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Level Gate
High Low
Allows you to set the number of points per sweep, from 101 to 8192 in
Points
non-zero span and 2 to 8192 in zero span (firmware revision A.05.00
and greater). Use the knob, step keys, or numeric keypad to set this
value. When the sweep time is limited by the Analog to Digital
Converter (ADC) sample rate, the sweep time changes with the number
of points selected. The greater the number of points, the longer the
sweep time becomes. If
Factory
sweep will default to 401. The current value of points is displayed next
to the sweep time.
When
sweep points may not be possible. Refer to
page 111
Changing the number of points has several effects on the analyzer.
Since markers are read at the point location, the marker reading may
change. Press
reading. All trace data for the current window is cleared. If in
continuous sweep mode, (
immediately. If average is on (
starts over with a count of 0. With firmware revisions prior to A.08.00,
if Limit Lines are on (
turned off.
Key Access:
By selecting a number of sweep points greater than 401, you are
NOTE
optimizing frequency resolution and accuracy while accepting a reduced
measurement speed. In addition to sweep points, the span, resolution
bandwidth, video bandwidth, average detection and center frequency
will also affect measurement speed.
When zone span is on (
value for points.
Chapter 2
Sets up level polarity that will open the gate. Requires
Option 1D6.
Level Gate (High)
gate.
Level Gate (Low)
the gate.
Key Access:
Preset
), or the analyzer power is cycled, the number of points per
,
FREQUENCY
Scale Type (Log)
for more information.
, again for greater accuracy in the marker
Peak Search
Sweep
Display
Sweep
Span
Selects a high TTL level to open the
selects a low TTL level to open
,
Sweep
Gate
is pressed (and
Preset Type
is selected, the desired number of
"Scale Type Log Lin" on
,
), a new sweep begins
Sweep (Cont)
,
BW/Avg
Average (On)
,
,
,
Limits
Modify
Limit 1 or 2 (On)
,
.
), each window has its own
Zone
Zone (On)
Front-Panel Key Reference
Sweep
is set to
), the averaging
), they are
193
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