HP 8753D - Page 247

Modify
the
Cal
Kit
Thru
Denition
With
this
method
it
is
only
necessary
to
use
adapter
B.
The calibration
kit thru
denition is
modied
to
compensate
for
the
adapter
and
then
saved as
a user
kit. However
,the
electrical
delay
of
the
adapter
must
rst
be
found.
1.
P
erform
a
1-port
calibration
on
PORT
2.
2.
Connect
adapter
B
to
the
test
port.
3.
A
dd
a
short
to
the
open
end of
the B
adapter.
4.
Measure
the
delay
of
the
adapter
by
pressing
4
F
ORMA
T
5
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
DELAY
.
5.
Divide the
resulting delay
measurement by
2.
6.
Determine the
oset delay
of the
calibration short
by
examining
the
dene
standard
menu
(see
\Dene Standard
Menus").
7.
Subtract the
short oset
delay
from
the
value
calculated
in
step
5.
This
corresponds
to
the
delay
of adapter
B
.
8.
Modify
the
calibration
kit
thru denition
by
entering
in
the
electrical
delay
of
adapter
B
.
Save
this
as
a
user
kit.
9.
P
erform
the
desired
calibration
with this
new user
kit.
10.
Measure
the
test
device
.
5-40 Optimizing Measurement Results