58
4.
BASIC OPERATION
MULTIFUNCTION GENERATOR
4.
Once the external addition settings have
been completed, select [OK] in the lower
part of the window and then press the
ENTER key to apply the external
addition setting change and close the
window.
To not change the external addition
setting, select [Cancel] in the lower part of
the window and then press the
ENTER key, or press the
CANCEL
key.
c) When the desired external addition condition cannot be selected
■
When the external addition cannot be set on (×2, ×10 setting)
External modulation is used.
To use external addition, change the modulation source to the internal source.
The external addition input terminal is shared with the external modulation input
terminal. Therefore, when an external modulation source is specified for modulated
oscillation except FSK and PSK, external addition cannot be used. The external addition
setting is always [Off] at such time.
Similarly, when external addition is used, external modulation cannot be used (except FSK,
PSK).
■
When the external addition gain cannot be set to the desired value
The external addition gain is determined by the output voltage range.
To set the external addition gain to ×2, set the amplitude and DC offset so that the output
voltage range is 4 V.
To set the external addition gain to ×10, set the amplitude and DC offset so that the output
voltage range is 20 V.
Since external addition is done at the last stage of waveform output (
)
p. 2), the addition
gain is closely related to the output voltage range. When the maximum output voltage of the
range is 20 V and 4 V, the addition gain is fixed to ×10 and ×2, respectively. Other addition
gain values cannot be selected.
)
p. 54
Conversely, when external addition is used, the maximum output voltage of the range is
fixed according to the addition gain. It should be noted in particular that when the addition
gain is ×10, the maximum output voltage is fixed to 20 V, so that the amplitude accuracy
and waveform quality may decline when the amplitude is made smaller.
Select [OK] and
then press the
ENTER key
ENTER
ENTER
CANCEL
