Operating Manual EMI TEST RECEIVER ESIB7 - Rohde & Schwarz

ESIB
Analyzer - Traces
On completion of averaging, ie when the number of sweeps defined with SWEEP COUNT has been
reached, a sliding average given by the following formula is obtained with CONTINUOUS SWEEP
(N −1)
⋅TRACEn - 1 + Meas Value , where Trace = new trace
TRACEn
=
N
Trace old = old trace
N = SWEEP COUNT
The display "Sweep 200 of 200" then remains constant until there is a new start.
In SINGLE SWEEP mode, SWEEP START initiates n single sweeps. The sweeps are stopped as soon
as the selected number of sweeps has been reached. The number of the current sweep and the total
number of sweeps are shown in the display: "Sweep 3 of 200".
SWEEP
COUNT
The SWEEP COUNT softkey activates the entry of the number of sweeps
used for averaging.
The range for SWEEP COUNT is 0 through 32767. For 0, the ESIB performs
a sliding average over 10 sweeps. For 1, no averaging takes place.
The default setting is 10 sweeps. The programming naturally influences the
sweep duration. The number of sweeps used for averaging is the same for
all 4 traces.
Note : The setting of the SWEEP COUNT in the trace menu is equivalent
to the setting in the sweep menu.
IEC/IEEE-bus command :[SENSe:]SWEep:COUNt 10
MAX HOLD
The MAX HOLD softkey activates the max hold mode.
In this display mode, the ESIB saves for each sweep the largest of the
previously stored/currently measured values in the trace memory. The
detector is set automatically to MAX PEAK. In this way, the maximum value
of a signal can be determined over several sweeps.
This is especially useful for measurement of modulated or pulsed signals.
The signal spectrum is built up sweep by sweep until all the signal
components have been captured.
Pressing of the MAX HOLD softkey again clears the trace memory and
restarts the max hold mode.
If MAX HOLD is enabled, a new start is made after clearing the trace memory
for each frequency change, (start frequency, stop frequency, center
frequency or frequency span), a reference level change or switching between
linear/logarithmic scales.
IEC/IEEE-bus command
:DISPlay[:WINDow]:TRACe:MODE MAXH
1088.7531.12 4.229 E-15