EM TEST (Switzerland) GmbH
CWS500 N1.3 / N1.4
User manual
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9.2.
Design of CWS 500N1.4 series
The CWS 500N1.3 continuous wave simulator is divided into three main parts. The control unit is completely
separated and uncoupled from the RF power section.
I Control unit
1 Power Supply Filter
2 Transformer
3 Power Supply
4 Interface Board
5 Processor Board
6 Keyboard / LC Display
7 Connection Board
II Generator Unit
8 Signal Generator Connection Board
9 Signal Generator
III RF Power Unit
10 Amplifier
11 Power supply (Amplifier)
12 Bi-Directional Coupler
13 PM 1000 Power Meter
14 Fans
Fig 7.1 : CWS 500 N1.3
9.3.
Control Unit
The control section includes the processing unit and the driver electronics for the high frequency section. All
signals coming from and going to the processing unit are uncoupled.
9.4.
Generator Unit
The signal generator provides all RF signals required for the operation of the amplifier. The signal generator is
controlled by serial communication from the control unit.
9.5.
RF Power Unit
This part is a class A amplifier with a nominal power of 80 watts and forced air cooling.
