Freq/ Step - Keysight x-series User Reference Manual

8 Frequency Scan Measurement
FREQ Channel
Notes
Dependencies
Couplings
Preset
State Saved
Min
Max
Default Unit
Status Bits/OPC
dependencies
Backwards
Compatibility SCPI
Backwards Compatibility
SCPI Notes
Initial S/W Revision

Freq/ Step

Changes the step size for the Frequency.
406
FREQ:STOP:AUTO 1
FREQ:STOP:AUTO?
The Max values are dependent on Hardware Options (503, 507, 508, 513, 526)
By direct entry:
You cannot set the Stop frequency < the Start frequency. You cannot set the Start frequency = the
Stop frequency. You cannot select zero span by setting Start = Stop. You cannot set the Stop
Frequency to a value that would create a span of less than 10 Hz. If you try to do any of these, the
Start Frequency will change to maintain a minimum value of 10 Hz for the difference between Start
and Stop.
With the knob or step keys:
You cannot decrement the Stop Freq to a value less than the Start Freq + 10 Hz. If already in zero
span, you cannot decrement at all, and the first increment will be forced to at least 10 Hz.
The Stop Frequency can be limited by Span limits, if the Start Frequency is above its preset value.
This key is grayed out when a scan sequence is running. If the grayed out key is pressed, an advisory
message is generated. If the equivalent SCPI command is sent, this same message is generated as
part of a "–221, Settings conflict" warning.
None
In auto, the stop frequency value will couple to the stop frequency of the highest turned-on range in
the scan table. If all ranges are off, the stop frequency will be set to 1 GHz.
1 GHz
ON
Saved in instrument state.
If the knob or step keys are being used, it depends on the value of the start frequency
When the Scale Type is set to Log, the min Stop Frequency will be limited to 20 Hz. If you set the
Stop Frequency to a value <20 Hz during Lin Scale Type, changing the Scale Type to Log will
automatically change the start frequency to 20 Hz. However, changing the Scale Type back to Lin
type will not change the frequency to the value previously set.
Depends on the instrument maximum frequency. If the knob or step keys are being used, it depends
on the value of the start frequency
Hz
non-overlapped
:SENSe1|SENSe2:FREQuency:STOP
This command above is included for ESU compatibility. The suffix 1|2 is irrelevant to the
measurement, they are added solely for remote language compatibility.
A.07.00
EMI Receiver Mode Reference