LOCAL OPERATION
SQUARE WAVE
–MENU MAPS
MODULATION MODE
4-16
681XXB OM
SYSTEM
MODULATION
CW/SWEEP
SELECT
FREQUENCY
CONTROL
LEVEL/ALC
SELECT
LEVEL
CONTROL
SYSTEM
MODULATION
CW/SWEEP
SELECT
FREQUENCY
CONTROL
LEVEL/ALC
SELECT
LEVEL
CONTROL
Internal Square Wave Source -or-
External Square Wave Source
LOW Level Triggers RF -or-
HIGH Level Triggers RF
Select Frequency
Square Wave
Modulation On/Off
Internal Square Wave Source -or-
External Square Wave Source
LOW Level Triggers RF -or-
HIGH Level Triggers RF
Square Wave
Modulation On/Off
Front Panel Input
Rear Panel Input
Internal Square Wave Source Selected
External Square Wave Source Selected
Figure 4-12. Square Wave Modulation Mode
Menu Map
NOTE
Refer to Chapter 3, paragraph 3-12
for Square Wave Modulation Mode
operating instructions.