Tektronix SPECMON3 Manual page 132

General Signal Viewing
Scale Tab
The Scale tab allows you to change the vertical and horizontal scale settings. Changing the scale settings
changes how the trace appears on the display but does not change control settings such as Measurement
Frequency. In effect, these controls operate like pan and zoom controls.
The Scale tab values are unique to each display. Also, note that each display uses horizontal and vertical
units that are appropriate for the display. For example, for the Spectrum display uses power (dBm) units
and frequency (Hz) units; the Amplitude vs. Time display uses power (dBm) and time (seconds) units; and
the Phase vs. Time display uses phase (degrees) and time (seconds) units.
Setting
Vertical
Scale
Offset
Autoscale
Horizontal
Zoom Start
Zoom Stop
Log
Reset Scale
xxx
Prefs Tab
The Prefs tab enables you to change parameters of the measurement display. The parameters available on
the Prefs tab vary depending on the selected display, but include such items as enabling/disabling Marker
Readout, switching the Graticule display on/off, and Marker Noise mode.
Each of the General Signal Viewing displays maintains its own separate values for the controls that appear
on the Prefs tab. Some parameters appear with most displays while others appear with only one display.
For example, the Show Marker readout in graph check box appears in the Prefs tab for every display.
However, the Show Power Trigger level check box only appears on the Amplitude vs Time Prefs tab.
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Description
Controls the vertical position and scale of the trace display.
Changes the vertical scale.
Vertical Offset adjusts the reference level away from top of the graph.
Resets the scale of the vertical axis to contain the complete trace.
Controls the span of the trace display and position of the trace.
Sets the starting frequency for ...
Sets the stop frequency for ...
Resets the scale of the horizontal axis to contain the complete trace.
Resets all settings to their default values.
SPECMON3 & SPECMON6 Printable Help
Scale Tab