Boonton 4500B Peak Power Meter - Manual (Page 324)

Boonton 4500B RF Peak Power Analyzer
Application Notes 6-14
Table 6-3. Statistical Automatic Measurements (Opt 10 only)
In the Statistical mode the following five automatic measurements are displayed in the Model 4500B Text display for both
input channels and both trigger channels. The Text column lists the abbreviated forms that appear on the display screen.
Text TERM DEFINITION
Avg
Average Power: The unweighted avg of all power samples occurring since acquisition started.
Peak
Peak Power The highest power sample occurring since acquisition was started.
Min
Minimum Power The lowest power sample occurring since acquisition was started. In logarithmic
units a reading below the clip level will display as down arrows.
Pk/Avg Pk/Avg Ratio The ratio (in dB) of the Peak Power to the Average Power.
Dyn Rng
Dynamic Range The ratio (in dB) of the Peak Power to the Minimum Power. Displays down
arrows if the minimum power is less than the clip level in log units.
The following six cursor measurements display the set position and measured value where the movable cursor intersects the
measurement trace. Note that the markers are undefined in PDF presentation format. The position and value text for each
marker or reference line will be displayed with the color of the assigned channel for that particular cursor.
Text
TERM DEFINITION
RefLine1
Reference Line 1 Measures the CDF (or 1-CDF) % at the power level where reference line 1
intersect the assigned trace.
Note that if the intersection falls outside the horizontal screen extents, the
measured value will be clipped to % values within the horizontal axis. For this
reason, avoid zooming in horizontally with Time > X-Axis if you wish to make
Reference line measurements.
RefDelta Reference Line Delta For logarithmic units, displays the ratio (in dB) of the Reference Line 1 and
Reference Line 2 levels, or for linear units displays the difference (in %)
between the Reference Line 1 and Reference Line 2 levels and the difference (in
%) between their CDF (0r 1-CDF) values.
RefLine2
Reference Line 2 See Ref Line 1, above
Marker1
Marker 1 Measures the level at the selected %CDF (or 1-CDF).
Note that marker positions are rounded to the nearest pixel positions (1/50th of a
division), so for precise power measurements at very high or low % positions, it
may be necessary to zoom in horizontally with Statistics (Time) > Horz Scale.
Delta% Marker Delta Displays the difference (in %) between the marker positions and the ratio (in dB
for logarithmic units, % for linear units) of their levels.
Marker2
Marker 2 See Marker 1, above.