GW Instek AFG-3000 Series - Manual (Page 73)

MODULATION
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6. Press F1 (%) to choose %
units.
Range Depth 0%~120%
Default depth 100%
Note When the modulation depth is greater than 100%, the
output cannot exceed ±5VPeak (10kΩ load).
If an external modulation source is selected,
modulation depth is limited to ± 5V from the MOD
INPUT terminal on the rear panel. For example, if
modulation depth is set to 100%, then the maximum
amplitude is +5V, and the minimum amplitude is -5V.
Selecting (AM) Modulation Source
The function generator will accept an internal or external source for
AM modulation. The default source is internal.
Panel Operation 1. Press the MOD key.
2. Press F1 (AM).
3. Press F1 (Source).
4. To select the source, press
F1 (Internal) or F2
(External).
~
5. Press F6 (Return) to return
to the menu.
External Source Use the MOD INPUT terminal
on the rear panel when using an
external source.