Technical data

4-10
Hardkey and Softkey Reference
on.
DRIVEPORT LW / RF. allows you to manually set the RF drive port. If COUPLED SW is set to ON, the driveport will
automatically change back to the setup-defined setting at the end of the sweep. It is not recommended to change this
setting.
DUAL CH on OFF. toggles between the display of both measurement channels or the active channel only. This is used in
conjunction with SPLIT DISP 1X 2X 4X in the display DUAL|QUAD SETUP menu to display multiple channels. With
SPLIT DISP 1X the two traces are overlaid on a single graticule.
DUAL|QUAD SETUP. activates a sub-menu of Display, which allows you to enable the auxiliary channels and configure
multiple-channel displays.
DUPLICATE SEQUENCE. duplicates a sequence currently in memory into a different softkey position. Duplicating a
sequence is straightforward. Follow the prompts on the analyzer screen. This command does not affect the original
sequence.
EACH SWEEP. Power meter calibration occurs on each sweep. Each measurement point is measured by the power
meter, which provides the analyzer with the actual power reading. The analyzer corrects the power level at that point.
The number of measurement/correction iterations performed on each point is determined by the NUMBER OF
READINGS softkey. This measurement mode sweeps slowly, especially when the measured power is low. Low power
levels require more time for the power meter to settle. The power meter correction table in memory is updated after
each sweep. This table can be read or changed via GPIB.
EDIT LIMIT LINE. displays a table of limit segments on the LCD, superimposed on the trace. The edit limits menu is
presented so that limits can be defined or changed. It is not necessary for limit lines or limit testing to be on while limits
are defined.
EDIT LIST. presents the edit list menu. This is used in conjunction with the edit subsweep menu to define or modify the
frequency sweep list. The list frequency sweep mode is selected with the LIST FREQ softkey described below.
EDIT RIPL LIMIT. selects the menu used to edit the ripple limits. The edit ripple limits menu allows you to add, change,
or delete ripple limits for the ripple test.
ELECTRICAL DELAY. adjusts the electrical delay to balance the phase of the DUT. It simulates a variable length loss-less
transmission line, which can be added to or removed from a receiver input to compensate for interconnecting cables,
etc. This function is similar to the mechanical or analog “line stretchers” of other analyzers. Delay is annotated in units
of time with secondary labeling in distance for the current velocity factor.
ELECTRICAL PARAMETERS. presents a menu that allows you to select an electrical measurement: S11, S21, S12, S22, or
direct sampler inputs.
EMIT BEEP. causes the instrument to beep once.
END OF LABEL. terminates the HPGL "LB" command.
END SWEEP HIGH PULSE. sets the TTL output on TEST SEQ BNC or the test set interconnect to normally high with a
10 microseconds pulse high at the end of each sweep.
END SWEEP LOW PULSE. sets the TTL output on TEST SEQ BNC or the test set interconnect to normally low with a 10
µs pulse low at the end of each sweep.
ENHANCED RESPONSE. provides access to the series of menus used to perform an enhanced response calibration.
ENH. REFL. on OFF. selects the enhanced reflection calibration. This calibration improves the response of an enhanced
response calibration. Use enhanced reflection only on a bilateral device. A bilateral device has similar forward and
reverse transmission characteristics. Examples of bilateral devices are passive devices (filters, attenuators, and
switches). Most active devices (amplifiers) and some passive devices (isolators and circulators) are not bilateral. If this
calibration is used for a non-bilateral device, errors may occur in the resulting measurement.
ENTRY Off. turns the active entry off. This also removes error and warning messages.
EO CAL Parameter. shows the internal path used during E/O mode calibration.
ERASE TITLE. deletes the entire title.
EXT TRIG ON POINT. is similar to the trigger on sweep, but triggers each data point in a sweep.
EXT TRIG ON SWEEP. is used when the sweep is triggered on an externally generated signal connected to the rear panel
EXT TRIGGER input. The sweep is started with a high to low transition of a TTL signal. If this key is pressed when no
external trigger signal is connected, the notation “Ext” is displayed at the left side of the display to indicate that the