Spectrum Analyzer Mode Key Descriptions
Spectrum Analyzer Mode Functions
( A U T O C O U P L E )
accesses the softkey menu of functions that can be coupled. (Coupled functions are functions that are linked: if one function is changed, the other function is changed.) The functions that can be
•Resolution bandwidth couples to span.
•Video bandwidth couples to resolution bandwidth when the analyzer has a
•Sweep time couples to span, resolution bandwidth, and video bandwidth.
•RF attenuation couples to reference level.
0 Center frequency step size couples to 10% of span.
During normal operation, the sweep time, resolution bandwidth, and video bandwidth are coupled to yield optimum performance. If any of these functions becomes uncoupled (that is, is manually set), a “#” will appear next to the screen annotation representing the function on the screen.
If one or more functions are manually set so that the amplitude or frequency becomes uncalibrated, MEAS UNCAL appears on the right side of the graticule.
Recouple a single function by pressing the function label (to activate the function), and pressing the function again so that AUTO is underlined.
Pressing [AUTO COUPLE], AUTO ALL couples all coupled functions listed.