Teledyne LeCroy ArbStudio - Manual (Page 190)

ArbStudio
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Steps to Creating Advanced Waveform
Components Using Formulas
Similar to most other tasks in ArbStudio, you must first create a workspace
with Arbitrary Waveform Generator as the Operating Mode and at least
one Analog Channel.
PLEASE NOTE THE FOLLOWING:

At least one Direct Digital Synthesis (DDS) Channel must be in your
workspace for the Frequency Modulation, Phase Modulation, and
Linear Frequency Sweep examples.

See steps 5 and 6 in Arbitrary Waveform Generator Setup Example
(on page 27) for details.
If you already have a workspace open, be sure it meets the aforementioned
requirements before proceeding with the following steps:
1. Double-click the Waveform Sequencer under Channel 1 (Arbitrary)
on the Device Control Tree. (Channel 1 can be any Analog channel
you have configured under Arbitrary Waveform Generator operating
mode in your workspace.)
The Waveform Sequencer is then shown.