Manual
Sweep Mode In manual sweep frequency mode, the output fre-
quency can be manually tuned in phase-locked steps
between the selected start and stop frequencies us-
ing the rotary data knob. As the knob is turned, the
current output frequency is displayed on the data
display as Fm. The step size or number of steps be-
tween the start and stop frequencies are controlla-
ble from the manual sweep menu. The step size
range is 1 kHz (0.1 Hz with Option 11)to the full
frequency range of the instrument; the number of
steps range is 1 to 10,000.
Selecting
Manual
Sweep Mode
Toplace the 681XXC in manual sweep frequency
mode, press the main menu key
CW/SWEEP
SELECT
At the resulting menu display,press Manual . The
Manual Sweep Menu (below) is then displayed.
This menu lets you perform the following:
qSelect a sweep range (edit the start and stop
frequency parameters).
qSet the step size or number of steps (previously
described on page 3-30).
3-32 681XXC OMLOCAL (FRONT SWEEP FREQUENCY
PANEL) OPERATION OPERATION