HP 8719ET Reference Manual page 159

Hardkey/Softkey Reference
Analyzer Functions
MANUAL TRG ON POINT
Marker
→
MARKER AMP. OFS.
→
MARKER CENTER
→
MARKER CW
→
MARKER DELAY
5-32
waits for a manual trigger for each point. Subsequent
pressing of this softkey triggers each measurement. The
annotation "man" will appear 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.
displays an active marker on the screen and provides
access to a series of menus to control from one to five
display markers for each channel. Markers provide
numerical readout of measured values at any point of the
trace.
The menus accessed from the
basic marker operations. These include special marker
modes for different display formats, and a marker delta
mode that displays marker values relative to a specified
value or another marker.
uses the active marker to set the amplitude offset for the
limit lines. Move the marker to the desired middle value of
the limits and press this softkey. The limits are then
moved so that they are centered an equal amount above
and below the marker at that stimulus value.
changes the stimulus center value to the stimulus value of
the active marker, and centers the new span about that
value.
sets the CW frequency of the analyzer to the frequency of
the active marker. This feature is useful in automated
compression measurements. Test sequences allow the
instrument to automatically find a maximum or minimum
point on a response trace. The
command sets the instrument to the CW frequency of the
active marker. When power sweep in engaged, the CW
frequency will already be selected.
adjusts the electrical delay to balance the phase of the
DUT. This is performed automatically, regardless of the
format and the measurement being made. Enough line
length is added to or subtracted from the receiver input to
compensate for the phase slope at the active marker
position. This effectively flattens the phase trace around
the active marker, and can be used to measure electrical
length or deviation from linear phase. Additional electrical
delay adjustments are required on DUTs without constant
group delay over the measured frequency span. Since this
feature adds phase to a variation in phase versus
frequency, it is applicable only for ratioed inputs.
key provide several
Marker
→
MARKER CW