Setting dwell time, 3-54, Setting step size, 3-54 – Anritsu 681XXC User Manual

Page 87

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Setting CW
Power Sweep
Step Size and
Dwell Time

There are two ways to set the size of each step of the
CW power sweep—set the step size or set the
number of steps. The step size range is 0.01 dB
(Log) or 0.001 mV (Linear) to the full power range of
the instrument; the number of steps range is 1 to
10,000. The dwell-time-per-step of the CW power
sweep can be set for any time in the range of 1 ms to
99 sec. If the sweep crosses a step attenuator set-
ting, there will be a sweep dwell of approximately
20 ms to allow setting of the step attenuator. The
step size and dwell-time-per-step are set from the
CW Level Sweep Ramp menu (below).

To go to the CW Level Sweep Ramp Menu from the
CW Level Sweep menu, press

Sweep Ramp

.

This menu lets you set the dwell time, the step size,
the number of steps, and go to the trigger menu.

Press

Dwell Time

to open the dwell-time-per-step

parameter.

Press

Step Size

to open the step size parameter.

Press

Num of Steps

to open the number of steps

parameter.

Open the parameter you wish to change, then edit
the current value using the cursor control key or ro-
tary data knob or enter a new value using the key
pad and appropriate termination key. When you
have finished setting the open parameter, close it by
pressing its menu soft-key or by making another
menu selection.

To go to the CW Level Sweep Trigger menu from
this menu, press

Trigger Menu

. The trigger menu is

described on the following page.

Press

Previous Menu

to return to the CW Level

Sweep Menu display.

3-54

681XXC OM

LOCAL (FRONT

POWER LEVEL

PANEL) OPERATION

SWEEP OPERATION

RANGE

This error message is displayed
when (1) the step size value entered
is greater than the level sweep
range or (2) the number of steps en-
tered results in a step size of less
than 0.01 dB (Log) or 0.001 mV
(Linear). Entering a valid step size
will clear the error.

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