Tektronix WCA280A User Manual page 445

WCA230A & WCA280A User Manual
Shape Factor (Skirt Selectivity)
The ratio of the frequency separation of the two (60 dB/6 dB) down points
on the response curve to the static resolution bandwidth.
Single Sweep
Operating mode in which the sweep generator must be reset for each sweep.
Especially useful for obtaining single examples of a signal spectrum.
Span Per Division, Span/Div
Frequency difference represented by each major horizontal division of the
graticule.
Spectrum
The frequency domain representation of a signal wherein it is represented by
displaying its frequency distribution.
Spectrum Analysis
The technique or process of determining the frequency distribution of a
signal.
Spectrum Analyzer
A device for determining the frequency components of a signal.
Spectrum Length
The amount of time required to acquire one frame.
Spurious Response
A response to a spectrum analyzer wherein the displayed frequency is not
related to the input frequency.
Vertical Scale Factor, Vertical Display Factor
The number of dB, volts, etc., represented by one vertical division of a
spectrum analyzer display screen.
View
An area or window of the display screen which contains information all of
the same type (such as a Spectrum View or a Power versus Time View).
Glossary
Glossary- 7