R&S ESR Series, User Manual

Page: 350 / 1126

Spectrum Measurements
R&S
®
ESR
347 User Manual 1175.7068.02 ─ 12
Manual ← CF Stepsize
Opens an edit dialog box to enter a fixed step size for the center frequency.
Remote command:
[SENSe:]FREQuency:CENTer:STEP
on page 665
Start
Opens an edit dialog box to define the start frequency. The following range of values is
allowed:
f
min
≤ f
start
≤ f
max
– span
min
f
min
, f
max
and span
min
are specified in the data sheet.
Remote command:
[SENSe:]FREQuency:STARt
on page 825
Stop
Opens an edit dialog box to define the stop frequency. The following range of values
for the stop frequency is allowed:
f
min
+ span
min
≤ f
stop
≤ f
max
f
min
, f
max
and span
min
are specified in the data sheet.
Remote command:
[SENSe:]FREQuency:STOP
on page 825
Frequency Offset
Opens an edit dialog box to enter a frequency offset that shifts the displayed frequency
range by the specified offset.
The softkey indicates the current frequency offset. The allowed values range from
-100
GHz to 100 GHz. The default setting is 0 Hz.
Remote command:
[SENSe:]FREQuency:OFFSet
on page 824
Signal Track (span > 0)
Opens a submenu to define the signal tracking characteristics:
●
search bandwidth
●
threshold value
●
trace
The search bandwidth and the threshold value are shown in the diagram by two verti-
cal lines and one horizontal line, which are labeled as "TRK". After each sweep the
center frequency is set to the maximum signal found within the searched bandwidth. If
no maximum signal above the set threshold value is found in the searched bandwidth,
the track mechanism stops.
The submenu contains the following softkeys:
●
"Track On/Off (span > 0)" on page 348
●
"Track BW (span > 0)" on page 348
●
"Track Threshold (span > 0)" on page 348
●
"Select Trace (span > 0)" on page 348
Configuration