Keysight x-series User Manual

3 Spectrum Analyzer Mode
3.11 Harmonics Measurement
If the instrument is in the process of aligning when a Restart is executed, the
alignment finishes before the restart function is performed.
Even when set for Single operation, multiple sweeps may be taken when Restart is
pressed (for example, when averaging/holding is on). Thus, when we say that
Restart "restarts a measurement", depending on the current settings, we may mean
that it:
–
Restarts the current sweep
–
Restarts the current measurement
–
Restarts the current set of sweeps if any trace is in Trace Average, Max Hold or
Min Hold
–
Restarts the current set of measurements if Averaging, or Max Hold, or Min Hold
is on for the measurement
If there is no Average or Max/Min Hold function (no trace in Trace Average or Hold,
or Average/Hold Num set to 1), and no Waterfall window is being displayed, a single
sweep is equivalent to a single measurement. A single sweep is taken after the
trigger condition is met; and the instrument stops sweeping once that sweep has
completed. However, with Average/Hold Num >1, and at least one trace set to Trace
Average, Max Hold, or Min Hold, or a Waterfall window being displayed, multiple
sweeps/data acquisitions are taken for a single measurement. The trigger condition
must be met prior to each sweep. The sweep is stopped when the average count k
equals the number N set for Average/Hold Num.
Once the full set of sweeps has been taken, the instrument goes to the idle state. To
take one more sweep without resetting the average count, increment the average
count by 1, by pressing the Step-Up key while Average/Hold Number is the active
function, or by sending the remote command :CALC:AVER:TCON UP.
Trace Update
The numeric results are not blanked at any time during the restart cycle.
For slow sweeps (see Trace Update section in Trace/Detector), the traces are
updated real-time during the sweep. There may be a special circumstance in
application mode measurements where an exception is made and the traces and/or
results need to be blanked before displaying the new results.
To summarize, the following list shows what happens to the trace data on various
events:
Event Trace Effect
Clear/Write pressed (even if already in Clear/Write) Set to mintracevalue
Max Hold pressed (even if already in Max Hold) Set to mintracevalue
1924 Spectrum Analyzer Mode User's &Programmer's Reference

Keysight x-series Specifications

General

Analysis Bandwidth	Up to 1 GHz (depending on model)
Real-Time Bandwidth	Up to 1 GHz (depending on model)
Form Factor	Benchtop
Connectivity	LAN, USB, GPIB
Resolution Bandwidth	1 Hz to 10 MHz (depending on model)