Performance Tests
CSA 803C Service Manual 4Ć39
This procedure verifies the correct operation and accuracy of the
CSA 803A's triggersystem.
Specifications
The specifications for triggering using the external trigger are as follows:
100 mVpĆp at 300 MHz
100 mVpĆp at 1000 MHz
100 mVpĆp at 3.0 GHz

Setup to Check Triggering

CSA 803C CH1
TriggerInput
Output
PowerDivider
50WCoaxial Cables
HighFrequency
SineWave
Generator
2XAttenuators
SDĆ24
Sampling
Head

Procedure to Check Triggering

ăStep 1:ăInstall the SDĆ24 Sampling Head into the position shown in the
setup diagram (CH 1/CH 2slot). If the unit was in standby mode, set the
ON/STANDBYswitch to ON.
ăStep 2:ăInitialize the mainframe as follows:
UTILITYbutton press...........................................
Initialize (in major menu) touch..............................
Initialize (in verification popĆup menu) touch..................
ăStep 3:ăAdjust the high frequency generator to 400 mVpĆp at 300 MHz.
ăStep 4:ăOn the Sampling Head, press the Channel 1 select button.
Triggering,External Direct