Gigahertz Solutions NFA 30M Operating Manual page 12

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Program Window "Statistics Channels"
To display the data of a particular channel, click the triangle to the left of the chan-
nel.
If multiple channels are open, an additional click on the channel information will bold
the channels plotted data and its statistical data.
The top five values are standard statistical values
hour" is used to analyse the number of steeply rising edges, spikes, peaks, pulses,
sharp bursts or high frequency transients of the field. The edge thresholds can be
defined in the Channel menu under Set edge criteria. This is an experimental func-
tion. PLEASE NOTE: If the 50 Hz high pass filter has been set with the help of the
configuration part of NFAsoft (maybe even as pre-setting), this only applies to the
channels "All3D", "AllX", "AllY", and "AllZ". Nevertheless, possible frequency com-
ponents at 16.7 Hz will also be recorded in the correspondent channel. In this case
the sum of the frequency specific channels may well be higher than that of "All3D".
The light-blue field underneath the statistical channel data represents the frequency
distribution of the measured intensities of the specific channel („Histogram"). It is
self-scaling and can be interpreted as follows:
 On the left side of the x-axis a formula calculates and plots how often the mini-
mum value has occurred in a given time interval, and similarly on the right side
for the maximum value.
 The higher point marks the measured intensity - found most often. The lower
points indicate a specific value measured very seldomly.
Menu
Edit
"Copy all": Copies the plotted data area as well as the drop-down of the "Statis-
tics/Channels" section into the buffer – from here it can be inserted directly into your
measurement protocol at any point of your choice. This is similar to a screen shot.
All other edit options are self explanatory.
View
"Edge Display"
Choose the menu option View/Edge Display to activate the edge display. The edge
display option will help find important field strength flucutations. Steep edges are
marked in the diagram in the colour corresponding to each channel – the marked
channel will be bolded, the others won't. This way you will always have an overview
of what's going on in the other channels, even if your focal point is, for instance, the
7
The 95th percentile is calculated heuristically. If the possible deviation exceeds 10%, it will be noted
in parenthesis after the figure in absolute terms.
February 2016
7
. The numerical value "Edges per
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