Anritsu 681XXC - Manual (Page 95)

Before going to the Leveling Menu from the ALC
Mode menu, select whether the external ALC signal
is to be connected to the front- or rear-panel
EXT
ALC IN connector.
At the ALC Mode menu, press Ext ALC Front to se-
lect front panel input, or Ext ALC Rear to select
rear panel input.
Now, press Leveling Menu to go to the Leveling
Menu (below).
Next, select the type of external sensor you are us-
ing to detect the output power.
To select the external ALC input from an external
detector, press
External Detector .
To select the external ALC input from a power me-
ter, press
Power Meter .
After you have made the external ALC input con-
nection and selected the sensor type, press
ALC Loop . The ALC Loop Menu (below) is dis-
played.
While monitoring the power level at the external de-
tection point, first press
Ext ALC Adj , then use the
cursor control key or rotary data knob to adjust the
external ALC signal to obtain the set power level.
To return to the Leveling Menu, press ALC Mode
then press Leveling Menu .
3-62 681XXC OM
LOCAL (FRONT LEVELING
PANEL) OPERATION OPERATIONS