PLUSX wireless bluetooth earbuds Test Report Shenzhen Circlemoon Co., Ltd.

Shenzhen Circlemoon Co., Ltd. wireless bluetooth earbuds

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Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
FCC Part 15C Test Report
FCC ID:2AR5D-PLUSX
Product Name:
wireless bluetooth earbuds
Trademark:
Model Name :
Plus X
Prepared For :
Shenzhen Circlemoon Co., Ltd.
Address :
Room 403, building 4, yitian village, fuqiang road, fubao street, futian
district, Shenzhen, China.
Prepared By :
Shenzhen BCTC Testing Co., Ltd.
Address :
BCTC Building & 1-2F, East of B Building, Pengzhou Industrial, Fuyuan
1st Road, Qiaotou Community, Fuyong Street, Bao’an District, Shenzhen,
China
Test Date:
Dec. 07, 2018 – Dec. 21, 2018
Date of Report :
Dec. 21, 2018
Report No.:
BCTC-FY181206758E
FCC Report
Tel: 400-788-9558
Web: Http//www.bctc-lab.com.cn
Page 1 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
TEST RESULT CERTIFICATION
Applicant’s name ............. : Shenzhen Circlemoon Co., Ltd.
Address ............................. : Room 403, building 4, yitian village, fuqiang road, fubao
street, futian district, Shenzhen, China.
Manufacture's Name ........ : Shenzhen Circlemoon Co., Ltd.
Address ............................. : Room 403, building 4, yitian village, fuqiang road, fubao
street, futian district, Shenzhen, China.
Product description
Product name .................... : wireless bluetooth earbuds
Trademark ......................... :
Model and/or type reference
.......................................... : Plus X
Standards ......................... : FCC Part15.247
ANSI C63.10:2013
This device described above has been tested by BCTC, and 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 BCTC,
this document may be altered or revised by BCTC, personal only, and shall be noted in the
revision of the document.
Prepared by(Engineer):
Leke Xie
Reviewer(Supervisor):
Eric Yang
Approved(Manager):
FCC Report
Carson Zhang
Tel: 400-788-9558
Web: Http//www.bctc-lab.com.cn
Page 2 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
Table of Contents
Page
Test Report Declaration
1.
2.
3.
4.
4.1
4.2
4.3
4.4
4.5
5.
5.1
5.2
6.
6.1
6.2
6.3
6.4
7.
7.1
7.2
7.3
7.4
7.5
8.
8.1
8.2
8.3
8.4
9.
9.1
9.2
9.3
9.4
10.
10.1
10.2
10.3
10.4
11.
11.1
11.2
FCC Report
TEST SUMMARY ...................................................... 5
TEST FACILITY ....................................................... 6
MEASUREMENT UNCERTAINTY........................................ 6
GENERAL INFORMATION.............................................. 7
GENERAL DESCRIPTION OF EUT ...................................... 7
Test Setup Configuration ................................................ 7
Support Equipment ..................................................... 8
Channel List ........................................................... 9
Test Mode ............................................................ 10
TEST FACILITY AND TEST INSTRUMENT USED ........................ 11
Test Facility ........................................................... 11
Test Instrument Used .................................................. 11
CONDUCTED EMISSIONS............................................. 13
Block Diagram Of Test Setup ........................................... 13
Limit ................................................................. 13
Test procedure ........................................................ 13
Test Result ........................................................... 15
RADIATED EMISSIONS ............................................... 17
Block Diagram Of Test Setup ........................................... 17
Limit ................................................................. 18
Test procedure ........................................................ 18
Test Result ........................................................... 20
RADIATED Band EMISSION MEASUREMENT ............................ 24
CONDUCTED EMISSION .............................................. 26
Block Diagram Of Test Setup ........................................... 26
Limit ................................................................. 26
Test procedure ........................................................ 26
Test Result ........................................................... 27
20 DB BANDWIDTH .................................................. 38
Block Diagram Of Test Setup ........................................... 38
Limit ................................................................. 38
Test procedure ........................................................ 38
Test Result ........................................................... 39
MAXIMUM PEAK OUTPUT POWER .................................... 44
Block Diagram Of Test Setup .......................................... 44
Limit ................................................................ 44
Test procedure ....................................................... 44
Test Result .......................................................... 45
HOPPING CHANNEL SEPARATION .................................... 50
Block Diagram Of Test Setup .......................................... 50
Limit ................................................................ 50
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Page 3 of 70
Shenzhen BCTC Testing Co., Ltd.
11.3
11.4
12.
12.1
12.2
12.3
12.4
13.
13.1
13.2
13.3
13.4
14.
15.
16.
Report No.: BCTC-FY181206758E
Test procedure ....................................................... 50
Test Result .......................................................... 51
NUMBER OF HOPPING FREQUENCY .................................. 56
Block Diagram Of Test Setup .......................................... 56
Limit ................................................................ 56
Test procedure ....................................................... 56
Test Result .......................................................... 57
DWELL TIME ........................................................ 59
Block Diagram Of Test Setup .......................................... 59
Limit ................................................................ 59
Test procedure ....................................................... 59
Test Result .......................................................... 60
ANTENNA REQUIREMENT ............................................ 66
EUT PHOTOGRAPHS ................................................. 67
EUT TEST SETUP PHOTOGRAPHS .................................... 69
(Note: N/A means not applicable)
FCC Report
Tel: 400-788-9558
Web: Http//www.bctc-lab.com.cn
Page 4 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
1. TEST SUMMARY
Test procedures according to the technical standards:
FCC Part15 (15.247) , Subpart C
Standard
Section
Test Item
Judgment
15.205(a)
15.209
15.247(d)
Radiated Spurious Emissions
PASS
15.247(d)
Conducted Spurious emissions
PASS
15.247(d)
15.205(a)
Band edge
PASS
15.207
Conducted Emission
PASS
15.247(a)
20dB Bandwidth
PASS
15.247(b)
Maximum Peak Output Power
PASS
15.247(a)
Frequency Separation
PASS
15.247(a)
Number of Hopping Frequency
PASS
15.247(a)
Dwell time
PASS
15.203
Antenna Requirement
PASS
Remark
Note: (1)” N/A” denotes test is not applicable in this Test Report
FCC Report
Tel: 400-788-9558
Web: Http//www.bctc-lab.com.cn
Page 5 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
2. TEST FACILITY
Shenzhen BCTC Testing Co., Ltd.
Add. : BCTC Building & 1-2F, East of B Building, Pengzhou Industrial, Fuyuan 1st
Road, Qiaotou Community, Fuyong Street, Bao’an District, Shenzhen, China
Test Firm Registration Number: 712850
IC Registered No.: 23583
3. 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.
10
11
FCC Report
Item
3m camber Radiated spurious
emission(30MHz-1GHz)
3m chamber Radiated spurious
emission(1GHz-18GHz)
3m chamber Radiated spurious
emission(18GHz-40GHz)
Conducted Adjacent channel
power
Conducted output power
uncertainty Above 1G
Conducted output power
uncertainty below 1G
humidity uncertainty
Temperature uncertainty
Radiated disturbance(30MHz1000MHz)
Radiated disturbance(1GHz6GHz)
Radiated disturbance(1GHz18GHz)
Tel: 400-788-9558
Uncertainty
U=4.3dB
U=4.5dB
U=3.34dB
U=1.38dB
U=1.576dB
U=1.28dB
U=5.3%
U=0.59℃
U=4.8dB
U=4.9dB
U=5.0dB
Web: Http//www.bctc-lab.com.cn
Page 6 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
4. GENERAL INFORMATION
4.1
GENERAL DESCRIPTION OF EUT
Equipment
wireless bluetooth earbuds
Trade Name
Model Name
Plus X
N/A
The EUT is a wireless bluetooth earbuds
Operation Frequency: 2402-2480 MHz
Modulation Type:
GFSK, Pi/4DQPSK, 8DPSK
Number Of Channel
79CH
Model Difference
Product Description
Antenna Designation:
Internal Antenna
Antenna Gain
0dBi
Channel List
Ratings
Based on the application, features, or specification exhibited
in User's Manual, the EUT is considered as an
ITE/Computing Device. More details of EUT technical
specification, please refer to the User's Manual.
Please refer to the Note 2.
Battery DC 3.7V 40mAh, DC 5V form Adapter
Connecting I/O Port(s)
Please refer to the User's Manual
Hardware Version:
N/A
N/A
Software Version:
4.2
Test Setup Configuration
See test photographs attached in EUT TEST SETUP PHOTOGRAPHS for the actual
Conducted Emission Test
E-1
EUT
FCC Report
Tel: 400-788-9558
C-1
E-2
Adapter
AC
Web: Http//www.bctc-lab.com.cn
Page 7 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
Radiated Spurious Emission
4.3
Support Equipment
No.
Device Type
Brand
Model
Series No.
Data Cable
E-1
wireless bluetooth
earbuds
N/A
Plus X
N/A
EUT
E-2
Adapter
N/A
BCTC005
N/A
Auxiliary
Item Shielded Type
C-1
NO
Ferrite Core
Length
Note
NO
1.2M
DC cable unshielded
Notes:
1. All the equipment/cables were placed in the worst-case configuration to maximize the emission during
the test.
2. Grounding was established in accordance with the manufacturer’s requirements and conditions for the
intended use.
FCC Report
Tel: 400-788-9558
Web: Http//www.bctc-lab.com.cn
Page 8 of 70
Shenzhen BCTC Testing Co., Ltd.
4.4
Report No.: BCTC-FY181206758E
Channel List
CH
12
16
20
24
28
32
36
40
44
48
52
56
60
64
68
72
76
FCC Report
Frequency
(MHz)
2402
2406
2410
2414
2418
2422
2426
2430
2434
2438
2442
2446
2450
2454
2458
2462
2466
2470
2474
2478
CH
13
17
21
25
29
33
37
41
45
49
53
57
61
65
69
73
77
Frequency
(MHz)
2403
2407
2411
2415
2419
2423
2427
2431
2435
2439
2443
2447
2451
2455
2459
2463
2467
2471
2475
2479
Tel: 400-788-9558
CH
10
14
18
22
26
30
34
38
42
46
50
54
58
62
66
70
74
78
Frequency
(MHz)
2404
2408
2412
2416
2420
2424
2428
2432
2436
2440
2444
2448
2452
2456
2460
2464
2468
2472
2476
2480
CH
11
15
19
23
27
31
35
39
43
47
51
55
59
63
67
71
75
79
Web: Http//www.bctc-lab.com.cn
Frequency
(MHz)
2405
2409
2413
2417
2421
2425
2429
2433
2437
2441
2445
2449
2453
2457
2461
2465
2469
2473
2477
Page 9 of 70
Shenzhen BCTC Testing Co., Ltd.
4.5
Report No.: BCTC-FY181206758E
Test Mode
All test mode(s) and condition(s) mentioned were considered and evaluated respectively
by performing full tests, the worst data were recorded and reported.
During testing, Channel and Power Controlling Software provided by the customer was
used to control the operating channel as well as the output power level. The RF output
power selection is for the setting of RF output power expected by the customer and is
going to be fixed on the firmware of the final end product.
The EUT is Continue Transmitting.
The software is installed in operation system, named “RFTestTool.apk” ,Version 1.0.
Test Mode
Test mode
Transmitting(GFSK)
2402MHz
2441MHz
2480MHz
Transmitting(Pi/4DQPSK)
2402MHz
2441MHz
2480MHz
Transmitting(8DPSK)
2402MHz
2441MHz
2480MHz
FCC Report
Low channel Middle channel High channel
Transmitting (conducted emission and Radiated emission)
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Page 10 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
5. TEST FACILITY AND TEST INSTRUMENT USED
5.1
Test Facility
All measurement facilities used to collect the measurement data are located at BCTC
Building & 1-2F, East of B Building, Pengzhou Industrial, Fuyuan 1st Road, Qiaotou
Community, Fuyong Street, Bao’an District, Shenzhen, China. The site and apparatus are
constructed in conformance with the requirements of ANSI C63.4 and CISPR 16-1-1 other
equivalent standards.
5.2
Test Instrument Used
RF conduction and RadiationTest equipment
Item
10
11
12
13
14
15
16
17
18
Equipment
Spectrum
Analyzer
(9kHz-26.5GHz)
Test Receiver
(9kHz-7GHz)
Bilog Antenna
(30MHz-3GHz)
Horn Antenna
(1GHz-18GHz)
Horn Antenna
(18GHz-40GHz)
Amplifier
(9KHz-6GHz)
Amplifier
(0.5GHz-18GHz
Amplifier
(18GHz-40GHz)
Loop Antenna
(9KHz-30MHz)
RF cables1
(9kHz-30MHz)
RF cables2
(30MHz-1GHz)
RF cables3
(1GHz-40GHz)
Power Metter
Power Sensor
(AV)
Signal Analyzer
20kHz-26.5GHz
Test Receiver
9kHz-40GHz
D.C. Power
Supply
Software
FCC Report
Manufacturer
Type No.
Agilent
E4407B
R&S
ESR7
Last
calibration
Calibrated
until
MY45109572 2018.06.20
2019.06.20
Serial No.
101154
2018.06.20
SCHWARZB
VULB9163-9
VULB9163
2018.06.23
ECK
42
SCHWARZB BBHA9120D
1541
2018.06.23
ECK
SCHWARZB BBHA9170
822
2018.08.06
ECK
SCHWARZB BBV9744
9744-0037 2018.06.20
ECK
2019.06.20
2019.06.23
2021.06.22
2019.08.06
2019.06.20
SCHWARZB
ECK
BBV9718
9718-309
2018.06.20
2019.06.20
MITEQ
TTA1840-35
-HG
2034381
2018.08.06
2019.08.06
SCHWARZB
ECK
Huber+Suhna
Huber+Suhna
Huber+Suhna
Keysight
FMZB1519B
014
2018.06.23
2019.06.23
Keysight
E9 300A
KEYSIGHT
N9020A
R&S
FSP40
100550
2018.06.13
2019.06.12
LongWei
TPR-6405D
Frad
EZ-EMC
FA-03A2 RE
Tel: 400-788-9558
9kHz-30MH B1702988-00
2018.02.12
08
30MHz-1GH 1486150
2018.03.27
1GHz-40GH 1607106
2018.06.19
E4419
2018.04.15
2019.02.12
2019.03.27
2019.06.19
2019.04.15
2018.04.15
2019.04.15
MY49100060 2018.08.14
2019.08.13
Web: Http//www.bctc-lab.com.cn
Page 11 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
Conduction Test equipment
Item Equipment
Manufacturer
Type No.
Serial No.
Last
calibration
Calibrated
until
Test
Receiver
R&S
ESR3
102075
2018.06.20
2019.06.20
LISN
NSLK8127
8127739
2018.06.19
2019.06.19
LISN
SCHWARZBE
CK
R&S
2018.06.20
2019.06.20
RF cables
2018.02.12
2019.02.12
Software
FCC Report
101375
Huber+Suhnar 9kHz-30MHz B1702988-00
08
EMC-CON
Frad
EZ-EMC
3A1
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ENV216
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Page 12 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
6. CONDUCTED EMISSIONS
6.1
Block Diagram Of Test Setup
V e r tic a l R e fe r e n c e
T e s t R e c e iv e r
G ro u n d P la n e
EUT
40cm
80cm
L IS N
H o r iz o n ta l R e fe r e n c e
G r o u n d P la n e
N o te : 1 .S u p p o r t u n its w e r e c o n n e c t e d t o s e c o n d L IS N .
2 .B o th o f L IS N s ( A M N ) a r e 8 0 c m f r o m E U T a n d a t le a s t 8 0
fr o m o th e r u n its a n d o th e r m e ta l p la n e s
6.2
Limit
FREQUENCY (MHz)
0.15 -0.5
0.50 -5.0
5.0 -30.0
6.3
Limit (dBuV)
Quasi-peak
66 - 56 *
56.00
60.00
Average
56 - 46 *
46.00
50.00
Standard
FCC
FCC
FCC
Test procedure
Receiver Parameters
Attenuation
Start Frequency
Stop Frequency
IF Bandwidth
Setting
10 dB
0.15 MHz
30 MHz
9 kHz
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.
FCC Report
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Page 13 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
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.
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Page 14 of 70
Shenzhen BCTC Testing Co., Ltd.
6.4
Report No.: BCTC-FY181206758E
Test Result
Temperature: 26℃
Pressure:
101kPa
Test Voltage : AC 120V/60Hz
Relative Humidity:
Phase :
Test Mode:
54%
Mode 4
Remark:
1. All readings are Quasi-Peak and Average values.
2. Factor = Insertion Loss + Cable Loss.
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Shenzhen BCTC Testing Co., Ltd.
Temperature: 26℃
Pressure:
101kPa
Test Voltage : AC 120V/60Hz
Report No.: BCTC-FY181206758E
Relative Humidity:
Phase :
Test Mode:
54%
Mode 4
Remark:
1. All readings are Quasi-Peak and Average values.
2. Factor = Insertion Loss + Cable Loss.
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Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
7. RADIATED EMISSIONS
7.1
Block Diagram Of Test Setup
(A)Radiated Emission Test-Up Frequency Below 30MHz
(B)Radiated Emission Test-Up Frequency 30MHz~1GHz
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Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
(C)Radiated Emission Test-Up Frequency Above 1GHz
7.2
Limit
20dBc in any 100 kHz bandwidth outside the operating frequency band. In case the emission
fall within the restricted band specified on 15.205(a), then the 15.209(a) limit in the table
below has to be followed.
Frequency
Field Strength Distance
(MHz)
uV/m
0.009 ~ 0.490
0.490 ~ 1.705
2400/F(kHz)
24000/F(kHz)
1.705 ~ 30
7.3
30
(m)
300
30
30
Field Strength Limit at 3m Distance
uV/m
dBuV/m
10000 * 2400/F(kHz)
(2400/F(kHz))
+ 80
(24000/F(kHz))
+ 40
100 * 24000/F(kHz)
100 * 30
20log
20log
20log
(30)
+ 40
(100)
30 ~ 88
100
100
20log
88 ~ 216
150
150
20log(150)
216 ~ 960
200
200
20log(200)
Above 960
500
500
20log(500)
Test procedure
Receiver Parameter
Attenuation
9kHz~150kHz
150kHz~30MHz
30MHz~1000MHz
Setting
Auto
RBW 200Hz for QP
RBW 9kHz for QP
RBW 120kHz for QP
Spectrum Parameter
Setting
RBW 1 MHz /VBW 1 MHz for Peak,
RBW 1 MHz / VBW 10Hz for Average
1-25GHz
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Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
Below 1GHz test procedure as below:
a. The EUT was placed on the top of a rotating table 0.8 meters above the ground at a 3
meter semi-anechoic camber. The table was rotated 360 degrees to determine the position
of the highest radiation.
b. The EUT was set 3 meters away from the interference-receiving antenna, which was
mounted on the top of a variable-height antenna tower.
c. The antenna height is varied from one meter to four meters above the ground to
determine the maximum value of the field strength. Both horizontal and vertical polarizations
of the antenna are set to make the measurement.
d. For each suspected emission, the EUT was arranged to its worst case and then the
antenna was tuned to heights from 1 meter to 4 meters (for the test frequency of below
30MHz, the antenna was tuned to heights 1 meter) and the rotatable table was turned from 0
degrees to 360 degrees to find the maximum reading.
e. The test-receiver system was set to Peak Detect Function and Specified Bandwidth with
Maximum Hold Mode.
f. If the emission level of the EUT in peak mode was 10dB lower than the limit specified,
then testing could be stopped and the peak values of the EUT would be reported. Otherwise
the emissions that did not have 10dB margin would be re-tested one by one using peak,
quasi-peak or average method as specified and then reported in a data sheet.
Above 1GHz test procedure as below:
g. Different between above is the test site, change from Semi- Anechoic Chamber to fully
Anechoic Chamber and change form table 0.8 metre to 1.5 metre( Above 18GHz the
distance is 1 meter and table is 1.5 metre).
h. Test the EUT in the lowest channel ,the middle channel ,the Highest channel.
Note:
Both horizontal and vertical antenna polarities were tested and performed pretest to three
orthogonal axis. The worst case emissions were reported.
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Shenzhen BCTC Testing Co., Ltd.
7.4
Report No.: BCTC-FY181206758E
Test Result
Between 9KHz – 30MHz
Relative Humidity: 54%
DC 3.7V
Test Voltage :
Polarization :
--
Temperature: 26℃
101 kPa
Pressure:
Test Mode : Mode 4
Freq.
Reading
Limit
Margin
State
(MHz)
(dBuV/m)
(dBuV/m)
(dB)
P/F
--
--
--
--
PASS
--
--
--
--
PASS
Note:
The amplitude of spurious emissions which are attenuated by more than 20dB 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.
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Shenzhen BCTC Testing Co., Ltd.
Temperature: 26℃
101kPa
Pressure:
Test Mode : Mode 4
Report No.: BCTC-FY181206758E
Between 30MHz – 1GHz
Relative Humidtity: 54%
DC 3.7V
Test Voltage :
Polarization :
Horizontal
Remark:
Factor = Antenna Factor + Cable Loss – Pre-amplifier.
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Shenzhen BCTC Testing Co., Ltd.
Temperature: 26℃
101kPa
Pressure:
Test Mode : Mode 4
Report No.: BCTC-FY181206758E
Relative Humidtity: 54%
DC 3.7V
Test Voltage :
Polarization :
Vertical
Remark:
Factor = Antenna Factor + Cable Loss – Pre-amplifier.
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Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
Between 1-25GHz
Polar
(H/V)
Frequency
Meter
Reading
(MHz)
(dBuV)
4804.00
4804.00
7206.00
7206.00
15455.62
4804.00
4804.00
7206.00
7206.00
15454.89
53.14
43.11
52.56
43.19
54.94
51.51
43.72
50.28
43.14
50.41
Pre-ampli
fier
Cable
Loss
Antenna
Factor
Emission
Level
Limits
Margin
(dB)
(dB)
(dB)
(dBuV/m)
(dBuV/m)
(dB)
74.00
54.00
74.00
54.00
74.00
74.00
54.00
74.00
54.00
74.00
-26.90
-16.93
-27.70
-17.07
-20.95
-28.53
-16.32
-30.98
-18.45
-24.41
PK
AV
PK
AV
PK
PK
AV
PK
AV
PK
Detector
Type
GFSK Low Channel:2402MHz
39.55
7.85
25.66
47.10
39.55
7.85
25.66
37.07
38.33
7.52
24.55
46.30
38.33
7.52
24.55
36.93
35.23
6.75
26.59
53.05
39.55
7.85
25.66
45.47
39.55
7.85
25.66
37.68
38.33
7.52
23.55
43.02
38.33
7.52
23.22
35.55
35.45
6.75
27.88
49.59
Detector
Type
Polar
(H/V)
Frequency
Meter
Reading
Pre-ampli
fier
Cable
Loss
Antenna
Factor
Emission
Level
Limits
Margin
(MHz)
(dBuV)
(dB)
(dB)
(dB)
(dBuV/m)
(dBuV/m)
(dB)
4880.00
4880.00
7320.00
7320.00
15457.16
4880.00
4880.00
7320.00
7320.00
15455.74
50.80
43.58
51.50
43.63
53.40
51.88
43.15
53.99
43.82
52.79
74.00
54.00
74.00
54.00
74.00
74.00
54.00
74.00
54.00
74.00
-29.24
-16.46
-28.76
-16.63
-22.49
-28.16
-16.89
-27.27
-17.77
-22.03
PK
AV
PK
AV
PK
PK
AV
PK
AV
PK
Detecto
r Type
Polar
(H/V)
GFSK Middle Channel:2441MHz
39.55
7.85
25.66
44.76
39.55
7.85
25.66
37.54
38.33
7.52
24.55
45.24
38.33
7.52
24.55
37.37
35.23
6.75
26.59
51.51
39.55
7.85
25.66
45.84
39.55
7.85
25.66
37.11
38.33
7.52
23.55
46.73
38.33
7.52
23.22
36.23
35.45
6.75
27.88
51.97
Frequency
Meter
Reading
Pre-ampli
fier
Cable
Loss
Antenna
Factor
Emission
Level
Limits
Margin
(MHz)
(dBuV)
(dB)
(dB)
(dB)
(dBuV/m)
(dBuV/m)
(dB)
GFSK High Channel:2480MHz
PK
4960.00
54.71
39.55
7.85
25.66
48.67
74.00
-25.33
AV
4960.00
43.35
39.55
7.85
25.66
37.31
54.00
-16.69
PK
7440.00
53.21
38.33
7.52
24.55
46.95
74.00
-27.05
AV
7440.00
43.33
38.33
7.52
24.55
37.07
54.00
-16.93
PK
15453.95
54.69
35.23
6.75
26.59
52.80
74.00
-21.20
PK
4960.00
50.39
39.55
7.85
25.66
44.35
74.00
-29.65
AV
4960.00
43.79
39.55
7.85
25.66
37.75
54.00
-16.25
PK
7440.00
54.60
38.33
7.52
23.55
47.34
74.00
-26.66
AV
7440.00
43.41
38.33
7.52
23.22
35.82
54.00
-18.18
PK
15450.35
52.48
35.45
6.75
27.88
51.66
74.00
-22.34
Remark:
1. Emission Level = Meter Reading + Antenna Factor + Cable Loss – Pre-amplifier,
Margin= Emission Level - Limit
2. If peak below the average limit, the average emission was no test.
3. The amplitude of spurious emissions which are attenuated by more than 20dB below the permissible value
has no need to be reported.
4. All the Modulation are test, the worst mode is GFSK, the data recording in the report.
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Page 23 of 70
Shenzhen BCTC Testing Co., Ltd.
7.5
Report No.: BCTC-FY181206758E
RADIATED Band EMISSION MEASUREMENT
Test Requirement:
FCC Part15 C Section 15.209 and 15.205
LIMITS OF RADIATED EMISSION MEASUREMENT (Above 1000MHz)
FREQUENCY (MHz)
Above 1000
Limit (dBuV/m) (at 3M)
PEAK
AVERAGE
74
54
Notes:
(1) The limit for radiated test was performed according to FCC PART 15C.
(2) The tighter limit applies at the band edges.
(3) Emission level (dBuV/m)=20log Emission level (uV/m).
Spectrum Parameter
Attenuation
Start Frequency
Stop Frequency
RB / VB (emission in restricted band)
Setting
Auto
2300MHz
2520
1 MHz / 1 MHz for Peak, 1 MHz / 10Hz for Average
TEST PROCEDURE
Above 1GHz test procedure as below:
a. 1. The EUT was placed on the top of a rotating table 1.5 meters above the ground at a
3 meter camber. The table was rotated 360 degrees to determine the position of the
highest radiation.
b. The EUT was set 3 meters away from the interference-receiving antenna, which was
mounted on the top of a variable-height antenna tower.
c. The antenna height is varied from one meter to four meters above the ground to
determine the maximum value of the field strength. Both horizontal and vertical
polarizations of the antenna are set to make the measurement.
d. For each suspected emission, the EUT was arranged to its worst case and then the
antenna was tuned to heights from 1 meter to 4 meters and the rota table was turned
from 0 degrees to 360 degrees to find the maximum reading.
e. The test-receiver system was set to Peak Detect Function and Specified Bandwidth
with Maximum Hold Mode.
f. If the emission level of the EUT in peak mode was 10dB lower than the limit specified,
then testing could be stopped and the peak values of the EUT would be reported.
Otherwise the emissions that did not have 10dB margin would be re-tested one by one
using peak, quasi-peak or average method as specified and then reported in a data
sheet.
g. Test the EUT in the lowest channel,the Highest channel
Note:
Both horizontal and vertical antenna polarities were tested
and performed pretest to three orthogonal axis. The worst case emissions were
reported
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Page 24 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
TEST RESULT
GFSK
Pi/4DQPSK
8DPSK
Polar
Frequency
(H/V)
(MHz)
Meter
Pre-
Cable
Antenna
Reading
amplifier
Loss
Factor
(dBuV)
(dB)
(dB)
(dB/m)
2390.00
2400.00
2390.00
2400.00
64.40
55.02
61.25
54.32
2483.50
2485.50
2483.50
2485.50
59.91
53.82
63.25
53.91
2390.00
2400.00
2390.00
2400.00
60.11
52.05
61.41
52.88
2483.50
2485.50
2483.50
2485.50
64.13
51.71
61.75
52.21
2390.00
2400.00
2390.00
2400.00
62.08
54.56
63.41
52.86
2483.50
2485.50
2483.50
2485.50
59.69
52.57
63.04
54.35
Emission
evel
(dBuV/m)
PK
Low Channel 2402MHz
38.06
7.42
20.15
53.91
38.06
7.42
20.15
44.53
38.06
7.42
20.15
50.76
38.06
7.42
20.15
43.83
High Channel 2480MHz
38.17
7.45
20.54
49.73
38.17
7.45
20.54
43.64
38.2
7.45
20.54
53.04
38.2
7.45
20.54
43.70
Low Channel 2402MHz
38.06
7.42
20.15
49.62
38.06
7.42
20.15
41.56
38.06
7.42
20.15
50.92
38.06
7.42
20.15
42.39
High Channel 2480MHz
38.17
7.45
20.54
53.95
38.17
7.45
20.54
41.53
38.2
7.45
20.54
51.54
38.2
7.45
20.54
42.00
Low Channel 2402MHz
38.06
7.42
20.15
51.59
38.06
7.42
20.15
44.07
38.06
7.42
20.15
52.92
38.06
7.42
20.15
42.37
High Channel 2480MHz
38.17
7.45
20.54
49.51
38.17
7.45
20.54
42.39
38.2
7.45
20.54
52.83
38.2
7.45
20.54
44.14
Limits
(dBuV/m)
PK
Result
AV
74.00
74.00
74.00
74.00
54.00
54.00
54.00
54.00
PASS
PASS
PASS
PASS
74.00
74.00
74.00
74.00
54.00
54.00
54.00
54.00
PASS
PASS
PASS
PASS
74.00
74.00
74.00
74.00
54.00
54.00
54.00
54.00
PASS
PASS
PASS
PASS
74.00
74.00
74.00
74.00
54.00
54.00
54.00
54.00
PASS
PASS
PASS
PASS
74.00
74.00
74.00
74.00
54.00
54.00
54.00
54.00
PASS
PASS
PASS
PASS
74.00
74.00
74.00
74.00
54.00
54.00
54.00
54.00
PASS
PASS
PASS
PASS
Remark:
1. Emission Level = Meter Reading + Antenna Factor + Cable Loss – Pre-amplifier, Margin= Emission Level - Limit
2. If the PK measured levels comply with average limit, then the average level were deemed to comply with average limit.
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Page 25 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
8. CONDUCTED EMISSION
8.1
Block Diagram Of Test Setup
Radio Test System
8.2
EUT
Limit
Regulation 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) (see
§15.205(c)).
8.3
Test procedure
1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port
to the spectrum;
2. Set the spectrum analyzer:
Blow 30MHz:
RBW = 100kHz, VBW = 300kHz, Sweep = auto
Detector function = peak, Trace = max hold
Above 30MHz:
RBW = 100KHz, VBW = 300KHz, Sweep = auto
Detector function = peak, Trace = max hold
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Shenzhen BCTC Testing Co., Ltd.
8.4
Report No.: BCTC-FY181206758E
Test Result
30MHz – 25GHz
GFSK Low Channel
GFSK Middle Channel
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Page 27 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
GFSK High Channel
Pi/4 DQPSK Low Channel
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Page 28 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
Pi/4 DQPSK Middle Channel
Pi/4 DQPSK High Channel
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Page 29 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
8DPSK Low Channel
8DPSK Middle Channel
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Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
8DPSK High Channel
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Page 31 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
GFSK Transmitting Band edge-left side
GFSK Hopping Band edge-left side
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Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
GFSK Transmitting Band edge-right side
GFSK Hopping Band edge-right side
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Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
Pi/4 DQPSK Transmitting Band edge-left side
Pi/4 DQPSK Hopping Band edge-left side
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Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
Pi/4 DQPSK Transmitting Band edge-right side
Pi/4 DQPSK Hopping Band edge-right side
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Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
8DPSK Transmitting Band edge-left side
8DPSK Hopping Band edge-left side
FCC Report
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Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
8DPSK Transmitting Band edge-right side
8DPSK Hopping Band edge-right side
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Page 37 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
9. 20 DB BANDWIDTH
9.1
Block Diagram Of Test Setup
Radio Test System
9.2
EUT
Limit
N/A
9.3
Test procedure
1. Set RBW = 100 kHz.
2. Set the video bandwidth (VBW) ≥ 3 x 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 dB relative to the maximum level measured in the fundamental emission.
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Shenzhen BCTC Testing Co., Ltd.
9.4
Report No.: BCTC-FY181206758E
Test Result
Modulation
Test Channel
Bandwidth(MHz)
GFSK
Low
1.099
GFSK
GFSK
Pi/4 DQPSK
Middle
High
Low
1.096
1.098
1.344
Pi/4 DQPSK
Middle
1.345
Pi/4 DQPSK
High
1.347
8DPSK
Low
1.334
8DPSK
Middle
1.336
8DPSK
High
1.336
Test plots
GFSK Low Channel
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Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
GFSK Middle Channel
GFSK High Channel
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Page 40 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
Pi/4 DQPSK Low Channel
Pi/4 DQPSK Middle Channel
FCC Report
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Page 41 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
Pi/4 DQPSK High Channel
8DPSK Low Channel
FCC Report
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Web: Http//www.bctc-lab.com.cn
Page 42 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
8DPSK Middle Channel
8DPSK High Channel
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Page 43 of 70
Shenzhen BCTC Testing Co., Ltd.
10.
MAXIMUM PEAK OUTPUT POWER
10.1
Block Diagram Of Test Setup
Radio Test System
10.2
Report No.: BCTC-FY181206758E
EUT
Limit
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.
10.3
Test procedure
1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port
to the spectrum.
2. Set the spectrum analyzer: RBW = 3MHz. VBW = 3MHz. Sweep = auto; Detector Function
= Peak.
3. Keep the EUT in transmitting at lowest, medium and highest channel individually. Record
the max value.
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Shenzhen BCTC Testing Co., Ltd.
10.4
Report No.: BCTC-FY181206758E
Test Result
Modulation
Test Channel
GFSK
GFSK
Low
Output Power
(dBm)
1.642
Middle
2.113
21
GFSK
High
2.706
21
Pi/4 DQPSK
Low
1.354
21
Pi/4 DQPSK
Middle
1.789
21
Pi/4 DQPSK
High
2.321
21
8DPSK
Low
1.599
21
8DPSK
Middle
1.986
21
8DPSK
High
2.534
21
Limit (dBm)
21
Test plots
GFSK Low Channel
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Page 45 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
GFSK Middle Channel
GFSK High Channel
FCC Report
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Web: Http//www.bctc-lab.com.cn
Page 46 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
Pi/4 DQPSK Low Channel
Pi/4 DQPSK Middle Channel
FCC Report
Tel: 400-788-9558
Web: Http//www.bctc-lab.com.cn
Page 47 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
Pi/4 DQPSK High Channel
8DPSK Low Channel
FCC Report
Tel: 400-788-9558
Web: Http//www.bctc-lab.com.cn
Page 48 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
8DPSK Middle Channel
8DPSK High Channel
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Page 49 of 70
Shenzhen BCTC Testing Co., Ltd.
11.
HOPPING CHANNEL SEPARATION
11.1
Block Diagram Of Test Setup
Radio Test System
11.2
Report No.: BCTC-FY181206758E
EUT
Limit
Frequency hopping systems shall have hopping channel carrier frequencies separated by a
minimum of 25 kHz or the 20 dB bandwidth of the hopping channel, whichever is greater.
Alternatively, 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, whichever is greater, provided the systems operate with
an output power no greater than 0.125W.
11.3
Test procedure
1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port
to the spectrum.
2. Set the spectrum analyzer: RBW = 30kHz. VBW = 100kHz , Span = 3.0MHz. Sweep =
auto; Detector Function = Peak. Trace = Max hold.
3. Allow the trace to stabilize. Use the marker-delta function to determine the separation
between the peaks of the adjacent channels. The limit is specified in one of the
subparagraphs of this Section Submit this plot.
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Page 50 of 70
Shenzhen BCTC Testing Co., Ltd.
11.4
Report No.: BCTC-FY181206758E
Test Result
Modulation
Test Channel
GFSK
GFSK
Low
Separation
(MHz)
1.000
Middle
GFSK
Limit(MHz)
Result
0.733
PASS
1.000
0.731
PASS
High
1.000
0.732
PASS
Pi/4 DQPSK
Low
0.998
0.896
PASS
Pi/4 DQPSK
Middle
1.000
0.897
PASS
Pi/4 DQPSK
High
1.000
0.898
PASS
8DPSK
Low
1.000
0.889
PASS
8DPSK
Middle
1.000
0.891
PASS
8DPSK
High
0.996
0.891
PASS
Test plots
GFSK Low Channel
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Page 51 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
GFSK Middle Channel
GFSK High Channel
FCC Report
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Page 52 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
Pi/4 DQPSK Low Channel
Pi/4 DQPSK Middle Channel
FCC Report
Tel: 400-788-9558
Web: Http//www.bctc-lab.com.cn
Page 53 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
Pi/4 DQPSK High Channel
8DPSK Low Channel
FCC Report
Tel: 400-788-9558
Web: Http//www.bctc-lab.com.cn
Page 54 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
8DPSK Middle Channel
8DPSK High Channel
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Page 55 of 70
Shenzhen BCTC Testing Co., Ltd.
12.
NUMBER OF HOPPING FREQUENCY
12.1
Block Diagram Of Test Setup
Radio Test System
12.2
Report No.: BCTC-FY181206758E
EUT
Limit
Frequency hopping systems in the 2400-2483.5 MHz band shall use at least 15 channels.
12.3
Test procedure
1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port
to the spectrum.
2. Set the spectrum analyzer: RBW = 100kHz. VBW = 300kHz. Sweep = auto; Detector
Function = Peak. Trace = Max hold.
3. Allow the trace to stabilize. It may prove necessary to break the span up to sections. in
order to clearly show all of the hopping frequencies. The limit is specified in one of the
subparagraphs of
this Section.
4. Set the spectrum analyzer: Start Frequency = 2.4GHz, Stop Frequency = 2.4835GHz.
Sweep=auto;
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Shenzhen BCTC Testing Co., Ltd.
12.4
Report No.: BCTC-FY181206758E
Test Result
Test Plots:
79 Channels in total
GFSK
Pi/4 DQPSK
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Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
8DPSK
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Page 58 of 70
Shenzhen BCTC Testing Co., Ltd.
13.
DWELL TIME
13.1
Block Diagram Of Test Setup
Radio Test System
13.2
Report No.: BCTC-FY181206758E
EUT
Limit
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. Frequency
hopping systems may avoid or suppress transmissions on a particular hopping frequency
provided that a minimum of 15 channels are used.
13.3
Test procedure
1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port
to the spectrum.
2. Set spectrum analyzer span = 0. Centred on a hopping channel;
3. Set RBW = 1MHz and VBW = 3MHz.Sweep = as necessary to capture the entire dwell
time per hopping channel. Set the EUT for DH5, DH3 and DH1 packet transmitting.
4. Use the marker-delta function to determine the dwell time. If this value varies with different
modes of operation (e.g.. data rate. modulation format. etc.). repeat this test for each
variation. The limit is specified in one of the subparagraphs of this Section. Submit this
plot(s).
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Shenzhen BCTC Testing Co., Ltd.
13.4
Report No.: BCTC-FY181206758E
Test Result
DH5 Packet permit maximum 1600 / 79 / 6 hops per second in each channel
(5 time slots RX, 1 time slot TX).
DH3 Packet permit maximum 1600 / 79 / 4 hops per second in each channel
(3 time slots RX, 1 time slot TX).
DH1 Packet permit maximum 1600 / 79 /2 hops per second in each channel
(1 time slot RX, 1 time slot TX). So, the Dwell Time can be calculated as follows:
DH5:1600/79/6*0.4*79*(MkrDelta)/1000
DH3:1600/79/4*0.4*79*(MkrDelta)/1000
DH1:1600/79/2*0.4*79*(MkrDelta)/1000
Remark: Mkr Delta is once pulse time.
Modulation
Channel
Data
GFSK
Middle
Pi/4DQPSK
Middle
8DPSK
Middle
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Packet
DH1
DH3
DH5
DH1
DH3
DH5
DH1
DH3
DH5
pulse
time(ms)
0.439
1.712
2.940
0.434
1.694
2.940
0.434
1.688
2.940
Dwell
Time(s)
0.140
0.274
0.314
0.139
0.271
0.314
0.139
0.270
0.314
Web: Http//www.bctc-lab.com.cn
Limits(s)
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
Page 60 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
Test Plots
GFSK DH1 Middle Channel
GFSK DH3 Middle Channel
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Page 61 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
GFSK DH5 High Middle Channel
Pi/4DQPSK DH1 Middle Channel
FCC Report
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Page 62 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
Pi/4DQPSK DH3 Middle Channel
Pi/4DQPSK DH5 Middle Channel
FCC Report
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Page 63 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
8DPSK DH1 Middle Channel
8DPSK DH3 Middle Channel
FCC Report
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Page 64 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
8DPSK DH5 Middle Channel
FCC Report
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Page 65 of 70
Shenzhen BCTC Testing Co., Ltd.
14.
Report No.: BCTC-FY181206758E
ANTENNA 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. This requirement does not apply
to carrier current devices or to devices operated under the provisions of §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
§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.
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 EUT antenna is Internal Antenna, antenna Gain 0dBi. It comply with the standard
requirement.
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Shenzhen BCTC Testing Co., Ltd.
15.
Report No.: BCTC-FY181206758E
EUT PHOTOGRAPHS
EUT Photo 1
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Page 67 of 70
Shenzhen BCTC Testing Co., Ltd.
FCC Report
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Report No.: BCTC-FY181206758E
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Page 68 of 70
Shenzhen BCTC Testing Co., Ltd.
16.
Report No.: BCTC-FY181206758E
EUT TEST SETUP PHOTOGRAPHS
Spurious emissions
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Page 69 of 70
Shenzhen BCTC Testing Co., Ltd.
Report No.: BCTC-FY181206758E
Conducted emissions
※※※※※ END OF REPORT ※※※※※
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Page 70 of 70
Download: PLUSX wireless bluetooth earbuds Test Report  Shenzhen Circlemoon Co., Ltd.
Mirror Download [FCC.gov]PLUSX wireless bluetooth earbuds Test Report  Shenzhen Circlemoon Co., Ltd.
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