Operation
Measurements with Cursors
The
controls
in
the gray box
(tN,
~t,
TRACK/INDEP,
~
REF
OR
DLY
POS,
and
~.)
operate cursors
and
sweep delays. With the cursors, you
can
measure voltage,
time,
frequency, ratios,
and
phase.
We
often refer to the
~
REF
OR
DL
Y
POS
control
as
"~
REF"
for convenience.
Cursors
are
more accurate
and
easier to
use
than the graticule. They eliminate the
inconvenience
and
errors of counting
and
interpolating graticule markings
and
they
avoid
CRT
linearity errors.
For best
~
V accuracy, display the signal
on
either
CH
1 or
CH
2 with VOL TS/DIV
set for three to eight divisions of waveform amplitude. For best
~t
and
1/~t
accuracy,
use
the fastest sweep that will include the interval of interest.
Measure Voltage
1.
Turn
on
the
~
V cursors
and
readout with the
~
V button.
2.
Align
the
cursors with
pOints
of interest,
such
as
waveform peaks, using
the
~
REF
and
~
knobs.
3.
The
readout shows the voltage between the
pOints
marked
by
the
cursors.
4.
Press
~V
to turn off the
~V
cursors
and
readout.
Measure
Time,
with
A-Sweep or B-Sweep Alone (SEC/DIV in)
1.
Turn
on
the M cursors
and
readout with the
~t
button.
2.
Align the cursors with points of interest,
such
as
waveform zero-
crossings, using the
~
REF
and
~
knobs.
3.
The
readout shows the time between the points marked
by
the cursors.
4.
Press
~t
to turn off the
~t
cursors
and
readout.
2-10 2465A/2455A/2445A Operators
To Next Page
Loading...
Need help?
General
