R&S FSQ Signal Analyzer - Rohde & Schwarz

R&S FSQ Instrument Functions
Accuracy Enhancement
label
Medium APX
(approximation)
- Aborted
normalization
Tracking Generator – Option R&S FSU-B9
Reason/Limitation
Change of the following settings:
• coupling (RBW, VBW, SWT)
• reference level, RF attenuation
• start or stop frequency
• output level of tracking generator
• frequency offset of tracking generator
• detector (max. peak, min. peak, sample, etc.)
Change of frequency:
• max. 625 points within the set sweep limits
(corresponds to a doubling of the span)
• 625 and more extrapolated points within the current
sweep limits (in case of span doubling)
At a reference level (REF LEVEL) of -10 dBm and at a tracking generator output
level of the same value the R&S FSQ operates without overrange reserve, i.e. the
R&S FSQ is in danger of being overloaded if a signal is applied whose amplitude
is higher than the reference line. In this case, either the message OVLD for overload
is displayed in the status line or the display range is exceeded (clipping of the
trace at the upper diagram border = Overrange).
Overloading can be avoided as follows:
• Reducing the output level of the tracking generator (SOURCE POWER,
NETWORK menu)
• Increasing the reference level (REF LEVEL, AMPT menu)
4.230 Operating Manual 1313.9681.12 - 01