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SECTION 3
START PHASE (Start phase)
CMODIFYI BZEI
The START PHASE key allows you to set the
sweep start phase. You can specify a start phase
that is either higher or lower than the stop phase.
The relationship between the start and stop
phase values determines the sweep direction. If
the start phase is higher than the stop phase, the
sweep will be performed in a descending direc-
tion. If the start phase is lower than the stop
phase, the sweep will be performed in the as-
cending direction.
STOP PHASE (Stop phase)
[MODIFYI [SIZE]
The STOP PHASE key allows you to set the stop
phase of the phase sweep. You can specify a stop
phase that is either higher or lower than the start
phase. If the stop phase is higher than the start
phase, the sweep will be performed in ascending
order. If the stop phase is lower than the start
phase, the sweep will be performed in descend-
ing order.
If the stop phase is changed, the sweep range will
be determined by the new stop phase and the ex-
isting start phase.
CTR (Center phase)
[MODIFY]
iTSIZE
The CTR key allows setting of the center phase of
the sweep.
The relationship between the existing start and
stop phase values determines the sweep direc-
tion. If the center phase is changed, the start and
stop phase will be changed, but the span phase
will remain constant.
CTR 4 (Substitute ten ter phase for marker phase)
EHIFU
The CTR 4 key substitutes the center phase for
the marker phase. The sweep direction and span
phase are affected in the same manner as when
using the center phase setting. If the substituted
center phase is different than the marker phase,
the start and stop phase will change accordingly.
SPAN (phase span)
MODIFY] NZ-J3
This key allows you to set the phase span of the
phase sweep. The relationship between the start
and stop phase values determines the sweep di-
rection. If the phase span is changed, the start
and stop phase will be changed so that the sweep
range is determined by the new phase span and
the existing center phase. The existing center
phase will not change.
MKR (Marker phase)
[SHIFT], [MODIFYI BZEI
This key allows you to set the marker phase of
the phase sweep. Note that you can specify only
one marker phase. While the oscillation fre-
quency is higher than the programmed marker
frequency during a sweep, the marker output
signal available at the rear panel MKR OUT jack
will be set low. The marker output signal at MKR
OUT will be set high at all other times.
SWEEP FCTN (Sweep function)
[MODIFY]
The SWEEP FCTN key allows you to select the
sweep function. Available sweep functions in-
clude: step (11, linear triangular wave and saw-
tooth wave (A or n ), and log triangular wave
or sawtooth wave (A or n >.
With the step sweep function, the output phase
simply changes between the start phase and stop
phase at intervals determined by the sweep time.
With the linear and log functions, the phase in-
creases or decreases linearly or logarithmically,
respectively.
SWEEP TIME (Sweep time)
[MODIFY] HZEI
The SWEEP TIME key allows you to set the
sweep time, which is the time from the start
phase to the stop phase. The allowed sweep time
range is: 5msec to 9,999sec.
SWEEP
OPR (Sweep Operation)
SlNGL START (Single start: singZe-sweep start)
This key starts a single sweep. Only one sweep
will be generated per key press.
3-6
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