Spurious Display - Tektronix SPECMON3 Manual

RF Measurements
Parameters Tab
The Parameters tab enables you to specify parameters that control the Occupied BW measurement.
Setting
Occupied BW % Power
x dB level
Measurement BW
Max Hold spectral data
Average results
Count
xxx
x dB Level
The x dB level determines the x dB BW. The instrument analyzes the spectrum trace to locate the
frequencies at which the level is x dB down from the peak level calculated over the measurement
bandwidth. The frequency difference between the upper and lower crossing thresholds is the x dB BW.
Range: -80.0 to -1.0 dB; Resolution: 0.1%; Inc/dec small: 0.1%, large: 1%; Default: -26 dB
Max Hold Spectral Data
Max Hold displays the maximum value in the acquisition record for each display point. Each new trace
display point is compared to the previous maximum value and the greater value is retained for display
and subsequent comparisons.

Spurious Display

To show the Spurious display:
1. Click the Displays button or select Setup > Displays.
2. From the Folders box, select RF Measurements.
SPECMON3 & SPECMON6 Printable Help
Description
Specifies the proportion of power within the occupied bandwidth (referenced against the
total power in the measurement bandwidth).
x dB level defines the x dB BW level search threshold.
Specifies the frequency range used by the measurement.
Enables the Max Hold function.
Enables/disables results averaging. Note that this is not an averaging of the trace, but an
averaging of the results.
Specifies the number of results averaged to calculate the Occupied BW. Range: 2 to
10,000.
Parameters Tab
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