Gigahertz Solutions NFA 30M Operating Manual page 13

 zoomed in when scrolling up or by using the „Up Arrow"
 zoomed out when scrolling down or by using the „Down
Arrow"
 centered around the clock time indicated by the position
of the mouse
The data area can be repositioned on the x-axis by a left
mouse click hold and drag left or right, alternatively by using
the "right" and "left" arrows of the keyboard. Zooming of the
time on the x-axis can also be achieved via the View Menu.
Scaling of the y-axis is done automatically by default but
can also be adjusted manually through the View / Scale
menu.
Insert Comments directly into the Diagram
Areas of special interest can be commented directly in the
plotted data. Simply position your mouse, right click and
enter your comments in the comment window. Click Ok to
have the comment embedded into the data, marking an
event or section of interest.
Program Window "Statistics Channels"
To display the data of a particular channel, click the triangle
to the left of the channel.
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
numerical value "Edges per 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 function.
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 components at 16.7 Hz will also be recorded in
the correspondent channel. In this case the sum of the fre-
quency 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 inten-
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.
© Gigahertz Solutions GmbH
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Made in Germany
7
. The
January 2018