
QM1004-0.5-18 Combined RF Upconverter/Downconverter
User Manual
2.13 FREQuency:REFerence:FREQuency <numeric value>
This command allows the user to set the QM1004-0.5-18 reference oscillator frequency in MHz. The
allowed values are integers between 10 and 250 MHz.
Syntax
:
FREQ
:
REF
:
FREQ
Space
Numeric Value
?
Example
:FREQ:REF:FREQ 150
This command sets the external reference frequency of the
QM1004-0.5-18 to 150 MHz
.
Default Condition
On power up, or when a
*RST
command is issued, the QM1004-0.5-18 reference frequency returns to
the boot state’s setting. The Combined RF Upconverter/Downconverter default setting is 10.
Query
:FREQ:REF:FREQ?
This query returns the center frequency of the QM1004-0.5-18 in MHz.
Error Message
If the parameter is not in the recognized format, error
-102, "Syntax error"
occurs.
If the parameter is not between 10 and 250, error
-222, "Data out of range"
occurs.
Quonset Microwave
Revision 1.2.1
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