Commands Listed in Alphabetical Order
PHAseref:SOU
rce
This command sets or queries the small-module compartment that is used as the
phase ref s ource when phase-correction is turned on. The compartment must
contain a Pha
se Reference module. If only one such module is installed, the
instrument defaults to the source matching the compartment in which it is installed.
NOTE. The 82A04 Phase Reference Module can only be installed in one of the
four small-module compartments. A large module installed in the large C1C2
compartment disables the small C1C2 compartment; a large module in the
large C3C4 compartment disables the small C3C4 compartment. Under these
conditio
ns, any Phase Reference Module installed in the disabled compartments
cannot be used.
Group
Phase Reference
Syntax
PHAseref:SOUrce {C1C2 | C3C4 | C5C6 | C7C8}
PHAseref:SOUrce?
Related Commands
PHAseref:CH<x>:FREQuency, PHAseref:CHAR, PHAseref:MODe,
PHAseref:CH<x>:RANge?, PHAseref:CH<x>:STAtus?
Arguments
C1C2 selects the ļ¬rst (left-most) small-module compartment as the Phase
Reference Module source. This argument is ineffective if a large module is
installed in the ļ¬rst (left-most) large module compartment (see note above).
C3C4 selects the second small-module compartment as the Phase Reference
Module source. This argument is ineffective if a large module is installed in
the second large module compartment (see the note above).
C5C6 selects the third small-module compartment as the Phase Reference
Module source.
C7C8 selects the fourth (right-most) small-module compartment as the Phase
Reference Module source.
Examples
PHASEREF:SOURCE C5C6 sets the instrument to use the Phase Reference Module
in the small-module compartment for channels 5 and 6 as the source for the phase
correction timebase.
PHASEREF:SOURCE? might return C1C2, indicating that the currently selected
source is the Phase Reference Module that is installed in the small-module
compartment for channels 1 and 2.
2-268 DSA/CSA/TDS8X00/B Series Programmer Manual
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