Rohde & Schwarz R&S FSL3 - Page 193

Selecting the Frequency and Span – FREQ Key R&S FSL
1300.2519.12 4.8 E-11
S
tart
Opens an edit dialog box to define the start frequency. The following range of values is allowed:
f
m
in

f
s
tart

f
m
ax
– span
m
in
f
min,
f
max
and span
min
are specified in the data sheet. To help analyze signals located at the end of
the frequency range, for R&S FSL models with an upper frequency limit of 6 GHz or less, the
f
max
value is extended by 0.05 GHz for direct entry via the key pad. The preset and full span
values remain unchanged.
 Remote: FREQ:STAR 20MHz
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. To help analyze signals located at the end of
the frequency range, for R&S FSL models with an upper frequency limit of 6 GHz or less, the
f
max
value is extended by 0.05 GHz for direct entry via the key pad. For the R&S FSL18 model,
the f
max
value is extended to 20 GHz. The preset and full span values remain unchanged.
 Remote: FREQ:STOP 2000MHz
CF Stepsize
Opens a submenu to set the step size of the center frequency. In addition to the =Center,
=Marker and Manual softkeys, the other softkeys are displayed depending on the selected
frequency span.
The step size can be coupled to the span (span > 0) or the resolution bandwidth (span = 0) or it
can be manually set to a fixed value.
0.1*Span (span > 0)
Sets the step size for the center frequency to 10% of the span.
 Remote: FREQ:CENT:STEP:LINK SPAN
 Remote: FREQ:CENT:STEP:LINK:FACT 10PCT
0.1*RBW (zero span)
Sets the step size for the center frequency to 10% of the resolution bandwidth. This is the
default setting.
 Remote: FREQ:CENT:STEP:LINK RBW
 Remote: FREQ:CENT:STEP:LINK:FACT 10PCT