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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 ERR
This error message is displayed
when (1) the sweep start frequency
entered is greater than the stop fre-
quency, or (2) the
dF
value entered
results in a sweep outside the range
of the 681XXA. Entering valid val-
ues will clear the error.
3-28
681XXA OM