
4.3 Modulation
WF1945B
4-45
(4) Select modulation waveform (FUNCTION)
①
Use the
and
keys to produce the following display (FUNCTION flashes).
SIN
AM:
TYPE
DEPTH FREQ
FUNCTION
②
Press the
ENTER
key, then use the
and
keys to produce the following display (SIN
flashes).
SIN
AM:
TYPE
DEPTH FREQ FUNCTION
③
After selecting, press the
EXIT
key to release the setting mode.
The above completes amplitude modulation setting.
Other operations:
•
When the oscillation mode is changed to modulation (MODU), modulation occurs at the setting at that
time point.
• To stop modulation
:
Press the
STOP
key. Resume modulation by pressing the
START
key.
• Amplitude setting vs. maximum or minimum amplitudes
:
Max. amplitude = Amplitude setting
÷
2 (1 + (depth [%]
÷
100))
Min. amplitude = Amplitude setting
÷
2 (1
−
(depth [%]
÷
100))
•
At 0 % depth, the output amplitude is 1/2 the setting. At 100 % depth, the output amplitude is the
same as the setting.
•
Setting items at amplitude modulation (MODU menu)
TYPE: AM
DEPTH (modulation depth) [%]
FREQ (modulation frequency) [Hz]
FUNCTION (modulation waveform) [SIN,
,
,
,
]
Summary of Contents for WF1945B
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Page 3: ...DA00012505 002 WF1945B MULTIFUNCTION SYNTHESIZER Instruction Manual...
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Page 100: ...4 2 Sweep 4 38 WF1945B Sweep value and Z MARKER SYNC X DRIVE outputs is approx 100 to 125 s...
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