R&S FSV-K7, Operating Manual, Page: 11 / 262

Analog Demodulation Option R&S FSV–K7
R&S
®
FSV-K7/K7S
11 Operating Manual 1176.7561.02 ─ 06
Further information
2.1.1 Circuit Description – Block Diagrams............................................................................ 11
2.1.2 Demodulation Bandwidth.............................................................................................. 13
2.1.3 Sample Rate, Measurement Time and Trigger Offset...................................................13
2.1.4 Variable-Sized Capture Buffer.......................................................................................15
2.1.5 AF Trigger..................................................................................................................... 16
2.1.6 Configuring Traces........................................................................................................ 16
2.1.7 Trace Mode Overview................................................................................................... 17
2.1.8 Detector Overview.........................................................................................................19
2.1.9 Stability of Measurement Results..................................................................................20
2.1.10 Measurement Result Display........................................................................................ 20
2.1.11 ASCII File Export Format.............................................................................................. 23
2.1.1 Circuit Description – Block Diagrams
The software demodulator runs on the main processor of the analyzer. The demodula-
tion process is shown in
Figure 2-1 the figure below. All calculations are performed
simultaneously with the same I/Q data set. Magnitude (= amplitude) and phase of the
complex I/Q pairs are determined. The frequency result is obtained from the differential
phase.
For details on the analyzer signal processing refer to the
TRACe:IQ
subsystem in the
base unit.
Instrument Functions Analog Demodulation