
Trigger Menu
The trigger menu is used to select the type and number of groups for the sweep trigger. The
following is a description of the
located within this menu:
freezes the data trace on the display, and the analyzer stops sweeping and taking data.
The notation
is displayed at the left of the graticule. If the indicator is on at the left
side of the display, trigger a new sweep with
of
to
mode.
triggers a user-specified number of sweeps, and returns to the hold
mode. This function can be used to override the test set hold mode (indicated by the
notation
at the left of the screen). In this mode, the electro-mechanical transfer
switch (Option 007) and attenuator are not protected against unwanted continuous switching.
This occurs in a full two-port calibration, in a measurement of two different parameters
that require power out from both ports, or when the primary channels are uncoupled and a
different power level is set for each channel.
If averaging is on, the number of groups should be at least equal to the averaging factor
selected, to allow measurement of a fully averaged trace. Entering a number of groups resets
the averaging counter to 1.
,
is the standard sweep mode. The sweep is triggered automatically and
continuously and the trace is updated with each sweep.
. . . . . . . . . . .
that is connected to the rear panel EXT TRIGGER input. The sweep is started with a high
to low transition of a
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 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 notations area or on the trace.
External trigger mode is
in every sweep mode.
similar to the trigger on sweep, but triggers on each data point in a
sweep.
. . . .
this
triggers each measurement. The annotation “man” appears at the left side of
the display when the instrument is waiting for the trigger to occur This feature is useful in a
test sequence when an external device or instrument requires changes at each point.
Application and Operation Concepts
Содержание HP 8753E
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