Specifications

EXAMPLE:
The
horizontal
difference is
0.6
division
Substituting the
given
values:
with a sweep rate of 4s"/division
as shown in
Figure
21.
phase
Difference
=
6 divisions
x 4.5./division
=
2zo
Substituting the
given
values:
^,lly
=
0.6
divisions X
4s'ldivision
=
27o
L,lTrerence
HIGH
RESOLUTION
PHASE
DIFFERENCE
More
accurate
phase
measurements
can
be
made
by
using
the X10
MAG
mode
to increase
the sweep
rate
without
changing
the
VAR TIME/DlV control
(see
Figure
22l-.
EXAMPLE: lf
the sweep
rate
were
increased
10 times
with the
magnifier
(X10
MAG),
the
magnified
sweep rate
would
be 45
*
10
=
4.5o/division. Figure
22 shows
the same
signals
used in
Figure
21,
but
the X10
MAG
push
button is
depressed,
resulting in
a
horizontal
difference
of 6
divisions. The
phase
difference is:
phase
horizontal magnified
Difference
=
difference
x
sweep
rate
(divisions)
(degrees/div)
CHANNEL
1
(REFERENCE)
CHANNEL
2
MEASURE
TIME FROM
ATOB
I
l*
HORIZONTAL
DIFFERENCE
I
-
465/DM-O-16
@
54
4658/DM44 Operators
Figure 22.
High resolution
phase
differenc€.