User manual
AR2010 USB Stick Synthesizer User Manual
3. FREQuency:REFerence:DIVider <numeric value>
This command allows the user to set the frequency reference divider of the USB Stick Synthesizer. The
reference frequency divider is used to provide ο¬ner resolution steps in integer mode. The acceptable
range for the reference divider is 1 through 127. The fundamental frequency step size in integer mode is
π
πππ
π
, where π is the value of the reference divider.
Note: Phase noise will degrade as the REFDIV value increases.
Syntax
FREQ :REF :DIV Space numeric value (1-127)
?
Allowed Values
The reference frequency divider value can be set to any integer value between 1 and 127.
Example
FREQ:REF:DIV 10 This command sets the reference divider value to 10.
Default Condition
On power up, or when a *RST command is issued, the reference divider value defaults to the frequency
stored in the selected SYSTem:BOOTSTATE.
Query
FREQ:REF:DIV? This query returns the reference divider value
Applied Radar, Inc. Revision 2.0.1 20