Gigahertz Solutions NFA 1000, Руководство по эксплуатации

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Made in Germany
© Gigahertz Solutions GmbH
- 13 -
May 2017
which allows for a more detailed analysis of the LF world in a
way which has long since been considered essential in the
analysis of high frequencies. This option supplies important
information for the evaluation of “Dirty Power” (E-field > 2
kHz).
Hold
= retain maximum value
Retains „tRMS“ or „Peak“ of the signal, depending on the
switch position from which „Hold“ was chosen. When the
signal switch is set to „Hold“ only the reading on the display
is held, the real time value will still be recorded onto the SD
card, if recording.
4.6 SD Memory Card
This is the slot for the SD card. To prevent it
from being ejected inadvertently slide it in
beyond the external surface of the casing
until it snaps (use fingernail or pencil, if nec-
essary). To extract it press again to undo the
snap mechanism.
The high-speed SD memory card (4 GB, SDHC) supplied
with the instrument contains the current version of the NFA-
soft software and enough memory for several 36h record-
ings. Important: Please make sure to only use SANDISK
cards! We have had a lot of bad experiences with other
manufacturers.
Your PC will recognize the SD card as an external device
when connected by USB cable or slid into a card reading
device. It can then be processed with the standard function-
ality of your operating system. By inserting the SD memory
card directly into a card reader of the PC, data transfer will
be 40 times faster than by using the USB cable
9
.
Please note: Do not remove the SD memory card while
the NFA is running!
9
In order to make use of this speed advantage, your SD card reader needs to be
specified „SDHC“ which is standard for units built 2008 or later. For older units
inexpensive adaptors are available. The SD-card reader is included in the scope
of supply of the NFA 1000 only.