NF WAVE FACTORY WF1967, Instruction Manual (Operations

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4.8 Setting and Operation of Sweep
WF1967/WF1968 4-79
p) To output sweep stop value
When the soft-key [StpState] is pressed, it enters into the status to output the sweep stop value.
You can check the status of tested equipment with sweep stop value.
The soft-key [StpState] is displayed when the output is not at the sweep stop value. If the soft-key
[StpState] is not displayed, press the right end soft-
key [▼2/2] to toggle the soft-key set.
In case of gated single sweep, it is in oscillation status with stop value. To stop the oscillation, press
the soft-key [Stop].
q) To output a sweep synchronization signal, sweep marker signal, sweep x drive
signal
Set in the synchronization/sub output [SubOut] on the third page of the setting screen. Select from
the following four options:
•
Signal that synchronizes with reference phase of waveform [Sync]
•
Signal that synchronizes with sweep [SwpSync]
•
Signal that combining a marker signal and a signal that synchronizes with the sweep
[Mkr]
•
X drive signal of sweep [X-Drive]
•
Output disabled [Off]

When [Sync] is selected
Signals with TTL level that are rising at the reference phase of waveform are output from the
synchronization/sub-output terminal.

When [SwpSync] is selected
A TTL level signal that synchronizes with the sweep is output from the synchronization/sub-output
terminal. It changes from high to low at the time of starting sweep.

When [Mkr] is selected
The rising of sweep synchronous output is a marker signal. The sweep synchronous output is low
until it reaches the marker value from the sweep starting value. The sweep synchronization output
does not change on the return path of a shuttle sweep.
Timing for the signal under sweep to pass the marker value can be known.
However, there are the following restrictions for time zone when a synchronous sweep output is low
level.
• Time zone is limited from about 0.05% to 99.95% of the sweep time. Therefore, the time zone
does not change even if the marker value is changed when the marker value is close to the
starting value or the stop value.
• Resolution of time zone is limited to the larger value of either 1/32768 of the sweep time or 2.38ns.
Therefore, the time zone does not necessarily change even if the marker value is changed finely.