R&S ESR Series, User Manual

Page: 375 / 1126

Spectrum Measurements
R&S
®
ESR
372 User Manual 1175.7068.02 ─ 12
Remote command:
SWE:TYPE AUTO
, see
[SENSe:]SWEep:TYPE
on page 835
FFT Filter Mode ← Sweep Type
Defines the filter mode to be used for FFT filters by defining the partial span size. The
partial span is the span which is covered by one FFT analysis.
Auto ← FFT Filter Mode ← Sweep Type
The firmware determines whether to use wide or narrow filters to obtain the best mea-
surement results.
Remote command:
[SENSe:]BANDwidth|BWIDth[:RESolution]:FFT
on page 831
Narrow ← FFT Filter Mode ← Sweep Type
For an RBW
≤
10kHz, the FFT filters with the smaller partial span are used. This allows
you to perform measurements near a carrier with a reduced reference level due to a
narrower analog prefilter.
Remote command:
[SENSe:]BANDwidth|BWIDth[:RESolution]:FFT
on page 831
Sweep Count
Opens an edit dialog box to enter the number of sweeps to be performed in the single
sweep mode. Values from 0 to 32767 are allowed. If the values 0 or 1 are set, one
sweep is performed. The sweep count is applied to all the traces in a diagram.
If the trace configurations "Average", "Max Hold" or "Min Hold" are set, the sweep
count value also determines the number of averaging or maximum search procedures.
In continuous sweep mode, if sweep count = 0 (default), averaging is performed over
10 sweeps. For sweep count =1, no averaging, maxhold or minhold operations are per-
formed.
For details on trace configuration see Chapter 6.3.1, "Trace Configuration" ,
on page 387.
Example:
●
Press the [TRACE] key > Trace 1/Trace 2/Trace 3/Trace 4/Trace 5/Trace 6 softkey
> "Max Hold" on page 171 softkey.
●
Press the [SWEEP] key > "Sweep Count" softkey.
●
In the "Average Sweep Count" dialog box, enter 10 .
●
Press the "Single Sweep" on page 370 softkey:
R&S ESR performs the "Max Hold" function over 10 sweeps.
Remote command:
[SENSe:]SWEep:COUNt
on page 834
Sweep Points
Opens an edit dialog box to enter the number of measured values to be collected dur-
ing one sweep.
●
Entry via rotary knob:
–
In the range from 101 to 1001, the sweep points are increased or decreased in
steps of 100 points.
Configuration