3 Spectrum Analyzer Mode
3.10 TOI Measurement
Single Mode The instrument takes a single sweep when in Single mode, or if in average or
Max/Min Hold, or if there is a Waterfall window displayed, it takes multiple sweeps
until the average/hold count reaches the Average/Hold Num, then the count stops
incrementing, and the instrument stops sweeping
See the Trace key description under Trace Average for the averaging formula used.
The trigger condition must be met prior to the sweep
The type of trace processing for multiple sweeps is set under the Trace key, with
choices of TraceAverage, Max Hold, or Min Hold
If the instrument is in Single measurement mode, pressing the Cont/Single toggle
control does not zero the count and does not cause the sweep to be reset; the only
action is to put the instrument into Continuous measurement operation.
If the instrument is already in Continuous sweep:
–
:INIT:CONT 1 has no effect
–
:INIT:CONT 0 places the instrument in Single Sweep but has no effect on the
current sequence until k = N, at which point the current sequence will stop and
the instrument will go to the idle state
See "Restart" on page 2039 for details of :INIT:IMMediate.
If the instrument is already in Single sweep, :INIT:CONT OFF has no effect.
If the instrument is already in Single sweep, then pressing Cont/Single in the middle
of a sweep does not restart the sweep or sequence. Similarly, pressing Cont/Single
does not restart the sweep or sequence if the sweep is not in the idle state (for
example, if you are taking a very slow sweep, or the instrument is waiting for a
trigger). Even though pressing Cont/Single in the middle of a sweep does not restart
the sweep, sending :INIT:IMM does reset it.
If the instrument is in Single sweep, and not Averaging/Holding, and you want to
take one more sweep, press Restart.
If the instrument is in Single sweep, and Averaging/Holding, and you want to take
one more sweep without resetting the Average trace or count, go to Meas Setup
and increment the average count by 1 by pressing the Step-Up key while
Average/Hold Num is the active function. You can also do this by sending
:CALC:AVER:TCON UP.
Restart
Restarts the current sweep, or measurement, or set of averaged/held sweeps or
measurements. If you are Paused, pressing Restart performs a Resume.
The front-panel key Restart performs exactly the same function.
The Restart function is accessed in several ways:
Spectrum Analyzer Mode User's &Programmer's Reference 1839