Technical data

4-30
Hardkey and Softkey Reference
SWEEP TYPE MENU. presents the sweep type menu, where one of the available types of stimulus sweep can be
selected.
SWR. reformats a reflection measurement into its equivalent SWR (standing wave ratio) value. SWR is equivalent to
(1+ρ)/(1−ρ), where ρ is the magnitude of the reflection coefficient. Note that the results are valid only for reflection
measurements. If the SWR format is used for measurements of S
21
or S
12
, the results are not valid.
System. presents the system menu. It allows to set the instrument mode and to access the configure, limit and service
menus.
SYSTEM CONTROLLER. is the mode used when peripheral devices are to be used and there is no external controller. In
this mode, the analyzer can directly control peripherals (plotter, printer, disk drive, or power meter). System controller
mode must be set in order for the analyzer to access peripherals from the front panel to plot, print, store on disk, or
perform power meter functions, if there is no other controller on the bus. The system controller mode can be used
without knowledge of GPIB programming. However, the GPIB address must be entered for each peripheral device. This
mode can only be selected manually from the analyzer's front panel, and can be used only if no active computer
controller is connected to the system through GPIB. If you try to set system controller mode when another controller is
present, the message ANOTHER SYSTEM CONTROLLER ON GPIB is displayed. Do not attempt to use this mode for
programming.
TAKE CAL SWEEP. Each data point is measured during the initial sweep and the correction data is placed in the power
meter correction table. This provides data usable in the ONE SWEEP mode.
TAKE RCVR CAL SWEEP. executes a receiver calibration.
TALKER/LISTENER. is the mode normally used for remote programming of the analyzer. In this mode, the analyzer and
all peripheral devices are controlled from the external controller. The controller can command the analyzer to talk, and
the plotter or other device to listen. The analyzer and peripheral devices cannot talk directly to each other unless the
computer sets up a data path between them. This mode allows the analyzer to be either a talker or a listener, as
required by the controlling computer for the particular operation in progress. A talker is a device capable of sending
out data when it is addressed to talk. There can be only one talker at any given time. The analyzer is a talker when it
sends information over the bus. A listener is a device capable of receiving data when it is addressed to listen. There can
be any number of listeners at any given time. The analyzer is a listener when it is controlled over the bus by a computer.
TARGET. makes target value the active function, and places the active marker at a specified target point on the trace.
The default target value is −3 dB. The target menu is presented, providing search right and search left options to
resolve multiple solutions. For relative measurements, a search reference must be defined with a delta marker or a
fixed marker before the search is activated.
TARGET VALUE. sets the value for target searches, without activating a search.
TERMINAL IMPEDANCE. is used to specify the (arbitrary) impedance of the standard, in Ωs.
TEST OPTIONS. is used to set configurations before running the service tests.
TESTPORT 1 2. is used to direct the RF power to port 1 or port 2. (For non-S parameter inputs only.)
TESTSET I/O FWD. is used to support specialized test sets, such as a test set that measures duplexers. It allows you to
set three bits (D1, D2, and D3) to a value of 0 to 7, and outputs it as binary from the rear panel test set connector. It
tracks the coupling flag, so if coupling is on, and FWD channel 1 is the active channel, FWD channel 2 will be set to the
same value.
TESTSET I/O REV. is used to support specialized test sets, such as a test set that measures duplexers. It allows you to set
three bits (D1, D2, and D3) to a value of 0 to 7, and outputs it as binary from the rear panel test set connector. It tracks
the coupling flag, so if coupling is on, and REV channel 1 is the active channel, REV channel 2 will be set to the same
value.
TESTSET SW CONTINUOUS. toggles the internal solid state switch from a hold mode, to a continuously switching mode,
or to a number of sweeps mode when full 2-port correction is enabled. Use for fast 2-port calibration.
TESTS. presents the service test menu.
TEXT. selects all the non-data display text for color modification. For example: operating parameters.
TEXT [ ]. brings up the print color definition menu. The default color for text is black.
TEXT FMT [ ]. sets the format of the text file when FILETYPE: TEXT is selected. The only text selection currently
available is the comma separated values (CSV) format.
THRU. starts the measurement of a calibration standard used for transmission measurements. This standard directly