Datasheet

50
5.15.9 Recall and Save Arbitrary Waveform
(1) Recall the saved waveform: press Stored Wavekey to enter into the file manager
and select the file with “*.arb” extension. Then recall it as the method introduction in
chapter 5.15.8,
(2) Recall the arbitrary waveform: new created arbitrary waveform can be saved in
non-volatile memory. Press Storekey to enter into the file manager and save it,
which will be saved as the extension “*.arb”, the method introduced in chapter
5.16.8.
Note: during the editing, any other function key pressing will exit the editing function and
the editing data will be lost, generator returns to the state before editing. Pay attention to
save the arbitrary waveform data with the reference to Store Waveform.
5.15.10 Arbitrary Operation
User can change the sampling rate, waveform length, amplitude and offset of arbitrary
during the creating of which.
Set sampling rate: press Sample Ratekey and set it by numeric key or knob within the
range from 1uSa/s to 125MSa/s. frequency is decided both by sampling rate and
arbitrary points, three parameters of which should follow the relationship:
Output Frequency=Sampling Rate * Waveform Length
Set waveform length: waveform length defines the actual sweep points, different from the
point in editing. PressWaveform Lengthand set it by numeric keys or knob within the
range from 1 to limited points. If the output waveform differ from the displayed waveform
after the editing operation including point insert, block copy, block cut, user need to
modify the parameters to output desired point.
Set Amplitude and Offset: the setting of amplitude and offset is same as the normal
operation to general waveforms.
5.15.11 Harmonic Waveform
As Fourier Transform theory tells, any periodic function can be decomposed to several
Sine function with different frequencies, amplitudes and phases. On the other hand, we
also can synthesize several Sine wave with different frequencies, amplitudes and phases
to a periodic arbitrary waveform. By this method, user can well analog the distorted
waveform in real life and supply the ideal signal source to testing device.
Our generator can make use of 2 to 50 harmonics to synthesize the arbitrary waveform,
each of them can be set independently the harmonic times, phase and amplitude. Press