NF WAVE FACTORY WF1967, Instruction Manual (Operations

Page: 108 / 330

4.7 Setting and Operation of Modulation
WF1967/WF1968
4-58
4.7.3 Common Settings and Operation of Modulation
The following explains the common settings and operation independent of the modulation type.
a) To set the oscillation mode modulation
b) To select the type of modulation
Select from the following eight types in the modulation types [ModType] on the second page of
the setting screen.
c) To set the carrier condition
Set each parameter of the carrier signals on the first page of the setting screen.
d) To set the modulation width
Set in the modulation width on the second page of the setting screen. The name of displayed
item differs among [Deviation], [Depth], and [HopFreq] depending on the modulation type.
For details, see the description of each modulation type.
e) To modulate with internal signal source
Set the modulation source [Source] as internal [Int] on the second page of the setting screen.
It is necessary to set the internal modulation waveform [ModFctn], the internal modulation
frequency [ModFreq], and the internal modulation phase [ModPhs].
Select the internal modulation waveform [ModFctn] from the following seven types:
• Sine wave [Sine] • Down ramp wave [DnRamp]
• Square wave (duty 50%) [Square] • Noise [Noise]
• Triangle wave (symmetry 50%) [Triangle] • Arbitrary wave [ARB]
• Up ramp wave [UpRamp]
If the internal modulation waveform is noise, the internal modulation frequency cannot be set.
When the modulation type is FSK or PSK, the internal modulation waveform is fixed to the
square wave with duty 50%.
Arbitrary waveforms in an array format use converted data comprising a total of 8192 points
when an arbitrary waveform is selected as the internal modulation waveform. The arbitrary
Press the MODE key to open the oscillation
mode selection list. Please select the
modulated oscillation mode [Modulation].
(

P. 4-27)
This switches to modulated oscillation mode.
There are 2 pages of the setting screens in the
modulated oscillation mode. You can switch the
page by using the NEXT key.
Modulation
type
•
FM[FM]

P. 4-61
• FSK[FSK]

P. 4-62
• PM[PM]

P. 4-63
• PSK[PSK]

P. 4-64
• AM[AM]

P. 4-66
• AM(DSB-SC)[AM(SC)]

P. 4-68
• DC offset modulation [OFSM]

P. 4-69
•
PWM[PWM]

P. 4-70
Changes the oscillation mode to
[Modulation]