Technical data

4-8
Hardkey and Softkey Reference
block diagram.
COUNTER: OFF. switches the internal counter off and removes the counter display from the LCD.
COUPLED CH ON off. toggles the channel coupling of stimulus values. With COUPLED CH ON (the preset condition),
both channels have the same stimulus values of FREQUENCY, NUMBER of POINTS, SOURCE PWR, NUMBER of
GROUPS, SWEEP TIME, IF BW, TRIGGER TYPE, and SWEEP TYPE (the inactive channel takes on the stimulus values
of the active channel).
COUPLED SW ON/OFF. couples the RF switch settings to the measurement setup. If the switch is set to OFF, you can set
the RF switches manually. The switch will remain in that state until you change it. If the switch is set to ON, the RF
switches will revert back to the setup-required state at the end of the sweep.
CW FREQ. is used to set the frequency for power sweep and CW time sweep modes. If the instrument is not in either of
these two modes, it is automatically switched into CW time mode.
CW TIME. turns on a sweep mode similar to an oscilloscope. The analyzer is set to a single frequency, and the data is
displayed versus time. The frequency of the CW time sweep is set with CW FREQ in the stimulus menu.
D2/D1 to D2 on OFF. this math function ratios channels 1 and 2, and puts the results in the channel 2 data array. Both
channels must be on and have the same number of points.
DAC NUM HIGH BAND. sets the source tune DAC for frequencies above 20.05 GHz.
DAC NUM LOW BAND. sets the source tune DAC for frequencies below 2.55 GHz.
DAC NUM MID BAND. sets the source tune DAC for frequencies above 2.55 GHz and below 20.05 GHz.
DATA ARRAY on OFF. specifies whether or not to store the error-corrected data on disk with the instrument state.
DATA → MEMORY. stores the current active measurement data in the memory of the active channel. It then becomes
the memory trace, for use in subsequent math manipulations or display. If a parameter has just been changed and the *
status notation is displayed at the left of the display, the data is not stored in memory until a clean sweep has been
executed. The smoothing status of the trace are stored with the measurement data.
DATA ONLY on OFF. stores only the measurement data of the device under test to a disk file. The instrument state and
calibration are not stored. This is faster than storing with the instrument state, and uses less disk space. It is intended
for use in archiving data that will later be used with an external controller, and data cannot be read back by the
analyzer.
DECISION MAKING. presents the sequencing decision making menu under the Seq menu.
DECR LOOP COUNTER. decrements the value of the loop counter by 1.
DEFAULT COLORS. returns all the display color settings back to the factory-set default values that are stored in
non-volatile memory.
DEFAULT PLOT SETUP. resets the plotting parameters to their default values.
DEFAULT PRNT SETUP. resets the printing parameters to their default values.
DEFINE DISK-SAVE. leads to the define save menu. Use this menu to specify the data to be stored on disk in addition to
the instrument state.
DEFINE PLOT. leads to a sequence of three menus. The first defines which elements are to be plotted and the auto feed
state. The second defines which pen number is to be used with each of the elements (these are channel dependent.)
The third defines the line types (these are channel dependent), plot scale, and plot speed.
DEFINE PRINT. leads to the define print menu. This menu defines the printer mode (monochrome or color) and the
auto-feed state.
DEFINE STANDARD. makes the standard number the active function, and brings up the define standard menus. The
standard number (1 to 8) is an arbitrary reference number used to reference standards while specifying a class.
DELAY. selects the group delay format, with marker values given in seconds.
DELAY/THRU. defines the standard type as a transmission line of specified length, for calibrating transmission
measurements.
DELETE. deletes the segment or the frequency band indicated by the > pointer.
DELETE ALL FILES. deletes all files.
DELETE FILE. deletes a selected file.