3-9
FIXED POWER LEVEL
OPERATION
The sweep generator provides leveled output power over a maximum
range of up to 28 dB (up to 131 dB with Option 2) for CW and sweep
frequency operations. Units with Option 15A provide leveled output
power over a maximum range of up to 22 dB (up to 125 dB with Op-
tion 2). The following paragraphs describe how to place the 681XXB in
fixed (non-swept) power level mode, select a power level for output,
and activate level offset. Use the Fixed (Non-Swept) Power Level
Mode menu map (Chapter 4, Figure 4-6) to follow the menu sequences.
Selecting
Fixed Power
Level Mode
To place the 681XXB in a fixed power level mode
from a CW or sweep (analog, step, or manual) fre-
quency menu, press the main menu key
LEVEL/ALC
SELECT
At the resulting menu display, press
Level
. The
Level Menu (below) is displayed.
This menu lets you perform the following:
Edit the power level parameter.
Edit the level offset parameter.
Turn level offset on/off.
Selecting a
Power Level
There are several ways to select a power level for
output. You can (1) edit the current power level, (2)
enter a new power level, or (3) select one of the 10
preset power level parameters.
Editing the Current Power Level
Press
Edit L1
to open the power level parameter,
then edit the current power level using the cursor
control key or the rotary data knob. To close the
open power level parameter, press
Edit L1
or make
another menu selection.
Entering a New Power Level
Press
Edit L1
to open the power level parameter,
then enter the new power level using the keypad
LOCAL (FRONT
FIXED POWER
PANEL) OPERATION
LEVEL OPERATION
681XXB OM
3-37
