YOKOGAWA FG420, Руководство пользователя

Страница: 109 / 180

95 IM FG410-01EN
Note that, in the case of the FG420, the MAN TRIG key works for the channel whose display is
active.
For details on the channel whose display is active,

p.42 .
To use only manual trigger manipulation and remote trigger manipulation as the trigger, set
the trigger source to [Ext] (external). Also, to prevent malfunction due to external noise, it is
recommended to set the polarity to [Off].
l) To start sweep →[Start] soft key or trigger
When, during continuous sweep, the mode is the sweep oscillation mode, the sweep operation starts
automatically.
However, if the sweep setting is improper, sweep oscillation will not start. ([Conflict!] is displayed in
the top right part of the screen.) When the [?] soft key appearing at the left end is pressed, a message
about the inappropriate setting is displayed. Once the setting has been changed to a suitable setting,
sweep oscillation starts.
If sweep operation is currently stopped, press the [Start] soft key to start it. If the [Start] key is not
displayed, press the [▼2/2] soft key on the right end to switch soft key sets.
In the case of single-shot sweep and gated single-shot sweep, sweeping starts upon receipt of a
trigger.
However, if the sweep setting is improper, no trigger can be received ([Conflict!] is displayed in the
top right part of the screen). When the [?] soft key appearing at the left end is pressed, a message
about the inappropriate setting is displayed. Once the setting has been changed to a suitable setting,
trigger reception becomes possible.
The [Start] soft key and the
MAN TRIG
manual trigger key on the panel operate like manual trigger
regardless of the trigger source setting.
m) To stop sweep →[Stop] soft key
When the [Stop] soft key is pressed during sweep execution, the sweep operation stops and the sweep
start value output state (and not the stop value output state) is entered. When the [Stop] soft key is not
displayed, press the [▼2/2] soft key on the right end to switch soft key sets.
However, during single-shot sweep and gated single-shot sweep, sweeping resumes upon receipt of a
new trigger.
n) To pause sweep →[Hold] soft key
Press the [Hold] soft key during sweep execution to pause the sweep operation. Then, when the
[Resume] soft key is pressed, the sweep operation resumes from where it was paused. If the [Hold] or
[Resume] soft key is not displayed, press the [▼2/2] soft key on the right end to switch the soft key
sets.
However, during hold for single-shot sweep and gated single-shot sweep, sweeping starts from the
start upon receipt of a new trigger.
The [Hold] and [Resume] soft keys are displayed in the same location. [Hold] is displayed during
sweep execution, and [Resume] is displayed when the sweep operation is paused.
o) To output the sweep start value →[SttState] soft key
Press the [SttState] soft key to set the sweep start value output state.
The status of the equipment under test at the sweep start value can be checked.
The [SttState] soft key is displayed in the sweep start value output state or in the sweep stop value
output state. If the [SttState] soft key is not displayed, press the [▼2/2] soft key on the right end to
switch the soft key sets.
In the case of gated single-shot sweep, the state is the start value oscillation state. To stop oscillation,
press the [Stop] soft key.
4.8 Sweep Setting and Manipulation