User's Manual

Chapter 1 161
GPIB Command Dictionary
CONFigure subsystem
:REFerence:INPut:EXTernal <string>
:REFerence:INPut:EXTernal?
These commands set/query the external reference frequency. The
external reference is selected using the :REFerence:INPut:SELect
command.
Syntax
CONF:REF:INP:EXT ‘1 MHz’
‘2 MHz’
‘5 MHz’
‘10 MHz’
‘15 MHz’
‘1X Chip’
‘2X Chip’
‘4X Chip’
‘8X Chip’
‘16X Chip’
CONF:REF:INP:EXT?
Screen/field equivalent
CONF:REF:INP:EXT controls the Ext Ref In field of the
INSTRUMENT CONFIGURE screen.