Tektronix RSA6100A Series, Help Manual

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Glossary Modulating Signal
Modulating Signal
The signal which modulates a carrier. The signal which varies or regulates some characteristic of another
signal.
Modulation
The process of varying some characteristic of a signal with a second signal.
Noise
Unwanted random disturbances superimposed on a signal which tend to obscure it.
Noise Bandwidth (NBW)
The exact bandwidth of a fi lter that is used to calculate the absolute power in dBm/Hz.
Noise Floor
The noise intrinsic to a system that represents the minimum limit at which input signals can be observed;
ultimately limited by thermal noise (kTB). The analyzer noise
fl oor appears as a “grassy” baseline in the
display, even when no signal is present.
Open (Recall)
Bring data into the application from a fi le of application-native format.
OQPSK
Acronym for Offset QPSK (Quadrature Phase Shift Keying).
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RSA6100A Series Real-Time Spectrum Analyzers Help