Rohde & Schwarz FSW43 - How to Define the Frequency Range; Signal Tracking; Signal Tracking State; Tracking └ Tracking └ Trace

Common Measurement Settings
R&S
®
FSW
391User Manual 1173.9411.02 ─ 19
This parameter has no effect on the R&S FSW hardware, or on the captured data or on
data processing. It is simply a manipulation of the final results in which absolute fre-
quency values are displayed. Thus, the x-axis of a spectrum display is shifted by a
constant offset if it shows absolute frequencies, but not if it shows frequencies relative
to the signal's center frequency.
A frequency offset can be used to correct the display of a signal that is slightly distorted
by the measurement setup, for example.
The allowed values range from -100 GHz to 100 GHz. The default setting is 0 Hz.
Remote command:
[SENSe:]FREQuency:OFFSet on page 833
Signal Tracking
Defines the settings for signal tracking. These settings are only available for spans > 0.
For more details see chapter 6.3.1.3, "Keeping the Center Frequency Stable - Signal
Tracking", on page 385.
Signal Tracking State ← Signal Tracking
Activates or deactivates signal tracking. This function is only available for spans > 0.
If activated, after each sweep, the center frequency is set to the maximum level of the
specified trace found within the searched bandwidth.
Remote command:
CALCulate:MARKer:FUNCtion:STRack[:STATe] on page 835
Tracking Bandwidth ← Signal Tracking
Defines the search bandwidth for signal tracking around the center frequency.
Remote command:
CALCulate:MARKer:FUNCtion:STRack:BANDwidth on page 835
Tracking Threshold ← Signal Tracking
Defines the threshold value for signal tracking. If the signal level does not pass the
threshold, the center frequency is not changed.
Remote command:
CALCulate:MARKer:FUNCtion:STRack:THReshold on page 835
Signal Track Trace ← Signal Tracking
Defines the trace to be tracked.
Remote command:
CALCulate:MARKer:FUNCtion:STRack:TRACe on page 835
6.3.3 How To Define the Frequency Range
The following step-by-step instructions demonstrate how to configure the frequency
and span settings. For details on individual functions and settings see chapter 6.3.2,
"Frequency and Span Settings", on page 387.
Frequency and Span Configuration