HP 8753D - Page 256

Decreasing
the Time
Delay
The
other way
to
reduce
1F
is
by
decreasing
the
time
delay
,
1T
. Since
1T is
a property
of
the
device that
is
being
measured,
it
cannot
literally
be
decreased.
However
,
what
can be
decreased
is the
dierence
in
delay
times
between
the
paths
to
the
R
channel
and
the
B
channel.
These times
can
be
equalized
by
adding
a
length
of
cable
to
the
R
channel
which has
approximately
the same
delay as
the
device
under
test.
This
length
of
cable
can
be
inserted
between
the
R
CHANNEL
IN
and
OUT
connectors on
the
front
panel
of
the
analyzer
.
The
delay
of
this
cable
must
be
less
than
5
 s
.
Optimizing Measurement Results 5-49