JBL CHARGE (serv.man4) EMC - CB Certificate ▷ View online
Report No.: EM201200703-6 Application No.: ZJ00022653 Page 53 of 76
5.4 RADIATED, RADIO-FREQUENCY, ELECTROMAGNETIC FIELD (RS)
5.4.1 TEST SPECIFICATION
Basic Standard
EN 61000-4-3: 2006+A1: 2008+A2: 2010
Frequency Range
80 MHz ~1000 MHz
1.4 GHz ~2.7GHz
Field Strength
3 V/m
Modulation
1kHz Sine Wave, 80%, AM Modulation
Frequency Step
1 % of preceding frequency value
Dwell Time
2s
Polarity of Antenna
Horizontal and Vertical
Test Distance
3 m
Antenna Height
1.5m
5.4.2 TEST PROCEDURE
a) The testing was performed in a fully anechoic chamber. The transmit antenna was located at a
distance of 3 meters from the EUT.
b) The frequency range is swept from 80 MHz to 1000 MHz; 1.4 GHz ~2.7GHz ,with the signal 80%
amplitude modulated with a 1 kHz sine-wave. The rate of sweep did not exceed 1.5 x 10
-3
decade/s, where the frequency range is swept incrementally; the step size was 1% of preceding
frequency value.
frequency value.
c) The dwell time at each frequency shall be not less than the time necessary for the EUT to be able to
respond.
e) The test was performed with the EUT exposed to both vertically and horizontally polarized fields
on each of the four sides.
Report No.: EM201200703-6 Application No.: ZJ00022653 Page 54 of 76
5.4.3 TEST SETUP
Power
Amp
Amp
Signal
Generato
r
EUT Monitoring by
using a camera
using a camera
0.8m
Control Room
9
×
6
×
6
EUT&
Support
Support
Units
PC Controller to
control S.G. & PA as
well as forward
power
control S.G. & PA as
well as forward
power
3 meter
1.5m
Report No.: EM201200703-6 Application No.: ZJ00022653 Page 55 of 76
5.4.4 TEST RESULTS
EUT
Portable wireless speaker
Mode Number
JBL Charge
Test date
2012-11-15
Voltage Supply
AC 230V/50Hz；DC 3.7V
Test Engineer
Liang
environment
Tem:23℃ Hum:48 %100kPa
Test mode:
1. Test the EUT in BT (Adapter ) 、Audio in (Adapter )、BT(Battery)、
Audio in (Battery);
2. Test the EUT in idle mode.
Frequency
(MHz)
Polarity
Azimuth
Field
Strength
(V/m)
Required
Passing
Performance
Actual
performance
Result
80 ~ 1000
V&H
Front
3
Criterion A
Criterion A* PASS
80 ~ 1000
V&H
Rear
3
Criterion A
Criterion A* PASS
80 ~ 1000
V&H
Right
3
Criterion A
Criterion A* PASS
80 ~ 1000
V&H
Left
3
Criterion A
Criterion A* PASS
1400 ~ 2700
V&H
Front
3
Criterion A
Criterion A* PASS
1400 ~ 2700
V&H
Rear
3
Criterion A
Criterion A* PASS
1400 ~ 2700
V&H
Right
3
Criterion A
Criterion A* PASS
1400 ~ 2700
V&H
Left
3
Criterion A
Criterion A* PASS
A*: There was no change compared with the initial operation during the test.
Report No.: EM201200703-6 Application No.: ZJ00022653 Page 56 of 76
5.5 ELECTRICAL FAST TRANSIENT/BURST IMMUNITY TEST
5.5.1 TEST SPECIFICATION
Basic Standard
EN 61000-4-4: 2004+A1: 2010
Test Voltage
Electrical Fast Transient/Burst – EFT:
AC Power Port: ±1kV,Signal port ±0.5kV
Performance Criterion B
AC Power Port: ±1kV,Signal port ±0.5kV
Performance Criterion B
Polarity
Positive and Negative
Impulse Frequency
5 kHz
Impulse Wave-shape
5 ns/50ns for voltage
Burst Duration
15 ms
Burst Period
300 ms
Test Duration
2 minutes
5.5.2 TEST PROCEDURE
The EUT and its simulators shall be placed 0.1m high above the ground reference plane which is a min.
1m×1m metallic sheet with 0.65mm minimum thickness. This reference ground plane shall project
beyond the EUT by at least 0.1m on all sides and the minimum distance between EUT and all other
conductive structure, except the ground plane beneath the EUT, shall be more than 0.5m.
For input and AC power ports:
The EUT is connected to the power mains by using a coupling device which couples the EFT
interference signal to AC power lines. Both polarities of the test voltage should be applied during
compliance test and the duration of the test can’t less than 1min.
5.5.3 TEST SETUP
10 cm isolation
supporter
AC
input
EFT
Generator
EUT
AC
AC Line
Ground Reference Plane
0.5m
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