NF WAVE FACTORY WF1967, Инструкция по эксплуатации

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4.4 Setting for Main Items
WF1967/WF1968
4-49
4.4.17 To Set Ramp Wave Symmetry
The waveform is assumed to be set to ramp wave [Ramp]. For how to set the waveform,

P.4-15.
The setting unit for symmetry is % only, and it is not possible to set or display in units of time.
a) How to Set Symmetry
1.
When the [Symm] field is selected and
the ENTER key is pressed, the input field
for pulse width time opens.
[Symm] is displayed on the first page.
2.
Select the digit to be changed by using the right or left arrow key, and then use the up or
down arrow key or the modify knob to increment the value. The change is immediately
reflected to the output.
Or use the numeric keypad to enter the value. Press the ENTER key or the unit key
(soft-key) to set the input value and reflect it to the output. When the ENTER key is
pressed, % is set as the unit.
b) Relationship Between Symmetry and Waveform
Depending on the symmetry setting, a waveform changes as follows. The symmetry is the total
ratio of the rising portion from start to finish. The point at which the phase is zero degrees has
been fixed to zero of the amplitude except in the case where the symmetry is 0%.
4.4.18 To Set the Equivalent Noise Bandwidth
When the noise waveform is selected, the [BW] item will appear to set the equivalent noise
bandwidth. The equivalent noise bandwidth can be set to seven different levels.
The noise density will go down when the equivalent bandwidth is wide, even at the same output
amplitude settings. Therefore, when wideband noise passes through a narrowband system the
amplitude will keep getting smaller. Please choose the appropriate bandwidth setting.
4.4.19 To Select Sub Output
Choose the signal output from the synchronization/sub output BNC terminal with the [SubOut]
setting on the second page of the Oscillator setting screen.
Although the selection list will change for the oscillation and other modes, the following selections
are available for the continuous oscillation mode.

Waveform Reference Phase Synchronization [Sync]
Phase zero
degree
Phase zero
degree
Phase zero
degree
Phase zero
degree
Phase zero
degree
Phase zero
degree
Symmetry
Input Field