User`s guide

User’s and Service Guide Supplement 15
E4438C Option HEC
Repeatable Triggering for Multiple Baseband Sources
ESG-C E4438C Option HEC “Master” Instrument
Set the E4438C “Master” as follows:
1. [Preset] > [Mode] > Dual ARB > Select Waveform. Using the arrow keys to
select RAMP_TEST_WRM on the display, then Select Waveform (*NONE*).
Verify the following: Refer to Figure 10.
• Sample Clock: 100.000 MHz
• IQ Mod Filter: Through
• Ref Freq: 10.000 MHz (Int)
• Trig Type: Continuous (Free Run)
2. [Mode] > Dual ARB > Marker Utilities > Set Marker > Marker 1
(Marker 1 is the default setting for the E4438C.)
Figure 10 Display of the “Master” Settings
NOTE If the settings are not the same as in Figure 10, perform the following:
Trigger (Continuous) > Trigger Setup > Trigger Source (EXT)