Yamaha V150A User Manual Page 29

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Cables and wiring harnesses in automobiles function as antennas
with which many types of transmissions (radio, TV, mobile phone,
Bluetooth, etc.) can disturb or aect electronics in the vehicle. With
the CWS N in a clearly arranged test set-up you can generate
narrow-band interference signals that are induced via BCI current-
injection using the substitution or closed loop method. The BCI
clamp is a current transformer that is positioned around the wiring
harness. In the substitution method, the disturbance signal is calibra-
ted in a dened calibration circuit and the level is saved and used
during the testing. In the closed loop method, the disturbance current
is measured with the internal measurement instrument. The control
algorithm calculates the output signal and controls the disturbance
signal at the required level.
The BCI testing method is used in automotive, military and aerospace
testing to ensure the immunity of individual components in complex
systems.
TECHNICAL DATA EXCERPT
Frequency range  kHz– MHz (internal amplifier),
 kHz–, MHz (external amplifier)
Modulation CW, AM  Hz to , Hz, % to %
AM  kHz, % (IEC --), kHz, %
(automotive),  Hz, %,  Hz, %
(automotive), Hz, % (IEC --)
Measurement -channel power meter, measures forward
power (FWD), reverse power (REW),
coupled current
Dual directional coupler Built-in to measure FWD, REW
Interface GPIB, USB
Power input  V or  V / Hz
Fuses  x . AT ( V) oder  x . AT ( V)
Dimensions "/ HU
Weight  kg
RF TEST SYSTEM FOR BCI
CWSN
GENERATED INTERFERIANCE SIGNALS
> Compact RF test system
for reproducible tests
> Supports BCI,
stripline or TEM cell testing
> Basic frequency range from
 kHz to  MHz
> Expanded frequency range
up to  GHz
Continuous wave (unmodulated signal)
Amplitude modulation AM (automotive manufacturer
standard) frequency  Hz, % modulation
Amplitude modulation AM
(medical equipment)
frequency  Hz, % modulation
Amplitude modulation AM
(telecom equipment)
frequency  Hz, % modulation
Amplitude modulation AM
(IEC--)
frequency  kHz, % modulation
Amplitude modulation AM
(automotive manufacturer
standard) frequency  kHz, % modulation
Pulse modulation
(MIL-STD- and automotive)
frequency up to  kHz, % duty cycle/period
Pulse modulation
(Alarm System Components EN -)
frequency  Hz, % duty cycle/period
ICD SOFTWARE
FOR CWS N
PRODUCT RANGE
CWS N Continuous wave simulator  W
CWS N. Continuous wave simulator  W
CWS N-MF CWS without internal amplifier for
external amplifier use
F-A- BCI clamp ( kHz)  MHz to  MHz
F- Current clamp  kHz to  MHz
F- BCI clamp  kHz to , MHz
F- Current clamp ( kHz)  kHz to , MHz
SUPPORTED STANDARDS
International: ISO, JASO, SAE, ETS, GOST
Manufacturer*: BMW, Mercedes, Volkswagen,
Ford, General Motors, Chrysler,
FIAT, PSA, Renault, Volvo, Jaguar/Landrover,
Nissan, Toyota,
MAN, Iveco, Case New Holland, Piaggio
Others: MIL, VG, aircraft
*Supported standards, see page 
FREESTYLE
** Amplitude, frequency and modulation can be selected without restriction.
**
The integrated standards library with images of standard
test set-ups and intuitive operation make complex BCI
and stripline tests so easy.
 
AUTOMOTIVE > EMC TEST SYSTEMS FOR AUTOMOTIVE ELECTRONICSAUTOMOTIVE > EMC TEST SYSTEMS FOR AUTOMOTIVE ELECTRONICS
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