HP 8753D - Page 202

ASCII
Data
F
ormats
CITIle
CITIle
(Common Instrumentation
Transfer
and
Interchange
le)
is
an
ASCII
data
format
that
is useful
when
exchanging
data
between
dierent
computers
and
instruments
.
F
or
more
information
on
the
CITIle
data
format
as
well
as
a
list
of
CITIle
keywords
,
refer
to
Appendix
A,
\The
CITIle
Data
F
ormat
and
Keyword
Reference
."
S2P
Data
F
ormat
Component
data
les
contain
small
signal
S-parameters
described
by
frequency
dependent
linear
network
parameters
for
2
port
components
.
These
les
are
assigned
a
lename
with
the
sux
S1
or
S2
depending
on
which
measurement
channel
generated
the
data.
These
les
are
output
only
.
(They
cannot
be
read
in
by
the
analyzer
.)
An
S2P
le
is
output
only
when
the
user
has
either
a
full 2-port
or TRL
2-port error
correction
turned
on,
and
has
selected
it
under
4
SA
VE/RECALL
5
:
N
N
N
N
N
N
N
N
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
DEFINE
DISK-SAVE
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
DATA
ARRAY
ON
or
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
DATA
ONLY
ON
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
SAVE
USING
ASCII
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
SAVE
STATE
The
template
for
component
data
les
is
as
follows:
!
comment
line
#
<frequency
units>
<parameter>
<format>
<Rn>
<data
line>
...
<data
line>
where
!
indicates
that
all
following
on
this line
is a
comment
# indicates
that entries
following
on
this
line
are
parameters
that
are
being
specied
frequency
units
GHz, MHz,
kHz, Hz
parameter S
for S-parameters
format DB for dB magnitude and angle in degrees
MA for linear magnitude and angle in degrees
RI for
real and imaginary pair
Rn the reference
impedance in ohms for the analyzer making the measurement
(R 50 or R
75)
The \format" above is selected
by the current selection under the FORMA
T menu. T
o select the
DB format, the FORMAT must be LOG MAG. For MA, the FORMAT must be LIN MAG, and all
other FORMAT selections will output RI data. The S2P data will always represent the format
array data, including eects of electrical delay and port extensions. A CITI le will be saved at
the same time.To be consistent with previous versions, the CITI le data saved will represent
the DATA array (corrected data) without eects of electrical delay or port extensions.
Printing, Plotting, and Saving Measurement Results 4-39