Agilent Technologies 4395A - Cal

4
Cal
5
Front
Panel
Key
Description
4
Cal
5
Network
Analyzer
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CORRECTION
on
OFF
Turns
error
correction
on
or
o.
The
analyzer
uses
the
most
recent
calibration
data
for
the
displayed
parameter
.
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CALIBRA
TE
MENU
!
See
NA
Cal
menu
Displays
the
menu
that
provides
several
accuracy
enhancement
procedures
ranging
from
a
simple
frequency
response
calibration
to
a
full
two-port
calibration.
At
the
completion
of
a
calibration
procedure
,
correction
is
automatically
turned
on,
and
the
notation
\Cor"
or
\C2"
is
displayed at
the
left
of
the
screen.
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RESUME
CAL
SEQUENCE
Eliminates
the
need
to
restart
a
calibration
sequence
that
was
interrupted
to
access some
other
menu.
Goes
back
to
the
point
where
the
calibration
sequence
was
interrupted.
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CAL
KIT
[7mm]
!
See
NA
Cal
kit
menu
Displays
the
menu
that
selects
one
of
the
default
calibration
kits
available
for
dierent
connector
types
.
This
in
turn
displays
additional
softkeys
used
to
dene
calibration
standards
other
than
those
in
the
default
kits
(see
\Modifying
Calibration
Kits"
in
Appendix
A).
When
a
calibration
kit
has
been
specied,
its
connector
type
is
displayed
in
brackets
in
the
softkey
label.
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PORT
EXTENSIONS
Goes
to
the
reference
plane
menu
that
extends
the
apparent
location
of
the
measurement
reference
plane
or
input.
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EXTENSIONS on
OFF
Toggles
the
reference
plane
extension
mode
.
When
this
function
is
on,
all
extensions
dened
below
are
enabled;
when
o,
none
of
the
extensions
are
enabled.
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EXTENSION INPUT
R
Adds
electrical delay
in seconds
to extend
the
reference
plane
at
input
R
to
the
end
of
the
cable
.
This is
used
for
all
R
input
measurements
(including
S-parameters).
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EXTENSION
INPUT
A
A
dds
electrical
delay
to
the
input
A
reference
plane
for
all
A
input
measurements (including
S-parameters).
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EXTENSION
INPUT
B
A
dds
electrical
delay
to
the
input
B
reference
plane
for
all
B
input
measurements
(including
S-parameters).
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EXTENSION
PORT
1
Extends
the
reference
plane
for
measurements
of
S
11
,
S
21
,
and
S
12
.
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EXTENSION
PORT
2
Extends
the
reference
plane
for
measurements
of
S
22
,
S
12
,
and
S
21
.
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RETURN
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VELOCITY
F
A
CTOR
Enters
the
velocity
factor
used
by
the
analyzer
to
calculate
equivalent
electrical
length.
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SET
Z0
Sets
the
characteristic
impedance
used
by
the
analyzer
in
calculating
measured
impedance
with
Smith
chart
markers
and
conversion
parameters
.
If
the
test
set
used
is
an
85046B
test
set, or
an
87512B
Transmission/Reection
T
est
Kit,
set
Z
0
to
75
.
Characteristic
impedance
must
be
set
correctly
before
calibration
procedures
are
performed.
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ELECTRICAL
DELAY
MENU
Displays
softkeys to
add or
subtract
a
linear
phase
slope
relative
to
frequency
or
a
constant
phase
.
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MKR
!
DELA
Y
Enters
the
group
delay
at the
marker point
of a
xed
frequency
aperture
,
20
%
of
the
span,
to
the
electrical
delay
to
balance
the
phase
of
the
DUT.
This eectively
attens the
phase trace
around
the
marker
and
can
measure electrical
length or
deviation from
linear phase
.
A
dditional
electrical
delay adjustment
is required
for DUT
s without
constant group
delay
over
the
measured
frequency
span.
Because
this feature
adds phase
to a
variation in
phase versus
frequency,
it is
applicable
only
for
ratioed
input
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ELECTRICAL DELA
Y
Adjusts the electrical delay to balance the phase shift of the DUT
.
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PHASE OFFSET Adds or subtracts a phase oset that is constant with frequency (rather than linear). This is
independent of
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MARKER ! DELAYand
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ELECTRICAL DELA
Y
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RETURN
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RETURN
B-16 Softkey Reference