Sweep Order In Each Channel; Trigger Source - Agilent Technologies ENA Series User Manual

Sweep Order in Each Channel

In a channel, each test port is set to stimulus port in the order of port number and updates
each trace (Table 5-1).
Table 5-1 Sweep Order in Each Channel
Sweep Order
*1.Option 313, 314, 413, or 414 only
*2.Option 413 or 414 only
NOTE If full 2, 3, or 4 port error correction is valid, any traces related to the calibrated ports are
not updated before the last calibrated port is swept as a stimulus port.
Sweep is not executed for the stimulus port which is not required for updating traces.

Trigger Source

The trigger source generates a cue signal that initiates a measurement process. Four types
of trigger sources are available as shown in Table 5-2.
Table 5-2 Trigger Sources and Their Functions
Trigger Sources
Internal (
External (
Manual (
Bus (
Chapter 5
Setting Up the Trigger and Making Measurements
Stimulus Port
Port 1
Port 2
*1
Port 3
*2
Port 4
Function
) Uses a consecutive signal generated by the firmware as a
Internal
trigger source. Triggers are sent immediately following the
completion of each measurement.
) Uses the external trigger input terminal (BNC) as a trigger
External
source.
)
Manual
A trigger will be generated by pressing
) A trigger will be generated by executing a *TRG command.
Bus
Making Measurements
Updated Trace
*1 *2
S , S , S , S
11 21 31 41
*1 *2
S , S , S , S
12 22 32 42
*1 *1 *1 *2
S , S , S , S
13 23 33 43
*2 *2 *2 *2
S , S , S , S
14 24 34 44
- .
Trigger
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