Selecting a
Sweep Range
Selecting a sweep range involves choosing a start
and a stop frequency for the frequency sweep. The
sweep range selection process is identical for all
sweep frequency modes (analog, step, and manual).
There are several ways you can select a sweep
range, including:
Editing the current start and stop frequency
parameter values.
Entering new start and stop frequency parame-
ter values.
Selecting one of the preset sweep range pa-
rameters (
F1-F2
,
F3-F4
,
F5-dF
, or
F6-dF)
.
Editing the Current Start / Stop Frequencies
To edit the current sweep range start by opening
either the start or stop frequency parameter (in the
display above,
Edit F1
opens the start frequency pa-
rameter;
Edit F2
opens the stop frequency parame-
ter).
Edit the open frequency parameter using the cursor
control key or the rotary data knob. When you are
finished, close the open parameter by pressing its
menu edit soft-key or by making another menu se-
lection.
Entering New Start / Stop Frequencies
To enter a new sweep range start by opening either
the start or stop frequency parameter (press
Edit F1
or
Edit F2
).
Enter a new frequency using the keypad and appro-
priate terminator key. When you are finished, close
the open parameter by pressing its menu edit soft-
key or by making another menu selection.
LOCAL (FRONT
SWEEP FREQUENCY
PANEL) OPERATION
OPERATION
RANGE
This error message is displayed
when (1) the analog sweep start fre-
quency entered is greater than the
stop frequency, or (2) the
dF
value
entered results in a sweep outside
the range of the 681XXB. Entering
valid values will clear the error.
681XXB OM
3-29
