Test Report

FCC ID: VIXSP901

Test Report

Download: PDF

FCCID_2573112

INTERTEK TESTING SERVICES

SUMMARY OF TEST RESULT

TEST SPECIFICATION REFERENCE RESULTS
Transmitter Power Line Conducted Emissions 15.207 Pass
Radiated Emission 15.249
Pass
Radiated Emission on the Bandedge 15.209
Radiated Emission in Restricted Bands 15.205 Pass

The equipment under test is found to be complying with the following standards:
FCC Part 15, October 1, 2013 Edition

Note: 1. The EUT uses a permanently attached antenna which, in accordance to section 15.203, is
considered sufficient to comply with the pervisions of this section.
2. Pursuant to FCC part 15 Section 15.215(c), the 20 dB bandwidth of the emission was contained
within the frequency band designated (mentioned as above) which the EUT operated. The
effects, if any, from frequency sweeping, frequency hopping, other modulation techniques and
frequency stability over excepted variations in temperature and supply voltage were considered.

Report No.: 14101209HKG-001 ii
FCC ID: VIXSP901

INTERTEK TESTING SERVICES

Table of Contents

1.0 General Description .........................................................................................1
1.1 Product Description ........................................................................................1
1.2 Related Submittal(s) Grants............................................................................1
1.3 Test Methodology ...........................................................................................1
1.4 Test Facility ....................................................................................................1

2.0 System Test Configuration..............................................................................2
2.1 Justification.....................................................................................................2
2.2 EUT Exercising Software................................................................................3
2.3 Special Accessories .......................................................................................3
2.4 Measurement Uncertainty...............................................................................3
2.5 Support Equipment List and Description.........................................................3

3.0 Emission Results .............................................................................................4
3.1 Field Strength Calculation...............................................................................4
3.2 Radiated Emission Configuration Photograph ................................................5
3.3 Radiated Emission Data .................................................................................5
3.4 Conducted Emission Configuration Photograph .............................................5
3.5 Conducted Emission Data ..............................................................................5

4.0 Equipment Photographs................................................................................12

5.0 Product Labelling...........................................................................................12

6.0 Technical Specifications ...............................................................................12

7.0 Instruction Manual .........................................................................................12

8.0 Miscellaneous Information ............................................................................13
8.1 Radiated Emission on the Bandedge............................................................13
8.2 Discussion of Pulse Desensitization .............................................................16
8.3 Calculation of Average Factor.......................................................................16
8.4 Emissions Test Procedures ..........................................................................17

9.0 Confidentiality Request.................................................................................21

10.0 Equipment List ...............................................................................................21

Report No.: 14101209HKG-001 iii
FCC ID: VIXSP901

INTERTEK TESTING SERVICES

1.0 General Description

1.1 Product Description

The Equipment Under Test (EUT) is a 2.4GHz Bluetooth 3.0 transceiver
speaker. The EUT is power by an AC Adapter (Model: K15S140100U; Input
100-240V, 50/60Hz, 0.5A; Output: 14.0V, 1.0A) and also contains an 11.1V
rechargeable battery. The Bluetooth module in the EUT is operating in the
frequency range from 2402MHz to 2480MHz (79 channels with 1MHz channel
spacing). After pairing, the audio signal can be fed to the speaker. Also there
is an Aux in for audio input.

This model comes in color variations but are electrically and mechanically the
same. The only difference is the color.

Antenna Type: Internal, Integral

For electronic filing, the brief circuit description is saved with filename: descri.pdf.

1.2 Related Submittal(s) Grants

This is a single application for certification of a transceiver.

1.3 Test Methodology

Both AC mains line-conducted and radiated emission measurements were
performed according to the procedures in ANSI C63.4 (2009). All radiated
measurements were performed in an 3m Chamber. Preliminary scans were
performed in the 3m Chamber only to determine worst case modes. All
radiated tests were performed at an antenna to EUT distance of 3 meters,
unless stated otherwise in the “Justification Section” of this Application.

1.4 Test Facility

The 3m Chamber and conducted measurement facility used to collect the
radiated data is located at Workshop No. 3, G/F., World-Wide Industrial Centre,
43-47 Shan Mei Street, Fo Tan, Sha Tin, N.T., Hong Kong. This test facility and
site measurement data have been placed on file with the FCC.

Report No.: 14101209HKG-001 1
FCC ID: VIXSP901

INTERTEK TESTING SERVICES

2.0 System Test Configuration

2.1 Justification

The system was configured for testing in a typical fashion (as a customer would
normally use it), and in the confines as outlined in ANSI C63.4 (2009).

The device was powered by either AC/DC Adapter (Model: K15S140100U;
Input 100-240V, 50/60Hz, 0.5A; Output: 14.0V, 1.0A) or 11.1V rechargeable
battery pack.

For maximizing emissions, the EUT was rotated through 360°, the antenna
height was varied from 1 meter to 4 meters above the ground plane, and the
antenna polarization was changed. This step by step procedure for maximizing
emissions led to the data reported in Exhibit 3.0.

The rear of unit shall be flushed with the rear of the table.

The equipment under test (EUT) was configured for testing in a typical fashion
(as a customer would normally use it). The EUT was mounted to a plastic stand
if necessary and placed on the wooden turntable, which enabled the engineer to
maximize emissions through its placement in the three orthogonal axes.

Report No.: 14101209HKG-001 2
FCC ID: VIXSP901

INTERTEK TESTING SERVICES

2.2 EUT Exercising Software

There was no special software to exercise the device. Once the unit is
powered up, it transmits the RF signal continuously.

2.3 Special Accessories

There are no special accessories necessary for compliance of this product.

2.4 Measurement Uncertainty

When determining of the test conclusion, the Measurement Uncertainty of test
has been considered.

Uncertainty and Compliance - Unless the standard specifically states that
measured values are to be extended by the measurement uncertainty in
determining compliance, all compliance determinations are based on the actual
measured value.

2.5 Support Equipment List and Description

AC/DC Adaptor (Model: K15S140100U; Input: 100-240VAC 50/60Hz; Output:
14VDC 1A) (Provided by Applicant)

Report No.: 14101209HKG-001 3
FCC ID: VIXSP901

INTERTEK TESTING SERVICES

3.0 Emission Results

Data is included of the worst case configuration (the configuration which resulted
in the highest emission levels). A sample calculation, configuration photographs
and data tables of the emissions are included.

3.1 Field Strength Calculation

The field strength is calculated by adding the Antenna Factor and Cable Factor,
and subtracting the Amplifier Gain (if any), Average Factor (optional) from the
measured reading. The basic equation with a sample calculation is as follows:
FS = RA + AF + CF - AG - AV
where FS = Field Strength in dBµV/m
RA = Receiver Amplitude (including preamplifier) in dBµV
CF = Cable Attenuation Factor in dB
AF = Antenna Factor in dB
AG = Amplifier Gain in dB
AV = Average Factor in dB

In the following table(s), the reading shown on the data table reflects the preamplifier
gain. An example for the calculations in the following table is as follows:
FS = RR + LF
where FS = Field Strength in dBµV/m
RR = RA - AG - AV in dBµV
LF = CF + AF in dB

Assume a receiver reading of 52.0 dBµV is obtained. The antenna factor of
7.4 dB and cable factor of 1.6 dB are added. The amplifier gain of 29 dB and
average factor of 5 dB are subtracted, giving a field strength of 27 dBµV/m.
This value in dBµV/m was converted to its corresponding level in µV/m.

RA = 52.0 dBµV/m
AF = 7.4 dB RR = 18.0 dBµV
CF = 1.6 dB LF = 9.0 dB
AG = 29.0 dB
AV = 5.0 dB
FS = RR + LF
FS = 18 + 9 = 27 dBµV/m

Level in µV/m = Common Antilogarithm [(27 dBµV/m)/20] = 22.4 µV/m

Report No.: 14101209HKG-001 4
FCC ID: VIXSP901

INTERTEK TESTING SERVICES

3.2 Radiated Emission Configuration Photograph

The worst case in radiated emission was found at 116.465 MHz

For electronic filing, the worst case radiated emission configuration photographs
are saved with filename: radiated photos.pdf.

3.3 Radiated Emission Data

The data on the following page lists the significant emission frequencies, the
limit and the margin of compliance. Numbers with a minus sign are below the
limit.

Judgment: Passed by 0.4 dB

3.4 Conducted Emission Configuration Photograph

The worst case in line-conducted emission was found at 0.852 MHz

For electronic filing, the worst case line-conducted configuration photographs
are saved with filename: conducted photo.pdf.

3.5 Conducted Emission Data

For electronic filing, the graph and data table of conducted emission is saved
with filename: conducted.pdf.

Judgment: Pass by 1.86 dB

Report No.: 14101209HKG-001 5
FCC ID: VIXSP901

INTERTEK TESTING SERVICES

Worst-Case Operating Mode: Transmitting (Bluetooth)

RBW 9 kHz
MT 1 s
Att 10 dB AUTO PREAMP OFF
dBµV 100 1 MHz 10 MHz

90
SGL
1 PK
CLRWR
80

2 AV
CLRWR TDS
70

CF15MQP
60

CF15MAV
50

6DB
40 AC

30

20

10

0

150 kHz 30 MHz

Report No.: 14101209HKG-001 6
FCC ID: VIXSP901

INTERTEK TESTING SERVICES

Worst-Case Operating Mode: Transmitting (Bluetooth)

EDIT PEAK LIST (Final Measurement Results)
Trace1: CF15MQP
Trace2: CF15MAV
Trace3: ---
TRACE FREQUENCY LEVEL dBµV DELTA LIMIT dB
1 Quasi Peak 204 kHz 46.85 N gnd -16.59
1 Quasi Peak 280.5 kHz 41.46 L1 gnd -19.33
2 CISPR Average285 kHz 41.01 N gnd -9.65
2 CISPR Average330 kHz 32.03 N gnd -17.42
1 Quasi Peak 402 kHz 40.14 L1 gnd -17.66
1 Quasi Peak 478.5 kHz 39.52 L1 gnd -16.84
1 Quasi Peak 604.5 kHz 35.14 L1 gnd -20.85
1 Quasi Peak 852 kHz 47.34 L1 gnd -8.65
2 CISPR Average852 kHz 44.14 N gnd -1.86
1 Quasi Peak 1.4145 MHz 38.88 L1 gnd -17.11
2 CISPR Average1.4145 MHz 35.06 N gnd -10.93
1 Quasi Peak 1.9815 MHz 38.84 N gnd -17.15
2 CISPR Average1.9815 MHz 31.49 N gnd -14.51
2 CISPR Average2.5485 MHz 27.73 N gnd -18.26
1 Quasi Peak 2.553 MHz 44.75 N gnd -11.24
1 Quasi Peak 3.1155 MHz 39.61 N gnd -16.38
2 CISPR Average3.1155 MHz 27.02 N gnd -18.97
1 Quasi Peak 4.2495 MHz 32.76 N gnd -23.23
2 CISPR Average4.2495 MHz 17.94 N gnd -28.05
1 Quasi Peak 6.2295 MHz 37.15 L1 gnd -22.84

EDIT PEAK LIST (Final Measurement Results)
Trace1: CF15MQP
Trace2: CF15MAV
Trace3: ---
TRACE FREQUENCY LEVEL dBµV DELTA LIMIT dB
2 CISPR Average6.5175 MHz 22.66 N gnd -27.33
2 CISPR Average10.7835 MHz 15.88 N gnd -34.11
1 Quasi Peak 11.067 MHz 26.46 N gnd -33.53
2 CISPR Average11.3505 MHz 14.39 N gnd -35.60
1 Quasi Peak 12.768 MHz 25.51 N gnd -34.48
1 Quasi Peak 19.302 MHz 42.70 L1 gnd -17.29
2 CISPR Average19.302 MHz 34.36 N gnd -15.63
2 CISPR Average24.1305 MHz 23.97 L1 gnd -26.02

Note: Measurement Uncertainty is ±4.2dB at a level of confidence of 95%.

Report No.: 14101209HKG-001 7
FCC ID: VIXSP901

INTERTEK TESTING SERVICES

Applicant: Voxx Accessories Corp. Date of Test: February 04, 2015
Model: SP901
Worst-Case Operating Mode: Transmitting (Bluetooth)

Table 1

Radiated Emissions
Pursuant to FCC Part 15 Section 15.249 Requirement

Lowest Channel
Pre-Amp Antenna Net at Average Calculated Average Limit
Polari- Frequency Reading Gain Factor 3m - Peak Factor at 3m at 3m Margin
zation (MHz) (dBμV) (dB) (dB) (dBμV/m) (dB) (dBμV/m) (dBμV/m) (dB)
H 2402.000 99.0 33 29.4 95.4 24 71.4 94.0 -22.6
V 4804.000 57.4 33 34.9 59.3 24 35.3 54.0 -18.7
V 7206.000 53.5 33 37.9 58.4 24 34.4 54.0 -19.6
V 9608.000 50.1 33 40.4 57.5 24 33.5 54.0 -20.5
V 12010.000 48.9 33 40.5 56.4 24 32.4 54.0 -21.6
V 14412.000 48.5 33 40.0 55.5 24 31.5 54.0 -22.5

Pre-Amp Antenna Net at Peak Limit
Polari- Frequency Reading Gain Factor 3m - Peak at 3m Margin
zation (MHz) (dBμV) (dB) (dB) (dBμV/m) (dBμV/m) (dB)
H 2402.000 99.0 33 29.4 95.4 114.0 -18.6
V 4804.000 57.4 33 34.9 59.3 74.0 -14.7
V 7206.000 53.5 33 37.9 58.4 74.0 -15.6
V 9608.000 50.1 33 40.4 57.5 74.0 -16.5
V 12010.000 48.9 33 40.5 56.4 74.0 -17.6
V 14412.000 48.5 33 40.0 55.5 74.0 -18.5

NOTES: 1. Peak Detector Data unless otherwise stated.

2. All measurements were made at 3 meters. Harmonic emissions not
detected at the 3-meter distances were measured at 0.3-meter and an
inverse proportional extrapolation was performed to compare the signal
level to the 3-meter limit. No other harmonic emissions than those
reported were detected at a test distance of 0.3-meter.

3. Negative sign in the column shows value below limit.

4. Horn antenna is used for the emission over 1000MHz.

5. Emission (the row indicated by bold italic) within the restricted band meets
the requirement of FCC Part 15 Section 15.205.

6. Measurement Uncertainty is ±5.3dB at a level of confidence of 95%.

Report No.: 14101209HKG-001 8
FCC ID: VIXSP901

INTERTEK TESTING SERVICES

Applicant: Voxx Accessories Corp. Date of Test: February 04, 2015
Model: SP901
Worst-Case Operating Mode: Transmitting (Bluetooth)

Table 2

Radiated Emissions
Pursuant to FCC Part 15 Section 15.249 Requirement

Middle Channel
Pre-Amp Antenna Net at Average Calculated Average Limit
Polari- Frequency Reading Gain Factor 3m - Peak Factor at 3m at 3m Margin
zation (MHz) (dBμV) (dB) (dB) (dBμV/m) (dB) (dBμV/m) (dBμV/m) (dB)
H 2440.000 99.7 33 29.4 96.1 24 72.1 94.0 -21.9
V 4880.000 57.7 33 34.9 59.6 24 35.6 54.0 -18.4
V 7320.000 53.8 33 37.9 58.7 24 34.7 54.0 -19.3
V 9760.000 50.2 33 40.4 57.6 24 33.6 54.0 -20.4
V 12200.000 49.0 33 40.5 56.5 24 32.5 54.0 -21.5
V 14640.000 50.0 33 38.4 55.4 24 31.4 54.0 -22.6

Pre-Amp Antenna Net at Peak Limit
Polari- Frequency Reading Gain Factor 3m - Peak at 3m Margin
zation (MHz) (dBμV) (dB) (dB) (dBμV/m) (dBμV/m) (dB)
H 2440.000 99.7 33 29.4 96.1 114.0 -17.9
V 4880.000 57.7 33 34.9 59.6 74.0 -14.4
V 7320.000 53.8 33 37.9 58.7 74.0 -15.3
V 9760.000 50.2 33 40.4 57.6 74.0 -16.4
V 12200.000 49.0 33 40.5 56.5 74.0 -17.5
V 14640.000 50.0 33 38.4 55.4 74.0 -18.6

NOTES: 1. Peak Detector Data unless otherwise stated.

2. All measurements were made at 3 meters. Harmonic emissions not
detected at the 3-meter distances were measured at 0.3-meter and an
inverse proportional extrapolation was performed to compare the signal
level to the 3-meter limit. No other harmonic emissions than those
reported were detected at a test distance of 0.3-meter.

3. Negative sign in the column shows value below limit.

4. Horn antenna is used for the emission over 1000MHz.

5. Emission (the row indicated by bold italic) within the restricted band meets
the requirement of FCC Part 15 Section 15.205.

6. Measurement Uncertainty is ±5.3dB at a level of confidence of 95%.

Report No.: 14101209HKG-001 9
FCC ID: VIXSP901

INTERTEK TESTING SERVICES

Applicant: Voxx Accessories Corp. Date of Test: February 04, 2015
Model: SP901
Worst-Case Operating Mode: Transmitting (Bluetooth)

Table 3

Radiated Emissions
Pursuant to FCC Part 15 Section 15.249 Requirement

Highest Channel
Pre-Amp Antenna Net at Average Calculated Average Limit
Polari- Frequency Reading Gain Factor 3m - Peak Factor at 3m at 3m Margin
zation (MHz) (dBμV) (dB) (dB) (dBμV/m) (dB) (dBμV/m) (dBμV/m) (dB)
H 2480.000 100.3 33 29.4 96.7 24 72.7 94.0 -21.3
V 4960.000 58.0 33 34.9 59.9 24 35.9 54.0 -18.1
V 7440.000 53.8 33 37.9 58.7 24 34.7 54.0 -19.3
V 9920.000 50.4 33 40.4 57.8 24 33.8 54.0 -20.2
V 12400.000 49.2 33 40.5 56.7 24 32.7 54.0 -21.3
V 14880.000 50.4 33 38.4 55.8 24 31.8 54.0 -22.2

Pre-Amp Antenna Net at Peak Limit
Polari- Frequency Reading Gain Factor 3m - Peak at 3m Margin
zation (MHz) (dBμV) (dB) (dB) (dBμV/m) (dBμV/m) (dB)
H 2480.000 100.3 33 29.4 96.7 114.0 -17.3
V 4960.000 58.0 33 34.9 59.9 74.0 -14.1
V 7440.000 53.8 33 37.9 58.7 74.0 -15.3
V 9920.000 50.4 33 40.4 57.8 74.0 -16.2
V 12400.000 49.2 33 40.5 56.7 74.0 -17.3
V 14880.000 50.4 33 38.4 55.8 74.0 -18.2

NOTES: 1. Peak Detector Data unless otherwise stated.

2. All measurements were made at 3 meters. Harmonic emissions not
detected at the 3-meter distances were measured at 0.3-meter and an
inverse proportional extrapolation was performed to compare the signal
level to the 3-meter limit. No other harmonic emissions than those
reported were detected at a test distance of 0.3-meter.

3. Negative sign in the column shows value below limit.

4. Horn antenna is used for the emission over 1000MHz.

5. Emission (the row indicated by bold italic) within the restricted band meets
the requirement of FCC Part 15 Section 15.205.

6. Measurement Uncertainty is ±5.3dB at a level of confidence of 95%.

Report No.: 14101209HKG-001 10
FCC ID: VIXSP901

INTERTEK TESTING SERVICES

Applicant: Voxx Accessories Corp. Date of Test: February 04, 2015
Model: SP901
Worst-Case Operating Mode: Music Playing (Bluetooth)

Table 4

Radiated Emissions
Pursuant to FCC Part 15 Section 15.209 Requirement

Pre- Antenna Net Lim it
Frequency Reading am p Factor at 3m at 3m Margin
Polarization (MHz) (dBμV) (dB) (dB) (dBμV/m) (dBμV/m) (dB)
V 60.235 42.7 16 10.0 36.7 40.0 -3.3
V 112.765 42.6 16 14.0 40.6 43.5 -2.9
V 116.465 45.1 16 14.0 43.1 43.5 -0.4
V 126.544 44.2 16 14.0 42.2 43.5 -1.3
H 138.675 43.5 16 14.0 41.5 43.5 -2.0
H 202.346 38.2 16 16.0 38.2 43.5 -5.3
H 220.233 36.4 16 17.0 37.4 46.0 -8.6
H 252.565 35.0 16 20.0 39.0 46.0 -7.0
H 274.784 30.6 16 22.0 36.6 46.0 -9.4
H 346.122 29.4 16 24.0 37.4 46.0 -8.6

NOTES: 1. Peak Detector Data unless otherwise stated.

2. All measurements were made at 3 meters. Harmonic emissions not
detected at the 3-meter distances were measured at 0.3-meter and an
inverse proportional extrapolation was performed to compare the signal
level to the 3-meter limit. No other harmonic emissions than those
reported were detected at a test distance of 0.3-meter.

3. Negative sign in the column shows value below limit.

4. Horn antenna is used for the emission over 1000MHz.

5. Emission (the row indicated by bold italic) within the restricted band meets
the requirement of FCC Part 15 Section 15.205.

6. Measurement Uncertainty is ±5.3dB at a level of confidence of 95%.

Report No.: 14101209HKG-001 11
FCC ID: VIXSP901

INTERTEK TESTING SERVICES

4.0 Equipment Photographs

For electronic filing, the photographs are saved with filename: external photos.pdf
and internal photos.pdf.

5.0 Product Labelling

For electronics filing, the FCC ID label artwork and the label location are saved
with filename: label.pdf.

6.0 Technical Specifications

For electronic filing, the block diagram and schematic of the tested EUT are
saved with filename: block.pdf and circuit.pdf respectively.

7.0 Instruction Manual

For electronic filing, a preliminary copy of the Instruction Manual is saved with
filename: manual.pdf.

This manual will be provided to the end-user with each unit sold/leased in the
United States.

Report No.: 14101209HKG-001 12
FCC ID: VIXSP901

INTERTEK TESTING SERVICES

8.0 Miscellaneous Information

The miscellaneous information includes details of the test procedure and
measured bandwidth / calculation of factor such as pulse desensitization and
averaging factor (calculation).

8.1 Radiated Emission on the Bandedge

From the following plots, they show that the fundamental emissions are confined
in the specified band (2400MHz to 2483.5MHz). In case of the fundamental
emissions are within two standard bandwidths from the bandedge, the delta
measurement technique is used for determining bandedge compliance.
Standard bandwidth is the bandwidth specified by ANSI C63.4 (2009) for
frequency being measured.

Emissions radiated outside of the specified frequency bands, except harmonics,
are attenuated by 50dB below the level of the fundamental or to the general
radiated emissions limits in Section 15.209, whichever is the lesser attenuation,
which meet the requirement of part 15.249(d).

Report No.: 14101209HKG-001 13
FCC ID: VIXSP901

INTERTEK TESTING SERVICES

Peak Measurement

Bandedge compliance is determined by applying marker-delta method, i.e.
(Bandedge Plot).

Lower bandedge

Peak Resultant field strength = Fundamental emissions (peak value) – delta
from the plot

=95.4 dBµV/m - 44.4 dB
=51.0 dBµV/m

Average Resultant field strength = Fundamental emissions (average value) –
delta from the plot

=71.4 dBµV/m - 44.4 dB
=27.0 dBµV/m

Upper bandedge

Peak Resultant field strength = Fundamental emissions (peak value) – delta
from the plot

=96.7 dBµV/m - 49.3 dB
=47.4 dBµV/m

Average Resultant field strength = Fundamental emissions (average value) –
delta from the plot

=72.7 dBµV/m - 49.3 dB
=23.4 dBµV/m

The resultant field strength meets the general radiated emission limit in
Section 15.209, which does not exceed 74 dBµV/m (Peak Limit) and 54 dBµV/m
(Average Limit).

Report No.: 14101209HKG-001 15
FCC ID: VIXSP901

INTERTEK TESTING SERVICES

8.2 Discussion of Pulse Desensitization

Pulse desensitivity is not applicable for this device. The effective period (Teff)
is approximately 625µs for a digital “1” bit which illustrated on technical
specification, with a resolution bandwidth (3dB) of 1MHz, so the pulse
desensitivity factor is 0dB.

8.3 Calculation of Average Factor

Based on the Bluetooth Specification Version 3.0, the transmitter ON time for
each timeslot of Bluetooth is 625µs. DH5 has the maximum duty cycle, which
consists of 5 continuous Tx slots and 1 Rx slot. Therefore one hopset take
(5+1) x 625µs = 3.75ms. For one period for a pseudo-random hopping through
at least 20 RF channels in adaptive mode (worse case), it take: 20 x 3.75ms =
75ms.

The dwell time for DH5 is 5 x 625µs = 3.125ms.

For the worst case calculation, there are two transmissions might occur in
100ms. Therefore,

Duty Cycle (DC) = Maximum On time in 100ms/100ms
= 3.125ms x 2/100ms
= 0.0625

Average Factor (AF) of Bluetooth in dB = 20 log10 (0.0625)
= -24 dB

Report No.: 14101209HKG-001 16
FCC ID: VIXSP901

INTERTEK TESTING SERVICES

8.4 Emissions Test Procedures (cont’d)

The EUT is warmed up for 15 minutes prior to the test.

AC power to the unit is varied from 85% to 115% nominal and variation in the
fundamental emission field strength is recorded. If battery powered, a new,
fully charged battery is used.

Conducted measurements were made as described in ANSI C63.4 (2009).

The IF bandwidth used for measurement of radiated signal strength was 100 kHz
or greater when frequency is below 1000 MHz. Where pulsed transmissions of
short enough pulse duration warrant, a greater bandwidth is selected according
to the recommendations of Hewlett Packard Application Note 150-2. A discussion
of whether pulse desensitivity is applicable to this unit is included in this report
(See Exhibit 8.1). Above 1000 MHz, a resolution bandwidth of 3 MHz is used.

Transmitter measurements are normally conducted at a measurement distance
of three meters. However, to assure low enough noise floor in the forbidden
bands and above 1 GHz, signals are acquired at a distance of one meter or less. All
measurements are extrapolated to three meters using inverse scaling, unless
otherwise reported. Measurements taken at a closer distance are so marked.

Report No.: 14101209HKG-001 18
FCC ID: VIXSP901

INTERTEK TESTING SERVICES

8.4.1 Radiated Emission Test Setup

The figure below shows the test setup, which is utilized to make these
measurements.

Antenna
Tower
1.0~4.0m

3m Receiver
Antenna

EUT &
Peripherals

0.8m

Ground Plane

□

RF Test
Receiver

Report No.: 14101209HKG-001 19
FCC ID: VIXSP901

INTERTEK TESTING SERVICES

8.4.2 Conducted Emission Test Procedures

For tabletop equipment, the EUT along with its peripherals were placed on a
1.0m(W)×1.5m(L) and 0.8m in height wooden table. For floor-standing
equipment, the EUT and all cables were insulated, if required, from the ground
plane by up to 12 mm of insulating material. The EUT was adjusted to maintain
a 0.4 meter space from a vertical reference plane. The EUT was connected to
power mains through a line impedance stabilization network (LISN), which
provided 50 ohm coupling impedance for measuring instrument and the chassis
ground was bounded to the horizontal ground plane of shielded room. The
excess power cable between the EUT and the LISN was bundled.

All connecting cables of EUT and peripherals were moved to find the maximum
emission.

8.4.3 Conducted Emission Test Setup

AC Power
LISN 1 EUT Peripherals LISN 2

EMI
Receiver AC Power

Report No.: 14101209HKG-001 20
FCC ID: VIXSP901

INTERTEK TESTING SERVICES

9.0 Confidentiality Request

For electronic filing, a preliminary copy of the confidentiality request is saved
with filename: request.pdf.

10.0 Equipment List

1) Radiated Emissions Test
Equipment EMI Test Receiver Biconical Antenna Log Periodic Antenna
Registration No. EW-2500 EW-0571 EW-0446
Manufacturer R&S EMCO EMCO
Model No. ESCI 3104C 3146
Calibration Date Nov. 06, 2014 Nov. 01, 2013 Nov. 10, 2014
Calibration Due Date Nov. 06, 2015 May 01, 2015 May 10, 2016

Equipment Spectrum Analyzer Pyramidal Horn Double Ridged Guide
Antenna Antenna
Registration No. EW-2188 EW-0905 EW-1133
Manufacturer AGILENTTECH EMCO EMCO
Model No. E4407B 3160-09 3115
Calibration Date Apr. 16, 2014 Jan. 28, 2014 Apr. 30, 2014
Calibration Due Date Apr. 16, 2015 Jul. 28, 2015 Oct. 30, 2015

2) Conducted Emissions Test
Equipment EMI Test Receiver LISN Pulse Limiter
Registration No. EW-2500 EW-0192 EW-0698
Manufacturer R&S R&S R&S
Model No. ESCI ESH3-Z5 ESH3-Z2
Calibration Date Nov. 06, 2014 Jul. 24, 2014 Jul. 07, 2014
Calibration Due Date Nov. 06, 2015 Apr. 15, 2015 Jul. 07, 2015

3) Bandedge Measurement
Equipment Spectrum Analyzer
Registration No. EW-2329
Manufacturer R&S
Model No. FSP3
Calibration Date Jun. 19, 2014
Calibration Due Date Jun. 19, 2015

END OF TEST REPORT

Report No.: 14101209HKG-001 21
FCC ID: VIXSP901

Document Created: 2015-03-12 12:33:22
Document Modified: 2015-03-12 12:33:22

© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC