Rohde & Schwarz FSV3000, Руководство пользователя

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Getting started
R&S
®
FSVA3000/ R&S
®
FSV3000
56 User Manual 1178.8520.02 ─ 08
Redirecting storage to volatile memory
Alternatively, to avoid storing any sensitive data on the R&S FSV/A permanently, the
secure user mode was introduced (option R&S FSV3-K33). In secure user mode, the
instrument’s solid-state drive is write-protected so that no information can be written to
memory permanently. Data that the R&S
FSV/A normally stores on the solid-state drive
is redirected to volatile memory instead, which remains available only until the instru-
ment is switched off. This data includes:
●
Windows operating system files
●
Firmware shutdown files containing information on last instrument state
●
Self-alignment data
●
General instrument settings such as the IP address
●
Measurement settings
●
User data created during operation
(see also
Table 9-1 )
●
Any data created by other applications installed on the R&S FSV/A, for example,
text editors (Notepad), the clipboard, or drawing tools.
Users can access data that is stored in volatile memory just as in normal operation.
However, when the instrument’s power is switched off, all data in this memory is
cleared. Thus, in secure user mode, the instrument always starts in a defined, fixed
state when switched on.
To store data such as measurement results permanently, it must be stored to an exter-
nal storage device, such as a memory stick.
Limited storage space
The volatile memory used to store data in secure user mode is restricted to 256 MB.
Thus, a "Memory full" error can occur although the hard disk indicates that storage
space is still available.
Storing required data permanently
Any data that is to be available for subsequent sessions with the R&S FSV/A must be
stored on the instrument permanently, before activating the secure user mode . This
includes predefined instrument settings, transducer factors and self-alignment data.
Self-alignment data
Note that self-alignment data becomes invalid with time and due to temperature
changes. Therefore, to achieve optimal accuracy, it can be preferable to perform a new
self-alignment at the start of each new session on the R&S
FSV/A.
Restricted operation
Since permanent storage is not possible, the following functions are not available in
secure user mode:
●
Firmware update
●
Activating a new option key
Preparing for use