Gigahertz Solutions NFA 30M Operating Manual page 15

Slope = Marks a rise of measured field intensity between adjacent
points in time by a user defined slope rate in V/m, mG or nT per sec-
ond. This is independent of the measuring intervals. A hypothetical in-
terval of 1 second would give that increment. This permits to compare
results recorded with different recording intervals.
Absolute threshold = Marks a rise of measured field intensity between
adjacent points in time by a user defined threshold level in V/m, mG or
nT. Any rise beyond this absolute threshold value will be marked.
The selected edge criteria will be graphically displayed on the top of
the plotted data section and will appear numerically in the field channel
statistical data section under edges per hour for that particular time
span. All edge markings displayed appear in real time and allow for a
quick visual analysis.
When clicking the "Ok" button, the selected criteria and the set value
will be transferred into the statistical values of the channel. When re-
accessing the menu option "Set edge criteria", the pre-set values will
again be displayed (under construction).
Select HF-Unit
therefore recorded in mV). Upon selection of this point of the menu the
window shown on the right will open up for a selection of the HF-Ana-
lyser settings during the recording period.
nT <> mG
This function allows to subsequently convert a chosen channel's data
from milliGauss to nanoTesla and vice versa.
Convert Units
This function can be used to display whichever values recorded via the
AC/DC input port directly in its original unit. This way, an HF-recording
can be shown either in µW/m² or V/m. A new channel will automatically
be generated, thus avoiding any potential loss of data.
Rename or Delete Channel
Allows to rename or delete the marked channel.
Summarise Channels
The plotted channels (selected on the left) will be added up ("square
sum") and added as a new channel. The sum of 100/120 Hz, 150/180
Hz, R<2 kHz and >2 kHz are considered to be the relevant parameter
for the evaluation of "dirty electricity".
Extras
Create KML-File
Required as a plugin for the connection of GPS-data, NFA logs and
Google Earth (currently in beta level). Please ask for the current manual
by e-mail.
© Gigahertz Solutions GmbH
This function will only be dis-
played when selecting "CH 4" in
the "Channels" window and the
data recorded in this channel are
those of an external input device
such as an HF-Analyser (and are
- 13 -
Made in Germany
April 2020