3 Short-Range Comms & IoT Mode
3.9 Occupied BW Measurement
Mode Value
State Saved Yes
Min 100 Hz
Max Hardware Maximum Span
Backwards
Compatibility SCPI
[:SENSe]:EBWidth:FREQuency:SPAN
CF Step
Changes the step size for the center frequency and start and stop frequency
functions. Once a step size has been selected, and the center frequency function is
active, the step keys (and the UP|DOWN parameters for Center Frequency from
remote commands) change the center frequency by the step-size value. The step
size function is useful for finding harmonics and sidebands beyond the current
frequency span of the instrument.
Note that Start Frequency and Stop Frequency also step by the CF Step value.
Remote Command
[:SENSe]:FREQuency:CENTer:STEP[:INCRement] <freq>
[:SENSe]:FREQuency:CENTer:STEP[:INCRement]?
[:SENSe]:FREQuency:CENTer:STEP:AUTO OFF | ON | 0 | 1
[:SENSe]:FREQuency:CENTer:STEP:AUTO?
Example Increase the current center frequency value by 500MHz:
:FREQ:CENT:STEP 500 MHz
:FREQ:CENT UP
:FREQ:CENT:STEP:AUTO ON
:FREQ:CENT:STEP:AUTO?
Notes Preset and Max values depend on Hardware Options
Dependencies Span, RBW, Center frequency
If the electronic/soft attenuator is enabled, any attempt to change the value of the center frequency
>3.6GHz by pressing the Up Arrow key, fails and results in an advisory message. If the equivalent
SCPI command is sent, this same message is generated as part of a “-221, Settings conflict” warning
Couplings When auto-coupled in a non-zero span, the center frequency step size is set to 10% of the span
When auto-coupled in zero span, the center frequency step size is set to the equivalent -3dB RBW
value
Preset Auto
ON
Short Range Comms & IoT Mode User's &Programmer's Reference 1285