Test report

FCC ID: XVB-HY1001

Test Report

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FCCID_4134938

Page 2 of 30 Report No.: T1881567 01

Contents
1. General Information ............................................................................................................... 5
1.1. Description of Device (EUT) ...............................................................................5
1.2. Accessories of Device (EUT)...............................................................................6
1.3. Tested Supporting System Details .......................................................................6
1.4. Test Facility ..........................................................................................................6
2. Summary of test ...................................................................................................................... 7
2.1. Summary of test result .........................................................................................7
2.2. Block Diagram .....................................................................................................8
2.3. Test mode .............................................................................................................8
2.4. Test Conditions.....................................................................................................8
2.5. Measurement Uncertainty (95% confidence levels, k=2) ....................................8
2.6. Test Equipment.....................................................................................................9
3. Radiation Emission ............................................................................................................... 10
3.1. Radiation Emission Limits(15.209&231) ..........................................................10
3.2. Test Setup ...........................................................................................................10
3.3. Test Procedure ....................................................................................................12
3.4. Test Equipment Setting For emission test. .........................................................12
3.5. Test Condition ....................................................................................................12
3.6. Test Result ..........................................................................................................12
4. POWER LINE CONDUCTED EMISSION ....................................................................... 17
4.1. Conducted Emission Limits (15.209) ................................................................17
4.2. Test Setup ...........................................................................................................17
4.3. Test Procedure ....................................................................................................18
4.4. Test Results ........................................................................................................18
5. Occupied bandwidth ............................................................................................................. 19
5.1. Test limit.............................................................................................................19
5.2. Method of measurement .....................................................................................19
5.3. Test Setup ...........................................................................................................19
5.4. Test Results ........................................................................................................20
6. Transmission time ................................................................................................................. 21
6.1. Test limit.............................................................................................................21
6.2. Method of measurement .....................................................................................21
6.3. Test Setup ...........................................................................................................21
6.4. Test Results ........................................................................................................22
7. Antenna Requirement .......................................................................................................... 23
7.1. Standard Requirement ........................................................................................23
7.2. Antenna Connected Construction ......................................................................23
7.3. Result..................................................................................................................23
8. Test setup photo .................................................................................................................... 24
9. Photos of EUT ....................................................................................................................... 25

Page 4 of 30 Report No.: T1881567 01

Revision History
Revision Issue Date Revisions Revised By
00 January 3, 2019 Initial released Issue Simple Guan

Page 6 of 30 Report No.: T1881567 01

1.2. Accessories of Device (EUT)

Accessories1 : /
Manufacturer : /
Model : /
Power supply : /

1.3. Tested Supporting System Details

Certification or
No. Description Manufacturer Model Serial Number
DOC
/ / / / / /

1.4. Test Facility

Shenzhen Alpha Product Testing Co., Ltd
Building i, No.2, Lixin Road, Fuyong Street, Bao’an District, 518103,
Shenzhen, Guangdong, China

June 21, 2018 File on Federal Communication Commission
Registration Number: 293961
July 25, 2017 Certificated by IC
Registration Number: 12135A

Page 7 of 30 Report No.: T1881567 01

2. Summary of test

2.1. Summary of test result

Description of Test Item Standard Results
Section 15.231&15.209
Spurious Emission &15.205
PASS

Conduction Emission Section 15.207 N/A

Occupied bandwidth Section 15.231 PASS

Transmission time Section 15.231 PASS

Band Edge Section 15.231 N/A

Antenna Requirement Section 15.203 PASS

Note ：Test according to ANSI C63.10-2013

Page 8 of 30 Report No.: T1881567 01

2.2. Block Diagram
1. For radiated emissions test: EUT was placed on a turn table, which is 0.8 meters
high above ground for below 1 GHz test and 1.5 meters high above ground for
below 1 GHz test . EUT was set into test mode before test. New battery is used
during all test

EUT

2.3. Test mode
EUT work in Continuous TX mode, and select test channel, wireless mode
Tested mode, channel, and data rate information
Mode Channel Frequency
(MHz)
FSK CH1 315

2.4. Test Conditions

Temperature range 21-25℃
Humidity range 40-75%
Pressure range 86-106kPa

2.5. Measurement Uncertainty (95% confidence levels, k=2)

Item Uncertainty

Uncertainty for Power point Conducted Emissions Test 2.74dB

Uncertainty for Radiation Emission test in 3m chamber 2.13 dB(Polarize: V)
(below 30MHz) 2.57dB(Polarize: H)
Uncertainty for Radiation Emission test in 3m chamber 3.77dB(Polarize: V)
(30MHz to 1GHz) 3.80dB(Polarize: H)
Uncertainty for Radiation Emission test in 3m chamber 4.16dB(Polarize: H)
(1GHz to 25GHz) 4.13dB(Polarize: V)
Uncertainty for radio frequency 5.4×10-8
Uncertainty for conducted RF Power 0.37dB
Uncertainty for temperature 0.2℃
Uncertainty for humidity 1%
Uncertainty for DC and low frequency voltages 0.06%

Page 10 of 30 Report No.: T1881567 01

3. Radiation Emission

3.1. Radiation Emission Limits(15.209&231)

Frequency Field Strength
(MHz) Limits at 3 metres (watts, e.i.r.p.)
uV/m dB uV/m Measurement
distance(m)
0.009-0.490 2400/F(kHz) XX 300

0.490-1.705 24000/F(kHz) XX 30

1.705-30 30 29.5 30

30~88 100(3nW) 40 3

88~216 150(6.8nW) 43.5 3

216~960 200(12nW) 46 3

Above960 500(75nW) 54 3

Carrier 75.6(AV) 3
frequency
Carrier 95.6(PK) 3
frequency

NOTE:
a) The tighter limit applies at the band edges.
b) Emission Level(dB uV/m)=20log Emission Level(Uv/m)

3.2. Test Setup

See the next page.

Page 12 of 30 Report No.: T1881567 01

Above 1GHz Test Setup

3.3. Test Procedure

a) The measureing distance of 3m shall be used for measurements at frequency up to
1GHz and above 1GHz, The EUT was placed on a rotating 0.8 m high above
ground,The table was rotated 360 degrees to determine the position of the highest
radiation
b) The Test antenna shall vary between 1m and 4m, Both Horizontal and Vertical
antenna are set ot make measurement.
c) The initial step in collecting conducted emission data is a spectrum analyzer Peak
detector mode pre-scanning the measurement frequency range. Significent Peaks are
then marked. and then Qusia Peak Detector mode remeasured
d) If Peak value comply with QP limit Below 1GHz.The EUT deemed to comply with
QP limit. But the Peak value and average value both need to comply with applicable
limit above 1GHz.
e) For the actual test configuration, please see the test setup photo.

3.4. Test Equipment Setting For emission test.
9KHz~150KHz RBW 200Hz VBW1KHz
150KHz~30MHz RBW 9KHz VBW 30KHz
30MHz~1GHz RBW 120KHz VBW 300KHz
Above 1GHz RBW 1MHz VBW 3MHz

3.5. Test Condition
Continual Transmitting in maximum power(The new battery be used during Test)

3.6. Test Result
We have scanned the 10th harmonic from 9KHz to the EUT.
Detailed information please see the following page.

From 9KHz to 30MHz: Conclusion: PASS

Note: The amplitude of spurious emissions which are
attenuated by more than 20dB below the permissible value has
no need to be reported.

Page 13 of 30 Report No.: T1881567 01

Notes: 1 --Means other frequency and mode comply with standard requirements and at
least have 20dB margin.
Correct Factor=Cable Loss+Antenna Factor-Amplifier Gain
Measurement Result=Reading + Correct Factor
Margin=Measurement Result-Limit
2 –Spectrum setting:
a. Peak setting 30MHz-1GHz, RBW=100KHz, VBW=300KHz.
3- PK measure result values is less than the AVG limit values, so AV measure
result values test not applicable.

Page 18 of 30 Report No.: T1881567 01

4.3. Test Procedure

The EUT is put on the plane 0.8m high above the ground by insulating support
and is connected to the power mains through a line impedance stabilization
network (L.I.S.N.). This provides a 50ohm coupling impedance for the EUT
system. Please refer the block diagram of the test setup and photographs. Both
sides of AC lines are checked to find out the maximum conducted emission. In
order to find the maximum emission levels, the relative positions of equipment
and all of the interface cables shall be changed according to ANSI C63.10:2013
on Conducted Emission Measurement.
The bandwidth of test receiver (R & S ESCI) is set at 9 kHz.

4.4. Test Results

EUT power supply by battery, so the test not applicable.

Page 21 of 30 Report No.: T1881567 01

6. Transmission time
6.1. Test limit

Please refer sectionRSS-210 & 15.231
According to §15.231(a)(1), A manually operated transmitter shall employ a switch that will
automatically deactivate the transmitter within not more than 5 seconds of being released.

6.2. Method of measurement

6.2.1. Place the EUT on the table and set it in transmitting mode.

6.2.2. Remove the antenna from the EUT and then connect a low loss RF cable from the
antenna port to the spectrum analyzer.

6.2.3. Set spectrum analyzer Center= 315MHz, Span = 0MHz, Sweep = 5s.

6.2.4. Set the spectrum analyzer as RBW, VBW=1MHz,

6.2.5. Max hold, view and count how many channel in the band.

6.3. Test Setup

Spectrum
EUT Analyzer

Page 23 of 30 Report No.: T1881567 01

7. Antenna Requirement

7.1. Standard Requirement

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.

7.2. Antenna Connected Construction

The directional gains of antenna used for transmitting is 0 dBi, and the antenna
connector is de- signed with permanent attachment and no consideration of
replacement. Please see EUT photo for details.

7.3. Result

The EUT antenna is Internal antenna. It comply with the standard requirement.

Document Created: 2019-01-21 15:20:13
Document Modified: 2019-01-21 15:20:13

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