R&S SMJ100A, Operating Manual

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Instrument Function
R&S
®
SMJ100A
206 Operating Manual 1403.7458.32 ─ 14
Figure 5-7: Transition for a 1 kHz step at 1 GHz without phase continuous mode active. For the
graphical display the signal is down converted into the kHz range.
The phase continuous mode freezes the settings of the synthesizer (for example divid-
ers, filters, phase detectors) which could generate phase discontinuities when
changed. The frequency change is effectively performed by changing the fine resolu-
tion synthesizer. This allows a phase continuous change from one frequency to
another without any transients (see figure below).
Figure 5-8: Transition for a 1 kHz step at 1 GHz with phase continuous mode active. For the graphical
display the signal is down converted into the kHz range.
RF Signal and Analog Modulations - RF Block