LCS180529041AEB report-DTS

FCC ID: 2APP6AG-40A

Test Report

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FCCID_3906016

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2APP6AG-40A Report No.: LCS180529041AEB

FCC TEST REPORT

For

Aroma Music Co., Ltd.
ACOUSTIC GUITAR AMP
Test Model: AG-40A

Prepared for : Aroma Music Co., Ltd.
Address : Floor 6 , Building 56 Baotian Industry Zone, Baotian 3 Road Bao An
District, Shenzhen 518102 China

Prepared by : Shenzhen LCS Compliance Testing Laboratory Ltd.
Address : 1/F., Xingyuan Industrial Park, Tongda Road, Bao'an Avenue, Bao'an
District, Shenzhen, Guangdong, China
Tel : (+86)755-82591330
Fax : (+86)755-82591332
Web : www.LCS-cert.com
Mail : webmaster@LCS-cert.com

Date of receipt of test sample : May 31, 2018
Number of tested samples : 1
Serial number : Prototype
Date of Test : May 31, 2018~ June 11, 2018
Date of Report : June 13, 2018

This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.
Page 1 of 32

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2APP6AG-40A Report No.: LCS180529041AEB

FCC -- TEST REPORT

June 13, 2018
Test Report No. : LCS180529041AEB Date of issue

Type / Model........................... : AG-40A

EUT......................................... : ACOUSTIC GUITAR AMP

Applicant............................... : Aroma Music Co., Ltd.
Address.................................. : Floor 6 , Building 56 Baotian Industry Zone, Baotian 3 Road Bao An
District, Shenzhen 518102 China
Telephone............................... : /
Fax.......................................... : /

Manufacturer........................ : Aroma Music Co., Ltd.
Address................................... : Floor 6 , Building 56 Baotian Industry Zone, Baotian 3 Road Bao An
District, Shenzhen 518102 China
Telephone............................... : /
Fax.......................................... : /

Factory................................... : Aroma Music Co., Ltd.
Address................................... : Floor 6 , Building 56 Baotian Industry Zone, Baotian 3 Road Bao An
District, Shenzhen 518102 China
Telephone............................... : /
Fax.......................................... : /

Test Result 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: 2APP6AG-40A Report No.: LCS180529041AEB

Revision History

Revision Issue Date Revisions Revised By
000 June 13, 2018 Initial Issue Gavin Liang

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2APP6AG-40A Report No.: LCS180529041AEB

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 ......................................................................................................................................... 6
1.4. DESCRIPTION OF TEST FACILITY ........................................................................................................................ 6
1.5. STATEMENT OF THE MEASUREMENT UNCERTAINTY .......................................................................................... 7
1.6. MEASUREMENT UNCERTAINTY ........................................................................................................................... 7
1.7. DESCRIPTION OF TEST MODES .......................................................................................................................... 7
2. TEST METHODOLOGY ......................................................................................................................................... 8
2.1. EUT CONFIGURATION......................................................................................................................................... 8
2.2. EUT EXERCISE ................................................................................................................................................... 8
2.3. GENERAL TEST PROCEDURES ........................................................................................................................... 8
3. SYSTEM TEST CONFIGURATION ...................................................................................................................... 9
3.1. JUSTIFICATION..................................................................................................................................................... 9
3.2. EUT EXERCISE SOFTWARE ................................................................................................................................ 9
3.3. SPECIAL ACCESSORIES ...................................................................................................................................... 9
3.4. BLOCK DIAGRAM/SCHEMATICS........................................................................................................................... 9
3.5. EQUIPMENT MODIFICATIONS .............................................................................................................................. 9
3.6. TEST SETUP ........................................................................................................................................................ 9
4. SUMMARY OF TEST RESULTS ........................................................................................................................ 10
5. TEST RESULT ....................................................................................................................................................... 11
5.1. ON TIME AND DUTY CYCLE .............................................................................................................................. 11
5.2. MAXIMUM CONDUCTED OUTPUT POWER MEASUREMENT ............................................................................... 12
5.3. POWER SPECTRAL DENSITY MEASUREMENT .................................................................................................. 13
5.4. 6 DB SPECTRUM BANDWIDTH MEASUREMENT ................................................................................................ 14
5.5. RADIATED EMISSIONS MEASUREMENT ............................................................................................................. 15
5.6. CONDUCTED SPURIOUS EMISSIONS AND BAND EDGES TEST ......................................................................... 24
5.7. AC POWER LINE CONDUCTED EMISSIONS ........................................................................................................ 25
5.8. BAND-EDGE MEASUREMENTS FOR RADIATED EMISSIONS ................................................................................ 27
5.9. ANTENNA REQUIREMENTS ................................................................................................................................ 29
6. LIST OF MEASURING EQUIPMENTS .............................................................................................................. 31
7. TEST SETUP PHOTOGRAPHS OF EUT .......................................................................................................... 32
8. EXTERIOR PHOTOGRAPHS OF THE EUT ..................................................................................................... 32
9. INTERIOR PHOTOGRAPHS OF THE EUT ...................................................................................................... 32

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: 2APP6AG-40A Report No.: LCS180529041AEB
NVLAP Registration Code is 600167-0

The 3m-Semi anechoic test site fulfils CISPR 16-1-4 according to ANSI C63.10:2013 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 Frequency Range Uncertainty Note
9KHz~30MHz ±3.10dB (1)
30MHz~200MHz ±2.96dB (1)
Radiation Uncertainty : 200MHz~1000MHz ±3.10dB (1)
1GHz~26.5GHz ±3.80dB (1)
26.5GHz~40GHz ±3.90dB (1)
Conduction Uncertainty : 150kHz~30MHz ±1.63dB (1)
Power disturbance : 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.

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.
Pre-test AC conducted emission at both voltage AC 120V/60Hz and AC 240V/50Hz, recorded worst case.
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, which was determined to be BT LE mode (Low Channel).
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 BT LE 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:
BT LE: 1 Mbps, GFSK.

BLE 4.1

Frequency Band Channel No. Frequency(MHz) Channel No. Frequency(MHz)
0 2402 20 2442
1 2404 -- --
2 2406 -- --
2402~2480MHz
-- -- 37 2476
-- -- 38 2478
19 2440 39 2480

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2APP6AG-40A Report No.: LCS180529041AEB

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 is 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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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2APP6AG-40A Report No.: LCS180529041AEB

3. SYSTEM TEST CONFIGURATION
3.1. Justification
The system was configured for testing in a continuous transmit condition. The duty cycle is 100% and the
average correction factor is 0.

3.2. EUT Exercise Software
The system was configured for testing in a continuous transmits condition and change test channels by
software (BQB Test Tool) provided by application.

3.3. Special Accessories
Serial
Description Model Certificate
Manufacturer Number
Lenovo PC B470 -- DOC
Lenovo AC/DC ADAPTER ADP-90DDB -- DOC

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: 2APP6AG-40A Report No.: LCS180529041AEB

4. SUMMARY OF TEST RESULTS

Applied Standard: FCC Part 15 Subpart C
FCC Rules Description of Test Result
§15.247(b) Maximum Conducted Output Power 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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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2APP6AG-40A Report No.: LCS180529041AEB

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.

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: 2APP6AG-40A Report No.: LCS180529041AEB

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.

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: 2APP6AG-40A Report No.: LCS180529041AEB

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.

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: 2APP6AG-40A Report No.: LCS180529041AEB

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.

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: 2APP6AG-40A Report No.: LCS180529041AEB

5.5.6. Results of Radiated Emissions (9 KHz~30MHz)

Temperature 23.8℃ Humidity 53.7%
Test Engineer Tom Liu Configurations BT LE

Freq. Level Over Limit Over Limit
(MHz) (dBuV) (dB) (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 23.8℃ Humidity 53.7%
Test Engineer Tom Liu Configurations BT LE (Low CH)

Test result for BT LE (Low Channel)

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2APP6AG-40A Report No.: LCS180529041AEB

5.5.8. Results for Radiated Emissions (Above 1GHz)

BT LE
Channel 0 / 2402 MHz
Ant. Pre. Cab.
Freq. Reading Measured Limit Margin
Fac. Fac. Loss Remark Pol.
MHz dBuV dBuV/m dBuV/m dB
dB/m dB dB
4804.00 54.34 33.06 35.04 3.94 56.30 74.00 -17.70 Peak Horizontal
4804.00 39.13 33.06 35.04 3.94 41.09 54.00 -12.91 Average Horizontal
4804.00 57.49 33.06 35.04 3.94 59.45 74.00 -14.55 Peak Vertical
4804.00 41.79 33.06 35.04 3.94 43.75 54.00 -10.25 Average Vertical

Channel 19 / 2440 MHz
Ant. Pre. Cab.
Freq. Reading Measured Limit Margin
Fac. Fac. Loss Remark Pol.
MHz dBuV dBuV/m dBuV/m dB
dB/m dB dB
4880.00 54.99 33.16 35.15 3.96 56.96 74.00 -17.04 Peak Horizontal
4880.00 43.38 33.16 35.15 3.96 45.35 54.00 -8.65 Average Horizontal
4880.00 60.85 33.16 35.15 3.96 62.82 74.00 -11.18 Peak Vertical
4880.00 41.28 33.16 35.15 3.96 43.25 54.00 -10.75 Average Vertical

Channel 39 / 2480 MHz
Ant. Pre. Cab.
Freq. Reading Measured Limit Margin
Fac. Fac. Loss Remark Pol.
MHz dBuV dBuV/m dBuV/m dB
dB/m dB dB
4960.00 54.68 33.26 35.14 3.98 56.78 74.00 -17.22 Peak Horizontal
4960.00 41.15 33.26 35.14 3.98 43.25 54.00 -10.75 Average Horizontal
4960.00 60.74 33.26 35.14 3.98 62.84 74.00 -11.16 Peak Vertical
4960.00 42.89 33.26 35.14 3.98 44.99 54.00 -9.01 Average Vertical

Notes:
1). Measuring frequencies from 9 KHz~10th harmonic or 26.5GHz (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 26.5GHz (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.

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: 2APP6AG-40A Report No.: LCS180529041AEB

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 equipment list in this report. The following table is the setting of the spectrum analyzer.

Spectrum Parameter Setting
Detector Peak
Attenuation Auto
RB / VB (Emission in restricted band) 100KHz/300KHz
RB / VB (Emission in non-restricted band) 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 26.5GHz 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

Frequency Spurious RF Conducted Emission Limits
Test Mode Channel Verdict
(MHz) (dBc) (dBc)
0 2402 <-20
GFSK - BLE 19 2440 <-20 -20 PASS
39 2480 <-20
Remark:
1. Measured RF conducted spurious emissions at difference data rate for each mode and recorded worst
case for each mode.
2. Test results including cable loss;
3. “---“means that the fundamental frequency not for 15.209 limits requirement.
4. The test data Please see the appendix of RF Conducted Spurious Emissions B.6
5. The test data Please see the appendix of Band-edge for RF Conducted Emissions B.7

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: 2APP6AG-40A Report No.: LCS180529041AEB

5.7. AC 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 Limits (dBμV)
(MHz) Quasi-peak Average
0.15 to 0.50 66 to 56 56 to 46
0.50 to 5 56 46
5 to 30 60 50

* Decreasing linearly with the logarithm of the frequency

5.7.2 Block Diagram of Test Setup

Vert. reference
plane
EMI receiver

EUT

LISN Reference ground plane

5.7.3 Test Results

PASS
The test data please refer to following page.

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: 2APP6AG-40A Report No.: LCS180529041AEB
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

Remark:
1. Test results including cable loss;
2. “---“means that the fundamental frequency not for 15.209 limits requirement.
3. Average Values = Average Reading Values - Duty Cycle Factor
4. The test data Please see the appendix of Restrict-band band-edge measurements B.8

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: 2APP6AG-40A Report No.: LCS180529041AEB

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 directional gains of antenna used for transmitting is -5.47dBi, and the antenna is an internal antenna
connect to PCB board and no consideration of replacement. Please see EUT photo for details.

5.9.2.3. Results: Compliance.

Measurement
The antenna gain of the complete system is calculated by the difference of radiated power in EIRP and
the conducted power of the module.
Conducted power refers ANSI C63.10:2013 Output power test procedure for DTS devices.
Radiated power refers to ANSI C63.10:2013 Radiated emissions tests.

Measurement parameters

Measurement parameter
Detector: Peak
Sweep Time: Auto
Resolution bandwidth: 1MHz
Video bandwidth: 3MHz
Trace-Mode: Max hold

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: 2APP6AG-40A Report No.: LCS180529041AEB

Limits

FCC ISED
Antenna Gain
6 dBi

Note: The antenna gain of the complete system is calculated by the difference of radiated power in EIRP
and the conducted power of the module.

Lowest Channel Middle Channel Highest Channel
Tnom Vnom
2402 MHz 2440 MHz 2480 MHz
Conducted power [dBm]
Measured with 2.661 3.851 4.302
GFSK modulation
Radiated power [dBm]
Measured with -3.203 -2.158 -1.811
GFSK modulation
Gain [dBi] Calculated -5.864 -6.009 -6.113
Measurement uncertainty ± 1.6 dB (cond.) / ± 3.8 dB (rad.)

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: 2APP6AG-40A Report No.: LCS180529041AEB

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---------------

This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.
Page 32 of 32

Document Created: 2019-11-20 15:39:52
Document Modified: 2019-11-20 15:39:52

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