Motorola PTP 600 System User Manual page 143

8.3.7.8 Active Channel History
The active channel history is a time series display of the channels used by the PTP 600
Series Bridge over the last 25 hours. The active channel history is activated from the main
Spectrum Management page using the 'Active Channel History' hyperlink. An example of the
active channel history display is shown in
display this signifies that the wireless link occupied this channel during the measurement
period. The measurement periods are one minute (from zero to sixty minutes) and twenty
minutes from (60 minutes to twenty five hours).
8.3.7.9 Viewing Historic Spectrum Management Metrics
Spectrum Management allows the system administrator to view the results of previous
measurement quantization periods. Holding down the shift key and clicking the appropriate
channel on the local channel spectrum plots activates this feature. This feature is available on
both the master and slave web page.
Figure 78 - Active Channel History Screen
Figure 79 - Spectrum Management Time Series Plot
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F igure 78. Where there are parallel entries on the
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