Signal Source Configuration
R&S
®
FPC
52
User Manual 1178.4130.02 ─ 07
11
Signal Source Configuration
Access
: "Meas" > "Source"
Remote commands to configure the signal source:
●
Chapter 19.9, "Signal Source Configuartion"
Available for the R&S
FPC1500 and in the spectrum and VNA applications.
The signal source settings control the signal output on the corresponding RF connector
on the front panel of the R&S
FPC. You can use the signal source for transmission
measurements, for example. The frequency and level of the generated signal is vari-
able.
Selecting the output frequency
The output frequency depends on the mode you have selected.
1. Press the "Meas" key.
2. Select the "Source" menu item to open the signal source menu.
3. Select one of the signal source modes.
● "Off"
Turns off the signal source. No signal is output on the RF connector.
● "CW"
Opens an input field that allows you to define the output frequency. The output
signal is a continuous wave signal whose frequency remains the same through-
out the measurement.
● "CW Coupled"
The output signal is a continuous wave signal whose frequency is coupled to
the
. When you change the center frequency, the R&S
FPC
adjusts the output signal accordingly.
● "Tracking Generator"
The output signal is a continuous wave signal whose frequency is coupled to
the measurement frequency.
For time domain measurements (span = 0), use either mode "CW" or "CW
Coupled".
For frequency domain measurements (span > 0), the R&S
FPC automatically
adjusts the frequency of the generated signal to the current measurement fre-
quency. The number of frequency changes thus depends on the number of
measurement points.
You can define an additional frequency offset for the output signal. The
R&S
FPC opens the "TG Offset" input field when you turn on the tracking gen-
erator. An offset of 1
MHz, for example, generates a signal that is 1
MHz above
the measurement frequency.
Defining an offset is possible only when the frequency span is smaller than the
full span (max. span = full span - TG offset). You have to reduce the full span
