NARDA IDA, Operating Manual, Page: 187 / 292

Narda IDA - 3106
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The maximum values are also shown in addition to the actual or mean
values:
Table 32: Values displayed in
Level Meter
mode
Type Function / Explanation
Peak Displays the instantaneous measured value.
Note:
The peak value display (Peak) is held for 480 ms. The value
displayed therefore corresponds to the highest level measured
within the last 480 ms. This means that the numerical display is
more stable and the graphical display is smoothed.
Max Displays the maximum value that has occurred since the
measurement started.
RMS Displays the RMS value averaged over a defined period of time.
The bar next to
AVG
in the lower status bar indicates the progress
of the measurement until the averaging time is reached. When this
time is reached (complete bar), the instrument refreshes the
resulting value using the new measurement results and discards the
oldest results ( progressive averaging over time).
RMS Max Displays the maximum value of the averaged values that has
occurred since the measurement started.