Gigahertz Solutions NFA 30M Operating Manual page 18

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synchronisation will take place automatically once "CON-
FIG.NFA" is recorded onto the SD-card.
If the high pass is set at 50 Hz, this only refers to the broad
band reading or recording as it reduces the influence of
movement induced field components. For full information,
the frequency components of sinusoidal waves at exactly
16.7 Hz are still recorded separately and can be shown with
the help of the NFAsoft.
If the filter is set, it is therefore not unusual for the summary
indication "All3D" to be smaller than the indication for 16.7
Hz, as the signal components at 16.7 Hz are not integrated
in the total sum of "All3D". Furthermore, the signals of the
different frequencies are added up quadratically, which in
turn means that the result of simply adding the individual
signals will also differ from the sum of "All3D".
(For more information on this matter see chapter 9)
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January 2018 © Gigahertz Solutions GmbH