Agilent Technologies N1996A-503 User Reference page 274

Utility and Control/Sweep Functions
Utility Functions
Mode
Remote Command
Example
Notes
Preset
State Saved
Key Path
Mode
Remote Command
Example
Notes
Remote Command Notes
Preset
State Saved
Min
274
All
[:SENSe]:ROSCillator:SOURce INTernal|EXTernal
[:SENSe]:ROSCillator:SOURce?
ROSC:SOUR EXT selects the external reference.
The only Frequency value available for the Internal
Reference is 10 MHz. For the External Reference, the
possible Frequency values are 0.5 Hz | 1 MHz | 2.1048 MHz
| 4.95 MHz | 10 MHz | 13 MHz | 15 MHz | 19.6608 MHz.
See details in next table.
INTernal
Not Saved in Instrument State. Neither the external
reference frequency nor the state of this function (Int or Ext)
are affected by factory preset or power cycle.
System, Freq/Time Ref
All
[:SENSe]:ROSCillator:EXTernal:FREQuency 0.5HZ |
1MHZ | 2.1048MHZ | 4.95MHZ | 10MHZ | 13MHZ | 15MHZ
| 19.6608MHZ
[:SENSe]:ROSCillator:EXTernal:FREQuency?
ROSC:EXT:FREQ 13 MHz
sets the external reference frequency to 13 MHz, but does not
select the external reference.
ROSC:SOUR EXT selects the external reference.
Only the values shown are valid External Frequencies. You
may specify these in numeric form, but they are interpreted
as an enumeration and an error will result if the value does
not match one of the choices in the list.
Before switching to the external reference source, specify the
frequency of the external reference that you plan to use.
Not affected by Preset.
Not Saved in Instrument State. Neither the external
reference frequency nor the state of this function (Int or Ext)
are affected by Preset or power cycle.
1 MHz
The external even second reference is set remotely by
selecting 0.5 Hz.
Chapter 4