Agilent Technologies 4395A - Page 404

Channel
Coupling
Channel Coupling
When
the
4395A
is
operating in
network analyzer
mode,
you can
couple the
two channels
so
that
the
sweep
parameters are
linked across
the two
channels.
But, when
one channel
measures
a
ratio
measurement
and the
other one
measures an
absolute measurement
(for
example
A/R
and
B),
sweep parameters
can not
be linked.
In
channel
coupling
mode
,the
following parameters
are linked:
Frequency
Number
of
points
Source
power
level
Number
of
groups
IF bandwidth
Sweep
time
Trigger
type
Sweep
type
In
addition,
if
both
channels have
the same
input
parameter
(such
as
S
11
or
A/R),
the
following
parameters
are
linked:
Calibration
type
Calibration
coecient
The
following
parameters
always
have
the
same
value
between
the
two
channels
,
whether
or
not
the
channels
are
coupled:
Trigger
source
List
sweep
table
Calibration
kit
type
and
data
The
following
parameters
are always
set
for
each
channel
independently
,
whether
or
not
the
channels
are
coupled:
Measurement
parameter
Display
F
ormat
Title
Traces displayed
Scale value
Electrical delay
Phase oset
Averaging
(on/o, factor)
Linking
of
sweep
parameter
values
for
the
two
channels
is
independent
of the
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
DUAL CHAN on OFF
softkey under the
4
Display
5 key and of the
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
NN
MKR [UNCOUPLED]
/
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
[COUPLED]
softkey under the
4
Marker
5 key.
NNNN
NNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNN
COUPLED CH OFF
becomes an alternate sweep function when
dual channel display is
on. In this mode
, the 4395A alternates between the two sets of sweep
parameter values for measurement of
data and both are displayed.
A-28 Basic Measurement Theory