Technical data

4-11
Hardkey and Softkey Reference
analyzer is waiting for a trigger. When a trigger signal is connected, the “Ext” notation is replaced by the sweep speed
indicator either in the status notation area or on the trace. External trigger mode is allowed in every sweep mode.
EXTENSION INPUT A. Use this feature to add electrical delay (in seconds) to extend the reference plane at input A to
the end of the cable. This is used for any input measurements including S-parameters.
EXTENSION INPUT B. adds electrical delay to the input B reference plane for any B input measurements including
S-parameters.
EXTENSION PORT 1. extends the reference plane for measurements of S
11
, S
21
, and S
12
.
EXTENSION PORT 2. extends the reference plane for measurements of S
22
, S
12
, and S
21
.
EXTENSIONS on OFF. toggles the reference plane extension mode. When this function is on, all extensions defined
above are enabled; when off, none of the extensions are enabled.
EXTENSION OPTICAL OUTPUT. extends the reference plane for measurements of O/O and E/O devices.
EXTERNAL DISK. selects an (optional) external disk drive for SAVE/RECALL.
EXTERNAL TESTS. leads to a series of service tests.
FILETITLE FILE0. appears during sequence modification, when external disk is selected. FILE0 is the default name. A
new name can be entered when you save the state to disk.
FILETYPE: GRAPHIC. saves the display to the disk drive as a graphic file when SAVE FILE is pressed. The format of the
graphic file is determined by the GRAPH FMT [ ] selection.
FILETYPE: TEXT. saves the display to the disk drive as a text file whenSAVE FILE is pressed. The form of the text file is
determined by the TEXT FMT [ ] selection.
FILE NAME FILE0. supplies a name for the saved state and or data file. Brings up the TITLE FILE MENU.
FILE UTILITIES. provides access to the file utilities menu.
FIXED. defines the load in a calibration kit as a fixed (not sliding) load.
FIXED MKR AUX VALUE. is used only with a polar or Smith format. It changes the auxiliary response value of the fixed
marker. This is the second part of a complex data pair, and applies to a magnitude/phase marker, a real/imaginary
marker, an R+jX marker, or a G+jB marker. Fixed marker auxiliary response values are always uncoupled in the two
channels. To read absolute active marker auxiliary values following a MKR ZERO operation, the auxiliary value can be
reset to zero.
FIXED MKR POSITION. leads to the fixed marker menu, where the stimulus and response values for a fixed reference
marker can be set arbitrarily.
FIXED MKR STIMULUS. changes the stimulus value of the fixed marker. Fixed marker stimulus values can be different
for the two channels if the channel markers are uncoupled using the marker mode menu. To read absolute active
marker stimulus values following a MKR ZERO operation, the stimulus value can be reset to zero.
FIXED MKR VALUE. changes the response value of the fixed marker. In a Cartesian format this is the y-axis value. In a
polar or Smith chart format with a magnitude/phase marker, a real/imaginary marker, an R+jX marker, or a G+jB
marker, this applies to the first part of the complex data pair. Fixed marker response values are always uncoupled in
the two channels. To read absolute active marker response values following a MKR ZERO operation, the response
value can be reset to zero.
FLAT LINE. defines a flat limit line segment whose value is constant with frequency or other stimulus value. This line is
continuous to the next stimulus value, but is not joined to a segment with a different limit value. If a flat line segment is
the final segment it terminates at the stop stimulus. A flat line segment is indicated as FL on the table of limits.
FORM FEED. puts a form feed command into the display title.
Format. presents a menu used to select the display format for the data. Various rectangular and polar formats are
available for display of magnitude, phase, impedance, group delay, real data, and SWR.
FORMAT ARY on OFF. specifies whether or not to store the formatted data on disk with the instrument state.
FORMAT DISK. brings up a menu for formatting a LIF or DOS disk.
FORMAT: DOS. causes subsequent disk initialization to use the DOS disk format.
FORMAT: LIF. causes subsequent disk initialization to use the LIF disk format. FORMAT: DOS is the default setting.
FORMAT EXT DISK. initializes media in external drive, and formats the disk using the selected (DOS or LIF) format.