HP 54501A Programming Reference Manual page 160

TNULI
TNULI
command/query
The
:CALIBRATE:TNULL
command
sends
the
time null
(channel-to-channel skew)
values
into the
HP
54501A. The time
null
values should have been obtained from the instrument during
a
previous
setup.
The
TNULL
query
tells the
instrument to output the tune null
values to
the controller.
Command
Syntax:
:CAUbrate:TNUU
<null_value1>,<null_value2>,<null_value3>
Where:
< null_value1 > :
=
channel
1
to channel
2
skew
< null_value2 > :
=
channel
1
to channel
3
skew
<null_value3>
:
=
channel 1 to
channel
4
skew
Example: OUTPUT 707;":CAL:TNUL
<null_value1 >,<null_value2>,<null_value3>
Query Syntax:
:CAUbrate:TNUU?
Returned Format:
[:CAUbrate:TNUU]
<null_value1 >,<null_value2>,<null_value3>
<NL>
Where:
<null_value1
>
::
=
channel
1
to channel
2
skew (exponential
-
NR3 format)
<null value2>
::
=
channel
1
to
channel
3
skew
(exponential
•
NR3 format)
<null_value3> ::
=
channel
1
to channel
4
skew (exponential
-
NR3 format)
Example: DIM Nii$[50]
OUTPUT 707;":CAL!BRATE:TNULL?"
ENTER
707; Nll$
PRINT Nll$
Calibrate Subsystem
9-2
HP 54501A
Programming