Agilent Technologies 4395A - Page 233

Compensating
for
the
Electrical Delay
Caused by
an Extension
Cable
Compensating
for
the
Electrical
Delay
Caused
by
an
Extension
Cable
If
the Electrical
Delay of
the Extension
Cable
is
Known
1.
Press 4
Cal
5
N
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MORE
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N
PORT EXTENSIONS
to open
the port
extension
menu.
2.
Enter
the
electrical
delay
values
for
the
respective
input
ports
.
If
you
do
not
use
the
S-parameter
test
set,
follow
these
steps:
Press
N
N
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N
EXTENSION
INPUT R
. Then
enter
the
electrical
delay
of
the
cable
that
is
connected
to
the
R
input.
Press
N
N
N
N
N
N
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N
EXTENSION
INPUT
A
.
Then enter
the electrical
delay of
the A
input.
Press
NN
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N
EXTENSION INPUT
B .
Then
enter
the
electrical
delay
of
the
B
input.
If you
use the
transmission/reection (T/R)
test
set,
enter
the
electrical
delay
of
the
cable
that is
connected to
the
TEST
PORT
(for
the
R
and
A
inputs).
Figure 8-16. P
ort Extension With the T/R T
est Set
If you use the S-parameter test set, follow these steps:
Enter \0" for
NNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNN
EXTENSION INPUT R
,
NNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNN
EXTENSION INPUT A
and
NNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNN
EXTENSION INPUT B
to
clear the port extension of the R, A and B inputs
.
Press
NNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNN
EXTENSION PORT 1
. Then enter the electrical delay of the PORT 1.
Press
NNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN
EXTENSION PORT 2 . Then enter the electrical delay of the PORT 2.
3.
Toggle
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
EXTENSION on OFF to
NNNNNNNNNNNNNNNNNNNN
ON off to enable the port extension.
Analyzing the Measurement Results 8-31