Agilent Technologies 4294A, Operating Manual

Page: 122 / 469

114 Chapter 5
Setting Measurement Conditions
Specifying Sweep Times and Stopping Sweep
Specifying Sweep Times and Stopping Sweep
You can specify the number of times sweeping is actually executed upon occurrence of a
trigger. After sweeping is repeated the specified times, the sweeping is stopped and no
further sweeping is executed by any trigger that may follow. You can also set the sweeping
to unlimited times (continuous sweep).
Sweeping by specified times and stopping a sweep are selected and executed by a sweep
mode. Pressing the
[Trigger]
key will display the following sweep modes:
The operating instructions for each sweep mode are shown below.
Single sweep
Step 1. Press the
[Trigger]
key to display the trigger menu.
Step 2. Press the
SINGLE
key once to select single sweep.
Step 3. Use the method selected in “Selecting a Method to Start Measurement (Trigger Source)”
on page 111 to trigger. When the triggered single sweep ends, sweeping is put into the
stopping (hold) state. No further sweeping can be triggered after it is stopped.
NOTE When the internal trigger (free-run) is selected in “Selecting a Method to Start
Measurement (Trigger Source)” on page 111, new sweeping starts immediately after step 2
above is performed, and sweeping is put into the stopping state after a single sweep ends.
This means that only pressing the
SINGLE
key will allow you to perform a single sweep.
Sweep by specified times
Step 1. Press the
[Trigger]
key to display the trigger menu.
Step 2. Press the
NUMBER OF GROUPS
key. This will display the current value for the number of
sweeps (sweep groups) to be swept out of the specified number of sweeps in the parameter
settings located in the upper left area of the screen.
Step 3. Use the numeric keys in the ENTRY block (
[0]
to
[9]
) to input a new value for the number
of sweeping times and then press the
[ ´ 1]
key.
NOTE The number of sweeping times described above cannot be entered with the rotary knob ( m
m m
m )
or step key ([
­
][
¯
]).
Step 4. Use the method selected in “Selecting a Method to Start Measurement (Trigger Source)”
on page 111 to trigger. When the triggered single sweep ends, sweeping is put into the
Softkey label Sweep mode
HOLD
Stopping sweep
SINGLE
Single sweep
NUMBER OF GROUPS
Sweeping by specified times
CONTINUOUS
Sweeping unlimited times (continuous sweep)