User`s guide

ANALOG+
ON OFF
Fbr the HP 8591E, HP 8593E, HP 8594E, HP 8595E, or HP 8596E only.
Requires Q&ion 101 or 301.
turns on the analog+ display mode. This is a digital implementation of an
analog display, combining the advantages of both types of displays. The display
is made up of 401 horizontal points or trace elements. In the analog+ display
mode each trace element can display from 1 to 40 dots, or measurements.
Pressing ANALOG+ ON OFF makes dot density the active function. The dot
density function sets the desired number of measurements per trace element.
Each dot requires an additional analog-to-digital conversion for each trace
element, so the sweep time can limit the actual number of dots available.
Lengthening the sweep time can increase the actual dot density.
Markers and marker functions as well as the screen text and title capabilities
of a digital display are available along with the analog type trace information.
Some functions are not available with analog+ display mode. See Table 7-l for
a list of functions that are not available with analog+ displays. If a trace is
blanked while using an analog+ display, the data is permanently blanked and
cannot be recalled, even if you use the view function.
The copy function can be used to provide a printout of the display. It must be
configured to use a printer and not a plotter. After using other functions, press
ANALOG+ ON OFF to return to the dot density function.
Limit lines can be used to test data in an analog+ display, but they cannot be
displayed.
Front-Panel Key Access: (display)
‘able 7-l. Commands Not Available with Analog + Operation
Command
Description
A <--> B
exchanges trace A and trace B
A-B -+ A ON OFF
puts the difference between trace A and trace B into trace A
B-DL +B
puts the difference between trace B and the display line in trace B
CLEAR WRITE B
initially erases trace B and then displays it continuously
CLEAR WRITE C
initially erases trace C and then displays it continuously
DEMOD ON OFF
turns AM or FM demodulation on and off
FFT
changes zero span data to the frequency domain using an FFT
MKR CNT ON OFF
turns the marker counter on and off
MK PAUSE ON OFF
stops the analyzer sweep at the marker for the defined of the dwell time
MAX HOLD A
updates trace A with the maximum level at each point, each sweep
MAX HOLD B
updates trace B with the maximum level at each point, each sweep
MIN HOLD C
updates trace C with the minimum level at each point, each sweep
NORMLIZE ON OFF the difference between A and B is added tothe display line and put into trace P
?lK TRACK ON OFF moves the signal closest to the marker to center screen and keeps it centered
SPAN ZOOM
finds the highest signal peak, turns on marker track, and activates span
THRESHLD ON OFF sets a lower boundary to the active trace
TRACKING PEAK
starts a routine which adjusts tracking to peak the tracking generator signal
YID AVG ON OFF
starts a routine which digitally averages display signals and noise
VIEW A
holds and displays the trace A data when used after blanking trace A
VIEW B
holds and displays the trace B data
VIEW C
holds and displays the trace C data
Key Descriptions 7-9