INDIVIDUAL SOURCE OPERATION
3-17
Mode selection
Modulation mode is selected as follows:
(1) Press the [UTIL] hard key to display the
Utilities Selection Menu 1
(additionally pressing
[Utils Menu 1]
if necessary). Then select
[Mod’n Mode]
to display the
Modulation Mode
Selection Menu
. This shows the currently selected modulation mode (see Fig. 3-10 below)
for the selected signal source.
B3901
Fig. 3-10 Modulation mode selection menu
(2) Use
the
[Up]
and
[Down]
keys to move the selection box over the required modulation
mode. Repeated pressing of the
[Down]
key will cause the screen to scroll, revealing further
selections.
(3) Press
[Select Mode].
The display changes to show your new current modulation mode.
(4) Press [SIG GEN] to display the Signal Generator menu which has been modified to show the
new configuration.
Signal Generator screens
Changing the modulation mode by means of the
Modulation Mode Selection Menu
affects the way
in which the Signal Generator screen is presented as follows:
If a single internal modulation mode (for example,
AM internal
) has been selected, the
[Select
Waveform]
key is displayed. This is replaced by the
[Select Coupling]
key if instead, a single
external modulation mode (for example,
FM external
) has been selected.
If a dual internal modulation mode (for example,
AM1 + AM2 internal
) has been selected, the
modulation field is divided vertically into two panels, one for each modulation channel as shown in
Fig. 3-11 below.
B3902
Fig. 3-11 Signal Generator menu with two internal modulation channels
