3-7 CW FREQUENCY
OPERATION Oneof the signal generator ’smajor functions is to produce discrete
CW frequencies across the frequency range of the instrument. The
following paragraphs describe how to place the 681XXC in the CW
frequency mode, select a CW frequency and power level for output,
and activate the CW ramp. Use the CW Frequency Mode menu map
(Chapter 4, Figure 4-2) to follow the menu sequences.
Selecting CW
Mode Toplace the 681XXC in the CW frequency mode,
press the main menu key
CW/SWEEP
SELECT
At the resulting menu display,press CW . The CW
Menu (below) is displayed.
This menu lets you perform the following:
qSelect a CW frequency for output.
qCopy the current frequency and power infor-
mation to the current list index. (Refer to page
3-41 for the list sweep frequency mode operat-
ing instructions.)
qGo to the master-slave menu. (Refer to Chap-
ter 7, paragraph 7-2 for Master-Slave mode op-
erating instructions.)
qSelect an output power level for the CW fre-
quency.
qGo to the CW ramp menu (set the ramp sweep
time and turn the CW ramp on/off).
681XXC OM 3-21
LOCAL (FRONT CW FREQUENCY
PANEL) OPERATION OPERATION
NOTE
When the signal generator is reset,
itautomatically comesup operating
in the CW frequency mode.