Basic Applications-2230 Operators
Magnified Sweep Display
1 . Preset the instrument controls and obtain a baseline
display.
2.
Adjust the Horizontal POSITION control to move the
area to be magnified to within the center crt graticule divi-
sion (0.5 division on each side
of
the center vertical grati-
cule line). Change the SEC/DIV switch setting as required.
3.
Pull
out
the SEC/DIV Variable knob and adjust the
Horizontal POSITION control for precise positioning
of
the
magnified display.
4.
To calculate the magnified sweep rate, divide the
SEC/DIV switch setting by 10.
B Delayed Sweep Display
1 . Preset the instrument controls and obtain a baseline
display.
2.
Set the HORIZONTAL MODE switch to BOTH arid
the B TRIGGER LEVEL control to
BRUNS
AFTER DLY.
3. Pull out the B SEC/DIV knob to unlock it from the A
SEC/DIV knob and turn it clockwise from the counter-
clockwise stop until the intensified zone
is
the desired
length. Adjust the A INTENSITY and B INTENSITY con-
trols
as
required to make the intensified zone distinguish-
able from the remainder of the display.
4.
Adjust the B DELAY TIME POSITION control to
move the intensified zone to cover the portion of the A
trace that is to
be
displayed on the B trace.
5.
Set the HORIZONTAL MODE switch to
B.
The
intensified zone adjusted
in
steps 3 and 4
is
now displayed
as the B trace at the sweep rate indicated
by
the B
SEC/DIV switch.
6.
A more stable display with less jitter may
be
obtained
by
adjusting the B TRIGGER LEVEL control for a
triggered B Sweep.
6-2
NOTE
The
B DELAY TIME POSITION control will
not
pro-
vide continuously variable delay when the B
TRIGGER LEVEL control is set to a position other
than B RUNS AFTER
DL
Y.
Also, differential time
measurements are invalid when the B TRIGGER
LEVEL control is
not
set to B RUNS AFTER
DL
Y.
Alternate Horizontal Sweep Display
1.
Preset the instrument controls and obtain a baseline
display.
2.
Set the HORIZONTAL MODE switch to BOTH and
the B TRIGGER LEVEL control to
BRUNS
AFTER DLY.
NOTE
Two traces will be visible; the A trace with
an
intensified zone, and the B delayed trace without the
intensified zone.
3.
Adjust the Channel 1 POSITION control and the A/B
SWP SEP control as required to display the A trace above
the B trace.
4.
Pull out the B SEC/DIV knob to unlock it from the A
SEC/DIV knob and turn it clockwise to the desired B - -
Sweep rate.
5.
Adjust the A and the B INTENSITY controls as
required to make the intensified zone distinguishable on
the A trace and to set the B trace intensity to the desired
brightness.
6.
Adjust the B DELAY TIME POSITION control to
move the intensified zone to cover the portion of the A
trace that
is
to
be
displayed on the B trace.
X-Y Display
1.
Preset the instrument controls and obtain a baseline
display.
2.
Rotate the A INTENSITY control fully counterclock-
wise and disconnect the
CH
1 input signal.
3.
Use two coaxial cables or probes of equal delay and
apply the vertical signal (Y-axis) to the
CH
2
OR
Y input
connector and horizontal signal (X-axis) to the
CH
1
OR
X
input connector.
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