Combined RF Upconverter/Downconverter
IEEE 488.2 Command Reference
7.10 *SDS
<
NRf
>
The
*SDS
(Save Default device Settings) command restores the specified state of the QM1004A-2-18
Combined RF Upconverter/Downconverter to the default state settings. There are 5 re-writeable memory
locations, specified by choosing an index between 1 and 5. The parameters restored are the
Tune Fre-
quency, RF Power State, LNA Power State, Reference Frequency, External Reference Enabled, External
Referece Switch Override, PLL Mode, Reference Divider, Upconverter Attenuation, and Downconverter
Attenuation
. For a detailed description of the parameters saved, see the relevent command descriptions
in this manual. Issuing this command does not change the current settings. NOTE: The MEM_CLR but-
ton on the back panel will rewrite the contents of states 1-5 with the contents of state 0 when depressed,
serving as a reset to factory defaults.
Syntax
*
SDS
Space
NRf
Allowed Values
The
NRf
parameter can be any integer in the range of 1 to 5.
Error Message
If the parameter is not in the recognized format, error
-102, "Syntax error"
occurs.
If the parameter is less than 1 or greater than 5, error
-222, "Data out of range"
occurs.
Quonset Microwave
Revision 1.4.3
81
