Rohde & Schwarz SMU200A - Page 731

Remote Control Commands
R&S
®
SMU200A
711Operating Manual 1007.9845.32 ─ 15
[:SOURce<hw>]:FREQuency:CENTer <Center>
The command sets the center frequency of the sweep. This setting in combination with
the span setting ([SOURce:]FREQuency:SPAN) defines the sweep range.
This command is linked to the commands [SOURce:]FREQuency:STARt and
[SOURce:]FREQuency:STOP, i.e. changing these values causes the CENTer value to
change, and vice versa:
CENTer = (STARt + STOP)/2
As with the Frequency value entered in the header, the OFFSet value is also taken into
consideration with this command. The specified value range is therefore only effective if
OFFSet is set to 0. The value range for other OFFset values can be calculated using
the following formula.
300 kHz + OFFSet ... RF
max
+OFFSet
Correlation: CENTer = (STARt + STOP)/2
Parameters:
float
300kHz to RFmax (RFmax depending on model)
0.01Hz
300MHz
Hz
<Center>
Range:
Increment:
*RST:
Default unit:
FREQ:CENT 400 MHz
sets the center frequency for the frequency sweep to 400 MHz.
FREQ:SPAN 200 MHz
sets a span of 200 MHz. This sets the sweep range to 300 MHz
to 500 MHz.
Example:
SCPI conformUsage:
[:SOURce<hw>]:FREQuency:LOSCillator:MODE <Mode>
Selects the mode of the local oscillator coupling.
SOURce Subsystem