LOCAL OPERATION
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(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 Sig Gen menu which has been modified to show the new
configuration.
Sig gen screens
Changing the modulation mode by means of the Modulation Mode Selection Menu affects the way
in which the Sig Gen 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.
B3425
Fig. 3-11 Sig Gen menu with two internal modulation channels
If a dual mixed modulation mode − for example, AM1 internal & FM external −
has been selected,
the modulation field is divided horizontally into two panels, one for each modulation source as
shown in Fig. 3-12 below.
B3461
Fig. 3-12 Sig Gen menu with internal and external modulation sources
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General