ATOM Smart Phone Test Report Measurement Report Shanghai Unihertz E-Commerce

Shanghai Unihertz E-Commerce Smart Phone

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RADIO TEST REPORT
Report No:STS1807042W18
Issued for
Shanghai Unihertz E-Commerce Co., Ltd
Room 302, No. 5, Lane 59, Shennan Rd, Minhang district,
Shanghai, China 201108
Product Name:
Smart phone
Brand Name:
Unihertz
Model Name:
Atom
Series Model:
N/A
FCC ID:
Test Standard:
2AK6CATOM
FCC Part 15.225
Any reproduction of this document must be done in full. No single part of this document may be reproduced without
permission from STS, All Test Data Presented in this report is only applicable to presented Test sample.
Shenzhen STS Test Services Co., Ltd.
1/F., Building B, Zhuoke Science Park, No.190, Chongqing Road,
Fuyong Street, Bao’an District, Shenzhen, Guangdong, China
TEL: +86-755 3688 6288 FAX: +86-755 3688 6277 E-mail:sts@stsapp.com
Report No.: STS1807042W18
Page 2 of 27
TEST REPORT CERTIFICATION
Applicant’s name ................. : Shanghai Unihertz E-Commerce Co., Ltd
Address .................................. : Room 302, No. 5, Lane 59, Shennan Rd, Minhang district,
Shanghai, China 201108
Manufacture's Name ............ : OBLUE Communication Technology Co.,Ltd.
Address .................................. : Room 406, Hivac Building,No. 2 North keji Rd,North Hi-Tech
Industry Park, Nanshan district, shenzhen, China 201108
Product description
Product Name ........................ : Smart phone
Brand Name ......................... : Unihertz
Model Name........................... : Atom
Series Model .......................... : N/A
Test Standards ..................... : FCC Part15.225
Test procedure ...............................ANSI
C63.10: 2013,ANSI C63.4: 2014
This device described above has been tested by STS, the test results show that the equipment
under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested
sample identified in the report.
This report shall not be reproduced except in full, without the written approval of STS, thidocument
only be altered or revised by STS, personal only, and shall be noted in the revision of the document.
Date of Test ............................................:
Date (s) of performance of tests..............:
25 July 2018~20 Aug. 2018
Date of Issue ...........................................:
20 Aug. 2018
Test Result ...............................................:
Pass
Testing Engineer
( Chris chen )
Technical Manager
( Sean she )
Authorized Signatory :
(Vita Li)
Page 3 of 27
Report No.: STS1807042W18
TABLE OF CONTENTS
1. SUMMARY OF TEST RESULTS
Page
1.1 TEST FACTORY
1.2 MEASUREMENT UNCERTAINTY
2. GENERAL INFORMATION
2.1 GENERAL DESCRIPTION OF EUT
2.2 DESCRIPTION OF TEST MODES
2.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED
2.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE)
2.5 EQUIPMENTS LIST FOR ALL TEST ITEMS
3. EMC EMISSION TEST
10
3.1 CONDUCTED EMISSION MEASUREMENT
10
3.2 TEST PROCEDURE
11
3.3 TEST SETUP
11
3.4 EUT OPERATING CONDITIONS
11
3.5 TEST RESULTS
12
4. RADIATED EMISSION MEASUREMENT
14
4.1 RADIATED EMISSION LIMITS
14
4.2 TEST PROCEDURE
15
4.3 TEST SETUP
16
4.4 EUT OPERATING CONDITIONS
16
5. FREQUENCY TOLERANCE
21
5.1 REQUIREMENT
21
5.2 TEST PROCEDURE
21
5.3 TEST SETUP
21
5.4 EUT OPERATION CONDITIONS
21
5.5 TEST RESULTS
22
6. 20DB BANDWIDTH
23
6.1 APPLIED PROCEDURES / LIMIT
23
6.2 TEST PROCEDURE
23
6.3 TEST SETUP
23
6.4 EUT OPERATION CONDITIONS
23
6.5 TEST RESULTS
24
Page 4 of 27
TABLE OF CONTENTS
7. ANTENNA REQUIREMENT
Report No.: STS1807042W18
Page
25
7.1 STANDARD REQUIREMENT
25
7.2 EUT ANTENNA
25
APPENDIX 1- PHOTOS OF TEST SETUP
26
Page 5 of 27
Report No.: STS1807042W18
1. SUMMARY OF TEST RESULTS
Test procedures according to the technical standards:
FCC Part15 15.225 , Subpart C
Standard
Section
Test Item
Judgment
Remark
15.207
Conducted Emission
PASS
--
15.209
15.225(a)(b)(c)(d)
Radiated Emission
PASS
--
15.225(e)
Frequency Tolerance
PASS
--
15.203
Antenna Requirement
PASS
--
15.215
20dB Bandwidth
PASS
--
NOTE:
(1)” N/A” denotes test is not applicable in this Test Report
(2) All tests are according to ANSI C63.4-2014 and ANSI C63.10-2013
1.1 TEST FACTORY
Shenzhen STS Test Services Co., Ltd.
1/F., Building B, Zhuoke Science Park, No.190, Chongqing Road,
Fuyong Street, Bao’an District, Shenzhen, Guangdong, China
CNAS Registration No.: L7649; FCC Registration No.: 625569
IC Registration No.: 12108A; A2LA Certificate No.: 4338.01;
1.2 MEASUREMENT UNCERTAINTY
The reported uncertainty of measurement y ± U,where expended uncertainty U is based on a
standard uncertainty multiplied by a coverage factor of k=2,providing a level of confidence of
approximately 95 %。
No.
Item
Uncertainty
Conducted Emission (9KHz-150KHz)
±2.88dB
Conducted Emission (150KHz-30MHz)
±2.67dB
RF power,conducted
±0.71dB
Spurious emissions,conducted
±0.63dB
All emissions,radiated (9KHz-30MHz)
±3.02dB
All emissions,radiated (30MHz-200MHz)
±3.80dB
All emissions,radiated (200MHz-1000MHz)
±3.97dB
Report No.: STS1807042W18
Page 6 of 27
2. GENERAL INFORMATION
2.1 GENERAL DESCRIPTION OF EUT
Product Name
Smart phone
Trade Name
Unihertz
Model Name
Atom
Serial Model
N/A
Model Difference
N/A
The EUT is a Smart phone
Operation Frequency: 13.56MHz
Product Description
Modulation Type:
FSK
Antenna Designation: Please see Note 3.
Antenna Gain (dBi)
0 dbi
Power supply and ADP(rating):
Input: AC100-240V, 300mA, 50/60Hz
Output: DC5V, 1500mA
Battery(rating):
Rated Voltage: 3.85V
Charge Limit: 4.4V
Capacity: 2000mAh
Adapter
Battery
Hardware version number
G35_V1.2
Software version number
alps-mp-01.mp1
Connecting I/O Port(s)
Please refer to the User's Manual
Note:
1. For a more detailed features description, please refer to the manufacturer’s specifications or
the User's Manual.
2. Table for filed Antenna
Ant.
Brand
Model Name
Antenna Type
Connector
Gain (dBi)
NOTE
Unihertz
Atom
PIFA Antenna
N/A
ANT.
Report No.: STS1807042W18
Page 7 of 27
2.2 DESCRIPTION OF TEST MODES
To investigate the maximum EMI emission characteristics generates from EUT, the test system
was pre-scanning tested base on the consideration of following EUT operation mode or test
configuration mode which possible have effect on EMI emission level. Each of these EUT
operation mode(s) or test configuration mode(s) mentioned above was evaluated respectively.
Pretest Mode
Description
Mode 1
TX Mode
For Conducted Test
Final Test Mode
Description
Mode 1
TX Mode
For Radiated Emission
Final Test Mode
Description
Mode 1
TX Mode
Note:
(1) The measurements are performed at all Bit Rate of Transmitter, the worst data was reported
(2) We have be tested for all avaiable U.S. voltage and frequencies(For 120V,50/60Hz
and 240V, 50/60Hz) for which the device is capable of operation.
2.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED
Radiated Spurious EmissionTest
E-1
EUT
Conducted Emission Test
AC
Plug
E-2
Adapter
C-1
E-1
EUT
Page 8 of 27
Report No.: STS1807042W18
2.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE)
The EUT has been tested as an independent unit together with other necessary accessories or
support units. The following support units or accessories were used to form a representative test
configuration during the tests.
Item
Equipment
Mfr/Brand
Model/Type No.
Series No.
Note
E-2
Adapter
Unihertz
HJ-0501500W2-US
N/A
N/A
Item
Shielded Type
Ferrite Core
Length
Note
C-1
USB Cable
shielded line
(Charging )
NO
100cm
N/A
Note:
(1)The support equipment was authorized by Declaration of Confirmation.
(2)For detachable type I/O cable should be specified the length in cm in『Length』column.
Report No.: STS1807042W18
Page 9 of 27
2.5 EQUIPMENTS LIST FOR ALL TEST ITEMS
Radiation Test equipment
Kind of Equipment
Manufacturer
Type No.
Serial No.
EMI Test Receiver
R&S
ESCI
102086
2017.10.15
2018.10.14
Bilog Antenna
TESEQ
CBL6111D
34678
2017.11.02
2018.11.01
Horn Antenna
Schwarzbeck
BBHA 9120D
(1201)
9120D-1343
2017.10.27
2018.10.26
ZHNAN
ZN3090C
16035
2018.03.11
2019.03.10
EM
EM330
60538
2018.03.11
2019.03.10
Agilent
8449B
60538
2017.10.15
2018.10.14
DARE
RPR3006W
15I00041SNO03
2017.10.15
2018.10.14
Changling
966
N/A
2017.10.15
2018.10.14
Passive Loop
(9K--30MHz)
Pre-mplifier
(0.1M-3GHz)
PreAmplifier
USB RF power
sensor
Semi-anechoic
chamber
Last calibration Calibrated until
Conduction Test equipment
Kind of Equipment
Manufacturer
Type No.
Serial No.
Last calibration Calibrated until
Test Receiver
R&S
ESCI
101427
2017.10.15
2018.10.14
LISN
R&S
ENV216
101242
2017.10.15
2018.10.14
conduction Cable
EM
C01
N/A
2018.03.11
2019.03.10
Temperature &
Humitidy
Mieo
HH660
N/A
2017.10.15
2018.10.14
Report No.: STS1807042W18
Page 10 of 27
3. EMC EMISSION TEST
3.1 CONDUCTED EMISSION MEASUREMENT
3.1.1 POWER LINE CONDUCTED EMISSION LIMITS
Operating frequency band. In case the emission fall within the restricted band specified on Part 15.
207(a) limit in the table below has to be followed.
Class B (dBuV)
FREQUENCY (MHz)
Standard
Quasi-peak
Average
0.15 -0.5
66 - 56 *
56 - 46 *
CISPR
0.50 -5.0
56.00
46.00
CISPR
5.0 -30.0
60.00
50.00
CISPR
0.15 -0.5
66 - 56 *
56 - 46 *
FCC
0.50 -5.0
56.00
46.00
FCC
5.0 -30.0
60.00
50.00
FCC
Note:
(1) The tighter limit applies at the band edges.
(2) The limit of " * " marked band means the limitation decreases linearly with the logarithm of the
frequency in the range.
The following table is the setting of the receiver
Receiver Parameters
Setting
Attenuation
10 dB
Start Frequency
0.15 MHz
Stop Frequency
30 MHz
IF Bandwidth
9 kHz
Report No.: STS1807042W18
Page 11 of 27
3.2 TEST PROCEDURE
a.The EUT was placed 0.8 meters from the horizontal ground plane with EUT being connected to
the power mains through a line impedance stabilization network (LISN). All other support
equipments powered from additional LISN(s). The LISN provide 50 Ohm/ 50uH of coupling
impedance for the measuring instrument.
b.Interconnecting cables that hang closer than 40 cm to the ground plane shall be folded back
and forth in the center forming a bundle 30 to 40 cm long.
c.I/O cables that are not connected to a peripheral shall be bundled in the center. The end of the
cable may be terminated, if required, using the correct terminating impedance. The overall
length shall not exceed 1 m.
d.LISN at least 80 cm from nearest part of EUT chassis.
e.For the actual test configuration, please refer to the related Item –EUT Test Photos.
3.3 TEST SETUP
Vertical Reference
Test Receiver
Ground Plane
40cm
EUT
80cm
LISN
Horizontal Reference
Ground Plane
Note: 1.Support units were connected to second LISN.
2.Both of LISNs (AMN) are 80 cm from EUT and at least 80
cm
from other units and other metal planes
support.
units.
3.4 EUT OPERATING CONDITIONS
The EUT was configured for testing in a typical fashion (as a customer would normally use it). The
EUT has been programmed to continuously transmit during test. This operating condition was
tested and used to collect the included data.
Report No.: STS1807042W18
Page 12 of 27
3.5 TEST RESULTS
Temperature:
26.7 ℃
Relative Humidity:
65%
Test Voltage:
AC 120V/60Hz
Phase:
Test Mode:
Mode 1
Frequency
Reading
Correct
Result
Limit
Margin
(MHz)
(dBuV)
Factor(dB)
(dBuV)
(dBuV)
(dB)
0.1540
50.49
9.79
60.28
65.78
-5.50
QP
0.1540
32.92
9.79
42.71
55.78
-13.07
AVG
0.2580
42.95
10.04
52.99
61.50
-8.51
QP
0.2580
26.34
10.04
36.38
51.50
-15.12
AVG
0.6540
39.03
9.88
48.91
56.00
-7.09
QP
0.6540
24.76
9.88
34.64
46.00
-11.36
AVG
1.9620
30.40
9.78
40.18
56.00
-15.82
QP
1.9620
12.77
9.78
22.55
46.00
-23.45
AVG
5.1260
30.28
9.85
40.13
60.00
-19.87
QP
5.1260
16.19
9.85
26.04
50.00
-23.96
AVG
15.6660
26.90
10.27
37.17
60.00
-22.83
QP
15.6660
12.87
10.27
23.14
50.00
-26.86
AVG
Remark:
1. All readings are Quasi-Peak and Average values.
2. Margin = Result (Result =Reading + Factor )–Limit
Remark
Report No.: STS1807042W18
Page 13 of 27
Temperature:
26.7℃
Relative Humidity:
65%
Test Voltage:
AC 120V/60Hz
Phase:
Test Mode:
Mode 1
Frequency
Reading
Correct
Result
Limit
Margin
(MHz)
(dBuV)
Factor(dB)
(dBuV)
(dBuV)
(dB)
0.1540
49.62
9.76
59.38
65.78
-6.40
QP
0.1540
33.54
9.76
43.30
55.78
-12.48
AVG
0.2660
43.96
10.13
54.09
61.24
-7.15
QP
0.2660
29.20
10.13
39.33
51.24
-11.91
AVG
0.5380
40.97
9.96
50.93
56.00
-5.07
QP
0.5380
28.54
9.96
38.50
46.00
-7.50
AVG
1.2020
33.89
9.81
43.70
56.00
-12.30
QP
1.2020
20.70
9.81
30.51
46.00
-15.49
AVG
3.9220
31.19
9.94
41.13
56.00
-14.87
QP
3.9220
14.16
9.94
24.10
46.00
-21.90
AVG
10.0300
30.24
9.93
40.17
60.00
-19.83
QP
10.0300
15.19
9.93
25.12
50.00
-24.88
AVG
Remark:
1. All readings are Quasi-Peak and Average values.
2. Margin = Result (Result =Reading + Factor )–Limit
Remark
Report No.: STS1807042W18
Page 14 of 27
4. RADIATED EMISSION MEASUREMENT
4.1 RADIATED EMISSION LIMITS
(a) The field strength of any emissions within the band 13.553-13.567 MHz shall not exceed
15,848 microvolts/meter at 30 meters.
(b) Within the bands 13.410-13.553 MHz and 13.567-13.710 MHz, the field strength of any
emissions shall not exceed 334 microvolts/meter at 30 meters.
(c) Within the bands 13.110-13.410 MHz and 13.710-14.010 MHz the field strength of any
emissions shall not exceed 106 microvolts/meter at 30 meters.
(d) The field strength of any emissions appearing outside of the 13.110-14.010 MHz band shall not
exceed the general radiated emission limits in §15.209.
(Radiated Emission <30MHz (9KHz-30MHz, H-field)
According to FCC section 15.225, for <30MHz, Radiated emissions were measured according to
ANSIC63.4. The EUT was set to transmit at the highest output power. The EUT was set 30 meter
away from the measuring antenna. The loop antenna was positioned 1 meter above the ground
from the center of the loop. The measuring bandwidth was set to 10KHz. (Note: During testing the
receive antenna was rotated about its axis to maximize the emission from the EUT)
There was no detected Restricted bands and Radiated suprious emission below 30MHz. The 30m
limit was converted to 3m Limit using square factor(x) as it was found by measurements as follows;
3 m Limit(dBuV/m) = 20log(X)+40log(30/3)= 20log(15,848)+40log(30/3) =124dBuV
3 m Limit(dBuV/m) = 20log(X)+40log(30/3)= 20log(334)+40log(30/3) =90.47dBuV
3 m Limit(dBuV/m) = 20log(X)+40log(30/3)= 20log(106)+40log(30/3) =80.506dBuV
3 m Limit(dBuV/m) = 20log(X)+40log(30/3)= 20log(30)+40log(30/3) =69.54dBuV
Except as provided elsewhere in this Subpart, the emissions from an intentional radiator shall not
exceed the field strength levels specified in the following table:
LIMITS OF RADIATED EMISSION MEASUREMENT (Frequency Range 9kHz-1000MHz)
Frequency range (MHz)
Field Strength@30m
Field Strength@3m
µV/m
dBµV/m
dBµV/m
Below 13.110
30
29.5
69.5
13.110 ~ 13.410
106
40.5
80.5
13.410 ~ 13.553
334
50.5
90.5
13.553 ~13.567
15.848
84
124.0
13.567 ~ 13.710
334
50.5
90.5
13.710 ~14.010
106
40.5
80.5
Above 14.010
30
29.5
69.5
NOTE:
a) Field Strength (dBµV/m) = 20*log[Field Strength (µV/m)].
b) In the emission tables above, the tighter limit applies at the Band edge.
Radiated Emission >30MHz (30MHz-1GHz, E-field)
According to FCC section 15.205, the field strength of radiated emissions from
intentiona radiators at a distance of 3 meters shall not exceed the following values:
Page 15 of 27
Report No.: STS1807042W18
Frequencies
Field Strength
Measurement Distance
(MHz)
(micorvolts/meter)
(meters)
30~88
100
88~216
150
216~960
200
Above 960
500
Receiver Parameter
Setting
Attenuation
Auto
Start ~ Stop Frequency
9kHz~90kHz / RB 200Hz for PK & AV
Start ~ Stop Frequency
90kHz~110kHz / RB 200Hz for QP
Start ~ Stop Frequency
110kHz~490kHz / RB 200Hz for PK & AV
Start ~ Stop Frequency
490kHz~30MHz / RB 9kHz for QP
Start ~ Stop Frequency
30MHz~1000MHz / RB 120kHz for QP
4.2 TEST PROCEDURE
a. The test is performed in a 3m Semi-Anechoic Chamber; the antenna factor, cable loss and so
on of the site (factors) is calculated to correct the reading. The EUT is placed on a 0.8m high
insulating Turn Table, and keeps 3m away from the Test Antenna, which is mounted on a
variable-height antenna master tower. For the test Antenna
b. In the frequency range of 9KHz to 30MHz, magnetic field is measured with Loop Test Antenna.
The Test Antenna is positioned with its plane vertical at 1m distance from the EUT. The center
of the Loop Test Antenna is 1m above the ground. During the measurement the Loop Test
Antenna rotates about its vertical axis for maximum response at each azimuth about the EUT.
c. In the frequency range above 30MHz, Bi-Log Test Antenna (30MHz to 1GHz) used. Test
Antenna is 3m away from the EUT. Test Antenna height is varied from 1m to 4m above the
ground to determine the maximum value of the field strength. The emission levels at both
horizontal and vertical polarizations should be tested.
f. The initial step in collecting conducted emission data is a spectrum analyzer peak detector
mode pre-scanning the measurement frequency range. Significant peaks are then marked and
then Quasi Peak detector mode re-measured.
g. If the Peak Mode measured value compliance with and lower than Quasi Peak Mode Limit, the
EUT shall be deemed to meet QP Limits and then no additional QP Mode measurement
performed.
h. For the actual test configuration, please refer to the related Item –EUT Test Photos.
NOTE:
Both horizontal and vertical antenna polarities were tested
and performed pretest to three orthogonal axis. The worst case emissions were reported
Page 16 of 27
Report No.: STS1807042W18
4.3 TEST SETUP
(A)Radiated Emission Test-Up Frequency Below 30MHz
(B)Radiated Emission Test-Up Frequency 30MHz~1GHz
4.4 EUT OPERATING CONDITIONS
The EUT tested system was configured as the statements of 2.3 Unless otherwise a special
operating condition is specified in the follows during the testing.
Report No.: STS1807042W18
Page 17 of 27
4.5 FIELD STRENGTH CALCULATION
The field strength is calculated by adding the Antenna Factor and Cable Factor and subtracting
the Amplifier Gain and Duty Cycle Correction Factor (if any) from the measured reading. The basic
equation with a sample calculation is as follows:
FS = RA + AF + CL - AG
Where
FS = Field Strength
CL = Cable Attenuation Factor (Cable Loss)
RA = Reading Amplitude
AG = Amplifier Gain
AF = Antenna Factor
For example
Frequency
FS
RA
AF
CL
AG
Factor
(MHz)
(dBμV/m)
(dBμV/m)
(dB)
(dB)
(dB)
(dB)
300
Factor=AF+CL-AG
40
58.1
12.2
1.6
31.9
-18.1
Page 18 of 27
Report No.: STS1807042W18
4.6 TEST RESULTS
(Radiated Emission<30MHz (9KHz-30MHz, H-field))
Temperature:
24.8 ℃
Relative Humidtity:
60%
Test Voltage:
DC 3.85V from battery
Polarization:
--
Test Mode:
Mode 1
Note: Horizontal is the worst polarization .
Freq.
Reading
Limit
Margin
Detector
State
(MHz)
(dBuV/m)
(dBuV/m)
(dB)
(PK/QP/AV)
P/F
12.12
59.15
69.54
-10.39
QP
PASS
13.33
60.06
80.51
-20.45
QP
PASS
13.45
60.37
90.47
-30.1
QP
PASS
13.56
96.07
124.00
-27.93
QP
PASS
13.67
60.61
90.47
-29.86
QP
PASS
13.89
61.66
80.51
-18.85
QP
PASS
15.21
60.67
69.54
-8.87
QP
PASS
Note: 15.31(f)(2) f < 30 MHz, extrapolation factor of 40 dB/decade of distance
Report No.: STS1807042W18
Page 19 of 27
Between 30-1000MHz
Temperature:
24.8 ℃
Relative Humidity:
60%
Test Voltage:
DC 3.85V from battery
Phase:
Horizontal
Test Mode:
Mode 1
Frequency
Reading
Correct
Result
Limit
Margin
(MHz)
(dBuV)
Factor(dB/m)
(dBuV/m)
(dBuV/m)
(dB)
30.2110
34.50
-11.30
23.20
40.00
-16.80
QP
47.4917
41.65
-20.19
21.46
40.00
-18.54
QP
100.2286
39.92
-19.17
20.75
43.50
-22.75
QP
198.5880
46.24
-20.19
26.05
43.50
-17.45
QP
265.6757
39.74
-15.29
24.45
46.00
-21.55
QP
752.7432
33.28
-3.57
29.71
46.00
-16.29
QP
Remark:
1. Margin = Result (Result =Reading + Factor )–Limit
Remark
Report No.: STS1807042W18
Page 20 of 27
Temperature:
24.8℃
Relative Humidity:
60%
Test Voltage:
DC 3.85V from battery
Phase:
Vertical
Test Mode:
Mode 1
Frequency
Reading
Correct
Result
Limit
Margin
(MHz)
(dBuV)
Factor(dB/m)
(dBuV/m)
(dBuV/m)
(dB)
30.2110
37.00
-11.30
25.70
40.00
-14.30
QP
67.4381
48.86
-24.16
24.70
40.00
-15.30
QP
100.2286
41.92
-19.17
22.75
43.50
-20.75
QP
209.3130
44.67
-19.78
24.89
43.50
-18.61
QP
318.8170
37.14
-14.21
22.93
46.00
-23.07
QP
554.8251
32.17
-6.67
25.50
46.00
-20.50
QP
Remark:
1. Margin = Result (Result =Reading + Factor )–Limit
Remark
Page 21 of 27
Report No.: STS1807042W18
5. FREQUENCY TOLERANCE
5.1 REQUIREMENT
According to FCC section 15.225, the devices operating in the 13.553-13.567 MHz shall maintain
the carrier frequency within 0.01% of the operating frequency over the temperature variation of
-20°C to +50°C using an environmental chamber. The primary supply voltage is varied from 85%
to 115% of the voltage normally at the input to the device or at the power supply terminals if cables
are not normally supplied.
5.2 TEST PROCEDURE
According to FCC section 15.225(e),The frequency tolerance of the carrier signal shall be
maintained within ±0.01% of the operating frequency over a temperature variation of −20 degrees
to + 50 degrees C at normal supply voltage, and for a variation in the primary supply voltage from
85% to 115% of the rated supply voltage at a temperature of 20 degrees C. For battery operated
equipment, the equipment tests shall be performed using a new battery.
5.3 TEST SETUP
The EUT which is powered by the Battery, is coupled to the Spectrum Analyzer; the RF load
attached to the EUT antenna terminal is 50Ohm; the path loss as the factor is calibrated to correct
the reading.
5.4 EUT OPERATION CONDITIONS
The EUT tested system was configured as the statements of 2.3 Unless otherwise a special
operating condition is specified in the follows during the testing.
Page 22 of 27
Report No.: STS1807042W18
5.5 TEST RESULTS
Temperature:
25 ℃
Relative Humidity: 50%
Test Voltage:
DC 3.85V from battery
Test Mode:
TX Mode
13.56MHz
VOLTAGE(%)
100
Test Conditions
Power Temperature
(VDC)
(°C)
+20°C(Ref)
Frequency(Hz)
Deviation(%)
Limit
13560751
0.00554
±0.01%
100
-20
13560750
0.00553
±0.01%
100
-10
13560753
0.00555
±0.01%
100
13560754
0.00556
±0.01%
10
13560754
0.00556
±0.01%
20
13560751
0.00554
±0.01%
100
25
13560751
0.00554
±0.01%
100
30
13560752
0.00555
±0.01%
100
40
13560753
0.00555
±0.01%
100
Battery End
Point
115
50
13560753
0.00555
±0.01%
3.27
20
13560753
0.00555
±0.01%
4.43
20
13560755
0.00557
±0.01%
100
100
3.85
Verdict
PASS
Page 23 of 27
Report No.: STS1807042W18
6. 20DB BANDWIDTH
6.1 APPLIED PROCEDURES / LIMIT
According to FCC section 15.215(c), the 20dB bandwidth should be contained within the frequency
band designated in the rule section under which the EUT is operated, it was measured with a
spectrum analyzer connected the EUT while the EUT is operating in transmission mode.
6.2 TEST PROCEDURE
Intentional radiators operating under the alternative provisions to the general emission limits, as
contained in §13.553-13.567 MHz and in subpart E of this part, must be designed to ensure that
the 20 dB bandwidth of the emission, or whatever bandwidth may otherwise be specified in the
specific rule section under which the equipment operates, is contained within the frequency band
designated in the rule section under which the equipment is operated. In the case of intentional
radiators operating under the provisions of subpart E, the emission bandwidth may span across
multiple contiguous frequency bands identified in that subpart. The requirement to contain the
designated bandwidth of the emission within the specified frequency band includes the effects
from frequency sweeping, frequency hopping and other modulation techniques that may be
employed as well as the frequency stability of the transmitter over expected variations in
temperature and supply voltage. If a frequency stability is not specified in the regulations, it 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.
1. Set RBW = 1 kHz.
2. Set the video Mobile Phonewidth (VBW) ≥ 3 RBW.
3. Detector = Peak.
4. Trace mode = max hold.
5. Sweep = auto couple.
6. Allow the trace to stabilize.
7.Measure the maximum width of the emission that is constrained by the frequencies associated
with the two outermost amplitude points (upper and lower frequencies) that are attenuated by 6 d
B relative to the maximum level measured in the fundamental emission.
6.3 TEST SETUP
6.4 EUT OPERATION CONDITIONS
The EUT tested system was configured as the statements of 2.3 Unless otherwise a special
operating condition is specified in the follows during the testing.
Page 24 of 27
Report No.: STS1807042W18
6.5 TEST RESULTS
Temperature:
25 ℃
Relative Humidity: 60%
Test Voltage:
DC 3.85V from battery
Test Mode:
TX Mode
13.56MH
Centre
Frequency
13.56MHz
Measurement
20dB Bandwidth
(KHz)
99% Bandwidth
(KHz)
Frequency Range (MHz)
2.891
2.451
13.553-13.567
Page 25 of 27
Report No.: STS1807042W18
7. ANTENNA REQUIREMENT
7.1 STANDARD REQUIREMENT
15.203 requirement: For intentional device, 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.
7.2 EUT ANTENNA
The EUT antenna is PIFA Antenna. It comply with the standard requirement.
Page 26 of 27
Report No.: STS1807042W18
APPENDIX 1- PHOTOS OF TEST SETUP
Conduction Measurement Photos
Radiated Measurement Photos
Page 27 of 27
※※※※※END OF THE REPORT※※※※※
Report No.: STS1807042W18
Download: ATOM Smart Phone Test Report Measurement Report Shanghai Unihertz E-Commerce
Mirror Download [FCC.gov]ATOM Smart Phone Test Report Measurement Report Shanghai Unihertz E-Commerce
Document ID3989525
Application ID9tOclEGTkX8a8KXN3CrBhg==
Document DescriptionTest Report
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Permanent ConfidentialNo
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Document TypeTest Report
Display FormatAdobe Acrobat PDF - pdf
Filesize83.55kB (1044407 bits)
Date Submitted2018-09-04 00:00:00
Date Available2018-09-04 00:00:00
Creation Date2018-08-22 05:50:14
Producing SoftwareMicrosoft Office Word 2007
Document Lastmod2018-08-22 05:50:14
Document TitleMeasurement Report
Document CreatorMicrosoft Office Word 2007
Document Author: Kent

Source Exif Data [exif.tools]:
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Title                           : Measurement Report
Author                          : Kent
Creator                         : Microsoft Office Word 2007
Create Date                     : 2018:08:22 05:50:14
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Producer                        : Microsoft Office Word 2007