Technical data

4-28
Hardkey and Softkey Reference
performed.
SETUP A. sets up four-graticule, four-channel display as described in the 4 PARAM HELP KEYS menu. All four
graticules are in log format.
SETUP B. sets up two-graticule, four-channel display as described in the 4 PARAM HELP KEYS menu.
SETUP C. sets up single-graticule, four-channel display as described in the 4 PARAM HELP KEYS menu.
SETUP D. sets up four-graticule, four-channel display as described in the 4 PARAM HELP KEYS menu. Two of the
graticules are in Smith chart format with the other two in log format.
SETUP E. sets up two-graticule, four-channel display as described in the 4 PARAM HELP KEYS menu.
SETUP F. sets up three-graticule, three-channel display as described in the 4 PARAM HELP KEYS menu.
OPEN (F). for cal kits with different models for male and female test port standards, this selects the short model for a
female test port. Note that the sex of a calibration standard always refers to the test port.
OPEN (M). for cal kits with different models for male and female test port standards, this selects the short model for a
male test port. Note that the sex of a calibration standard always refers to the test port.
SHORT. short calibration standard.
SHOW MENUS. used to display a specific menu prior to a pause statement in a sequence.
SINGLE. takes one sweep of data and returns to the hold mode.
SINGLE POINT. sets the limits at a single stimulus point. If limit lines are on, the upper limit value of a single point limit
is displayed as ∨ and the lower limit is displayed as ∧. A limit test at a single point not terminating a flat or sloped line
tests the nearest actual measured data point. A single point limit can be used as a termination for a flat line or sloping
line limit segment. When a single point terminates a sloping line or when it terminates a flat line and has the same limit
values as the flat line, the single point is not displayed as ∨ and ∧. The indication for a single point segment in the
displayed table of limits is SP.
SINGLE SEG SWEEP. enables a measurement of a single segment of the frequency list, without loss of calibration. The
segment to be measured is selected using the entry block. In single segment mode, selecting a measurement calibration
will force the full list sweep before prompting for calibration standards. The calibration will then be valid for any single
segment. If an instrument state is saved in memory with a single-segment trace, a recall will re-display that segment
while also recalling the entire list.
SLIDING. defines the load as a sliding load. When such a load is measured during calibration, the analyzer will prompt
for several load positions, and calculate the ideal load value from it.
SLOPING LINE. defines a sloping limit line segment that is linear with frequency or other stimulus value, and is
continuous to the next stimulus value and limit. If a sloping line is the final segment, it becomes a flat line terminated at
the stop stimulus. A sloping line segment is indicated as SL on the displayed table of limits.
SMITH CHART. displays a Smith chart format. This is used in reflection measurements to provide a readout of the data
in terms of impedance. It provides information such as the reflection coefficient and input/output impedance of the
DUT.
SMITH MKR MENU. leads to a menu of special markers for use with a Smith chart format.
SMOOTHING APERTURE. lets you change the value of the smoothing aperture as a percent of the span. When smoothing
aperture is the active function, its value in stimulus units is displayed below its percent value in the active entry area.
Smoothing aperture is also used to set the aperture for group delay measurements. Note that the displayed smoothing
aperture is not the group delay aperture unless smoothing is on.
SMOOTHING on OFF. turns the smoothing function on or off for the active channel. When smoothing is on, the
annotation “Smo” is displayed in the status notations area. Use this key to restore power after a power interruption. ON
returns the source power to its original setting, while OFF sets the source to the minimum power level of the analyzer.
SOURCE TUNE OFF. provides service access to pretune the source, without using the phase-locked loop.
SPACE. inserts a space in the title.
Span. is used, along with the Center key, to define the frequency range of the stimulus. When the Span key is pressed,
it becomes the active function. The value is displayed in the active entry area, and can be changed with the knob, step
keys, or numeric keypad.
SPAN. sets the frequency or power span of a subsweep about a specified center frequency.