Anritsu 681XXC - Manual (Page 217)

At the System Configuration menu, press GPIB .
The Configure GPIB Menu (below) is displayed.
Verify that the GPIB address and terminator shown
on the display match the System Bus source address
and data terminator that are set on the 360B VNA.
If the address of the 681XXC on the System Bus
needs changing, press
GPIB Address . Enter the
new address using the cursor control key or the data
entry keypad and the terminator key
HZ
ms
ADRS
The new GPIB address will appear on the display.
To change the data terminator, press Line Term to
select the correct GPIB data delimiter.
Press SS Mode to turn on SS mode. This places the
681XXC in a source lock mode.
The signal generator is now configured for 360B
source lock mode operation.
Initiating 360B Source Lock Mode Operations
Turn on the 360B and configure it for source lock
mode of operation. (Refer to the 360B VNA opera-
tion manual.) Once configured, the 360B takes con-
trol of the signal generator.
When the 360B takes control, the display of all pa-
rameters on the 681XXC is disabled and the mes-
sages
SS MODE, Secure Mode Active , and Remote
appear on the front panel display.
681XXC OM 7-13
USE WITH USE WITH A 360B VECTOR
OTHER INSTRUMENTS NETWORK ANALYZER
SS MODE
When SS Mode is selected on, this
message is displayed (in the fre-
quency mode title bar) on all menu
displays to remind the operator
that the 681XXC is in a source lock
mode.
NOTES
A 360B VNA and a 68137C Source
in SS Mode should not be operated
below 2.1 GHz because it may fail to
lock.
A 360B VNA that is using a 3612A,
3613A, 3622A, 3623A, or 3631A
Test Set and a 681XXC Source in SS
Mode should not be operated above
60 GHz because it will fail to lock.
For operations above 60 GHz, use
the 681XXC Source in tracking
mode.