Gigahertz Solutions NFA 30M Operating Manual page 19

A small vertical "Low Batt" indication appears on the display
This is an additional information for the user and is shown once less
An intermittent "Low Batt" indication can be ignored
(temporarily increased power consumption due to internal processes).
The meter turns off after quarter of an hour
The auto-power-off interval can be changed in NFAsoft.
(Auto-power-off is automatically deactivated while recording).
The sum of the frequency specific channels is higher than the
value of "All3D"
The signals of the different frequencies are added up as square
root out of the sum of squares, which means that a simple addi-
tion of the individual signals will result in a higher value than the
sum of "All3D". For example, if you take 500 nT at 16.7 Hz plus
1000 nT at 50 Hz, a simple addition will amount to 1500 nT,
whereas the quadratic addition (= "All3D") will amount to 1118 nT.
NFAsoft is showing measurement values at 16.7 Hz in
spite of the 50 Hz high pass filter being set AND the sum
of the 16.7 Hz channel and the other channels is higher
than the value of "All3D"
If the 50 Hz high pass filter has been set with the help of the con-
figuration part of NFAsoft (maybe even as pre-setting), this only ap-
plies to the channels "All3D", "AllX", "AllY", and "AllZ". Neverthe-
less, possible frequency components at 16.7 Hz will also be rec-
orded in the correspondent channel. In this case the sum of the
frequency specific channels may be higher than that of "All3D".
The NFA was configurated according to customer require-
ments with NFAsoft, but when restarting, NFAsoft shows
the original settings
The "CONFIG.NFA" file on the SD-card transfers user-specific con-
figurations to the NFA. NFAsoft can write this file, but not read it.
Therefore you cannot use NFAsoft to check the configuration of the
You can save configurations as presets to a dropdown menu in NFsoft.
What's the purpose of the file types and where are they saved?
"CONFIG.NFA" -> user configurations -> saved on the SD-card
© Gigahertz Solutions GmbH
than 4-8 hours of battery life time are remaining.
Time offset in the records?
NFA, but only to install new ones.
"NFAsoft.ini" -> Presettings for NFAsoft ->
saved in the NFAsoft folder
Made in Germany
See page 14/15
April 2020