Nautel NX15, Operation And Maintenance Manual

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NX15/NX25 Operations and Maintenance Manual Operating the transmitter
Page 2-42 Issue 6.0 2019-01-31
Figure 2.27: Power Distribution Graph
Power distribution graph.
See Figure 2.27 . The exciter measures the relative power levels of
the signal and determines the probability of exceeding a given power level, relative to the
average power. The data is plotted in the
Power Distribution Graph
as a CCDF
(complementary cumulative distribution function). The x-axis displays the relative power level
in dB, with the reference representing the average power. The y-axis displays the probability of
exceeding that power level. This graph can be used to assess the distribution of a given signal,
and provides an indication of the amount of peak power capability required.
Touch on the panel to display a cursor in the approximate area on the trace. The cursor
position (power gain and probability) is noted in the upper, right-hand corner of the panel.
Touch in other areas of the tool menu panel to provide a coarse adjustment of the cursor
position.
Use the left and right buttons to make fine adjustments.
Use the up or down button to maximize (if it was minimized) or minimize (if it was
maximized) the panel size.
Cursor
Left
Cursor
Right
Close
Minimize
(Maximize)