Rohde & Schwarz SMC100A - Page 250

Command Description R&S SMC100A
1411.4060.32 6.48 E-1
[SOURce:]FREQuency:STEP[:INCRement] 0 Hz ... RF
m
ax
- 100 kHz
The command sets the step width for the frequency setting if the frequency values UP/DOWN are
used and variation mode SOUR:FREQ:STEP:MODE USER is selected. The command is linked to
Variation Step for manual control, i.e. the command also sets the step width of the rotary knob for
Variation Active on.
Example:
FREQ:STEP 50 kHz
'
sets the step width for the frequency setting to 50 kHz'.
*RST value Resolution Options SCPI
1 MHz 0.01 Hz Device-specific
[SOURce:]FREQuency:STEP:MODE USER | DECimal
This command activates (USER) or deactivates (DECimal) the user-defined step width used when
varying the frequency value with the frequency values UP/DOWN. The command is linked to the
command Variation Active for manual control, i.e. the command also activates/deactivates the
user-defined step width used when varying the frequency value with the rotary knob.
Example:
FREQ:STEP 50 kHz
'sets the step width for the frequency setting to 50 kHz'.
FREQ:STEP:MODE USER
'actives this step width for frequency variation with the rotary knob (manual
control) and with frequency values UP/DOWN (remote control)'.
*RST value Resolution Options SCPI
DECimal - Device-specific
[SOURce:]FREQuency:STOP 300 kHz...RF
max
(RF
max
depending on model)
This command sets the stop frequency for the sweep mode. STOP can be less than STARt.
This command is linked to the commands [:SOUR]:FREQ:CENt and [:SOUR]:FREQ:SPAN, i.e.
changing these values causes the STARt value to change, and vice versa:
STOP = (CENTer + SPAN/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
Example:
FREQ:STOP 2 GHz
'sets the stop frequency for the frequency sweep to 2 GHz.
FREQ:STAR 1 MHz
'sets the start frequency for the frequency sweep to 1 MHz.
*RST value Resolution Options Correlation SCPI
500 MHz 0.01 Hz STOP = (CENTer + SPAN/2) Compliant