HP 8510 User Manual

3. Press 4
S
12
54
DISPLAY
5
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
DATA ! MEMORY to store the S
12
trace in trace memory 2. This
trace is the frequency resp onse dierence of the S
12
signal path between calibration and
measurement.
Now that these traces are stored, they can b e used to normalize the corrected data.
View the Normalized Parameters
Use these traces to normalize the corrected data to the new levels after the attenuation is
changed. This example uses normalization only for S
21
and S
12
. Press the following keys to
view the corrected parameters.
1.
Press 4
DISPLAY
5
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
DISPLAY: DATA .
2.
Press 4
S
11
5 and view the S
11
measurement.
3. Press 4
S
22
5 and view the S
22
measurement.
4. Press 4
S
21
5 and view the S
21
measurement. If the thru is connected, the transmission
co ecient should b e 1
6
0

.
5.
Press
4
S
12
5
and
view
the
S
12
measuremen
t.
View
the
S
12
measuremen
t.
If
the
thru
is
connected,
the
transmission
co
ecien
t
should
b
e
1
6
0

.
Normalization
is
turned
o
for
the
S
11
and
S
22
measuremen
ts,
then
the
appropriate
memory
is
selected
and
normalization
is
turned
on
to
view
S
21
and
S
12
.
Since
these
are
accurate,
rep
eatable
atten
uators,
this
sequence
may
b
e
eectiv
e
in
y
our
application.
If
it
is necessary
to
c
hange
other
parts
of
the
test
setup,
esp
ecially
comp
onen
ts
connected
to
the
test
ports
or
connected
b
et
w
een
the
rear
panel
links,
this
pro
cedure
ma
y
require
additional
steps
to
adequately
comp
ensate
for
the
c
hanges.
Selecting the Appropriate Measurement Calibration
The HP 8510 pulsed-RF network analyzer system allows you to calibrate in the same
environmentas your measurement. For example, if you are making a high p ower, pulsed-RF
measurement, you can calibrate in the same high p ower, pulsed-RF mo de. Calibration data is
tak
en
only
while
the
pulse is
on.
This
t
yp
e
of
calibration
ma
y
prev
en
t damage
to
calibration
standards
that
w
ould
b
e
damaged
in
high
p
o
wer,
CW
calibrations.
Signal lev
els available for calibration and for measuremen
tma
y also inuence the decision of
which error mo del to use for the measuremen
t.
If appropriate signal lev
els can be ac
hieved for all parameters during calibration
and
measurement, the HP
8510 2-Port accuracy enhancemen
t error mo del, either the HP 8510 F
ull
2-Port or TRL 2-P
ort, pro
vides b est accuracy b
ypro
viding b est c
haracterization and remo
val
of the systematic errors in the test setup. If the device is noninsertable, the HP 8510 Adapter
Removal calibration pro cedure can b e implemented using the Full 2-Port and/or the TRL
2-P
ort
calibration.
High
P
o
w
er
Measurements
10-7

HP 8510 Specifications

General

Brand	HP
Model	8510
Category	Measuring Instruments
Language	English