DDT-R17110607-1E1 C88-HM55 FCC ID Report

FCC ID: 2AILYC88HM

Test Report

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FCCID_3844021

Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R17110607-1E1

TABLE OF CONTENTS

Test report declares......................................................................................................3
1 Summary of test results ................................................................................................ 5
2 General test information ............................................................................................... 6
2.1. Description of EUT........................................................................................................ 6
2.2. Accessories of EUT ...................................................................................................... 6
2.3. Assistant equipment used for test ................................................................................. 6
2.4. Block diagram of EUT configuration for test ................................................................. 6
2.5. Deviations of test standard ........................................................................................... 6
2.6. Test environment conditions ......................................................................................... 7
2.7. Test laboratory .............................................................................................................. 7
2.8. Measurement uncertainty ............................................................................................. 7
3 Equipment used during test .......................................................................................... 8
4 20dB Bandwidth............................................................................................................ 9
4.1. Block diagram of test setup .......................................................................................... 9
4.2. Limits ............................................................................................................................ 9
4.3. Test Procedure ............................................................................................................. 9
4.4. Test Result ................................................................................................................... 9
4.5. Original test data........................................................................................................... 9
5 Stop transmitting time test .......................................................................................... 10
5.1. Block diagram of test setup ........................................................................................ 10
5.2. Limits .......................................................................................................................... 10
5.3. Test Procedure ........................................................................................................... 10
5.4. Test Result ................................................................................................................. 10
5.5. Original test data......................................................................................................... 10
6 Radiated emission ...................................................................................................... 11
6.1. Block diagram of test setup ........................................................................................ 11
6.2. Limit ............................................................................................................................ 12
6.3. Test Procedure ........................................................................................................... 13
6.4. Test result ................................................................................................................... 15
7 Power Line Conducted Emission ................................................................................ 19
7.1. Block diagram of test setup ........................................................................................ 19
7.2. Power Line Conducted Emission Limits ...................................................................... 19
7.3. Test Procedure ........................................................................................................... 19
7.4. Test Result ................................................................................................................. 20
8 Antenna Requirements ............................................................................................... 21
9 Test setup photograph ................................................................................................ 22
10 Photos of the EUT ...................................................................................................... 23

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Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R17110607-1E1

Revision history

Rev. Revisions Issue Date Revised By

--- Initial issue Apr. 23, 2018

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Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R17110607-1E1

1 Summary of test results
Description of Test Item Standard Results
FCC Part 15: 15.215
20dB Bandwidth PASS
ANSI C63.10:2013

Stop Transmitting Time Test FCC Part 15C: 15.231(a)(1) PASS

FCC Part 15: 15.209
Radiated Emission FCC Part 15: 15.231(b) PASS
ANSI C63.10:2013

Power Line Conducted Emissions FCC Part 15: 15.207 N/A
ANSI C63.10:2013

Antenna requirement FCC Part 15: 15.203 PASS

Note: N/A is an abbreviation for Not Applicable.

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Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R17110607-1E1

2.6. Test environment conditions
During the measurement the environmental conditions were within the listed ranges:
Temperature range: 21-25℃
Humidity range: 40-75%
Pressure range: 86-106kPa

2.7. Test laboratory
Dongguan Dongdian Testing Service Co., Ltd
Add: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City,
Guangdong Province, China, 523808
Tel: +86-0769-89201699, http://www.dgddt.com, Email: ddt@dgddt.com
CNAS Accreditation No. L6451; A2LA Accreditation No. 3870.01
Designation Number: CN1182; Test Firm Registration Number: 540522
Industry Canada site registration number: 10288A-1

2.8. Measurement uncertainty
Test Item Uncertainty
Bandwidth 1.1%
0.86dB (10 MHz ≤ f < 3.6GHz);
Peak Output Power(Conducted)(Spectrum analyzer)
1.38dB (3.6GHz ≤ f < 8GHz)
Peak Output Power(Conducted)(Power Sensor) 0.74dB
0.74dB (10 MHz ≤ f < 3.6GHz);
Power Spectral Density
1.38dB (3.6GHz ≤ f < 8GHz)
6.7 x 10-8 (Antenna couple method)
Frequencies Stability
5.5 x 10-8 (Conducted method)
0.86dB (10 MHz ≤ f < 3.6GHz);
Conducted spurious emissions 1.40dB (3.6GHz ≤ f < 8GHz)
1.66dB (8GHz≤ f < 22GHz)
Uncertainty for radio frequency (RBW<20kHz) 3×10-8
Temperature 0.4℃
Humidity 2%
Uncertainty for Radiation Emission test 4.70 dB (Antenna Polarize: V)
(30MHz-1GHz) 4.84 dB (Antenna Polarize: H)
4.10dB (1-6GHz)
Uncertainty for Radiation Emission test 4.40dB (6GHz-18GHz)
(1GHz-40GHz) 3.54dB (18GHz-26GHz)
4.30dB (26GHz-40GHz)
Uncertainty for Power line conduction emission test 3.32dB (150kHz-30MHz)
Note: This uncertainty represents an expanded uncertainty expressed at approximately the 95%
confidence level using a coverage factor of k=2.

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Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R17110607-1E1

4 20dB Bandwidth

4.1. Block diagram of test setup

Spectrum Wireless
EUT
Analyzer connection

4.2. Limits
The bandwidth of the emission shall be no wider than 0.25% of the center frequency of devices
operation above 70MHz and below 900MHz.

4.3. Test Procedure
(1) Connect EUT’s antenna output to spectrum analyzer by RF cable.
(2) The bandwidth of the fundamental frequency was measured by spectrum analyzer with
30kHz RBW and 100kHz VBW. The 20dB bandwidth is defined as the total spectrum the
power of which is higher than peak power minus 20dB.

4.4. Test Result
Limit(MHz): No wider than
Frequency (MHz) 20 dB Bandwidth (MHz) 0.25% of the center Conclusion
frequency
433.92 0.119 433.92*0.25%=1.0848MHz PASS

4.5. Original test data

Graphs
* RBW 30 kHz Marker 1 [T1 ]
* VBW 100 kHz -28.47 dBm
Ref 0 dBm * Att 0 dB SWT 5 ms 434.028846154 MHz

0 Offset 12.6 dB OBW118.589743590 kHz
Temp 1 [T1 OBW]
-48.63 dBm A
-10
433.969679487 MHz
1 PK Temp 2 [T1 OBW]
VIEW
-20 -47.37 dBm
LVL
434.088269231 MHz
1

-30

-40
T2
T1
-50

3DB
-60

-70

-80

-90

-100

Center 433.92 MHz 100 kHz/ Span 1 MHz

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Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R17110607-1E1

(2) FCC 15.209 Limit.

FREQUENCY DISTANCE FIELD STRENGTHS LIMIT
MHz Meters
μV/m dB(μV)/m
0.009 ~ 0.490 300 2400/F(kHz) 67.6-20log(F)
0.490 ~ 1.705 30 24000/F(kHz) 87.6-20log(F)
1.705 ~ 30.0 30 30 29.54
30 ~ 88 3 100 40.0
88 ~ 216 3 150 43.5
216 ~ 960 3 200 46.0
960 ~ 1000 3 500 54.0
74.0 dB(μV)/m (Peak)
Above 1000 3
54.0 dB(μV)/m (Average)

(3) FCC 15.231 section (b) limit

Fundamental Frequency Field Strength of Field Strength of Spurious
(MHz) Fundamental emissions
30MHz~1GHz:
QP 60.83dBuV/m @3m
AV:80.83dBuV/m @3m
433.92 Above 1G:
PK:100.83dBuV/m @3m
AV:60.83dBuV/m @3m
PK:80.83dBuV/m @3m

Note: (1)The emission limits shown in the above table are based on measurements employing a
CISPR QP detector except for the frequency bands 9-90kHz, 110-490kHz and above
1000MHz.Radiated emissions limits in these three bands are based on measurements employing
an average detector.
(2) At frequencies below 30MHz, measurement may be performed at a distance closer then that
specified, and the limit at closer measurement distance can be extrapolated by below formula:
Limit3m(dBuV/m)= Limit300m(dBuV/m) + 40Log(300m/3m) = Limit300m(dBuV/m) + 80
Limit3m(dBuV/m)= Limit30m(dBuV/m) + 40Log(30m/3m) = Limit30m(dBuV/m) + 40

(3) Limit for this EUT
All the emissions appearing within 15.205 restricted frequency bands shall not exceed the limits
shown in 15.209, all the other emissions include fundamental emission shall not exceed FCC
15.231 section (b) limit of comply with FCC 15.209 limit which permit higher emission level.

6.3. Test Procedure
(1) EUT was placed on a non-metallic table, 80 cm above the ground plane inside a
semi-anechoic chamber for blow 1G and 150 cm above the ground plane inside a
semi-anechoic chamber for above 1G.
(2) Test antenna was located 3m from the EUT on an adjustable mast, and the antenna used as
below table.

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Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R17110607-1E1

Test frequency range Test antenna used Test antenna distance
9kHz-30MHz Active Loop antenna 3m
30MHz-1GHz Trilog Broadband Antenna 3m
1GHz-18GHz Double Ridged Horn 3m
Antenna(1GHz-18GHz)
18GHz-40GHz Horn 1m
Antenna(18GHz-40GHz)

According ANSI C63.10:2013 clause 6.4.4.2 and 6,5.3, for measurements below 30 MHz, the
loop antenna was positioned with its plane vertical from the EUT and rotated about its vertical
axis for maximum response at each azimuth position around the EUT. And the loop antenna also
be positioned with its plane horizontal at the specified distance from the EUT. The center of the
loop is 1 m above the ground for measurement above 30MHz, the Trilog Broadband Antenna or
Horn Antenna was located 3m from EUT, Measurements were made with the antenna positioned
in both the horizontal and vertical planes of Polarization, and the measurement antenna was
varied from 1 m to 4 m. in height above the reference ground plane to obtain the maximum signal
strength.
(3) Below pre-scan procedure was first performed in order to find prominent frequency spectrum
radiated emissions from 9kHz to 5GHz (tenth harmonic of fundamental frequency):
(a) Scanning the peak frequency spectrum with the antenna specified in step (3), and the EUT
was rotated 360 degree, the antenna height was varied from 1m to 4m(Except loop antenna, it’s
fixed 1m above ground.)
(b) Change work frequency or channel of device if practicable.
(c) Change modulation type of device if practicable.
(d) Change power supply range from 85% to 115% of the rated supply voltage
(e) Rotated EUT though three orthogonal axes to determine the attitude of EUT arrangement
produces highest emissions.
(4) For final emissions measurements at each frequency of interest, the EUT was rotated and the
antenna height was varied between 1m and 4m in order to maximize the emission.
Measurements in both horizontal and vertical polarities were made and the data was recorded.
In order to find the maximum emission, the relative positions of equipments and all of the
interface cables were changed according to ANSI C63.10 2013 on Radiated Emission test.
(5) The emissions from 9kHz to 1GHz were measured based on CISPR QP detector except for
the frequency bands 9-90kHz, 110-490kHz, for emissions from 9kHz-90kHz,110kHz-490kHz
and above 1GHz were measured based on average detector, for emissions above 1GHz,
peak emissions also be measured and need comply with Peak limit.
(6) The emissions from 9kHz to 1GHz, QP or average values were measured with EMI receiver
with below RBW.

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Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R17110607-1E1

Frequency band RBW
9kHz-150kHz 200Hz
150kHz-30MHz 9kHz
30MHz-1GHz 120kHz

(7) For emissions above 1GHz, both Peak and Average level were measured with Spectrum
Analyzer, and the RBW is set at 1MHz, VBW is set at 3MHz for Peak measure; RMS detector
RBW 1MHz VBW 3MHz for Average measure(according ANSI C63.10:2013 clause 4.2.3.2.3
procedure for average measure).
(8) X axis, Y axis, Z axis are tested, and worse setup X axis is reported.

6.4. Test result
PASS. (See below detailed test result)

Note1: According exploratory test no any obvious emission were detected from 9kHz to 30MHz.
Note2: For emissions above 1GHz. If peak results comply with AV limit, AV Result is deemed to
comply with AV limit.

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Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R17110607-1E1

Field Strength Of The Fundamental Signal
PK Level AV Limit Line Over Limit
Frequency (MHz) Polarization
(dBuV/m) (dBuV/m) (dB)
433.92 37.90 80.83 -42.93 Horizontal
433.92 36.52 80.83 -44.31 Vertical
Note: For Field Strength Of The Fundamental Signal. If peak results comply with AV limit, AV Result is deemed to
comply with AV limit.

Radiated Emission test (above 1GHz)
Read Antenna PRM Cable Result Limit
Freq. Margin Detector
level Factor Factor Loss Level (dBµV/m Polarization
(MHz) (dB) type
(dBµV) (dB/m) (dB) (dB) (dBµV/m) )
Tx mode
1500.00 38.01 24.50 29.14 3.96 37.33 74.00 -36.67 Peak HORIZONTAL
2465.00 39.21 27.27 29.65 5.19 42.02 74.00 -31.98 Peak HORIZONTAL
3310.00 38.33 30.95 29.93 6.03 45.38 74.00 -28.62 Peak HORIZONTAL
3855.00 36.69 32.33 29.12 6.46 46.36 74.00 -27.64 Peak HORIZONTAL
4565.00 36.57 34.30 29.25 7.14 48.76 74.00 -25.24 Peak HORIZONTAL
5085.00 35.94 35.08 29.34 7.63 49.31 74.00 -24.69 Peak HORIZONTAL
1460.00 38.47 24.37 29.17 3.90 37.57 74.00 -36.43 Peak VERTICAL
2025.00 36.97 25.69 29.00 4.71 38.37 74.00 -35.63 Peak VERTICAL
2460.00 38.11 27.26 29.65 5.19 40.91 74.00 -33.09 Peak VERTICAL
2965.00 37.18 29.26 30.19 5.74 41.99 74.00 -32.01 Peak VERTICAL
3910.00 37.40 32.39 29.09 6.51 47.21 74.00 -26.79 Peak VERTICAL
4895.00 35.63 34.83 29.33 7.47 48.60 74.00 -25.40 Peak VERTICAL
Result: Pass
Note: 1. Result Level = Read Level + Antenna Factor + Cable loss - PRM Factor.
2: For emissions above 1GHz. If peak results comply with AV limit, AV Result is deemed to comply with AV
limit.

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Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R17110607-1E1

EUT and support equipment were set up on the test bench as per the configuration with highest
emission level in the preliminary test.
A scan was taken on both power lines, Neutral and Line, recording at least the six highest
emissions.
Emission frequency and amplitude were recorded into a computer in which correction factors
were used to calculate the emission level and compare reading to the applicable limit.
The test data of the worst-case condition(s) was recorded.
The bandwidth of test receiver is set at 9 kHz.

7.4. Test Result
Not Applicable

Conducted limits are not required for devices which only employ battery power for operation
according to 15.207(C)

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Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R17110607-1E1

8 Antenna Requirements
For intentional device, according to FCC 47 CFR Section 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
replaced by the user, but the use of a standard antenna jack or electrical connector is prohibited.

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Document Created: 2018-05-09 10:07:48
Document Modified: 2018-05-09 10:07:48

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