27
Subject to change without notice
C o n t r o l s a n d R e a d o u t
4
CURSOR MEASURE
(pushbutton)
On condition the cursors have been switched off, pressing the
CURSOR MEASURE pushbutton switches the cursors and the
cursor measurement results on. If the cursors and the measu-
rement results are displayed, pressing the CURSOR MEASURE
pushbutton again then causes the display of the “Cursors” menu
and its selection box. Additionally the FOCUS TRACE MENU
pushbutton
3
lights, indicating that the INTENS knob
2
has a
function allocated to the selected item of the “Cursors” menu.
STOP
Note:
CURSOR MEASURE can not be called when FFT
mode is present.
Depending on the mode (Yt or XY, analog or digital mode) dif-
ferent cursor measure functions can be chosen is this menu,
regarding the cursor lines and their direction.
The cursor lines and the measurement result are displayed
after the “Cursors” menu is switched off by pressing the MENU
OFF pushbutton
43
. The results of cursor measurements will be
displayed by the readout in the top right corner of the screen.
(e.g.
Δ
V(CH2):16.6 mV). If a variable control was activated, the
readout will indicate this by replacing the ”:“ by a ”
>
“.
Cursor positioning
The cursor lines and symbols can be moved by POSITION 1
13
and POSITION 2
14
knobs after being activated as cursor
controls. The POSITION knob function can be selected in the
“Pos./Scale” menu which can be called by pressing the CH1/2-
CURSOR-MA/REF-ZOOM pushbutton
15
. In this menu the selec-
tion of ”Cursors“ (long lines) or ”Aux Cursors“ (short lines) or
other symbols will determine which cursor lines/symbols can
be moved by the POSITION 1 and 2 controls.
Menu items
Depending on the operating mode (Analog, Digital, Yt or XY) this
menu will offer various cursor measuring functions which will also
affect the cursor lines and their position. The function key “Off”
switches the cursors off, cause the “CURSORS” menu to be left and
switches the cursor measuring result display in the readout off.
4.1 Meas.(uring) Type
If this function is activated, the INTENS knob
2
can be used
for measurement selection. In most cases the corresponding
unit will be automatically displayed. The measuring modes are
self explaining.
4.2 Unit
In the modes ”Ratio X“ and ”Ratio Y“ the INTENS knob symbol
will be shown in addition to a unit, this may then be used to
change the unit.
4.2.1
In the modes ”Ratio X“, ”Ratio Y“ and “Count” the INTENS knob
symbol will be shown in addition to a unit, this may then be
used to change the unit.
4.2.1.1
” rat ” (ratio), display of ratios
In this mode the ratios of duty cycles or amplitudes may be
determined with the CURSORS. The distance between the long
CURSOR lines is equal to 1.
4.2.1.2
” % ” (percent), display of percentages
The distance between the long CURSOR lines is equal to 100%.
The result will be determined by the distance of the short
auxiliary cursor line to the long reference line (lower respectively
left), if appropriate with a negative sign.
4.2.1.3
” ° ” (degree), measurement of degrees
The distance between the long CURSOR lines is equal to 360
degrees and must be exactly as long as a signal period. The
measurement result will be determined from the distance
between the reference line to the short auxiliary cursor line.
If appropriate with a negative sign. For further information
please consult ”Measurements of phase differences in dual
channel mode (Yt)“ in the section ”First time operation and
pre settings“.
4.2.1.4
”
π
”
One period of a sine wave is equal to 2
π
, hence the distance
between the two long CURSOR lines must be set to one period. If
the distance between the reference line and the short CURSOR
line equals 1.5 periods, ”3
π
“ will be displayed. If the short cursor
line is left of the reference line a negative sign will be shown.
4.2.2
In combination with the measuring mode “Count” the
INTENS knob symbol
is displayed additionally to the unit,
indicating that it can be determined by the user.
4.2.2.1
“positive Puls”
The number of such pulses, that are located between the ver-
tical cursor lines and crossing the horizontal auxiliary cursor
line, are displayed.
4.2.2.2
“negative Puls”
The number of such pulses, that are located between the ver-
tical cursor lines and crossing the horizontal auxiliary cursor
line, are displayed.
4.2.2.3
“rising edge”
The number of rising edges, that are located between the ver-
tical cursor lines and crossing the horizontal auxiliary cursor
line, are displayed.
4.2.2.4
“falling edge”
The number of falling edges, that are located between the ver-
tical cursor lines and crossing the horizontal auxiliary cursor
line, are displayed.
4.3 Respect
It may be necessary to determine for which signal channel the
CURSOR measurement shall be valid. This is indicated by sho-
wing the INTENS knob symbol
next to the channel number.
After selection of the signal source, the CURSOR lines must
then be positioned to the signal or portions of it displayed by
this channel.
4.4 Off
(Cursors Off)
Pressing the function key “Off” switches the “Cursors” menu,
the cursor lines and the cursor measurement results off.
If only the “Cursors” menu displayed shall be switched off, press
the MENU OFF pushbutton
43
.
5
ANALOG/DIGITAL
(pushbutton)
The color in which the pushbutton lights, indicates the operating
mode (analog= green, digital = blue). In case of Yt or XY mode no
settings are affected by switch over. As FFT is only available in
digital mode, it is switched off after switch over to analog mode
and the last used Yt mode is present. If COMPONENT TEST
mode is present (analog mode), switching over to digital mode
automatically switches over to the last used mode (Yt or XY).
Y parameters will not be changed by switching. Time base mo-
des will be changed due to the different operation of the time
bases in both modes. After any switching, time base A will be
