Tektronix RSA6100A Series, Руководство пользователя

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RF Measurements > Occupied BW & x dB BW Parameters Tab
Parameters Tab
The Parameters tab enables you to specify parameters that control the Occupied BW measurement.
Setting Description
Occupied BW % Power Speci fi es the proportion of power within the occupied bandwidth (referenced against the
total power in the measurement bandwidth).
x dB level x dB level de fi nes the x dB BW level search threshold.
Measurement BW Speci fi es the frequency range used by the measurement.
Max Hold spectral data Enables the Max Hold function.
Average results Enables/disables results averaging. Note that this is not an averaging of the trace, but an
averaging of the results.
Count Speci fi es the number of results averaged to calculate the Occupied BW. Range: 2 to
10,000.
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.
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RSA6100A Series Real-Time Spectrum Analyzers Help