3.86
46.83
74
-27.17
PK
4804
39.54
-3.86
35.68
54
-18.32
AV
7206
54.13
1.1
55.23
74
-18.77
PK
7206
40.69
1.1
41.79
54
-12.21
AV
Middle Channel-2441MHz
4882
57.81
-3.74
54.07
74
-19.93
PK
4882
46.53
-3.74
42.79
54
-11.21
AV
7323
53.49
1.47
54.96
74
-19.04
PK
7323
42.57
1.47
44.04
54
-9.96
AV
4882
56.42
-3.74
52.68
74
-21.32
PK
4882
45.38
-3.74
41.64
54
-12.36
AV
7323
54.63
1.47
56.10
74
-17.90
PK
7323
42.59
1.47
44.06
54
-9.94
AV
High Channel-2480MHz
4960
55.89
-3.59
52.30
74
-21.70
PK
4960
42.79
-3.59
39.20
54
-14.80
AV
7440
54.53
1.79
56.32
74
-17.68
PK
7440
41.67
1.79
43.46
54
-10.54
AV
4960
55.14
-3.59
51.55
74
-22.45
PK
4960
43.79
-3.59
40.20
54
-13.80
AV
7440
52.87
1.79
54.66
74
-19.34
PK
7440
41.69
1.79
43.48
54
-10.52
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.: STR16108134I-4
PAGE 48 OF 56
FCC PART 15.247
Model: LJ-C2
11. Out of Band Emissions
11.1 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).
11.2 Test Procedure
According to ANSI C63.10-2013 section 7.8.6, the Band-edge measurements for RF conducted emissions test
method as follows.
a) Connect the EMI receiver or spectrum analyzer to the EUT using an appropriate RF cable connected to the
EUT output. Configure the spectrum analyzer settings as described in step e) (be sure to enter all losses between
the unlicensed wireless device output and the spectrum analyzer).
b) Set the EUT to the lowest frequency channel (for the hopping on test, the hopping sequence shall include the
lowest frequency channel).
c) Set the EUT to operate at maximum output power and 100% duty cycle, or equivalent “normal mode of
operation” as specified in 6.10.3.
d) If using the radiated method, then use the applicable procedure(s) of 6.4, 6.5, or 6.6, and orient the EUT and
measurement antenna positions to produce the highest emission level.
e) Perform the test as follows:
1) Span: Wide enough to capture the peak level of the emission operating on the channel closest to the band
edge, as well as any modulation products that fall outside of the authorized band of operation.
2) Reference level: As required to keep the signal from exceeding the maximum instrument input mixer level
for linear operation. In general, the peak of the spectral envelope shall be more than [10 log (OBW/RBW)]
below the reference level. Specific guidance is given in 4.1.5.2.
3) Attenuation: Auto (at least 10 dB preferred).
4) Sweep time: Coupled.
5) Resolution bandwidth: 100 kHz.
6) Video bandwidth: 300 kHz.
7) Detector: Peak.
8) Trace: Max hold.
f) Allow the trace to stabilize. For the test with the hopping function turned ON, this can take several minutes to
achieve a reasonable probability of intercepting any emissions due to oscillator overshoot.
g) Set the marker on the emission at the band edge, or on the highest modulation product outside of the band, if
this level is greater than that at the band edge. Enable the marker-delta function, and then use the marker-to-peak
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FCC PART 15.247
Model: LJ-C2
function to move the marker to the peak of the in-band emission.
h) Repeat step c) through step e) for every applicable modulation.
i) Set the EUT to the highest frequency channel (for the hopping on test, the hopping sequence shall include the
highest frequency channel) and repeat step c) through step d).
j) The band-edge measurement shall be reported by providing plot(s) of the measuring instrument display; the plot
axes and the scale units per division shall be clearly labeled. Tabular data may be reported in addition to the
plot(s).
Restricted-band band-edge test method please refers to ANSI C63.10-2013 section 6.10.5. The 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 band-edge measurements.
According to ANSI C63.10-2013 section 7.8.8, Conducted spurious emissions shall be measured for the transmit
frequency, per 5.5 and 5.6, and at the maximum transmit powers.
Connect the primary antenna port through an attenuator to the spectrum analyzer input; in the results, account for
all losses between the unlicensed wireless device output and the spectrum analyzer. The instrument shall span 30
MHz to 10 times the operating frequency in GHz, with a resolution bandwidth of 100 kHz, video bandwidth of
300 kHz, and a coupled sweep time with a peak detector. The band 30 MHz to the highest frequency may be split
into smaller spans, as long as the entire spectrum is covered.
11.3 Environmental Conditions
Temperature:
23C
Relative Humidity:
54
ATM Pressure:
1011 mbar
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FCC PART 15.247
Model: LJ-C2
11.4 Summary of Test Results/Plots
Restricted Bandedge (Radiated)
Lowest Bandedge
Horizontal (Worst case)
No.
Frequency
Reading
Correct
Result
Limit
Margin
(MHz)
(dBuV/m)
Factor(dB)
(dBuV/m)
(dBuV/m)
(dB)
2310.000
33.50
-3.35
30.15
54.00
-23.85
Average Detector
2310.000
46.62
-3.35
43.27
74.00
-30.73
Peak Detector
2390.000
33.38
-4.29
29.09
54.00
-24.91
Average Detector
2390.000
46.18
-4.29
41.89
74.00
-32.11
Peak Detector
REPORT NO.: STR16108134I-4
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Remark
FCC PART 15.247
Model: LJ-C2
Highest Bandedge
Horizontal (Worst case)
No.
Frequency
Reading
Correct
Result
Limit
Margin
(MHz)
(dBuV/m)
Factor(dB)
(dBuV/m)
(dBuV/m)
(dB)
2479.972
87.26
-4.36
82.90
Average Detector
2479.819
93.57
-4.36
89.21
Peak Detector
2483.500
48.73
-4.36
44.37
54.00
-9.63
Average Detector
2483.500
54.73
-4.36
50.37
74.00
-23.63
Peak Detector
2500.000
33.47
-4.34
29.13
54.00
-24.87
Average Detector
2500.000
46.14
-4.34
41.80
74.00
-32.20
Peak Detector
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Remark
FCC PART 15.247
Model: LJ-C2
Worst mode DH1
Out of Bandedge and Spurious Emission (Conducted)
Lowest
REPORT NO.: STR16108134I-4
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FCC PART 15.247
Model: LJ-C2
Middle Channel
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FCC PART 15.247
Model: LJ-C2
Highest
REPORT NO.: STR16108134I-4
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FCC PART 15.247
Model: LJ-C2
Out of Bandedge with Hopping on:
Lowest Bandedge
Highest Bandedge
***** END OF REPORT *****
REPORT NO.: STR16108134I-4
PAGE 56 OF 56
FCC PART 15.247
Download: LJ-C2 Intelligent Car Terminal Test Report FCC Part 15.247B Beijing iLeja Tech.Co.Ltd.
Mirror Download [FCC.gov]LJ-C2 Intelligent Car Terminal Test Report FCC Part 15.247B Beijing iLeja Tech.Co.Ltd.
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