3-15
SECURE OPERATION
The 681XXB can be operated in a secure mode of operation. In this se-
cure mode, the display of all frequency, power level, and modulation
parameters is disabled during both local (front panel) and remote
(GPIB) operations. The instrument will continue to function normally
in all other respects. The following paragraphs describe how to place
the sweep generator in secure mode and how to return to normal op-
eration.
To place the 681XXB in the secure mode, first press
SYSTEM
to display the System Menu.
Next, press
Secure
. This places the sweep gener-
ator in the secure mode and the Secure Menu (be-
low) is displayed.
NOTE
During secure mode, all main menu keys
and menu soft-keys operate normally.
The menu soft-key labels are displayed
and change with menu selections. Only
the parameter display is disabled.
To return the 681XXB to unsecured (normal) opera-
tion, press
SYSTEM
, then press
Reset
.
LOCAL (FRONT
SECURE
PANEL) OPERATION
OPERATION
681XXB OM
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