BNC 645 - Manual (Page 40)

40
exponential-rise, exponential-fall, negative-ramp, sinc, and cardiac. The
default arbitrary waveform is an exponential-rise wave.
For each user-defined waveform, one may create up to 262,144 (256k)
points from the remote interface. If you choose an arbitrary waveform as
the modulating waveform for AM, FM, PM, or PWM, the waveform is
automatically limited to 4k points and the extra points will be removed by
decimation.
User-defined waveforms
Model 645 supports user-definded waveforms. You may use the
Wavepatt
waveform and pattern editor to create the waveforms you
want or import the waveforms from the oscilloscope that you captured
previously. For more information on the user-defined waveforms, please
refer to the on-line help of Wavepatt.
How to output a built-in arbitrary waveform
1. Press the Arb button to choose arbitrary waveform output.
2. Press the softkey under Select Wform and then the softkey under
Built In.
3. Choose the desired waveform from the five built-ins by pressing
the corresponding softkey.
4. Refer to Chapter 3 for configuring frequency/period, amplitude
and dc offset voltage.
5. Press the Graph button to view all the waveform parameters.
Figure 4-6
Figure 4-7