CAROL BTM-311VH User manual

Rev. No 1.0
FCC Part 15
EMI TEST REPORT
of
E.U.T. : Bluetooth Amplifier
Model No. : BTM-311VH
Serial Model : BTM-311RH、BTM-311R
FCC ID : G4RBTM-311VH
for
APPLICANT : TAIWAN CAROL ELECTRONICS CO .,LTD.
ADDRESS : NO.202.TUNG KUANG
ROAD.TAICHUNG,TAIWAN.
Test Performed by
ELECTRONICS TESTING CENTER, TAIWAN
NO. 34. LIN 5, DINGFU VIL., LINKOU DIST.,
NEW TAIPEI CITY, TAIWAN, 24442, R.O.C.
Tel:[phone] Fax:[phone]
http://www.etc.org.tw ; e-mail : em[email protected]
Report Number : 20-02-RBF-008-01

ETC Report No. : 20-02-RBF-008-01 FCC ID: G4RBTM-311VH
Rev. No 1.0
TEST REPORT CERTIFICATION
Applicant : TAIWAN CAROL ELECTRONICS CO .,LTD.
NO.202.TUNG KUANG ROAD.TAICHUNG, TAIWAN.
Manufacture : TAIWAN CAROL ELECTRONICS CO .,LTD.
NO.202.TUNG KUANG ROAD.TAICHUNG, TAIWAN.
Description of Device :
a) Type of EUT :
Bluetooth Amplifier
b) Trade Name :
CAROL
c) Model No. :
BTM-311VH
d) Serial Model :
BTM-311RH、BTM-311R
e) Power Supply : AC ADAPTER Model: EA10683V-240
I/P:AC 100-240V , 2.0A , 50-60Hz
O/P:DC24V , 3A
f) Frequency Range : 2402 – 2480 MHz
Regulation Applied : FCC Rules and RegulatiAons Part 15 Subpart C
I HEREBY CERTIFY THAT: The data shown in this report were made in accordance with the
procedures given in ANSI C63.10-2013, and the energy emitted by the device was founded to be
within the limits applicable. I assume full responsibility for accuracy and completeness of these
data.
Note: 1. The result of the testing report relate only to the item tested.
2. The testing report shall not be reproduced expect in full, without the written approval of
ETC.
Summary of Tests
Test Results
Radiated Emission Pass
Conducted Emission Pass
Hopping Channel Separation Pass
Number of Hopping frequencies used Pass
Hopping Channel Bandwidth Pass
Dwell Time of each frequency Pass
Output Power Requirement Pass
100 kHz Bandwidth of Frequency Band Edges Requirement Pass
Out-of-Band Conducted Emission Requirement Pass
Duty Cycle N.A.

ETC Report No. : 20-02-RBF-008-01 FCC ID: G4RBTM-311VH
Rev. No 1.0
Table of Contents Page
1 GENERAL INFORMATION....................................................................................................... 1
1.1 Product Description...................................................................................................................... 1
1.2 Test Methodology ........................................................................................................................ 1
1.3 Test Facility.................................................................................................................................. 1
2 PROVISIONS APPLICABLE...................................................................................................... 2
2.1 Definition ..................................................................................................................................... 2
2.2 Requirement for Compliance ....................................................................................................... 3
2.3 Restricted Bands of Operation ..................................................................................................... 5
2.4 Labeling Requirement .................................................................................................................. 6
2.5 User Information .......................................................................................................................... 6
3 SYSTEM TEST CONFIGURATION .......................................................................................... 7
3.1 Justification .................................................................................................................................. 7
3.2 Devices for Tested System........................................................................................................... 8
4 RADIATED EMISSION MEASUREMENT ............................................................................ 11
4.1 Applicable Standard ................................................................................................................... 11
4.2 Measurement Procedure............................................................................................................. 11
4.3 Measuring Instrument ................................................................................................................ 13
4.4 Radiated Emission Data ............................................................................................................. 14
4.5 Field Strength Calculation.......................................................................................................... 50
4.6 Photos of Radiation Measuring Setup........................................................................................ 51
5 CONDUCTED EMISSION MEASUREMENT........................................................................ 57
5.1 Standard Applicable ................................................................................................................... 57
5.2 Measurement Procedure............................................................................................................. 57
5.3 Conducted Emission Data .......................................................................................................... 58
5.4 Result Data Calculation.............................................................................................................. 64
5.5 Conducted Measurement Equipment ......................................................................................... 64
5.6 Photos of Conduction Measuring Setup..................................................................................... 65
6 ANTENNA REQUIREMENT .................................................................................................... 68
6.1 Standard Applicable ................................................................................................................... 68
6.2 Antenna Construction................................................................................................................. 68
7 HOPPING CHANNEL SEPARATION..................................................................................... 69
7.1 Standard Applicable ................................................................................................................... 69
7.2 Measurement Procedure............................................................................................................. 69
7.3 Measurement Equipment ........................................................................................................... 70
7.4 Measurement Data ..................................................................................................................... 70

ETC Report No. : 20-02-RBF-008-01 FCC ID: G4RBTM-311VH
Rev. No 1.0
8 NUMBER OF HOPPING FREQUENCY USED ...................................................................... 75
8.1 Standard Applicable ................................................................................................................... 75
8.2 Measurement Procedure............................................................................................................. 75
8.3 Measurement Equipment ........................................................................................................... 75
8.4 Measurement Data ..................................................................................................................... 76
9 CHANNEL BANDWIDTH......................................................................................................... 81
9.1 Standard Applicable ................................................................................................................... 81
9.2 Measurement Procedure............................................................................................................. 81
9.3 Measurement Equipment ........................................................................................................... 82
9.4 Measurement Data ..................................................................................................................... 82
10 DWELL TIME ON EACH CHANNEL................................................................................... 87
10.1 Standard Applicable ................................................................................................................. 87
10.2 Measurement Procedure........................................................................................................... 87
10.3 Measurement Equipment ......................................................................................................... 87
10.4 Measurement Data ................................................................................................................... 88
11 OUTPUT POWER MEASUREMENT.................................................................................. 102
11.1 Standard Applicable ............................................................................................................... 102
11.2 Measurement Procedure......................................................................................................... 102
11.3 Measurement Equipment ....................................................................................................... 102
11.4 Measurement Data ................................................................................................................. 103
12 100 K H Z BANDWIDTH OF BAND EDGES MEASUREMENT......................................... 108
12.1 Standard Applicable ............................................................................................................... 108
12.2 Measurement Procedure......................................................................................................... 108
12.3 Measurement Equipment ....................................................................................................... 109
12.4 Measurement Data ................................................................................................................. 109
13 CONDUCTED SPURIOUS EMISSION MEASUREMENT............................................... 114
13.1 Standard Applicable ............................................................................................................... 114
13.2 Measurement Procedure......................................................................................................... 114
13.3 Measurement Equipment ....................................................................................................... 115
13.4 Measurement Data ................................................................................................................. 115
14. DUTY CYCLE ........................................................................................................................ 122
14.1 Standard Applicable ............................................................................................................... 122
14.2 Measurement Equipment ....................................................................................................... 122
14.3 Measurement Data ................................................................................................................. 122

ETC Report No. : 20-02-RBF-008-01 FCC ID: G4RBTM-311VH
Sheet 1 of 128 Sheets
Rev. No 2.1
1 GENERAL INFORMATION
1.1 Product Description
a) Type of EUT :
Bluetooth Amplifier
b) Trade Name :
CAROL
c) Model No. :
BTM-311VH
d) Serial Model :
BTM-311RH、BTM-311R
e) Power Supply : AC ADAPTER Model: EA10683V-240
I/P:AC 100-240V , 2.0A , 50-60Hz
O/P:DC 24V , 3A
f) Frequency Range : 2402 – 2480 MHz
1.2 Test Methodology
Both conducted and radiated emissions were performed according to the procedures
illustrated in ANSI C63.10-2013. Other required measurements were illustrated in separate
sections of this test report for details.
Measueement Software
Software Version Note
e3 Version 6.100618f Radiated Emission Test
e3 Version 6.100421 Conducted Emission Test
1.3 Test Facility
Location of the Test site: No.34, Lin 5, Dingfu Vil., Linkou Dist., New Taipei City, Taiwan
24442, R.O.C.
Designation Number: TW2628.

ETC Report No. : 20-02-RBF-008-01 FCC ID: G4RBTM-311VH
Sheet 2 of 128 Sheets
Rev. No 2.1
2 PROVISIONS APPLICABLE
2.1 Definition
Unintentional radiator:
A device that intentionally generates and radio frequency energy for use within the device, or
that sends radio frequency signals by conduction to associated equipment via connecting
wiring, but which is not intended to emit RF energy by radiation or induction.
Class A Digital Device:
A digital device which is marketed for use in commercial or business environment; exclusive
of a device which is market for use by the general public, or which is intended to be used in
the home.
Class B Digital Device :
A digital device which is marketed for use in a residential environment notwithstanding use
in a commercial, business of industrial environment. Example of such devices that are
marketed for the general public.
Note : A manufacturer may also qualify a device intended to be marketed in a commercial,
business, or industrial environment as a Class B digital device, and in fact is
encouraged to do so, provided the device complies with the technical specifications
for a Class B Digital Device. In the event that a particular type of device has been
found to repeatedly cause harmful interference to radio communications, the
Commission may classify such a digital device as a Class B Digital Device,
Regardless of its intended use.
Intentional radiator:
A device that intentionally generates and emits radio frequency energy by radiation or
induction.

ETC Report No. : 20-02-RBF-008-01 FCC ID: G4RBTM-311VH
Sheet 3 of 128 Sheets
Rev. No 2.1
2.2 Requirement for Compliance
(1) Conducted Emission Requirement
Except as shown in paragraphs (b) and (c) of this section, for an intentional radiator
that is designed to be connected to the public utility (AC) power line, the radio
frequency voltage that is conducted back onto the AC power line on any frequency or
frequencies within the band 150kHz to 30 MHz shall not exceed the limits in the
following table, as measured using a 50µH/50 ohms line impedance stabilization
network (LISN). Compliance with the provisions of this paragraph shall be based on
the measurement of the radio frequency voltage between each power line and ground at
the power terminal. The lower limit applies at the boundary between the frequency
ranges.
Frequency
MHz
Quasi Peak
dBµV
Average
dBµV
0.15 - 0.5 66-56* 56-46*
0.5 - 5.0 56 46
5.0 - 30.0 60 50
* Decreases with the logarithm of the frequency
For intentional device, according to §15.207(a) Line Conducted Emission Limits is
same as above table.
(2) Radiated Emission Requirement
For unintentional device, according to §15.109(a), except for Class A digital devices, the
field strength of radiated emissions from unintentional radiators at a distance of 3 meters
shall not exceed the following values:
Frequency
MHz
Distance
Meters
Radiated
dBµV/m
Radiated
µV/m
30 - 88 3 40.0 100
88 - 216 3 43.5 150
216 - 960 3 46.0 200
Above 960 3 54.0 500
For intentional device, according to §15.209(a), the general requirement of field strength
of radiated emissions from intentional radiators at a distance of 3 meters shall not exceed
the above table.

ETC Report No. : 20-02-RBF-008-01 FCC ID: G4RBTM-311VH
Sheet 4 of 128 Sheets
Rev. No 2.1
(3) Antenna 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.
(4) Hopping Channel Separation
According to 15.247(a)(1), 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 125 mW.
(5) Number of Hopping frequencies used
According to 15.247(a)(1)(iii), frequency hopping systems in the 2400–2483.5 MHz
band shall use at least 15 channels.
(6) Hopping Channel Bandwidth
For frequency hopping system operating in the 2400–2483.5 MHz band, there is no
requirement for the maximum 20dB bandwidth of the hopping channel. The
measurement of the hopping channel bandwidth is for the reference of the hopping
channel separation requirement.
(7) Dwell Time of each frequency
According to 15.247(a)(1)(iii), for frequency hopping system operating in the 2400-
2483.5 band, 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.
(8) Output Power Requirement
According to 15.247(b)(1), 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.
(9) 100 kHz Bandwidth of Frequency Band Edges Requirement
According to 15.247(d), in any 100 kHz bandwidth outside the frequency band in which
the spread spectrum or digitally modulated intentional radiator is operating, the radio
frequency power that is produced by the intentional radiator shall be at least 20 dB below
that in the 100 kHz bandwidth within the band that contains the highest level of the
desired power, based on either an RF conducted or a radiated measurement, provided the

ETC Report No. : 20-02-RBF-008-01 FCC ID: G4RBTM-311VH
Sheet 5 of 128 Sheets
Rev. No 2.1
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.
(10) Out-of-Band Conducted Emission Requirement
According to 15.247(d), in any 100 kHz bandwidth outside the frequency band in which
the spread spectrum or digitally modulated intentional radiator is operating, the radio
frequency power that is produced by the intentional radiator shall be at least 20 dB below
that in the 100 kHz bandwidth within the band that contains the highest level of the
desired power, based on either an RF conducted or a radiated measurement, 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.
2.3 Restricted Bands of Operation
Only spurious emissions are permitted in any of the frequency bands listed below :
MHz MHz MHz GHz
0.090 - 0.110 16.42-16.423 399.9-410 4.5-5.15
0.495 - 0.505 ** 16.69475 - 16.69525 608-614 5.35-5.46
2.1735 - 2.1905 16.80425 - 16.80475 960-1240 7.25-7.75
4.125-4.128 25.5-25.67 1300-1427 8.025-8.5
4.17725-4.17775 37.5-38.25 1435-1626.5 9.0-9.2
4.20725-4.20775 73-74.6 1645.5-1646.5 9.3-9.5
6.215-6.218 74.8-75.2 1660-1710 10.6-12.7
6.26775-6.26825 108-121.94 1718.8-1722.2 13.25-13.4
6.31175-6.31225 123-138 2200-2300 14.47-14.5
8.291-8.294 149.9-150.05 2310-2390 15.35-16.2
8.362-8.366 156.52475 - 156.52525 2483.5-2500 17.7-21.4
8.37625-8.38675 156.7-156.9 2655-2900 22.01-23.12
8.41425-8.41475 162.0125-167.17 3260-3267 23.6-24.0
12.29-12.293 167.72-173.2 3332-3339 31.2-31.8
12.51975-12.52025 240-285 3345.8-3358 36.43-36.5
12.57675-12.57725 322-335.4 3360-4400 Above 38.6
13.36-13.41
** : Until February 1, 1999, this restricted band shall be 0.490-0.510 MHz