The Spectrum Application (RF Measurements)
R&S
®
FPL1000
289
User Manual 1178.3370.02 ─ 09
The normalized reference trace (0
dB directly after calibration) is displayed on this ref-
erence line, indicated by a red line in the diagram. By default, the reference line is dis-
played at the top of the diagram (90% of the window height). If you shift the reference
line, the normalized trace is shifted, as well.
Shifting the reference line (and normalized trace)
You can shift the reference line - and thus the normalized trace - in the result display by
changing the
.
If the DUT inserts a gain or an attenuation in the measurement, this effect can be
reflected in the result display on the R&S
FPL1000. To reflect a power offset in the
Displayed Information and Errors
Channel bar
If internal generator control is active, some additional information is displayed in the
channel bar.
Label
Description
"CWSource:" <source
power>
Internal generator in operation as independent CW source with specified
level
"Trk.Gen:" <source power>
Internal generator active; signal sent with <source power> level
"NOR"
Normalization on;
No difference between reference setting and measurement
"APX" (approximation)
Normalization on;
Deviation from the reference setting occurs
Error and status messages
The following status and error messages can occur during internal generator control.
Message
Description
"Generator Frequency Limits Exceeded!"
The allowed frequency ranges for the generator were
exceeded (see data sheet)
"Generator Level Overrange" / "Generator Level
Underrange"
The power level exceeds the range specified in the data
sheet
Receiving Data Input and Providing Data Output
