Instrument Declassification
R&S
®
ZVH
6
Instrument Security Procedures 1178.4324.02 ─ 02
●
Factory default settings (display type and contrast, installed options, baud rate, lan-
guage, length unit etc.)
●
User general settings (display type and contrast, installed options, baud rate, lan-
guage, length unit etc.)
●
User data (cable models, transducers, limit lines, channel tables, user standards)
●
User calibration data (DTF calibration data, tracking generator calibration data,
etc.)
●
Saved user data sets
The flash memory does not lose its memory when power is removed. Therefore, the
memory device must be cleared before leaving the secured area.
Sanitization procedure:
Master preset procedure (see
Chapter 5, "Instrument Declas-
The instrument firmware and factory default settings section of the flash memory are
not erased by the master preset procedure. The instrument firmware and factory
default settings memory section does not hold any user data.
5
Instrument Declassification
Instrument declassification requires firmware 1.70 or higher.
Before you can remove the R&S
ZVH Cable and Antenna Analyzer from a secured
area (for example to perform service or calibration), all classified user data needs to be
removed. You can declassify the R&S
ZVH as follows:
1. Turn off the R&S
ZVH. This will sanitize the volatile memory.
2. To sanitize the internal Flash memory, perform the following steps:
a) Make sure, that no USB mass memory device is connected.
b) Press the front panel buttons [PRESET] and softkey [5] and hold them while
switching on the instrument again.
After a few seconds, the sanitizing procedure starts.
Sanitizing is indicated by the message "Secure Formatting Flash, please wait!" on
the instrument's screen. The sanitizing procedure takes approximately 8 minutes.
Afterwards, the instrument reboots. Since permanent adjustment values are not loca-
ted in instrument settings and user data section of the flash, the validity of the
R&S
ZVH Cable and Antenna Analyzer’s calibration is maintained throughout the sani-
tization.
Following these steps removes all user data from the R&S
ZVH Cable and Antenna
Analyzer. The instrument can now leave the secured area.
